diff --git a/project.clj b/project.clj
index 55fb09d..541e8eb 100644
--- a/project.clj
+++ b/project.clj
@@ -9,6 +9,7 @@
                  [clj-oauth "1.5.5"]
                  [cljsjs/react-leaflet "1.6.5-0"]
                  [cljs-ajax "0.7.4"]
+                 [clojure.java-time "0.3.2"]
                  [com.cemerick/url "0.1.1"]
                  [compojure "1.6.1"]
                  [conman "0.8.2"]
diff --git a/resources/sql/youyesyet.postgres.sql b/resources/sql/youyesyet.postgres.sql
deleted file mode 100644
index e54ce0e..0000000
--- a/resources/sql/youyesyet.postgres.sql
+++ /dev/null
@@ -1,1133 +0,0 @@
-------------------------------------------------------------------------
---	Database definition for application 
---	
---	youyesyet version 0.1.1 
---	
---	auto-generated by [Application Description Language framework] 
---	
---	(https://github.com/simon-brooke/adl) at 20180721T171142.862Z 
---	
---	A web-app intended to be used by canvassers
---	  campaigning for a 'Yes' vote in the second independence
---	  referendum. The web-app will be delivered to canvassers out
---	  knocking doors primarily through an HTML5/React single-page app
---	  designed to work on a mobile phone; it's possible that someone
---	  else may do an Android of iPhone native app to address the same
---	  back end but at present I have no plans for this. There must also
---	  be an administrative interface through which privileged users can
---	  set the system up and authorise canvassers, and a 'followup'
---	  interface through which issue-expert specialist canvassers can
---	  address particular electors' queries. 
-------------------------------------------------------------------------
-
-------------------------------------------------------------------------
---	security group admin 
-------------------------------------------------------------------------
-
-CREATE GROUP admin;
-
-------------------------------------------------------------------------
---	security group analysts 
-------------------------------------------------------------------------
-
-CREATE GROUP analysts;
-
-------------------------------------------------------------------------
---	security group canvassers 
-------------------------------------------------------------------------
-
-CREATE GROUP canvassers;
-
-------------------------------------------------------------------------
---	security group issueeditors 
-------------------------------------------------------------------------
-
-CREATE GROUP issueeditors;
-
-------------------------------------------------------------------------
---	security group issueexperts 
-------------------------------------------------------------------------
-
-CREATE GROUP issueexperts;
-
-------------------------------------------------------------------------
---	security group public 
-------------------------------------------------------------------------
-
-CREATE GROUP public;
-
-------------------------------------------------------------------------
---	security group teamorganisers 
-------------------------------------------------------------------------
-
-CREATE GROUP teamorganisers;
-
-------------------------------------------------------------------------
---	primary table addresses for entity addresses 
---	
---	Addresses of all buildings which contain
---	    dwellings. 
-------------------------------------------------------------------------
-CREATE TABLE addresses
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 address VARCHAR(256) NOT NULL,
-	 postcode VARCHAR(16) CONSTRAINT pattern_1 CHECK (postcode ~* '^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([AZa-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z]))))[0-9][A-Za-z]{2})$'),
-	 phone VARCHAR(16),
-	 district_id INTEGER,
-	 latitude DOUBLE PRECISION,
-	 longitude DOUBLE PRECISION,
-	 locality INTEGER
-);
-GRANT SELECT ON addresses TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON addresses TO admin ;
-GRANT UPDATE ON addresses TO admin ;
-GRANT DELETE ON addresses TO admin ;
-
-------------------------------------------------------------------------
---	primary table authorities for entity authorities 
---	
---	Authorities which may authenticate canvassers to
---	    the system. 
-------------------------------------------------------------------------
-CREATE TABLE authorities
-(
-	 id VARCHAR(32) NOT NULL PRIMARY KEY,
-	 request_token_uri VARCHAR(256) NOT NULL,
-	 access_token_uri VARCHAR(256) NOT NULL,
-	 authorize_uri VARCHAR(256) NOT NULL,
-	 consumer_key VARCHAR(32) DEFAULT 'youyesyet' NOT NULL,
-	 consumer_secret VARCHAR(256) NOT NULL
-);
-GRANT SELECT ON authorities TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON authorities TO admin ;
-GRANT UPDATE ON authorities TO admin ;
-GRANT DELETE ON authorities TO admin ;
-
-------------------------------------------------------------------------
---	primary table canvassers for entity canvassers 
---	
---	Primary users of the system: those actually
---	    interviewing electors. 
-------------------------------------------------------------------------
-CREATE TABLE canvassers
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 username VARCHAR(32) NOT NULL,
-	 fullname VARCHAR(64) NOT NULL,
-	 avatar VARCHAR(),
-	 bio TEXT,
-	 elector_id INTEGER,
-	 address_id INTEGER NOT NULL,
-	 phone VARCHAR(16),
-	 email VARCHAR(128),
-	 authority_id VARCHAR(32) NOT NULL,
-	 authorised BOOLEAN
-);
-GRANT SELECT ON canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON canvassers TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT UPDATE ON canvassers TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT DELETE ON canvassers TO admin ;
-
-------------------------------------------------------------------------
---	primary table districts for entity districts 
---	
---	Electoral districts: TODO: Shape (polygon)
---	    information will need to be added, for use in
---	    maps. 
-------------------------------------------------------------------------
-CREATE TABLE districts
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 name VARCHAR(64) NOT NULL
-);
-GRANT SELECT ON districts TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	public,
-	teamorganisers ;
-GRANT INSERT ON districts TO admin ;
-GRANT UPDATE ON districts TO admin ;
-GRANT DELETE ON districts TO admin ;
-
-------------------------------------------------------------------------
---	primary table dwellings for entity dwellings 
---	
---	All dwellings within addresses in the system; a
---	    dwelling is a house, flat or appartment in which electors live.
---	    Every address should have at least one dwelling; essentially,
---	    an address maps onto a street door and dwellings map onto
---	    what's behind that door. So a tenement or a block of flats
---	    would be one address with many dwellings. 
-------------------------------------------------------------------------
-CREATE TABLE dwellings
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 address_id INTEGER NOT NULL,
-	 sub_address VARCHAR(32)
-);
-GRANT SELECT ON dwellings TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON dwellings TO admin ;
-GRANT UPDATE ON dwellings TO admin ;
-GRANT DELETE ON dwellings TO admin ;
-
-------------------------------------------------------------------------
---	primary table electors for entity electors 
---	
---	All electors known to the system; electors are
---	    people believed to be entitled to vote in the current
---	    campaign. 
-------------------------------------------------------------------------
-CREATE TABLE electors
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 name VARCHAR(64) NOT NULL,
-	 dwelling_id INTEGER NOT NULL,
-	 phone VARCHAR(16),
-	 email VARCHAR(128),
-	 gender VARCHAR(32) DEFAULT 'Unknown',
-	 signature TEXT
-);
-GRANT SELECT ON electors TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON electors TO admin ;
-GRANT UPDATE ON electors TO admin ;
-GRANT DELETE ON electors TO admin ;
-
-------------------------------------------------------------------------
---	primary table events for entity events 
---	
---	
---	      An event to which a team or teams are invited. Typically created 
---	by the team organiser(s).
---	      May be a training event, a social event or a canvassing 
---	session.
---	 
-------------------------------------------------------------------------
-CREATE TABLE events
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 name VARCHAR(64) NOT NULL,
-	 date DATE,
-	 time TIME,
-	 decription TEXT,
-	 cancelled BOOLEAN DEFAULT false
-);
-GRANT SELECT ON events TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON events TO admin,
-	teamorganisers ;
-GRANT UPDATE ON events TO admin,
-	teamorganisers ;
-GRANT DELETE ON events TO admin ;
-
-------------------------------------------------------------------------
---	primary table followupactions for entity followupactions 
---	
---	Actions taken on followup
---	    requests. 
