liquid_feedback_core

annotate update/core-update.v3.0.1-v3.0.2.sql @ 430:3031c1973748

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Update script to v3.0.2 added
author jbe
date Thu May 22 05:29:28 2014 +0200 (2014-05-22)
parents 73c2ab2d068f
children 5676b0d33833
rev   line source
jbe@423 1 BEGIN;
jbe@423 2
jbe@423 3 CREATE OR REPLACE VIEW "liquid_feedback_version" AS
jbe@423 4 SELECT * FROM (VALUES ('3.0.2', 3, 0, 2))
jbe@423 5 AS "subquery"("string", "major", "minor", "revision");
jbe@423 6
jbe@430 7
jbe@430 8 CREATE TYPE "defeat_strength" AS ENUM ('simple', 'tuple');
jbe@430 9
jbe@430 10 COMMENT ON TYPE "defeat_strength" IS 'How pairwise defeats are measured for the Schulze method: ''simple'' = only the number of winning votes, ''tuple'' = primarily the number of winning votes, secondarily the number of losing votes';
jbe@430 11
jbe@430 12
jbe@430 13 CREATE TYPE "tie_breaking" AS ENUM ('simple', 'variant1', 'variant2');
jbe@430 14
jbe@430 15 COMMENT ON TYPE "tie_breaking" IS 'Tie-breaker for the Schulze method: ''simple'' = only initiative ids are used, ''variant1'' = use initiative ids in variant 1 for tie breaking of the links (TBRL) and sequentially forbid shared links, ''variant2'' = use initiative ids in variant 2 for tie breaking of the links (TBRL) and sequentially forbid shared links';
jbe@430 16
jbe@430 17
jbe@430 18 ALTER TABLE "policy" ADD COLUMN "defeat_strength" "defeat_strength" NOT NULL DEFAULT 'tuple';
jbe@430 19 ALTER TABLE "policy" ADD COLUMN "tie_breaking" "tie_breaking" NOT NULL DEFAULT 'variant1';
jbe@430 20
jbe@430 21 ALTER TABLE "policy" ADD
jbe@430 22 CONSTRAINT "no_reverse_beat_path_requires_tuple_defeat_strength" CHECK (
jbe@430 23 ("defeat_strength" = 'tuple'::"defeat_strength" OR "no_reverse_beat_path" = FALSE)
jbe@430 24 );
jbe@430 25
jbe@430 26 COMMENT ON COLUMN "policy"."defeat_strength" IS 'How pairwise defeats are measured for the Schulze method; see type "defeat_strength"; ''tuple'' is the recommended setting';
jbe@430 27 COMMENT ON COLUMN "policy"."tie_breaking" IS 'Tie-breaker for the Schulze method; see type "tie_breaking"; ''variant1'' or ''variant2'' are recommended';
jbe@430 28 COMMENT ON COLUMN "initiative"."reverse_beat_path" IS 'TRUE, if there is a beat path (may include ties) from this initiative to the status quo; set to NULL if "policy"."defeat_strength" is set to ''simple''';
jbe@430 29
jbe@430 30
jbe@430 31 DROP FUNCTION "calculate_ranks"("issue"."id"%TYPE);
jbe@430 32 DROP FUNCTION "defeat_strength"(INT4, INT4);
jbe@430 33
jbe@430 34
jbe@430 35 CREATE FUNCTION "defeat_strength"
jbe@430 36 ( "positive_votes_p" INT4,
jbe@430 37 "negative_votes_p" INT4,
jbe@430 38 "defeat_strength_p" "defeat_strength" )
jbe@430 39 RETURNS INT8
jbe@430 40 LANGUAGE 'plpgsql' IMMUTABLE AS $$
jbe@430 41 BEGIN
jbe@430 42 IF "defeat_strength_p" = 'simple'::"defeat_strength" THEN
jbe@430 43 IF "positive_votes_p" > "negative_votes_p" THEN
jbe@430 44 RETURN "positive_votes_p";
jbe@430 45 ELSE
jbe@430 46 RETURN 0;
jbe@430 47 END IF;
jbe@430 48 ELSE
jbe@430 49 IF "positive_votes_p" > "negative_votes_p" THEN
jbe@430 50 RETURN ("positive_votes_p"::INT8 << 31) - "negative_votes_p"::INT8;
jbe@430 51 ELSIF "positive_votes_p" = "negative_votes_p" THEN
jbe@430 52 RETURN 0;
jbe@430 53 ELSE
jbe@430 54 RETURN -1;
jbe@430 55 END IF;
jbe@430 56 END IF;
jbe@430 57 END;
jbe@430 58 $$;
jbe@430 59
jbe@430 60 COMMENT ON FUNCTION "defeat_strength"(INT4, INT4, "defeat_strength") IS 'Calculates defeat strength (INT8!) according to the "defeat_strength" option (see comment on type "defeat_strength")';
jbe@430 61
jbe@430 62
jbe@430 63 CREATE FUNCTION "secondary_link_strength"
jbe@430 64 ( "initiative1_ord_p" INT4,
jbe@430 65 "initiative2_ord_p" INT4,
jbe@430 66 "tie_breaking_p" "tie_breaking" )
jbe@430 67 RETURNS INT8
