liquid_feedback_core

annotate update/core-update.v2.0.12-v2.1.0.sql @ 307:847d59f94ceb

find changesets by author, revision, files, or words in the commit message
Merged fix from v2.0.12: Removed unwanted (and broken) tie-breaking by approval rate
author jbe
date Fri Oct 05 13:45:37 2012 +0200 (2012-10-05)
parents update/core-update.v2.0.11-v2.1.0.sql@7cad34b945ac
children 5c98265b39a0
rev   line source
jbe@262 1 BEGIN;
jbe@262 2
jbe@287 3
jbe@287 4 -- update version number
jbe@287 5
jbe@262 6 CREATE OR REPLACE VIEW "liquid_feedback_version" AS
jbe@262 7 SELECT * FROM (VALUES ('2.1.0', 2, 1, 0))
jbe@262 8 AS "subquery"("string", "major", "minor", "revision");
jbe@262 9
jbe@287 10
jbe@287 11 -- old API tables are now deprecated
jbe@287 12
jbe@286 13 COMMENT ON TYPE "application_access_level" IS 'DEPRECATED, WILL BE REMOVED! Access privileges for applications using the API';
jbe@286 14 COMMENT ON TABLE "member_application" IS 'DEPRECATED, WILL BE REMOVED! Registered application being allowed to use the API';
jbe@286 15
jbe@287 16
jbe@287 17 -- new polling mode and changed privileges
jbe@287 18
jbe@262 19 ALTER TABLE "policy" ADD COLUMN "polling" BOOLEAN NOT NULL DEFAULT FALSE;
jbe@262 20 ALTER TABLE "policy" ALTER COLUMN "admission_time" DROP NOT NULL;
jbe@262 21 ALTER TABLE "policy" ALTER COLUMN "discussion_time" DROP NOT NULL;
jbe@262 22 ALTER TABLE "policy" ALTER COLUMN "verification_time" DROP NOT NULL;
jbe@262 23 ALTER TABLE "policy" ALTER COLUMN "voting_time" DROP NOT NULL;
jbe@292 24 ALTER TABLE "policy" ALTER COLUMN "issue_quorum_num" DROP NOT NULL;
jbe@292 25 ALTER TABLE "policy" ALTER COLUMN "issue_quorum_den" DROP NOT NULL;
jbe@262 26 ALTER TABLE "policy" ADD CONSTRAINT "timing" CHECK (
jbe@262 27 ( "polling" = FALSE AND
jbe@262 28 "admission_time" NOTNULL AND "discussion_time" NOTNULL AND
jbe@262 29 "verification_time" NOTNULL AND "voting_time" NOTNULL ) OR
jbe@262 30 ( "polling" = TRUE AND
jbe@263 31 "admission_time" ISNULL AND "discussion_time" NOTNULL AND
jbe@262 32 "verification_time" NOTNULL AND "voting_time" NOTNULL ) OR
jbe@262 33 ( "polling" = TRUE AND
jbe@262 34 "admission_time" ISNULL AND "discussion_time" ISNULL AND
jbe@262 35 "verification_time" ISNULL AND "voting_time" ISNULL ) );
jbe@292 36 ALTER TABLE "policy" ADD CONSTRAINT "issue_quorum_if_and_only_if_not_polling" CHECK (
jbe@292 37 "polling" = "issue_quorum_num" ISNULL AND
jbe@292 38 "polling" = "issue_quorum_den" ISNULL );
jbe@289 39 COMMENT ON COLUMN "policy"."polling" IS 'TRUE = special policy for non-user-generated issues without issue quorum, where certain initiatives (those having the "polling" flag set) do not need to pass the initiative quorum; "admission_time" MUST be set to NULL, the other timings may be set to NULL altogether, allowing individual timing for those issues';
jbe@262 40
jbe@291 41 ALTER TABLE "issue" ALTER COLUMN "admission_time" DROP NOT NULL;
jbe@291 42 ALTER TABLE "issue" ADD CONSTRAINT "admission_time_not_null_unless_instantly_accepted" CHECK (
jbe@291 43 "admission_time" NOTNULL OR ("accepted" NOTNULL AND "accepted" = "created") );