-------------------------------------------------------------------------
-CREATE TABLE followupactions
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 request_id INTEGER NOT NULL,
-	 actor INTEGER NOT NULL,
-	 date TIMESTAMP DEFAULT 'now()' NOT NULL,
-	 notes TEXT,
-	 closed BOOLEAN DEFAULT false
-);
-GRANT SELECT ON followupactions TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts ;
-GRANT INSERT ON followupactions TO admin,
-	issueexperts ;
-GRANT UPDATE ON followupactions TO admin ;
-GRANT DELETE ON followupactions TO admin ;
-
-------------------------------------------------------------------------
---	primary table followupmethods for entity followupmethods 
---	
---	Methods which may be used to follow up a followup request. Reference 
---	data. 
-------------------------------------------------------------------------
-CREATE TABLE followupmethods
-(
-	 id VARCHAR(32) NOT NULL PRIMARY KEY
-);
-GRANT SELECT ON followupmethods TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON followupmethods TO admin ;
-GRANT UPDATE ON followupmethods TO admin ;
-GRANT DELETE ON followupmethods TO admin ;
-
-------------------------------------------------------------------------
---	primary table followuprequests for entity followuprequests 
---	
---	Requests for a followup with an issue
---	    expert 
-------------------------------------------------------------------------
-CREATE TABLE followuprequests
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 elector_id INTEGER NOT NULL,
-	 visit_id INTEGER NOT NULL,
-	 issue_id VARCHAR(32) NOT NULL,
-	 method_id VARCHAR(32) NOT NULL
-);
-GRANT SELECT ON followuprequests TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON followuprequests TO admin,
-	canvassers ;
-
-
-
-------------------------------------------------------------------------
---	primary table genders for entity genders 
---	
---	All genders which may be assigned to
---	    electors. 
-------------------------------------------------------------------------
-CREATE TABLE genders
-(
-	 id VARCHAR(32) NOT NULL PRIMARY KEY
-);
-GRANT SELECT ON genders TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON genders TO admin ;
-GRANT UPDATE ON genders TO admin ;
-GRANT DELETE ON genders TO admin ;
-
-------------------------------------------------------------------------
---	primary table intentions for entity intentions 
---	
---	Intentions of electors to vote for options
---	    elicited in visits. 
-------------------------------------------------------------------------
-CREATE TABLE intentions
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 visit_id INTEGER NOT NULL,
-	 elector_id INTEGER,
-	 option_id VARCHAR(32) NOT NULL,
-	 locality INTEGER NOT NULL
-);
-GRANT SELECT ON intentions TO admin,
-	analysts,
-	canvassers ;
-GRANT INSERT ON intentions TO admin,
-	canvassers ;
-
-
-
-------------------------------------------------------------------------
---	primary table issues for entity issues 
---	
---	Issues believed to be of interest to electors,
---	    about which they may have questions. 
-------------------------------------------------------------------------
-CREATE TABLE issues
-(
-	 id VARCHAR(32) NOT NULL PRIMARY KEY,
-	 url VARCHAR(256),
-	 current BOOLEAN DEFAULT true,
-	 brief TEXT
-);
-GRANT SELECT ON issues TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON issues TO admin,
-	issueeditors ;
-GRANT UPDATE ON issues TO admin,
-	issueeditors ;
-GRANT DELETE ON issues TO admin ;
-
-------------------------------------------------------------------------
---	primary table options for entity options 
---	
---	Options in the election or referendum being
---	    canvassed on 
-------------------------------------------------------------------------
-CREATE TABLE options
-(
-	 id VARCHAR(32) NOT NULL PRIMARY KEY
-);
-GRANT SELECT ON options TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON options TO admin ;
-GRANT UPDATE ON options TO admin ;
-GRANT DELETE ON options TO admin ;
-
-------------------------------------------------------------------------
---	primary table roles for entity roles 
---	
---	A role (essentially, the same as a group, but
---	    application layer rather than database layer) of which a user
---	    may be a member. 
-------------------------------------------------------------------------
-CREATE TABLE roles
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 name VARCHAR(64) NOT NULL
-);
-GRANT SELECT ON roles TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON roles TO admin ;
-GRANT UPDATE ON roles TO admin ;
-GRANT DELETE ON roles TO admin ;
-
-------------------------------------------------------------------------
---	primary table teams for entity teams 
-------------------------------------------------------------------------
-CREATE TABLE teams
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 name VARCHAR(64) NOT NULL,
-	 district_id INTEGER NOT NULL,
-	 latitude DOUBLE PRECISION,
-	 longitude DOUBLE PRECISION
-);
-GRANT SELECT ON teams TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON teams TO admin,
-	teamorganisers ;
-GRANT UPDATE ON teams TO admin,
-	teamorganisers ;
-GRANT DELETE ON teams TO admin ;
-
-------------------------------------------------------------------------
---	primary table visits for entity visits 
---	
---	All visits made by canvassers to dwellings in
---	    which opinions were recorded. 
-------------------------------------------------------------------------
-CREATE TABLE visits
-(
-	 id SERIAL NOT NULL PRIMARY KEY,
-	 address_id INTEGER NOT NULL,
-	 canvasser_id INTEGER NOT NULL,
-	 date TIMESTAMP DEFAULT 'now()' NOT NULL
-);
-GRANT SELECT ON visits TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON visits TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT UPDATE ON visits TO admin ;
-GRANT DELETE ON visits TO admin ;
-
-------------------------------------------------------------------------
---	convenience view lv_addresses of entity addresses for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_addresses AS
-SELECT addresses.address,
-	addresses.postcode,
-	addresses.phone,
-	districts.name AS district_id_expanded,
-	addresses.district_id,
-	addresses.latitude,
-	addresses.longitude,
-	addresses.locality,
-	addresses.id
-FROM addresses, districts
-WHERE addresses.district_id = districts.id
-;
-GRANT SELECT ON lv_addresses TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_authorities of entity authorities for lists, et 
---	cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_authorities AS
-SELECT authorities.request_token_uri,
-	authorities.access_token_uri,
-	authorities.authorize_uri,
-	authorities.consumer_key,
-	authorities.consumer_secret,
-	authorities.id
-FROM authorities
-;
-GRANT SELECT ON lv_authorities TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_canvassers of entity canvassers for lists, et 
---	cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_canvassers AS
-SELECT canvassers.username,
-	canvassers.fullname,
-	canvassers.avatar,
-	canvassers.bio,
-	electors.name AS elector_id_expanded,
-	canvassers.elector_id,
-	addresses.address ||', '|| addresses.postcode AS address_id_expanded,
-	canvassers.address_id,
-	canvassers.phone,
-	canvassers.email,
-	authorities.id AS authority_id_expanded,
-	canvassers.authority_id,
-	canvassers.authorised,
-	canvassers.id
-FROM canvassers, authorities, addresses, electors
-WHERE canvassers.elector_id = electors.id
-	AND canvassers.address_id = addresses.id
-	AND canvassers.authority_id = authorities.id
-;
-GRANT SELECT ON lv_canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_districts of entity districts for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_districts AS
-SELECT districts.name,
-	districts.id
-FROM districts
-;
-GRANT SELECT ON lv_districts TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	public,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_dwellings of entity dwellings for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_dwellings AS
-SELECT addresses.address ||', '|| addresses.postcode AS address_id_expanded,
-	dwellings.address_id,
-	dwellings.sub_address,
-	dwellings.id
-FROM dwellings, addresses
-WHERE dwellings.address_id = addresses.id
-;
-GRANT SELECT ON lv_dwellings TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_electors of entity electors for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_electors AS
-SELECT electors.name,
-	addresses.address ||', '|| addresses.postcode ||', '|| dwellings.sub_address AS dwelling_id_expanded,
-	electors.dwelling_id,
-	electors.phone,
-	electors.email,
-	genders.id AS gender_expanded,
-	electors.gender,
-	electors.signature,
-	electors.id
-FROM dwellings, addresses, genders, electors
-WHERE electors.dwelling_id = dwellings.id
-	AND electors.gender = genders.id
-;
