liquid_feedback_core
view update/core-update.v3.0.0-v3.0.1.sql @ 416:db9ccf3c05f4
Added update script to introduce "first_preference_votes"
| author | jbe |
|---|---|
| date | Wed Mar 26 14:45:49 2014 +0100 (2014-03-26) |
| parents | |
| children | bc94ea65757b |
line source
1 BEGIN;
3 CREATE OR REPLACE VIEW "liquid_feedback_version" AS
4 SELECT * FROM (VALUES ('3.0.1', 3, 0, 1))
5 AS "subquery"("string", "major", "minor", "revision");
7 ALTER TABLE "initiative" ADD COLUMN "first_preference_votes" INT4;
9 ALTER TABLE "initiative" DROP CONSTRAINT "non_admitted_initiatives_cant_contain_voting_results";
10 ALTER TABLE "initiative" ADD CONSTRAINT "non_admitted_initiatives_cant_contain_voting_results" CHECK (
11 ( "admitted" NOTNULL AND "admitted" = TRUE ) OR
12 ( "first_preference_votes" ISNULL AND
13 "positive_votes" ISNULL AND "negative_votes" ISNULL AND
14 "direct_majority" ISNULL AND "indirect_majority" ISNULL AND
15 "schulze_rank" ISNULL AND
16 "better_than_status_quo" ISNULL AND "worse_than_status_quo" ISNULL AND
17 "reverse_beat_path" ISNULL AND "multistage_majority" ISNULL AND
18 "eligible" ISNULL AND "winner" ISNULL AND "rank" ISNULL ) );
20 COMMENT ON COLUMN "initiative"."first_preference_votes" IS 'Number of direct and delegating voters who ranked this initiative as their first choice';
21 COMMENT ON COLUMN "initiative"."positive_votes" IS 'Number of direct and delegating voters who ranked this initiative better than the status quo';
22 COMMENT ON COLUMN "initiative"."negative_votes" IS 'Number of direct and delegating voters who ranked this initiative worse than the status quo';
24 -- UPDATE TABLE "vote" SET "grade" = 0 WHERE "grade" ISNULL; -- should not be necessary
25 ALTER TABLE "vote" ALTER COLUMN "grade" SET NOT NULL;
27 ALTER TABLE "vote" ADD COLUMN "first_preference" BOOLEAN;
29 ALTER TABLE "vote" ADD
30 CONSTRAINT "first_preference_flag_only_set_on_positive_grades"
31 CHECK ("grade" > 0 OR "first_preference" ISNULL);
33 COMMENT ON COLUMN "vote"."first_preference" IS 'Value is automatically set after voting is finished. For positive grades, this value is set to true for the highest (i.e. best) grade.';
35 INSERT INTO "temporary_transaction_data" ("key", "value")
36 VALUES ('override_protection_triggers', TRUE::TEXT);
38 UPDATE "vote" SET "first_preference" = "subquery"."first_preference"
39 FROM (
40 SELECT
41 "vote"."initiative_id",
42 "vote"."member_id",
43 CASE WHEN "vote"."grade" > 0 THEN
44 CASE WHEN "vote"."grade" = max("agg"."grade") THEN TRUE ELSE FALSE END
45 ELSE NULL
46 END AS "first_preference"
47 FROM "vote"
48 JOIN "initiative" -- NOTE: due to missing index on issue_id
49 ON "vote"."issue_id" = "initiative"."issue_id"
50 JOIN "vote" AS "agg"
51 ON "initiative"."id" = "agg"."initiative_id"
52 AND "vote"."member_id" = "agg"."member_id"
53 GROUP BY "vote"."initiative_id", "vote"."member_id"
54 ) AS "subquery"
55 WHERE "vote"."initiative_id" = "subquery"."initiative_id"
56 AND "vote"."member_id" = "subquery"."member_id";
58 DELETE FROM "temporary_transaction_data"
59 WHERE "key" = 'override_protection_triggers';
61 UPDATE "initiative"
62 SET "first_preference_votes" = coalesce("subquery"."sum", 0)
63 FROM (
64 SELECT "vote"."initiative_id", sum("direct_voter"."weight")
65 FROM "vote" JOIN "direct_voter"
66 ON "vote"."issue_id" = "direct_voter"."issue_id"
67 AND "vote"."member_id" = "direct_voter"."member_id"
68 WHERE "vote"."first_preference"
69 GROUP BY "vote"."initiative_id"
70 ) AS "subquery"
71 WHERE "initiative"."admitted"
72 AND "initiative"."id" = "subquery"."initiative_id";
74 CREATE OR REPLACE FUNCTION "close_voting"("issue_id_p" "issue"."id"%TYPE)
75 RETURNS VOID
76 LANGUAGE 'plpgsql' VOLATILE AS $$
77 DECLARE
78 "area_id_v" "area"."id"%TYPE;
79 "unit_id_v" "unit"."id"%TYPE;
80 "member_id_v" "member"."id"%TYPE;
81 BEGIN
82 PERFORM "require_transaction_isolation"();
83 SELECT "area_id" INTO "area_id_v" FROM "issue" WHERE "id" = "issue_id_p";
84 SELECT "unit_id" INTO "unit_id_v" FROM "area" WHERE "id" = "area_id_v";