jbe@291 44
jbe@262 45 ALTER TABLE "initiative" ADD COLUMN "polling" BOOLEAN NOT NULL DEFAULT FALSE;
jbe@289 46 COMMENT ON COLUMN "initiative"."polling" IS 'Initiative does not need to pass the initiative quorum (see "policy"."polling")';
jbe@262 47
jbe@262 48 ALTER TABLE "privilege" RENAME COLUMN "voting_right_manager" TO "member_manager";
jbe@262 49 ALTER TABLE "privilege" ADD COLUMN "initiative_right" BOOLEAN NOT NULL DEFAULT TRUE;
jbe@262 50 ALTER TABLE "privilege" ADD COLUMN "polling_right" BOOLEAN NOT NULL DEFAULT FALSE;
jbe@262 51 UPDATE "privilege" SET "initiative_right" = "voting_right";
jbe@262 52 COMMENT ON COLUMN "privilege"."admin_manager" IS 'Grant/revoke any privileges to/from other members';
jbe@262 53 COMMENT ON COLUMN "privilege"."member_manager" IS 'Adding/removing members from the unit, granting or revoking "initiative_right" and "voting_right"';
jbe@262 54 COMMENT ON COLUMN "privilege"."initiative_right" IS 'Right to create an initiative';
jbe@262 55 COMMENT ON COLUMN "privilege"."voting_right" IS 'Right to support initiatives, create and rate suggestions, and to vote';
jbe@289 56 COMMENT ON COLUMN "privilege"."polling_right" IS 'Right to create issues with policies having the "policy"."polling" flag set, and to add initiatives having the "initiative"."polling" flag set to those issues';
jbe@262 57
jbe@293 58 DROP VIEW "member_contingent_left";
jbe@293 59 DROP VIEW "member_contingent";
jbe@293 60 ALTER TABLE "contingent" DROP CONSTRAINT "contingent_pkey";
jbe@293 61 ALTER TABLE "contingent" ALTER COLUMN "time_frame" DROP NOT NULL;
jbe@294 62 ALTER TABLE "contingent" ADD COLUMN "polling" BOOLEAN DEFAULT FALSE;
jbe@293 63 ALTER TABLE "contingent" ADD PRIMARY KEY ("polling", "time_frame");
jbe@294 64 ALTER TABLE "contingent" ALTER COLUMN "polling" DROP DEFAULT;
jbe@293 65 COMMENT ON COLUMN "contingent"."polling" IS 'Determines if settings are for creating initiatives and new drafts of initiatives with "polling" flag set';
jbe@293 66
jbe@293 67 CREATE VIEW "member_contingent" AS
jbe@293 68 SELECT
jbe@293 69 "member"."id" AS "member_id",
jbe@293 70 "contingent"."polling",
jbe@293 71 "contingent"."time_frame",
jbe@293 72 CASE WHEN "contingent"."text_entry_limit" NOTNULL THEN
jbe@293 73 (
jbe@293 74 SELECT count(1) FROM "draft"
jbe@293 75 JOIN "initiative" ON "initiative"."id" = "draft"."initiative_id"
jbe@293 76 WHERE "draft"."author_id" = "member"."id"
jbe@293 77 AND "initiative"."polling" = "contingent"."polling"
jbe@293 78 AND "draft"."created" > now() - "contingent"."time_frame"
jbe@293 79 ) + (
jbe@293 80 SELECT count(1) FROM "suggestion"
jbe@293 81 JOIN "initiative" ON "initiative"."id" = "suggestion"."initiative_id"
jbe@293 82 WHERE "suggestion"."author_id" = "member"."id"
jbe@293 83 AND "contingent"."polling" = FALSE
jbe@293 84 AND "suggestion"."created" > now() - "contingent"."time_frame"
jbe@293 85 )
jbe@293 86 ELSE NULL END AS "text_entry_count",
jbe@293 87 "contingent"."text_entry_limit",
jbe@293 88 CASE WHEN "contingent"."initiative_limit" NOTNULL THEN (
jbe@293 89 SELECT count(1) FROM "opening_draft" AS "draft"