-GRANT SELECT ON lv_electors TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_events of entity events for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_events AS
-SELECT events.name,
-	events.date,
-	events.time,
-	events.decription,
-	events.cancelled,
-	events.id
-FROM events
-;
-GRANT SELECT ON lv_events TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_followupactions of entity followupactions for 
---	lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_followupactions AS
-SELECT electors.name ||', '|| addresses.address ||', '|| addresses.postcode ||', '|| visits.date ||', '|| issues.id AS request_id_expanded,
-	followupactions.request_id,
-	canvassers.username ||', '|| canvassers.fullname ||', '|| addresses.address ||', '|| addresses.postcode ||', '|| canvassers.phone ||', '|| canvassers.email AS actor_expanded,
-	followupactions.actor,
-	followupactions.date,
-	followupactions.notes,
-	followupactions.closed,
-	followupactions.id
-FROM followuprequests, visits, canvassers, addresses, followupactions, issues, electors
-WHERE followupactions.request_id = followuprequests.id
-	AND followupactions.actor = canvassers.id
-;
-GRANT SELECT ON lv_followupactions TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts ;
-
-------------------------------------------------------------------------
---	convenience view lv_followupmethods of entity followupmethods for 
---	lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_followupmethods AS
-SELECT followupmethods.id
-FROM followupmethods
-;
-GRANT SELECT ON lv_followupmethods TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_followuprequests of entity followuprequests for 
---	lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_followuprequests AS
-SELECT electors.name AS elector_id_expanded,
-	followuprequests.elector_id,
-	addresses.address ||', '|| addresses.postcode ||', '|| visits.date AS visit_id_expanded,
-	followuprequests.visit_id,
-	issues.id AS issue_id_expanded,
-	followuprequests.issue_id,
-	followupmethods.id AS method_id_expanded,
-	followuprequests.method_id,
-	followuprequests.id
-FROM followuprequests, visits, addresses, issues, electors, followupmethods
-WHERE followuprequests.elector_id = electors.id
-	AND followuprequests.visit_id = visits.id
-	AND followuprequests.issue_id = issues.id
-	AND followuprequests.method_id = followupmethods.id
-;
-GRANT SELECT ON lv_followuprequests TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_genders of entity genders for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_genders AS
-SELECT genders.id
-FROM genders
-;
-GRANT SELECT ON lv_genders TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_intentions of entity intentions for lists, et 
---	cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_intentions AS
-SELECT addresses.address ||', '|| addresses.postcode ||', '|| visits.date AS visit_id_expanded,
-	intentions.visit_id,
-	electors.name AS elector_id_expanded,
-	intentions.elector_id,
-	options.id AS option_id_expanded,
-	intentions.option_id,
-	intentions.locality,
-	intentions.id
-FROM visits, intentions, addresses, electors, options
-WHERE intentions.visit_id = visits.id
-	AND intentions.elector_id = electors.id
-	AND intentions.option_id = options.id
-;
-GRANT SELECT ON lv_intentions TO admin,
-	analysts,
-	canvassers ;
-
-------------------------------------------------------------------------
---	convenience view lv_issues of entity issues for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_issues AS
-SELECT issues.url,
-	issues.current,
-	issues.brief,
-	issues.id
-FROM issues
-;
-GRANT SELECT ON lv_issues TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_options of entity options for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_options AS
-SELECT options.id
-FROM options
-;
-GRANT SELECT ON lv_options TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_roles of entity roles for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_roles AS
-SELECT roles.name,
-	roles.id
-FROM roles
-;
-GRANT SELECT ON lv_roles TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_teams of entity teams for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_teams AS
-SELECT teams.name,
-	districts.name AS district_id_expanded,
-	teams.district_id,
-	teams.latitude,
-	teams.longitude,
-	teams.id
-FROM teams, districts
-WHERE teams.district_id = districts.id
-;
-GRANT SELECT ON lv_teams TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	convenience view lv_visits of entity visits for lists, et cetera 
-------------------------------------------------------------------------
-CREATE VIEW lv_visits AS
-SELECT addresses.address ||', '|| addresses.postcode AS address_id_expanded,
-	visits.address_id,
-	canvassers.username ||', '|| canvassers.fullname ||', '|| addresses.address ||', '|| addresses.postcode ||', '|| canvassers.phone ||', '|| canvassers.email AS canvasser_id_expanded,
-	visits.canvasser_id,
-	visits.date,
-	visits.id
-FROM visits, canvassers, addresses
-WHERE visits.address_id = addresses.id
-	AND visits.canvasser_id = canvassers.id
-;
-GRANT SELECT ON lv_visits TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-
-------------------------------------------------------------------------
---	referential integrity links for primary tables 
-------------------------------------------------------------------------
-
-ALTER TABLE addresses ADD CONSTRAINT ri_addresses_districts_district_id 
-	FOREIGN KEY( district_id ) 
-	REFERENCES districts(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE canvassers ADD CONSTRAINT ri_canvassers_addresses_address_id 
-	FOREIGN KEY( address_id ) 
-	REFERENCES addresses(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE canvassers ADD CONSTRAINT ri_canvassers_authorities_authority_id 
-	FOREIGN KEY( authority_id ) 
-	REFERENCES authorities(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE canvassers ADD CONSTRAINT ri_canvassers_electors_elector_id 
-	FOREIGN KEY( elector_id ) 
-	REFERENCES electors(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE dwellings ADD CONSTRAINT ri_dwellings_addresses_address_id 
-	FOREIGN KEY( address_id ) 
-	REFERENCES addresses(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE electors ADD CONSTRAINT ri_electors_dwellings_dwelling_id 
-	FOREIGN KEY( dwelling_id ) 
-	REFERENCES dwellings(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE electors ADD CONSTRAINT ri_electors_genders_gender 
-	FOREIGN KEY( gender ) 
-	REFERENCES genders(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followupactions ADD CONSTRAINT ri_followupactions_canvassers_actor 
-	FOREIGN KEY( actor ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followupactions ADD CONSTRAINT ri_followupactions_followuprequests_request_id 
-	FOREIGN KEY( request_id ) 
-	REFERENCES followuprequests(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followuprequests ADD CONSTRAINT ri_followuprequests_electors_elector_id 
-	FOREIGN KEY( elector_id ) 
-	REFERENCES electors(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followuprequests ADD CONSTRAINT ri_followuprequests_issues_issue_id 
-	FOREIGN KEY( issue_id ) 
-	REFERENCES issues(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followuprequests ADD CONSTRAINT ri_followuprequests_followupmethods_method_id 
-	FOREIGN KEY( method_id ) 
-	REFERENCES followupmethods(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE followuprequests ADD CONSTRAINT ri_followuprequests_visits_visit_id 
-	FOREIGN KEY( visit_id ) 
-	REFERENCES visits(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE intentions ADD CONSTRAINT ri_intentions_electors_elector_id 
-	FOREIGN KEY( elector_id ) 
-	REFERENCES electors(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE intentions ADD CONSTRAINT ri_intentions_options_option_id 
-	FOREIGN KEY( option_id ) 
-	REFERENCES options(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE intentions ADD CONSTRAINT ri_intentions_visits_visit_id 
-	FOREIGN KEY( visit_id ) 
-	REFERENCES visits(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE teams ADD CONSTRAINT ri_teams_districts_district_id 
-	FOREIGN KEY( district_id ) 
-	REFERENCES districts(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE visits ADD CONSTRAINT ri_visits_addresses_address_id 
-	FOREIGN KEY( address_id ) 
-	REFERENCES addresses(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE visits ADD CONSTRAINT ri_visits_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining canvassers with issues 
-------------------------------------------------------------------------
-CREATE TABLE ln_expertise_canvassers_issues
-(
-	 canvasser_id INTEGER,
-	 issue_id VARCHAR(32)
-);
