liquid_feedback_core
view update/core-update.v2.2.1-v2.2.2.sql @ 398:806561cce3b1
New table "issue_order" for ordering fields to avoid a bottleneck with locking
| author | jbe |
|---|---|
| date | Fri Oct 11 20:07:41 2013 +0200 (2013-10-11) |
| parents | 1c991490f075 |
| children |
line source
1 BEGIN;
3 CREATE OR REPLACE VIEW "liquid_feedback_version" AS
4 SELECT * FROM (VALUES ('2.2.2', 2, 2, 2))
5 AS "subquery"("string", "major", "minor", "revision");
7 CREATE TABLE "internal_session_store" (
8 PRIMARY KEY ("backend_pid", "key"),
9 "backend_pid" INT4,
10 "key" TEXT,
11 "value" TEXT NOT NULL );
13 COMMENT ON TABLE "internal_session_store" IS 'Table to store session variables; shall be emptied before a transaction is committed';
15 COMMENT ON COLUMN "internal_session_store"."backend_pid" IS 'Value returned by function pg_backend_pid()';
17 CREATE OR REPLACE FUNCTION "forbid_changes_on_closed_issue_trigger"()
18 RETURNS TRIGGER
19 LANGUAGE 'plpgsql' VOLATILE AS $$
20 DECLARE
21 "issue_id_v" "issue"."id"%TYPE;
22 "issue_row" "issue"%ROWTYPE;
23 BEGIN
24 IF EXISTS (
25 SELECT NULL FROM "internal_session_store"
26 WHERE "backend_pid" = pg_backend_pid()
27 AND "key" = 'override_protection_triggers'
28 AND "value" = TRUE::TEXT
29 ) THEN
30 RETURN NULL;
31 END IF;
32 IF TG_OP = 'DELETE' THEN
33 "issue_id_v" := OLD."issue_id";
34 ELSE
35 "issue_id_v" := NEW."issue_id";
36 END IF;
37 SELECT INTO "issue_row" * FROM "issue"
38 WHERE "id" = "issue_id_v" FOR SHARE;
39 IF (
40 "issue_row"."closed" NOTNULL OR (
41 "issue_row"."state" = 'voting' AND
42 "issue_row"."phase_finished" NOTNULL
43 )
44 ) THEN
45 IF
46 TG_RELID = 'direct_voter'::regclass AND
47 TG_OP = 'UPDATE'
48 THEN
49 IF
50 OLD."issue_id" = NEW."issue_id" AND
51 OLD."member_id" = NEW."member_id" AND
52 OLD."weight" = NEW."weight"
53 THEN
54 RETURN NULL; -- allows changing of voter comment
55 END IF;
56 END IF;
57 RAISE EXCEPTION 'Tried to modify data after voting has been closed.';
58 END IF;
59 RETURN NULL;
60 END;
61 $$;
63 CREATE OR REPLACE FUNCTION "close_voting"("issue_id_p" "issue"."id"%TYPE)
64 RETURNS VOID
65 LANGUAGE 'plpgsql' VOLATILE AS $$
66 DECLARE
67 "area_id_v" "area"."id"%TYPE;
68 "unit_id_v" "unit"."id"%TYPE;
69 "member_id_v" "member"."id"%TYPE;
70 BEGIN
71 PERFORM "require_transaction_isolation"();
72 SELECT "area_id" INTO "area_id_v" FROM "issue" WHERE "id" = "issue_id_p";
73 SELECT "unit_id" INTO "unit_id_v" FROM "area" WHERE "id" = "area_id_v";
74 -- override protection triggers:
75 DELETE FROM "internal_session_store";
76 INSERT INTO "internal_session_store" ("backend_pid", "key", "value")
77 VALUES (pg_backend_pid(), 'override_protection_triggers', TRUE::TEXT);
78 -- delete timestamp of voting comment:
79 UPDATE "direct_voter" SET "comment_changed" = NULL
80 WHERE "issue_id" = "issue_id_p";
81 -- delete delegating votes (in cases of manual reset of issue state):
82 DELETE FROM "delegating_voter"
83 WHERE "issue_id" = "issue_id_p";
84 -- delete votes from non-privileged voters:
85 DELETE FROM "direct_voter"
86 USING (
87 SELECT
88 "direct_voter"."member_id"
89 FROM "direct_voter"
90 JOIN "member" ON "direct_voter"."member_id" = "member"."id"
91 LEFT JOIN "privilege"
92 ON "privilege"."unit_id" = "unit_id_v"
93 AND "privilege"."member_id" = "direct_voter"."member_id"
94 WHERE "direct_voter"."issue_id" = "issue_id_p" AND (
95 "member"."active" = FALSE OR
96 "privilege"."voting_right" ISNULL OR
97 "privilege"."voting_right" = FALSE
98 )
99 ) AS "subquery"
100 WHERE "direct_voter"."issue_id" = "issue_id_p"
101 AND "direct_voter"."member_id" = "subquery"."member_id";
102 -- consider delegations:
103 UPDATE "direct_voter" SET "weight" = 1
104 WHERE "issue_id" = "issue_id_p";
105 PERFORM "add_vote_delegations"("issue_id_p");
106 -- finish overriding protection triggers (mandatory, as pids may be reused):
107 DELETE FROM "internal_session_store";
108 -- materialize battle_view:
109 -- NOTE: "closed" column of issue must be set at this point
110 DELETE FROM "battle" WHERE "issue_id" = "issue_id_p";
111 INSERT INTO "battle" (
112 "issue_id",
113 "winning_initiative_id", "losing_initiative_id",
114 "count"
115 ) SELECT
116 "issue_id",
117 "winning_initiative_id", "losing_initiative_id",
118 "count"
119 FROM "battle_view" WHERE "issue_id" = "issue_id_p";
120 -- set voter count:
121 UPDATE "issue" SET
122 "voter_count" = (
123 SELECT coalesce(sum("weight"), 0)
124 FROM "direct_voter" WHERE "issue_id" = "issue_id_p"
125 )
126 WHERE "id" = "issue_id_p";
127 -- copy "positive_votes" and "negative_votes" from "battle" table:
128 UPDATE "initiative" SET
129 "positive_votes" = "battle_win"."count",
130 "negative_votes" = "battle_lose"."count"
131 FROM "battle" AS "battle_win", "battle" AS "battle_lose"
132 WHERE
133 "battle_win"."issue_id" = "issue_id_p" AND
134 "battle_win"."winning_initiative_id" = "initiative"."id" AND
135 "battle_win"."losing_initiative_id" ISNULL AND
136 "battle_lose"."issue_id" = "issue_id_p" AND
137 "battle_lose"."losing_initiative_id" = "initiative"."id" AND
138 "battle_lose"."winning_initiative_id" ISNULL;
139 END;
140 $$;
142 COMMIT;