jbe@293 90 JOIN "initiative" ON "initiative"."id" = "draft"."initiative_id"
jbe@293 91 WHERE "draft"."author_id" = "member"."id"
jbe@293 92 AND "initiative"."polling" = "contingent"."polling"
jbe@293 93 AND "draft"."created" > now() - "contingent"."time_frame"
jbe@293 94 ) ELSE NULL END AS "initiative_count",
jbe@293 95 "contingent"."initiative_limit"
jbe@293 96 FROM "member" CROSS JOIN "contingent";
jbe@293 97
jbe@293 98 COMMENT ON VIEW "member_contingent" IS 'Actual counts of text entries and initiatives are calculated per member for each limit in the "contingent" table.';
jbe@293 99
jbe@293 100 COMMENT ON COLUMN "member_contingent"."text_entry_count" IS 'Only calculated when "text_entry_limit" is not null in the same row';
jbe@293 101 COMMENT ON COLUMN "member_contingent"."initiative_count" IS 'Only calculated when "initiative_limit" is not null in the same row';
jbe@293 102
jbe@293 103 CREATE VIEW "member_contingent_left" AS
jbe@293 104 SELECT
jbe@293 105 "member_id",
jbe@293 106 "polling",
jbe@293 107 max("text_entry_limit" - "text_entry_count") AS "text_entries_left",
jbe@293 108 max("initiative_limit" - "initiative_count") AS "initiatives_left"
jbe@293 109 FROM "member_contingent" GROUP BY "member_id", "polling";
jbe@293 110
jbe@293 111 COMMENT ON VIEW "member_contingent_left" IS 'Amount of text entries or initiatives which can be posted now instantly by a member. This view should be used by a frontend to determine, if the contingent for posting is exhausted.';
jbe@293 112
jbe@262 113 CREATE OR REPLACE FUNCTION "freeze_after_snapshot"
jbe@262 114 ( "issue_id_p" "issue"."id"%TYPE )
jbe@262 115 RETURNS VOID
jbe@262 116 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@262 117 DECLARE
jbe@262 118 "issue_row" "issue"%ROWTYPE;
jbe@262 119 "policy_row" "policy"%ROWTYPE;
jbe@262 120 "initiative_row" "initiative"%ROWTYPE;
jbe@262 121 BEGIN
jbe@262 122 SELECT * INTO "issue_row" FROM "issue" WHERE "id" = "issue_id_p";
jbe@262 123 SELECT * INTO "policy_row"
jbe@262 124 FROM "policy" WHERE "id" = "issue_row"."policy_id";
jbe@262 125 PERFORM "set_snapshot_event"("issue_id_p", 'full_freeze');
jbe@262 126 FOR "initiative_row" IN
jbe@262 127 SELECT * FROM "initiative"
jbe@262 128 WHERE "issue_id" = "issue_id_p" AND "revoked" ISNULL
jbe@262 129 LOOP
jbe@262 130 IF
jbe@262 131 "initiative_row"."polling" OR (
jbe@262 132 "initiative_row"."satisfied_supporter_count" > 0 AND
jbe@262 133 "initiative_row"."satisfied_supporter_count" *
jbe@262 134 "policy_row"."initiative_quorum_den" >=
jbe@262 135 "issue_row"."population" * "policy_row"."initiative_quorum_num"
jbe@262 136 )
jbe@262 137 THEN
jbe@262 138 UPDATE "initiative" SET "admitted" = TRUE
jbe@262 139 WHERE "id" = "initiative_row"."id";
jbe@262 140 ELSE
jbe@262 141 UPDATE "initiative" SET "admitted" = FALSE
jbe@262 142 WHERE "id" = "initiative_row"."id";
jbe@262 143 END IF;
jbe@262 144 END LOOP;
jbe@262 145 IF EXISTS (
jbe@262 146 SELECT NULL FROM "initiative"
jbe@262 147 WHERE "issue_id" = "issue_id_p" AND "admitted" = TRUE
jbe@262 148 ) THEN
jbe@262 149 UPDATE "issue" SET