-GRANT SELECT ON ln_expertise_canvassers_issues TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_expertise_canvassers_issues TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT UPDATE ON ln_expertise_canvassers_issues TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT DELETE ON ln_expertise_canvassers_issues TO admin ;
-
-ALTER TABLE ln_expertise_canvassers_issues ADD CONSTRAINT ri_ln_expertise_canvassers_issues_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_expertise_canvassers_issues ADD CONSTRAINT ri_ln_expertise_canvassers_issues_issues_issue_id 
-	FOREIGN KEY( issue_id ) 
-	REFERENCES issues(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining canvassers with roles 
-------------------------------------------------------------------------
-CREATE TABLE ln_roles_canvassers_roles
-(
-	 canvasser_id INTEGER,
-	 role_id INTEGER
-);
-GRANT SELECT ON ln_roles_canvassers_roles TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_roles_canvassers_roles TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT UPDATE ON ln_roles_canvassers_roles TO admin,
-	canvassers,
-	teamorganisers ;
-GRANT DELETE ON ln_roles_canvassers_roles TO admin ;
-
-ALTER TABLE ln_roles_canvassers_roles ADD CONSTRAINT ri_ln_roles_canvassers_roles_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_roles_canvassers_roles ADD CONSTRAINT ri_ln_roles_canvassers_roles_roles_role_id 
-	FOREIGN KEY( role_id ) 
-	REFERENCES roles(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining events with teams 
-------------------------------------------------------------------------
-CREATE TABLE ln_teams_events_teams
-(
-	 event_id INTEGER,
-	 team_id INTEGER
-);
-GRANT SELECT ON ln_teams_events_teams TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_teams_events_teams TO admin,
-	teamorganisers ;
-GRANT UPDATE ON ln_teams_events_teams TO admin,
-	teamorganisers ;
-GRANT DELETE ON ln_teams_events_teams TO admin ;
-
-ALTER TABLE ln_teams_events_teams ADD CONSTRAINT ri_ln_teams_events_teams_events_event_id 
-	FOREIGN KEY( event_id ) 
-	REFERENCES events(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_teams_events_teams ADD CONSTRAINT ri_ln_teams_events_teams_teams_team_id 
-	FOREIGN KEY( team_id ) 
-	REFERENCES teams(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining issues with canvassers 
-------------------------------------------------------------------------
-CREATE TABLE ln_experts_issues_canvassers
-(
-	 issue_id VARCHAR(32),
-	 canvasser_id INTEGER
-);
-GRANT SELECT ON ln_experts_issues_canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_experts_issues_canvassers TO admin,
-	issueeditors ;
-GRANT UPDATE ON ln_experts_issues_canvassers TO admin,
-	issueeditors ;
-GRANT DELETE ON ln_experts_issues_canvassers TO admin ;
-
-ALTER TABLE ln_experts_issues_canvassers ADD CONSTRAINT ri_ln_experts_issues_canvassers_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_experts_issues_canvassers ADD CONSTRAINT ri_ln_experts_issues_canvassers_issues_issue_id 
-	FOREIGN KEY( issue_id ) 
-	REFERENCES issues(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining roles with canvassers 
-------------------------------------------------------------------------
-CREATE TABLE ln_members_roles_canvassers
-(
-	 role_id INTEGER,
-	 canvasser_id INTEGER
-);
-GRANT SELECT ON ln_members_roles_canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_members_roles_canvassers TO admin ;
-GRANT UPDATE ON ln_members_roles_canvassers TO admin ;
-GRANT DELETE ON ln_members_roles_canvassers TO admin ;
-
-ALTER TABLE ln_members_roles_canvassers ADD CONSTRAINT ri_ln_members_roles_canvassers_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_members_roles_canvassers ADD CONSTRAINT ri_ln_members_roles_canvassers_roles_role_id 
-	FOREIGN KEY( role_id ) 
-	REFERENCES roles(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining teams with canvassers 
-------------------------------------------------------------------------
-CREATE TABLE ln_members_teams_canvassers
-(
-	 team_id INTEGER,
-	 canvasser_id INTEGER
-);
-GRANT SELECT ON ln_members_teams_canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_members_teams_canvassers TO admin,
-	teamorganisers ;
-GRANT UPDATE ON ln_members_teams_canvassers TO admin,
-	teamorganisers ;
-GRANT DELETE ON ln_members_teams_canvassers TO admin ;
-
-ALTER TABLE ln_members_teams_canvassers ADD CONSTRAINT ri_ln_members_teams_canvassers_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_members_teams_canvassers ADD CONSTRAINT ri_ln_members_teams_canvassers_teams_team_id 
-	FOREIGN KEY( team_id ) 
-	REFERENCES teams(id) 
-	ON DELETE NO ACTION ;
-
-------------------------------------------------------------------------
---	link table joining teams with canvassers 
-------------------------------------------------------------------------
-CREATE TABLE ln_organisers_teams_canvassers
-(
-	 team_id INTEGER,
-	 canvasser_id INTEGER
-);
-GRANT SELECT ON ln_organisers_teams_canvassers TO admin,
-	analysts,
-	canvassers,
-	issueeditors,
-	issueexperts,
-	teamorganisers ;
-GRANT INSERT ON ln_organisers_teams_canvassers TO admin,
-	teamorganisers ;
-GRANT UPDATE ON ln_organisers_teams_canvassers TO admin,
-	teamorganisers ;
-GRANT DELETE ON ln_organisers_teams_canvassers TO admin ;
-
-ALTER TABLE ln_organisers_teams_canvassers ADD CONSTRAINT ri_ln_organisers_teams_canvassers_canvassers_canvasser_id 
-	FOREIGN KEY( canvasser_id ) 
-	REFERENCES canvassers(id) 
-	ON DELETE NO ACTION ;
-
-ALTER TABLE ln_organisers_teams_canvassers ADD CONSTRAINT ri_ln_organisers_teams_canvassers_teams_team_id 
-	FOREIGN KEY( team_id ) 
-	REFERENCES teams(id) 
-	ON DELETE NO ACTION ;
\ No newline at end of file
diff --git a/src/clj/youyesyet/routes/rest.clj b/src/clj/youyesyet/routes/rest.clj
index 6463827..0de54d7 100644
--- a/src/clj/youyesyet/routes/rest.clj
+++ b/src/clj/youyesyet/routes/rest.clj
@@ -3,9 +3,12 @@
   (:require [adl-support.core :refer [massage-params do-or-log-error]]
             [clojure.core.memoize :as memo]
             [clojure.java.io :as io]
+            [clojure.string :as s]
             [clojure.tools.logging :as log]
             [clojure.walk :refer [keywordize-keys]]
             [compojure.core :refer [defroutes GET POST]]
+            [java-time :as jt]
+            [mount.core :as mount]
             [noir.response :as nresponse]
             [noir.util.route :as route]
             [ring.util.http-response :as response]
@@ -104,44 +107,99 @@
         (:address_id params)
         (:address_id last-visit))
       (:id last-visit)
-      (db/create-visit! db/*db* params))))
+      (db/create-visit!
+        db/*db*
+        (assoc
+          params
+          :canvasser_id (-> request :session :user :id)
+          :date (jt/to-sql-timestamp (jt/local-date-time)))))))
 
 
-;; http://localhost:3000/rest/create-intention?address_id=18&elector-id=62&elector_id=62&intention=Yes&locality=5482391
+;; (current-visit-id {:session {:user {:email "simon@journeyman.cc",
+;;                                               :phone "07768 130255",
+;;                                               :roles #{"analysts" "canvassers" "admin" "teamorganisers" "issueexperts" "issueeditors"},
+;;                                               :username "simon_brooke",
+;;                                               :fullname "Simon Brooke",
+;;                                               :bio "Sinister pagan",
+;;                                               :elector_id 2, :id 4, :address_id 2,
+;;                                               :authority_id "GitHub",
+;;                                               :authorised true}}
+;;                              :params {:address_id 79, :elector_id 238, :locality 5494393, :option_id "Yes"}})
+;; (current-visit-id {:session {:user {:email "simon@journeyman.cc",
+;;                                               :phone "07768 130255",
+;;                                               :roles #{"analysts" "canvassers" "admin" "teamorganisers" "issueexperts" "issueeditors"},
+;;                                               :username "simon_brooke",
+;;                                               :fullname "Simon Brooke",
+;;                                               :bio "Sinister pagan",
+;;                                               :elector_id 2, :id 4, :address_id 2,
+;;                                               :authority_id "GitHub",
+;;                                               :authorised true}}
+;;                              :params {:address_id 80, :elector_id 239, :locality 5494393, :option_id "Yes"}})
+
+
+(defmacro do-or-return-reason
+  "Clojure stacktraces are unreadable. We have to do better; evaluate
+  this `form` in a try-catch block; return a map. If the evaluation
+  succeeds, the map will have a key `:result` whose value is the result;
+  otherwise it will have a key `:error` which will be bound to the most
+  sensible error message we can construct."