85 -- override protection triggers:
86 INSERT INTO "temporary_transaction_data" ("key", "value")
87 VALUES ('override_protection_triggers', TRUE::TEXT);
88 -- delete timestamp of voting comment:
89 UPDATE "direct_voter" SET "comment_changed" = NULL
90 WHERE "issue_id" = "issue_id_p";
91 -- delete delegating votes (in cases of manual reset of issue state):
92 DELETE FROM "delegating_voter"
93 WHERE "issue_id" = "issue_id_p";
94 -- delete votes from non-privileged voters:
95 DELETE FROM "direct_voter"
96 USING (
97 SELECT
98 "direct_voter"."member_id"
99 FROM "direct_voter"
100 JOIN "member" ON "direct_voter"."member_id" = "member"."id"
101 LEFT JOIN "privilege"
102 ON "privilege"."unit_id" = "unit_id_v"
103 AND "privilege"."member_id" = "direct_voter"."member_id"
104 WHERE "direct_voter"."issue_id" = "issue_id_p" AND (
105 "member"."active" = FALSE OR
106 "privilege"."voting_right" ISNULL OR
107 "privilege"."voting_right" = FALSE
108 )
109 ) AS "subquery"
110 WHERE "direct_voter"."issue_id" = "issue_id_p"
111 AND "direct_voter"."member_id" = "subquery"."member_id";
112 -- consider delegations:
113 UPDATE "direct_voter" SET "weight" = 1
114 WHERE "issue_id" = "issue_id_p";
115 PERFORM "add_vote_delegations"("issue_id_p");
116 -- mark first preferences:
117 UPDATE "vote" SET "first_preference" = "subquery"."first_preference"
118 FROM (
119 SELECT
120 "vote"."initiative_id",
121 "vote"."member_id",
122 CASE WHEN "vote"."grade" > 0 THEN
123 CASE WHEN "vote"."grade" = max("agg"."grade") THEN TRUE ELSE FALSE END
124 ELSE NULL
125 END AS "first_preference"
126 FROM "vote"
127 JOIN "initiative" -- NOTE: due to missing index on issue_id
128 ON "vote"."issue_id" = "initiative"."issue_id"
129 JOIN "vote" AS "agg"
130 ON "initiative"."id" = "agg"."initiative_id"
131 AND "vote"."member_id" = "agg"."member_id"
132 GROUP BY "vote"."initiative_id", "vote"."member_id"
133 ) AS "subquery"
134 WHERE "vote"."issue_id" = "issue_id_p"
135 AND "vote"."initiative_id" = "subquery"."initiative_id"
136 AND "vote"."member_id" = "subquery"."member_id";
137 -- finish overriding protection triggers (avoids garbage):
138 DELETE FROM "temporary_transaction_data"
139 WHERE "key" = 'override_protection_triggers';
140 -- materialize battle_view:
141 -- NOTE: "closed" column of issue must be set at this point
142 DELETE FROM "battle" WHERE "issue_id" = "issue_id_p";
143 INSERT INTO "battle" (
144 "issue_id",
145 "winning_initiative_id", "losing_initiative_id",
146 "count"
147 ) SELECT
148 "issue_id",
149 "winning_initiative_id", "losing_initiative_id",
150 "count"
151 FROM "battle_view" WHERE "issue_id" = "issue_id_p";
152 -- set voter count:
153 UPDATE "issue" SET
154 "voter_count" = (
155 SELECT coalesce(sum("weight"), 0)
156 FROM "direct_voter" WHERE "issue_id" = "issue_id_p"
157 )
158 WHERE "id" = "issue_id_p";
159 -- calculate "first_preference_votes":
160 UPDATE "initiative"
161 SET "first_preference_votes" = coalesce("subquery"."sum", 0)
162 FROM (
163 SELECT "vote"."initiative_id", sum("direct_voter"."weight")
164 FROM "vote" JOIN "direct_voter"
165 ON "vote"."issue_id" = "direct_voter"."issue_id"
166 AND "vote"."member_id" = "direct_voter"."member_id"
167 WHERE "vote"."first_preference"
168 GROUP BY "vote"."initiative_id"
169 ) AS "subquery"
170 WHERE "initiative"."issue_id" = "issue_id_p"
171 AND "initiative"."admitted"
172 AND "initiative"."id" = "subquery"."initiative_id";
173 -- copy "positive_votes" and "negative_votes" from "battle" table:
174 UPDATE "initiative" SET
175 "positive_votes" = "battle_win"."count",
176 "negative_votes" = "battle_lose"."count"
177 FROM "battle" AS "battle_win", "battle" AS "battle_lose"
178 WHERE
179 "battle_win"."issue_id" = "issue_id_p" AND
180 "battle_win"."winning_initiative_id" = "initiative"."id" AND
181 "battle_win"."losing_initiative_id" ISNULL AND
182 "battle_lose"."issue_id" = "issue_id_p" AND
183 "battle_lose"."losing_initiative_id" = "initiative"."id" AND
184 "battle_lose"."winning_initiative_id" ISNULL;
185 END;
186 $$;
188 COMMIT;