jbe@262 150 "state" = 'voting',
jbe@262 151 "accepted" = coalesce("accepted", now()),
jbe@262 152 "half_frozen" = coalesce("half_frozen", now()),
jbe@262 153 "fully_frozen" = now()
jbe@262 154 WHERE "id" = "issue_id_p";
jbe@262 155 ELSE
jbe@262 156 UPDATE "issue" SET
jbe@262 157 "state" = 'canceled_no_initiative_admitted',
jbe@262 158 "accepted" = coalesce("accepted", now()),
jbe@262 159 "half_frozen" = coalesce("half_frozen", now()),
jbe@262 160 "fully_frozen" = now(),
jbe@262 161 "closed" = now(),
jbe@262 162 "ranks_available" = TRUE
jbe@262 163 WHERE "id" = "issue_id_p";
jbe@262 164 -- NOTE: The following DELETE statements have effect only when
jbe@262 165 -- issue state has been manipulated
jbe@262 166 DELETE FROM "direct_voter" WHERE "issue_id" = "issue_id_p";
jbe@262 167 DELETE FROM "delegating_voter" WHERE "issue_id" = "issue_id_p";
jbe@262 168 DELETE FROM "battle" WHERE "issue_id" = "issue_id_p";
jbe@262 169 END IF;
jbe@262 170 RETURN;
jbe@262 171 END;
jbe@262 172 $$;
jbe@262 173
jbe@287 174
jbe@287 175 -- issue comments removed, voting comments integrated in "direct_voter" table
jbe@287 176
jbe@287 177 ALTER TABLE "direct_voter" ADD COLUMN "comment_changed" TIMESTAMPTZ;
jbe@287 178 ALTER TABLE "direct_voter" ADD COLUMN "formatting_engine" TEXT;
jbe@287 179 ALTER TABLE "direct_voter" ADD COLUMN "comment" TEXT;
jbe@287 180 ALTER TABLE "direct_voter" ADD COLUMN "text_search_data" TSVECTOR;
jbe@287 181 CREATE INDEX "direct_voter_text_search_data_idx" ON "direct_voter" USING gin ("text_search_data");
jbe@287 182 CREATE TRIGGER "update_text_search_data"
jbe@287 183 BEFORE INSERT OR UPDATE ON "direct_voter"
jbe@287 184 FOR EACH ROW EXECUTE PROCEDURE
jbe@287 185 tsvector_update_trigger('text_search_data', 'pg_catalog.simple', "comment");
jbe@287 186
jbe@287 187 COMMENT ON COLUMN "direct_voter"."comment_changed" IS 'Shall be set on comment change, to indicate a comment being modified after voting has been finished; Automatically set to NULL after voting phase; Automatically set to NULL by trigger, if "comment" is set to NULL';
jbe@287 188 COMMENT ON COLUMN "direct_voter"."formatting_engine" IS 'Allows different formatting engines (i.e. wiki formats) to be used for "direct_voter"."comment"; Automatically set to NULL by trigger, if "comment" is set to NULL';
jbe@287 189 COMMENT ON COLUMN "direct_voter"."comment" IS 'Is to be set or updated by the frontend, if comment was inserted or updated AFTER the issue has been closed. Otherwise it shall be set to NULL.';
jbe@287 190
jbe@287 191 CREATE TABLE "rendered_voter_comment" (
jbe@287 192 PRIMARY KEY ("issue_id", "member_id", "format"),
jbe@287 193 FOREIGN KEY ("issue_id", "member_id")
jbe@287 194 REFERENCES "direct_voter" ("issue_id", "member_id")
jbe@287 195 ON DELETE CASCADE ON UPDATE CASCADE,
jbe@287 196 "issue_id" INT4,
jbe@287 197 "member_id" INT4,
jbe@287 198 "format" TEXT,
jbe@287 199 "content" TEXT NOT NULL );
jbe@287 200
jbe@287 201 COMMENT ON TABLE "rendered_voter_comment" IS 'This table may be used by frontends to cache "rendered" voter comments (e.g. HTML output generated from wiki text)';