+  ;; TODO: candidate for moving to adl-support.core
+  [form]
+  `(try
+     {:result ~form}
+     (catch Exception any#
+       (clojure.tools.logging/error
+         (str (.getName (.getClass any#))
+              ": "
+              (.getMessage any#)
+              (with-out-str
+                (-> any# .printStackTrace))))
+       {:error
+        s/join "\n\tcaused by: "
+        (reverse
+          (loop [ex# any# result# ()]
+            (if-not (nil? ex#)
+              (recur
+                (.getCause ex#)
+                (str (.getName (.getClass ex#)) ": " (.getMessage ex#)))
+              result#)))})))
+
 
 (defn create-intention-and-visit!
   "Doing visit creation logic server side; request params are expected to
-  include an `option`, an `elector_id` and an `address_id`, or an `option` and
+  include an `option_id`, an `elector_id` and an `address_id`, or an `option` and
   a `location`. If no `address_id` is provided, we simply create an
-  `intention` record from the `option` and the `locality`; if a `address_id`
+  `intention` record from the `option_id` and the `locality`; if an `address_id`
   is provided, we need to check whether the last `visit` by the current `user`
   was to the same address, if so use that as the `visit_id`, if not create
   a new `visit` record."
   [request]
-  (let [params (:params request)]
+  (let [params (massage-params request)]
     (log/debug "Creating intention with params: " params)
     (if (-> request :session :user)
       (if
         (and
-         (or (:locality params)
-             (and (:elector-id params)
-                  (:address_id params)))
-         (:intention params))
-        (do-or-log-error
-         {:status 201
-          :body (with-out-str
-                  (print
-                   (hash-map
-                    :id
-                    (db/create-intention!
-                     db/*db*
-                     (assoc
-                       params :visit_id (current-visit-id request))
-                     (db/create-intention! db/*db* params)))))}
-         :error-return {:status 500
-                        :body "Failed to create intention record"})
+          (or (:locality params)
+              (and (:elector_id params)
+                   (:address_id params)))
+          (:option_id params))
+        (let [r (do-or-return-reason
+                  (db/create-intention!
+                    db/*db*
+                    (assoc
+                      params :visit_id (current-visit-id request))))]
+          (if
+            (:result r)
+            {:status 201
+             :body (with-out-str
+                     (print
+                       (hash-map
+                         :id (:id (:result r))
+                         )))}
+            {:status 500
+             :body (:error r)}))
         {:status 400
-         :body "create-intention requires params: `intention` and either `locality` or both `address_id` and `elector_id`."})
+         :body "create-intention requires params: `option_id` and either `locality` or both `address_id` and `elector_id`."})
       {:status 403
        :body "You must be logged in to do that"})))
 
diff --git a/src/cljs/youyesyet/canvasser_app/handlers.cljs b/src/cljs/youyesyet/canvasser_app/handlers.cljs
index 9f4f8d0..bfa2d4c 100644
--- a/src/cljs/youyesyet/canvasser_app/handlers.cljs
+++ b/src/cljs/youyesyet/canvasser_app/handlers.cljs
@@ -322,12 +322,11 @@
           (assoc
             (add-to-outqueue
               (clear-messages db)
-              (assoc
-                args
-                :address_id (-> db :address :id)
-                :locality (-> db :address :locality)
-                :elector_id (-> db :elector :id)
-                :action :create-intention))
+              {:address_id (-> db :address :id)
+               :locality (-> db :address :locality)
+               :elector_id (-> db :elector :id)
+               :option_id (:intention args)
+               :action :create-intention})
             :elector (assoc (:elector db) :intention intention)
             :page :elector))))))
 
diff --git a/youyesyet.adl.xml b/youyesyet.adl.xml
index d828eb4..e47f78a 100644
--- a/youyesyet.adl.xml
+++ b/youyesyet.adl.xml
@@ -326,7 +326,7 @@ version="0.1.1">
       <prompt prompt="Canvasser" locale="en_GB.UTF-8"/>
     </property>
     <property required="true" type="timestamp" name="date"
-    column="date" default="now()" distinct="user">
+    column="date" default="CURRENT_TIMESTAMP" distinct="user">
       <prompt prompt="Date" locale="en_GB.UTF-8"/>
     </property>
     <permission group="canvassers" permission="noedit">
@@ -704,7 +704,7 @@ version="0.1.1">
     column="method_id" entity="followupmethods" farkey="id">
       <prompt prompt="method_id" locale="en_GB.UTF-8"/>
     </property>
-    <property required="true" type="string" name="method-detail">
+    <property required="true" type="string" name="method-detail" size="128">
       <documentation>
         Phone number or email address for followup.
       </documentation>
@@ -983,7 +983,7 @@ version="0.1.1">
     column="actor" entity="canvassers" farkey="id">
       <prompt prompt="actor" locale="en_GB.UTF-8"/>
     </property>
-    <property required="true" default="now()" type="timestamp"
+    <property default="CURRENT_TIMESTAMP" type="timestamp"
     name="date" column="date" distinct="user">
       <prompt prompt="date" locale="en_GB.UTF-8"/>
     </property>
diff --git a/youyesyet.canonical.adl.xml b/youyesyet.canonical.adl.xml
deleted file mode 100644
index 08e3a63..0000000
--- a/youyesyet.canonical.adl.xml
+++ /dev/null
@@ -1,1108 +0,0 @@
-<!-- DOCTYPE application PUBLIC "-//JOURNEYMAN//DTD ADL 1.4.1//EN"
-"http://www.journeyman.cc/adl/stable/adl/schemas/adl-1.4.1.dtd" --><application xmlns="http://bowyer.journeyman.cc/adl/1.4.1/"
-             xmlns:html="http://www.w3.org/1999/xhtml"
-             xmlns:adl="http://bowyer.journeyman.cc/adl/1.4.1/"
-             name="youyesyet"
-             version="0.1.1"><!--
-    ***************************************************************************
-    *
-    *   Application Description Language Framework
-    *
-    *	THIS FILE IS AUTOMATICALLY GENERATED AND SHOULD NOT
-    *	BE MANUALLY EDITED.
-    *
-    *   Generated using adl2canonical.xslt 1.10 $
-	  *
-	  ***************************************************************************
-			--><documentation>A web-app intended to be used by canvassers
-  campaigning for a 'Yes' vote in the second independence
-  referendum. The web-app will be delivered to canvassers out
-  knocking doors primarily through an HTML5/React single-page app
-  designed to work on a mobile phone; it's possible that someone
-  else may do an Android of iPhone native app to address the same
-  back end but at present I have no plans for this. There must also
-  be an administrative interface through which privileged users can
-  set the system up and authorise canvassers, and a 'followup'
-  interface through which issue-expert specialist canvassers can
-  address particular electors' queries.</documentation>
-   <typedef name="postcode" type="string"
-            pattern="^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([AZa-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z]))))[0-9][A-Za-z]{2})$"
-            size="16">
-      <documentation>See
-    https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/488478/Bulk_Data_Transfer_-_additional_validation_valid_from_12_November_2015.pdf,
-    section 3</documentation>
-      <help locale="en_GB.UTF-8">A valid postcode.</help>
-  </typedef>
-   <group name="public">
-      <documentation>All users</documentation>
-  </group>
-   <group name="canvassers" parent="public">
-      <documentation>All users of the canvasser app Able to read and
-    add canvassing data in a limited radius around their current
-    position.</documentation>
-  </group>
-   <group name="teamorganisers" parent="canvassers">
-      <documentation>Organisers of canvassing teams Able to see and
-    modify data on the canvassers in the team(s) they organise;
-    able to add canvassers to their team; able to update canvassers
-    in their team, including resetting passwords and locking
-    accounts; able to see canvass data over the whole area in which
-    their team operates.</documentation>
-  </group>
-   <group name="issueexperts" parent="public">
-      <documentation>People expert on particular issues. Able to read
-    followup requests, and the electors to which they relate; able
-    to access (read/write) the issues wiki; able to write followuop
-    action records.</documentation>
-  </group>
-   <group name="analysts" parent="public">
-      <documentation>Users entitled to see an overview of the
-    canvassing data collected. Able to read canvassing data over
-    the whole map, including historical data.</documentation>
-  </group>
-   <group name="issueeditors" parent="analysts">
-      <documentation>Users responsible for determining what issues
-    should be current at any time. Able to set current issues; able
-    to add issues.</documentation>
-  </group>
-   <group name="admin" parent="public">
-      <documentation>Able to read and update canvasser records, team
-    membership records, team organisership records, issue expertise
-    records; able to add and update reference data
-    generally.</documentation>
-  </group>
-   <!--
-    entity electors already has a key - not generating one
-    --><entity table="electors" name="electors" magnitude="6" volatility="5">
-      <documentation>All electors known to the system; electors are
-    people believed to be entitled to vote in the current
-    campaign.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" immutable="true"
-                   distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property size="64" required="true" type="string" name="name" column="name"
-                distinct="user">
-         <prompt prompt="Name" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="dwelling_id" column="dwelling_id"
-                entity="dwellings"
-                farkey="id">
-         <prompt prompt="Home" locale="en_GB.UTF-8"/>
-      </property>
-      <property size="16" type="string" name="phone" column="phone">
-         <prompt prompt="Phone" locale="en_GB.UTF-8"/>
-      </property>
-      <property size="128" type="string" name="email" column="email">
-         <prompt prompt="Email" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="gender" type="entity" column="gender" entity="genders" farkey="id"
-                default="Unknown">
-         <prompt prompt="Gender" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="signature" type="text">
-         <documentation>The signature of this elector, captured as SVG text,
-      as evidence they have consented to us holding data on them.
-      Null if they have not.</documentation>
-      </property>
-      <list properties="listed" name="Electors">
-         <field property="name">
-            <prompt prompt="Name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="dwelling_id">
-            <prompt prompt="Home" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Elector">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="name">
-            <prompt prompt="Name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="dwelling_id">
-            <prompt prompt="Home" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="phone">
-            <prompt prompt="Phone" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="email">
-            <prompt prompt="eMail" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="gender">
-            <prompt prompt="Gender" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity genders already has a key - not generating one
-    --><entity table="genders" name="genders" magnitude="1" volatility="6">
-      <documentation>All genders which may be assigned to
-    electors.</documentation>
-      <key>
-         <property name="id" type="string" size="32" distinct="all">
-            <prompt prompt="Gender" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <list properties="listed" name="Genders">
-         <field property="id">
-            <prompt prompt="Gender" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Gender">
-         <field property="id">
-            <prompt prompt="Gender" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity dwellings already has a key - not generating one
-    --><entity table="dwellings" name="dwellings" magnitude="6" volatility="6">
-      <documentation>All dwellings within addresses in the system; a
-    dwelling is a house, flat or appartment in which electors live.
-    Every address should have at least one dwelling; essentially,
-    an address maps onto a street door and dwellings map onto
-    what's behind that door. So a tenement or a block of flats
-    would be one address with many dwellings.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" immutable="true"
-                   distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="entity" name="address_id" column="address_id"
-                entity="addresses"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="Building Address" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="false" type="string" size="32" name="sub-address" distinct="user">
-         <documentation>
-        The part of the address which identifies the flat or
-        apartment within the building, if in a multiple occupancy
-        building.
-      </documentation>
-      </property>
-      <list properties="listed" name="Dwellings">
-         <field property="address_id">
-            <prompt prompt="Building Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="sub-address">
-            <prompt prompt="Sub address" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Dwelling">
-         <field property="address_id">
-            <prompt prompt="Building Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="sub-address">
-            <prompt prompt="Sub address (e.g. flat number)" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity addresses already has a key - not generating one
-    --><entity table="addresses" name="addresses" magnitude="6" volatility="6">
-      <documentation>Addresses of all buildings which contain
-    dwellings.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" immutable="true"
-                   distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="address" column="address" size="256"
-                distinct="user">
-         <prompt prompt="Address" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="defined" typedef="postcode" name="postcode" column="postcode" size="16"
-                distinct="user">
-         <prompt prompt="Postcode" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="string" name="phone" column="phone" size="16">
-         <prompt prompt="Phone" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="entity" name="district_id" column="district_id" entity="districts"
-                farkey="id">
-         <prompt prompt="District" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="real" name="latitude" column="latitude">
-         <prompt prompt="Latitude" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="real" name="longitude" column="longitude">
-         <prompt prompt="Longitude" locale="en_GB.UTF-8"/>
-      </property>
-      <!-- property name="dwellings" type="link" entity="dwelling"/ -->
-    <property type="integer" name="locality" column="locality">
-         <documentation>Locality indexing; see issue #44. Note that
-      this property should be generated automatically from the
-      latitude and longitude: (+ (* 10000 ;; left-shift the
-      latitude component four digits (integer (* latitude 1000)))
-      (- ;; invert the sign of the longitude component, since ;;
-      we're interested in localities West of Greenwich. (integer (*
-      longitude 1000)))) We'll use a trigger to insert this. I
-      don't think it will ever appear in the user interface; it's
-      an implementation detail, not of interest to
-      users.</documentation>
-      </property>
-      <list properties="listed" name="Addresses">
-         <field property="address">
-            <prompt prompt="Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="postcode">
-            <prompt prompt="Postcode" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="district_id">
-            <prompt prompt="District" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Address">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="address">
-            <prompt prompt="Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="postcode">
-            <prompt prompt="Postcode" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="phone">
-            <prompt prompt="Phone" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="district_id">
-            <prompt prompt="District" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="latitude">
-            <prompt prompt="Latitude" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="longitude">
-            <prompt prompt="Longitude" locale="en_GB.UTF-8"/>
-         </field>
-         <auxlist property="dwellings">
-            <field name="sub-address"/>
-         </auxlist>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity visits already has a key - not generating one
-    --><entity table="visits" name="visits" magnitude="7" volatility="2">
-      <documentation>All visits made by canvassers to dwellings in
-    which opinions were recorded.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <!-- TODO: should visit be keyed against dwelling rather than address? -->
-    <property required="true" type="entity" name="address_id" column="address_id"
-                entity="addresses"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="Address" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="canvasser_id" column="canvasser_id"
-                entity="canvassers"
-                farkey="id">
-         <prompt prompt="Canvasser" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="timestamp" name="date" column="date" default="now()"
-                distinct="user">
-         <prompt prompt="Date" locale="en_GB.UTF-8"/>
-      </property>
-      <permission group="canvassers" permission="noedit">
-         <documentation>But only in their immediate
-      area.</documentation>
-      </permission>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="noedit"/>
-      <list properties="listed" name="Visits">
-         <field property="address_id">
-            <prompt prompt="Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="canvasser_id">
-            <prompt prompt="Canvasser" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="date">
-            <prompt prompt="Date" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Visit">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="address_id">
-            <prompt prompt="Address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="canvasser_id">
-            <prompt prompt="Canvasser" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="date">
-            <prompt prompt="Date" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission permission="none" group="public"/>
-      <permission permission="noedit" group="canvassers"/>
-      <permission permission="noedit" group="teamorganisers"/>
-      <permission permission="read" group="issueexperts"/>
-      <permission permission="read" group="analysts"/>
-      <permission permission="read" group="issueeditors"/>
-      <permission permission="all" group="admin"/>
-  </entity>
-   <!--
-    entity authorities already has a key - not generating one
-    --><entity table="authorities" name="authorities" magnitude="2" volatility="7">
-      <documentation>Authorities which may authenticate canvassers to
-    the system.</documentation>
-      <key>
-         <property required="true" type="string" name="id" column="id" size="32" distinct="all"
-                   immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property name="request-token-uri" type="string" size="256" required="true"/>
-      <property name="access-token-uri" type="string" size="256" required="true"/>
-      <property name="authorize-uri" type="string" size="256" required="true"/>
-      <property name="consumer-key" type="string" size="32" required="true" default="youyesyet"/>
-      <property name="consumer-secret" type="string" size="256" required="true"/>
-      <list name="Authorities" properties="listed">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Authority">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="request-token-uri"/>
-         <field property="access-token-uri"/>
-         <field property="authorize-uri"/>
-         <field property="consumer-key"/>
-         <field property="consumer-secret"/>
-         <permission group="canvassers" permission="none"/>
-         <permission group="teamorganisers" permission="none"/>
-         <permission group="issueexperts" permission="none"/>
-         <permission group="analysts" permission="none"/>
-         <permission group="issueeditors" permission="none"/>
-         <permission group="admin" permission="all"/>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity issues already has a key - not generating one
-    --><entity table="issues" name="issues" magnitude="1" volatility="3">
-      <documentation>Issues believed to be of interest to electors,
-    about which they may have questions.</documentation>
-      <key>
-         <property required="true" type="string" name="id" column="id" size="32" immutable="true"
-                   distinct="all">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property type="string" name="url" column="url" size="256">
-         <prompt prompt="url" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="current" type="boolean" default="true">
-         <prompt prompt="Is current?" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="text" name="brief">
-         <prompt prompt="Brief response to issue" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" name="experts" entity="canvassers"/>