jbe@287 202
jbe@287 203 DROP TABLE "rendered_issue_comment";
jbe@287 204 DROP TABLE "issue_comment";
jbe@287 205 DROP TABLE "rendered_voting_comment";
jbe@287 206 DROP TABLE "voting_comment";
jbe@287 207
jbe@287 208 CREATE FUNCTION "voter_comment_fields_only_set_when_voter_comment_is_set_trigger"()
jbe@287 209 RETURNS TRIGGER
jbe@287 210 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@287 211 BEGIN
jbe@287 212 IF NEW."comment" ISNULL THEN
jbe@287 213 NEW."comment_changed" := NULL;
jbe@287 214 NEW."formatting_engine" := NULL;
jbe@287 215 END IF;
jbe@287 216 RETURN NEW;
jbe@287 217 END;
jbe@287 218 $$;
jbe@287 219
jbe@287 220 CREATE TRIGGER "voter_comment_fields_only_set_when_voter_comment_is_set"
jbe@287 221 BEFORE INSERT OR UPDATE ON "direct_voter"
jbe@287 222 FOR EACH ROW EXECUTE PROCEDURE
jbe@287 223 "voter_comment_fields_only_set_when_voter_comment_is_set_trigger"();
jbe@287 224
jbe@287 225 COMMENT ON FUNCTION "voter_comment_fields_only_set_when_voter_comment_is_set_trigger"() IS 'Implementation of trigger "voter_comment_fields_only_set_when_voter_comment_is_set" ON table "direct_voter"';
jbe@287 226 COMMENT ON TRIGGER "voter_comment_fields_only_set_when_voter_comment_is_set" ON "direct_voter" IS 'If "comment" is set to NULL, then other comment related fields are also set to NULL.';
jbe@287 227
jbe@290 228 CREATE OR REPLACE FUNCTION "forbid_changes_on_closed_issue_trigger"()
jbe@290 229 RETURNS TRIGGER
jbe@290 230 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@290 231 DECLARE
jbe@290 232 "issue_id_v" "issue"."id"%TYPE;
jbe@290 233 "issue_row" "issue"%ROWTYPE;
jbe@290 234 BEGIN
jbe@290 235 IF TG_RELID = 'direct_voter'::regclass AND TG_OP = 'UPDATE' THEN
jbe@290 236 IF
jbe@290 237 OLD."issue_id" = NEW."issue_id" AND
jbe@290 238 OLD."member_id" = NEW."member_id" AND
jbe@290 239 OLD."weight" = NEW."weight"
jbe@290 240 THEN
jbe@290 241 RETURN NULL; -- allows changing of voter comment
jbe@290 242 END IF;
jbe@290 243 END IF;
jbe@290 244 IF TG_OP = 'DELETE' THEN
jbe@290 245 "issue_id_v" := OLD."issue_id";
jbe@290 246 ELSE
jbe@290 247 "issue_id_v" := NEW."issue_id";
jbe@290 248 END IF;
jbe@290 249 SELECT INTO "issue_row" * FROM "issue"
jbe@290 250 WHERE "id" = "issue_id_v" FOR SHARE;
jbe@290 251 IF "issue_row"."closed" NOTNULL THEN
jbe@290 252 RAISE EXCEPTION 'Tried to modify data belonging to a closed issue.';
jbe@290 253 END IF;
jbe@290 254 RETURN NULL;
jbe@290 255 END;
jbe@290 256 $$;
jbe@290 257
jbe@285 258 CREATE OR REPLACE FUNCTION "close_voting"("issue_id_p" "issue"."id"%TYPE)
jbe@285 259 RETURNS VOID
jbe@285 260 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@285 261 DECLARE
jbe@285 262 "area_id_v" "area"."id"%TYPE;
jbe@285 263 "unit_id_v" "unit"."id"%TYPE;
jbe@285 264 "member_id_v" "member"."id"%TYPE;
jbe@285 265 BEGIN
jbe@285 266 PERFORM "lock_issue"("issue_id_p");
jbe@285 267 SELECT "area_id" INTO "area_id_v" FROM "issue" WHERE "id" = "issue_id_p";
jbe@285 268 SELECT "unit_id" INTO "unit_id_v" FROM "area" WHERE "id" = "area_id_v";
jbe@285 269 -- delete timestamp of voting comment:
jbe@285 270 UPDATE "direct_voter" SET "comment_changed" = NULL
jbe@285 271 WHERE "issue_id" = "issue_id_p";
jbe@285 272 -- delete delegating votes (in cases of manual reset of issue state):
jbe@285 273 DELETE FROM "delegating_voter"
jbe@285 274 WHERE "issue_id" = "issue_id_p";
jbe@285 275 -- delete votes from non-privileged voters:
jbe@285 276 DELETE FROM "direct_voter"
jbe@285 277 USING (
jbe@285 278 SELECT
jbe@285 279 "direct_voter"."member_id"
jbe@285 280 FROM "direct_voter"
jbe@285 281 JOIN "member" ON "direct_voter"."member_id" = "member"."id"
jbe@285 282 LEFT JOIN "privilege"
jbe@285 283 ON "privilege"."unit_id" = "unit_id_v"
jbe@285 284 AND "privilege"."member_id" = "direct_voter"."member_id"
jbe@285 285 WHERE "direct_voter"."issue_id" = "issue_id_p" AND (
jbe@285 286 "member"."active" = FALSE OR
jbe@285 287 "privilege"."voting_right" ISNULL OR
jbe@285 288 "privilege"."voting_right" = FALSE
jbe@285 289 )
jbe@285 290 ) AS "subquery"
jbe@285 291 WHERE "direct_voter"."issue_id" = "issue_id_p"
jbe@285 292 AND "direct_voter"."member_id" = "subquery"."member_id";
jbe@285 293 -- consider delegations:
jbe@285 294 UPDATE "direct_voter" SET "weight" = 1
jbe@285 295 WHERE "issue_id" = "issue_id_p";
jbe@285 296 PERFORM "add_vote_delegations"("issue_id_p");
jbe@285 297 -- set voter count and mark issue as being calculated:
jbe@285 298 UPDATE "issue" SET
jbe@285 299 "state" = 'calculation',
jbe@285 300 "closed" = now(),
jbe@285 301 "voter_count" = (
jbe@285 302 SELECT coalesce(sum("weight"), 0)
jbe@285 303 FROM "direct_voter" WHERE "issue_id" = "issue_id_p"
jbe@285 304 )
jbe@285 305 WHERE "id" = "issue_id_p";
jbe@285 306 -- materialize battle_view:
jbe@285 307 -- NOTE: "closed" column of issue must be set at this point
jbe@285 308 DELETE FROM "battle" WHERE "issue_id" = "issue_id_p";
jbe@285 309 INSERT INTO "battle" (
jbe@285 310 "issue_id",
jbe@285 311 "winning_initiative_id", "losing_initiative_id",
jbe@285 312 "count"
jbe@285 313 ) SELECT
jbe@285 314 "issue_id",
jbe@285 315 "winning_initiative_id", "losing_initiative_id",
jbe@285 316 "count"
jbe@285 317 FROM "battle_view" WHERE "issue_id" = "issue_id_p";
jbe@285 318 -- copy "positive_votes" and "negative_votes" from "battle" table:
jbe@285 319 UPDATE "initiative" SET
jbe@285 320 "positive_votes" = "battle_win"."count",
jbe@285 321 "negative_votes" = "battle_lose"."count"
jbe@285 322 FROM "battle" AS "battle_win", "battle" AS "battle_lose"
jbe@285 323 WHERE
jbe@285 324 "battle_win"."issue_id" = "issue_id_p" AND
jbe@285 325 "battle_win"."winning_initiative_id" = "initiative"."id" AND
jbe@285 326 "battle_win"."losing_initiative_id" ISNULL AND
jbe@285 327 "battle_lose"."issue_id" = "issue_id_p" AND
jbe@285 328 "battle_lose"."losing_initiative_id" = "initiative"."id" AND
jbe@285 329 "battle_lose"."winning_initiative_id" ISNULL;
jbe@285 330 END;
jbe@285 331 $$;
jbe@285 332
jbe@288 333 CREATE OR REPLACE FUNCTION "clean_issue"("issue_id_p" "issue"."id"%TYPE)
jbe@288 334 RETURNS VOID
jbe@288 335 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@288 336 DECLARE
jbe@288 337 "issue_row" "issue"%ROWTYPE;