-      <list properties="listed" name="Issues">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="url">
-            <prompt prompt="url" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="current">
-            <prompt prompt="Is current?" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="brief">
-            <prompt prompt="Brief response to issue" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Issue">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="url">
-            <prompt prompt="url" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="current">
-            <prompt prompt="Is current?" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="brief">
-            <prompt prompt="Brief response to issue" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="edit"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity intentions already has a key - not generating one
-    --><entity table="intentions" name="intentions" magnitude="6" volatility="2">
-      <documentation>Intentions of electors to vote for options
-    elicited in visits.</documentation>
-      <key>
-         <property type="integer" distinct="system" required="true" immutable="true" name="id">
-            <generator action="native"/>
-         </property>
-      </key>
-      <property required="true" type="entity" entity="visits" farkey="id" name="visit_id"
-                column="visit_id">
-         <prompt prompt="visit_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="entity" entity="electors" farkey="id" name="elector_id"
-                column="elector_id">
-         <prompt prompt="elector_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" entity="options" farkey="id" name="option_id"
-                column="option_id">
-         <prompt prompt="option_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="locality" type="integer" required="true">
-         <documentation>The locality at which the intention was
-      recorded; used where an elector does not consent to have
-      polling intention stored against them. This is a locality as
-      described in</documentation>
-      </property>
-      <permission permission="none" group="public"/>
-      <permission group="canvassers" permission="noedit"/>
-      <permission group="teamorganisers" permission="none"/>
-      <permission group="issueexperts" permission="none"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="none"/>
-      <permission group="admin" permission="noedit"/>
-      <list properties="listed" name="Intentions">
-         <field property="visit_id">
-            <prompt prompt="visit" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="elector_id">
-            <prompt prompt="elector" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="option_id">
-            <prompt prompt="option" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="locality">
-            <documentation>The locality at which the intention was
-        recorded; used where an elector does not consent to have
-        polling intention stored against them. This is a locality
-        as described in</documentation>
-         </field>
-      </list>
-      <form properties="listed" name="Intention">
-         <field property="visit_id">
-            <prompt prompt="visit_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="elector_id">
-            <prompt prompt="elector_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="option_id">
-            <prompt prompt="option_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="locality">
-            <documentation>The locality at which the intention was
-        recorded; used where an elector does not consent to have
-        polling intention stored against them. This is a locality
-        as described in</documentation>
-         </field>
-      </form>
-  </entity>
-   <!--
-    entity canvassers already has a key - not generating one
-    --><entity table="canvassers" name="canvassers" magnitude="5" volatility="4">
-      <documentation>Primary users of the system: those actually
-    interviewing electors.</documentation>
-      <key>
-         <property type="integer" name="id" column="id" distinct="system" immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="username" column="username" size="32"
-                distinct="all">
-         <prompt prompt="username" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="string" name="fullname" column="fullname" size="64"
-                distinct="user">
-         <prompt prompt="fullname" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="avatar" type="image">
-         <documentation>An image of the canvasser, so that other members of their
-        team can recognise them.</documentation>
-         <prompt prompt="Avatar" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="bio" type="text">
-         <documentation>Information the canvasser supplies about themselves; an introduction.</documentation>
-         <prompt prompt="Bio" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="entity" name="elector_id" column="elector_id" entity="electors"
-                farkey="id">
-         <prompt prompt="Electoral roll entry" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="address_id" column="address_id"
-                entity="addresses"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="address" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="string" name="phone" column="phone" size="16" distinct="user">
-         <prompt prompt="phone" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="string" name="email" column="email" size="128" distinct="user">
-         <prompt prompt="email" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="authority_id" entity="authorities"
-                farkey="id">
-         <prompt prompt="authority_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="boolean" name="authorised" column="authorised">
-         <prompt prompt="authorised" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" name="roles" entity="roles" farkey="role_id">
-         <prompt prompt="Roles" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" name="expertise" entity="issues">
-         <documentation>Only relevant to issue experts.</documentation>
-         <prompt prompt="Expertise" locale="en_GB.UTF-8"/>
-      </property>
-      <permission group="canvassers" permission="edit">
-         <documentation>But only their own record</documentation>
-      </permission>
-      <permission group="teamorganisers" permission="edit">
-         <documentation>But only canvassers in their own
-      team.</documentation>
-      </permission>
-      <permission group="admin" permission="all">
-         <documentation>All canvassers</documentation>
-      </permission>
-      <list properties="listed" name="Canvassers">
-         <field property="username">
-            <prompt prompt="username" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="fullname">
-            <prompt prompt="full name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="address_id">
-            <prompt prompt="address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="authorised">
-            <prompt prompt="authorised" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Canvasser">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="username">
-            <prompt prompt="username" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="fullname">
-            <prompt prompt="fullname" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="avatar"/>
-         <field property="bio"/>
-         <field property="elector_id">
-            <prompt prompt="Electoral roll entry" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="address_id">
-            <prompt prompt="address" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="phone">
-            <prompt prompt="phone" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="email">
-            <prompt prompt="email" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="authority_id">
-            <prompt prompt="authority_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="authorised">
-            <prompt prompt="authorised" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="roles">
-            <prompt prompt="Roles" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="edit">
-         <documentation>But should only be able to edit their own
-      record.</documentation>
-      </permission>
-      <permission group="teamorganisers" permission="edit"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity followuprequests already has a key - not generating one
-    --><entity table="followuprequests" name="followuprequests" magnitude="7" volatility="2">
-      <documentation>Requests for a followup with an issue
-    expert</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" distinct="system"
-                   immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="entity" name="elector_id" column="elector_id"
-                entity="electors"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="elector_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="visit_id" column="visit_id" entity="visits"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="visit_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="issue_id" column="issue_id" entity="issues"
-                farkey="id"
-                distinct="user">
-         <prompt prompt="issue_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="method_id" column="method_id"
-                entity="followupmethods"
-                farkey="id">
-         <prompt prompt="method_id" locale="en_GB.UTF-8"/>
-      </property>
-      <list properties="listed" name="Followuprequests">
-         <field property="elector_id">
-            <prompt prompt="elector" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="visit_id">
-            <prompt prompt="visit" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="issue_id">
-            <prompt prompt="issue" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="method_id">
-            <prompt prompt="method" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Followuprequest">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="elector_id">
-            <prompt prompt="elector_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="visit_id">
-            <prompt prompt="visit_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="issue_id">
-            <prompt prompt="issue_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="method_id">
-            <prompt prompt="method_id" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="noedit"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="noedit"/>
-  </entity>
-   <!--
-    entity roles already has a key - not generating one
-    --><entity table="roles" name="roles" magnitude="1" volatility="7">
-      <documentation>A role (essentially, the same as a group, but
-    application layer rather than database layer) of which a user
-    may be a member.</documentation>
-      <key>
-         <property type="integer" name="id" column="id" immutable="true" distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="name" column="name" size="64"
-                distinct="all"
-                immutable="true">
-         <prompt prompt="name" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" entity="canvassers" name="members">
-         <prompt prompt="Members" locale="en_GB.UTF-8"/>
-      </property>
-      <list properties="listed" name="Roles">
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Role">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="members">
-            <prompt prompt="Members" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity teams already has a key - not generating one
-    --><entity table="teams" name="teams" magnitude="4" volatility="4">
-      <key>
-         <property type="integer" name="id" column="id" distinct="system" immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="name" column="name" size="64"
-                distinct="user">
-         <prompt prompt="name" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" entity="districts" farkey="id" name="district_id"
-                column="district_id">
-         <prompt prompt="district_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="real" name="latitude" column="latitude">
-         <prompt prompt="latitude" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" entity="canvassers" name="members">
-         <prompt prompt="Members" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="link" entity="canvassers" name="organisers">
-         <prompt prompt="Organisers" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="real" name="longitude" column="longitude">
-         <prompt prompt="longitude" locale="en_GB.UTF-8"/>
-      </property>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="edit">
-         <documentation>But only their own group(s)</documentation>
-      </permission>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all">
-         <documentation>All groups</documentation>
-      </permission>
-      <list properties="listed" name="Teams">
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="district_id">
-            <prompt prompt="district_id" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Team">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="district_id">
-            <prompt prompt="district_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="latitude">
-            <prompt prompt="latitude" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="members">
-            <prompt prompt="Members" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="organisers">
-            <prompt prompt="Organisers" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="longitude">
-            <prompt prompt="longitude" locale="en_GB.UTF-8"/>
-         </field>
-         <auxlist property="organisers">
-            <prompt prompt="Organisers" locale="en_GB.UTF-8"/>
-            <field property="id">
-        </field>
-            <field property="fullname">
-               <prompt prompt="name" locale="en_GB.UTF-8"/>
-            </field>
-            <field property="email">
-               <prompt prompt="email" locale="en_GB.UTF-8"/>
-            </field>
-            <field property="phone">
-               <prompt prompt="phone" locale="en_GB.UTF-8"/>
-            </field>
-         </auxlist>
-         <auxlist property="members">
-            <prompt prompt="Members" locale="en_GB.UTF-8"/>
-            <field property="id">
-        </field>
-            <field property="fullname">
-               <prompt prompt="name" locale="en_GB.UTF-8"/>
-            </field>
-            <field property="email">
-               <prompt prompt="email" locale="en_GB.UTF-8"/>
-            </field>
-            <field property="phone">
-               <prompt prompt="phone" locale="en_GB.UTF-8"/>
-            </field>
-         </auxlist>
-         <auxlist property="events">
-      </auxlist>
-      </form>
-      <permission permission="none" group="public"/>
-      <permission permission="read" group="canvassers"/>
-      <permission permission="edit" group="teamorganisers"/>
-      <permission permission="read" group="issueexperts"/>
-      <permission permission="read" group="analysts"/>
-      <permission permission="read" group="issueeditors"/>
-      <permission permission="all" group="admin"/>
-  </entity>
-   <!--
-    entity events already has a key - not generating one
-    --><entity volatility="0" name="events" table="events" magnitude="5">
-      <documentation>
-      An event to which a team or teams are invited. Typically created by the team organiser(s).
-      May be a training event, a social event or a canvassing session.
-    </documentation>
-      <key>
-         <property type="integer" distinct="system" required="true" name="id" immutable="true">
-            <generator action="native"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="name" column="name" size="64"
-                distinct="user">
-         <prompt prompt="name" locale="en_GB.UTF-8"/>
-      </property>
-      <property name="teams" type="link" entity="teams"/>
-      <property name="date" type="date" distinct="user"/>
-      <property name="time" type="time" distinct="user"/>
-      <property name="decription" type="text"/>
-      <property name="cancelled" type="boolean" default="false"/>
-      <permission permission="none" group="public"/>
-      <permission permission="read" group="canvassers"/>
-      <permission permission="edit" group="teamorganisers"/>
-      <permission permission="read" group="issueexperts"/>
-      <permission permission="read" group="analysts"/>
-      <permission permission="read" group="issueeditors"/>
-      <permission permission="all" group="admin"/>
-      <form properties="listed" name="Events">
-         <field property="id">
-            <generator action="native"/>
-         </field>
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="teams"/>
-         <field property="date"/>
-         <field property="time"/>
-         <field property="decription"/>
-         <field property="cancelled"/>
-      </form>
-      <list properties="listed" name="Events">
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="date"/>
-         <field property="time"/>
-         <field property="cancelled"/>
-      </list>
-  </entity>
-   <!--
-    entity districts already has a key - not generating one
-    --><entity table="districts" name="districts" magnitude="4" volatility="7">
-      <documentation>Electoral districts: TODO: Shape (polygon)
-    information will need to be added, for use in
-    maps.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" immutable="true"
-                   distinct="system">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="string" name="name" column="name" size="64"
-                distinct="user">
-         <prompt prompt="name" locale="en_GB.UTF-8"/>
-      </property>
-      <permission group="public" permission="read"/>
-      <permission group="admin" permission="all"/>
-      <list properties="listed" name="Districts">
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="District">
-         <field property="name">
-            <prompt prompt="name" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity followupactions already has a key - not generating one
-    --><entity table="followupactions" name="followupactions" magnitude="7" volatility="0">
-      <documentation>Actions taken on followup
-    requests.</documentation>
-      <key>
-         <property required="true" type="integer" name="id" column="id" distinct="system"
-                   immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <property required="true" type="entity" name="request_id" column="request_id"
-                entity="followuprequests"
-                farkey="id">
-         <prompt prompt="request_id" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" type="entity" name="actor" column="actor" entity="canvassers"
-                farkey="id">
-         <prompt prompt="actor" locale="en_GB.UTF-8"/>
-      </property>
-      <property required="true" default="now()" type="timestamp" name="date" column="date"
-                distinct="user">
-         <prompt prompt="date" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="text" name="notes" column="notes" distinct="user">
-         <prompt prompt="notes" locale="en_GB.UTF-8"/>
-      </property>
-      <property type="boolean" name="closed" column="closed" default="false">
-         <prompt prompt="closed" locale="en_GB.UTF-8"/>
-      </property>
-      <list properties="listed" name="Followupactions">
-         <field property="request_id">
-            <prompt prompt="Request" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="actor">
-            <prompt prompt="actor" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="date">
-            <prompt prompt="date" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="closed">
-            <prompt prompt="closed" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Followupaction">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="request_id">
-            <prompt prompt="request_id" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="actor">
-            <prompt prompt="actor" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="date">
-            <prompt prompt="date" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="notes">
-            <prompt prompt="notes" locale="en_GB.UTF-8"/>
-         </field>
-         <field property="closed">
-            <prompt prompt="closed" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="issueexperts" permission="noedit"/>
-      <permission group="canvassers" permission="read">
-         <documentation>But only for electors in their immediate
-      vicinity</documentation>
-      </permission>
-      <permission group="teamorganisers" permission="none"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity options already has a key - not generating one
-    --><entity table="options" name="options" magnitude="1" volatility="7">
-      <documentation>Options in the election or referendum being
-    canvassed on</documentation>
-      <key>
-         <property required="true" type="string" name="id" column="id" size="32" distinct="all"
-                   immutable="true">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <list properties="listed" name="Options">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Option">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-   <!--
-    entity followupmethods already has a key - not generating one
-    --><entity table="followupmethods" name="followupmethods" magnitude="1" volatility="7">
-      <documentation>Methods which may be used to follow up a followup request. Reference data.</documentation>
-      <key>
-         <property required="true" type="string" size="32" name="id" column="id" immutable="true"
-                   distinct="all">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </property>
-      </key>
-      <list properties="listed" name="Followupmethods">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-      </list>
-      <form properties="listed" name="Followupmethod">
-         <field property="id">
-            <prompt prompt="id" locale="en_GB.UTF-8"/>
-         </field>
-      </form>
-      <permission group="canvassers" permission="read"/>
-      <permission group="teamorganisers" permission="read"/>
-      <permission group="issueexperts" permission="read"/>
-      <permission group="analysts" permission="read"/>
-      <permission group="issueeditors" permission="read"/>
-      <permission group="admin" permission="all"/>
-  </entity>
-</application>
\ No newline at end of file