jbe@288 338 BEGIN
jbe@288 339 SELECT * INTO "issue_row"
jbe@288 340 FROM "issue" WHERE "id" = "issue_id_p"
jbe@288 341 FOR UPDATE;
jbe@288 342 IF "issue_row"."cleaned" ISNULL THEN
jbe@288 343 UPDATE "issue" SET
jbe@288 344 "state" = 'voting',
jbe@288 345 "closed" = NULL,
jbe@288 346 "ranks_available" = FALSE
jbe@288 347 WHERE "id" = "issue_id_p";
jbe@288 348 DELETE FROM "delegating_voter"
jbe@288 349 WHERE "issue_id" = "issue_id_p";
jbe@288 350 DELETE FROM "direct_voter"
jbe@288 351 WHERE "issue_id" = "issue_id_p";
jbe@288 352 DELETE FROM "delegating_interest_snapshot"
jbe@288 353 WHERE "issue_id" = "issue_id_p";
jbe@288 354 DELETE FROM "direct_interest_snapshot"
jbe@288 355 WHERE "issue_id" = "issue_id_p";
jbe@288 356 DELETE FROM "delegating_population_snapshot"
jbe@288 357 WHERE "issue_id" = "issue_id_p";
jbe@288 358 DELETE FROM "direct_population_snapshot"
jbe@288 359 WHERE "issue_id" = "issue_id_p";
jbe@288 360 DELETE FROM "non_voter"
jbe@288 361 WHERE "issue_id" = "issue_id_p";
jbe@288 362 DELETE FROM "delegation"
jbe@288 363 WHERE "issue_id" = "issue_id_p";
jbe@288 364 DELETE FROM "supporter"
jbe@288 365 WHERE "issue_id" = "issue_id_p";
jbe@288 366 UPDATE "issue" SET
jbe@288 367 "state" = "issue_row"."state",
jbe@288 368 "closed" = "issue_row"."closed",
jbe@288 369 "ranks_available" = "issue_row"."ranks_available",
jbe@288 370 "cleaned" = now()
jbe@288 371 WHERE "id" = "issue_id_p";
jbe@288 372 END IF;
jbe@288 373 RETURN;
jbe@288 374 END;
jbe@288 375 $$;
jbe@288 376
jbe@287 377
jbe@287 378 -- "non_voter" deletes "direct_voter" and vice versa
jbe@287 379
jbe@287 380 CREATE FUNCTION "non_voter_deletes_direct_voter_trigger"()
jbe@287 381 RETURNS TRIGGER
jbe@287 382 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@287 383 BEGIN
jbe@287 384 DELETE FROM "direct_voter"
jbe@287 385 WHERE "issue_id" = NEW."issue_id" AND "member_id" = NEW."member_id";
jbe@287 386 RETURN NULL;
jbe@287 387 END;
jbe@287 388 $$;
jbe@287 389
jbe@287 390 CREATE TRIGGER "non_voter_deletes_direct_voter"
jbe@287 391 AFTER INSERT OR UPDATE ON "non_voter"
jbe@287 392 FOR EACH ROW EXECUTE PROCEDURE
jbe@287 393 "non_voter_deletes_direct_voter_trigger"();
jbe@287 394
jbe@287 395 COMMENT ON FUNCTION "non_voter_deletes_direct_voter_trigger"() IS 'Implementation of trigger "non_voter_deletes_direct_voter" on table "non_voter"';
jbe@287 396 COMMENT ON TRIGGER "non_voter_deletes_direct_voter" ON "non_voter" IS 'An entry in the "non_voter" table deletes an entry in the "direct_voter" table (and vice versa due to trigger "direct_voter_deletes_non_voter" on table "direct_voter")';
jbe@287 397
jbe@287 398 CREATE FUNCTION "direct_voter_deletes_non_voter_trigger"()
jbe@287 399 RETURNS TRIGGER
jbe@287 400 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@287 401 BEGIN
jbe@287 402 DELETE FROM "non_voter"
jbe@287 403 WHERE "issue_id" = NEW."issue_id" AND "member_id" = NEW."member_id";
jbe@287 404 RETURN NULL;
jbe@287 405 END;
jbe@287 406 $$;
jbe@287 407
jbe@287 408 CREATE TRIGGER "direct_voter_deletes_non_voter"
jbe@287 409 AFTER INSERT OR UPDATE ON "direct_voter"
jbe@287 410 FOR EACH ROW EXECUTE PROCEDURE
jbe@287 411 "direct_voter_deletes_non_voter_trigger"();
jbe@287 412
jbe@287 413 COMMENT ON FUNCTION "direct_voter_deletes_non_voter_trigger"() IS 'Implementation of trigger "direct_voter_deletes_non_voter" on table "direct_voter"';
jbe@287 414 COMMENT ON TRIGGER "direct_voter_deletes_non_voter" ON "direct_voter" IS 'An entry in the "direct_voter" table deletes an entry in the "non_voter" table (and vice versa due to trigger "non_voter_deletes_direct_voter" on table "non_voter")';
jbe@287 415
jbe@287 416
jbe@297 417 -- different locking levels and different locking order to avoid deadlocks
jbe@297 418
jbe@297 419 CREATE OR REPLACE FUNCTION "lock_issue"
jbe@297 420 ( "issue_id_p" "issue"."id"%TYPE )
jbe@297 421 RETURNS VOID
jbe@297 422 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@297 423 BEGIN
jbe@297 424 -- The following locking order is used:
jbe@297 425 -- 1st) row-level lock on the issue
jbe@297 426 -- 2nd) table-level locks in order of occurrence in the core.sql file
jbe@297 427 PERFORM NULL FROM "issue" WHERE "id" = "issue_id_p" FOR UPDATE;
jbe@297 428 -- NOTE: The row-level exclusive lock in combination with the
jbe@297 429 -- share_row_lock_issue(_via_initiative)_trigger functions (which
jbe@297 430 -- acquire a row-level share lock on the issue) ensure that no data
jbe@297 431 -- is changed, which could affect calculation of snapshots or
jbe@297 432 -- counting of votes. Table "delegation" must be table-level-locked,
jbe@297 433 -- as it also contains issue- and global-scope delegations.
jbe@301 434 PERFORM NULL FROM "member" WHERE "active" FOR SHARE;
jbe@299 435 -- NOTE: As we later cause implicit row-level share locks on many
jbe@301 436 -- active members, we lock them before locking any other table
jbe@301 437 -- to avoid deadlocks
jbe@301 438 LOCK TABLE "member" IN SHARE MODE;
jbe@297 439 LOCK TABLE "privilege" IN SHARE MODE;
jbe@297 440 LOCK TABLE "membership" IN SHARE MODE;
jbe@297 441 LOCK TABLE "policy" IN SHARE MODE;
jbe@297 442 LOCK TABLE "delegation" IN SHARE MODE;
jbe@297 443 LOCK TABLE "direct_population_snapshot" IN EXCLUSIVE MODE;
jbe@297 444 LOCK TABLE "delegating_population_snapshot" IN EXCLUSIVE MODE;
jbe@297 445 LOCK TABLE "direct_interest_snapshot" IN EXCLUSIVE MODE;
jbe@297 446 LOCK TABLE "delegating_interest_snapshot" IN EXCLUSIVE MODE;
jbe@297 447 LOCK TABLE "direct_supporter_snapshot" IN EXCLUSIVE MODE;
jbe@297 448 RETURN;
jbe@297 449 END;
jbe@297 450 $$;
jbe@297 451
jbe@297 452
jbe@287 453 -- new comment on function "delete_private_data"()
jbe@287 454
jbe@283 455 COMMENT ON FUNCTION "delete_private_data"() IS 'Used by lf_export script. DO NOT USE on productive database, but only on a copy! This function deletes all data which should not be publicly available, and can be used to create a database dump for publication. See source code to see which data is deleted. If you need a different behaviour, copy this function and modify lf_export accordingly, to avoid data-leaks after updating.';
jbe@283 456
jbe@287 457
jbe@262 458 COMMIT;

Impressum / About Us