jbe@430 68 LANGUAGE 'plpgsql' IMMUTABLE AS $$
jbe@430 69 BEGIN
jbe@430 70 IF "initiative1_ord_p" = "initiative2_ord_p" THEN
jbe@430 71 RAISE EXCEPTION 'Identical initiative ids passed to "secondary_link_strength" function (should not happen)';
jbe@430 72 END IF;
jbe@430 73 RETURN (
jbe@430 74 CASE WHEN "tie_breaking_p" = 'simple'::"tie_breaking" THEN
jbe@430 75 0
jbe@430 76 ELSE
jbe@430 77 CASE WHEN "initiative1_ord_p" < "initiative2_ord_p" THEN
jbe@430 78 1::INT8 << 62
jbe@430 79 ELSE 0 END
jbe@430 80 +
jbe@430 81 CASE WHEN "tie_breaking_p" = 'variant2'::"tie_breaking" THEN
jbe@430 82 ("initiative2_ord_p"::INT8 << 31) - "initiative1_ord_p"::INT8
jbe@430 83 ELSE
jbe@430 84 "initiative2_ord_p"::INT8 - ("initiative1_ord_p"::INT8 << 31)
jbe@430 85 END
jbe@430 86 END
jbe@430 87 );
jbe@430 88 END;
jbe@430 89 $$;
jbe@430 90
jbe@430 91 COMMENT ON FUNCTION "secondary_link_strength"(INT4, INT4, "tie_breaking") IS 'Calculates a secondary criterion for the defeat strength (tie-breaking of the links)';
jbe@430 92
jbe@430 93
jbe@430 94 CREATE TYPE "link_strength" AS (
jbe@430 95 "primary" INT8,
jbe@430 96 "secondary" INT8 );
jbe@430 97
jbe@430 98 COMMENT ON TYPE "link_strength" IS 'Type to store the defeat strength of a link between two candidates plus a secondary criterion to create unique link strengths between the candidates (needed for tie-breaking ''variant1'' and ''variant2'')';
jbe@430 99
jbe@430 100
jbe@430 101 CREATE FUNCTION "find_best_paths"("matrix_d" "link_strength"[][])
jbe@430 102 RETURNS "link_strength"[][]
jbe@430 103 LANGUAGE 'plpgsql' IMMUTABLE AS $$
jbe@430 104 DECLARE
jbe@430 105 "dimension_v" INT4;
jbe@430 106 "matrix_p" "link_strength"[][];
jbe@430 107 "i" INT4;
jbe@430 108 "j" INT4;
jbe@430 109 "k" INT4;
jbe@430 110 BEGIN
jbe@430 111 "dimension_v" := array_upper("matrix_d", 1);
jbe@430 112 "matrix_p" := "matrix_d";
jbe@430 113 "i" := 1;
jbe@430 114 LOOP
jbe@430 115 "j" := 1;
jbe@430 116 LOOP
jbe@430 117 IF "i" != "j" THEN
jbe@430 118 "k" := 1;
jbe@430 119 LOOP
jbe@430 120 IF "i" != "k" AND "j" != "k" THEN
jbe@430 121 IF "matrix_p"["j"]["i"] < "matrix_p"["i"]["k"] THEN
jbe@430 122 IF "matrix_p"["j"]["i"] > "matrix_p"["j"]["k"] THEN
jbe@430 123 "matrix_p"["j"]["k"] := "matrix_p"["j"]["i"];
jbe@430 124 END IF;
jbe@430 125 ELSE
jbe@430 126 IF "matrix_p"["i"]["k"] > "matrix_p"["j"]["k"] THEN
jbe@430 127 "matrix_p"["j"]["k"] := "matrix_p"["i"]["k"];
jbe@430 128 END IF;
jbe@430 129 END IF;
jbe@430 130 END IF;
jbe@430 131 EXIT WHEN "k" = "dimension_v";
jbe@430 132 "k" := "k" + 1;
jbe@430 133 END LOOP;
jbe@430 134 END IF;
jbe@430 135 EXIT WHEN "j" = "dimension_v";
jbe@430 136 "j" := "j" + 1;
jbe@430 137 END LOOP;
jbe@430 138 EXIT WHEN "i" = "dimension_v";
jbe@430 139 "i" := "i" + 1;
jbe@430 140 END LOOP;
jbe@430 141 RETURN "matrix_p";
jbe@430 142 END;
jbe@430 143 $$;
jbe@430 144
jbe@430 145 COMMENT ON FUNCTION "find_best_paths"("link_strength"[][]) IS 'Computes the strengths of the best beat-paths from a square matrix';
jbe@430 146
jbe@430 147
jbe@430 148 CREATE FUNCTION "calculate_ranks"("issue_id_p" "issue"."id"%TYPE)
jbe@430 149 RETURNS VOID
jbe@430 150 LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@430 151 DECLARE
jbe@430 152 "issue_row" "issue"%ROWTYPE;
jbe@430 153 "policy_row" "policy"%ROWTYPE;
jbe@430 154 "dimension_v" INT4;
jbe@430 155 "matrix_a" INT4[][]; -- absolute votes
jbe@430 156 "matrix_d" "link_strength"[][]; -- defeat strength (direct)
jbe@430 157 "matrix_p" "link_strength"[][]; -- defeat strength (best path)
jbe@430 158 "matrix_t" "link_strength"[][]; -- defeat strength (tie-breaking)
jbe@430 159 "matrix_f" BOOLEAN[][]; -- forbidden link (tie-breaking)
jbe@430 160 "matrix_b" BOOLEAN[][]; -- final order (who beats who)
jbe@430 161 "i" INT4;
jbe@430 162 "j" INT4;
jbe@430 163 "m" INT4;
jbe@430 164 "n" INT4;
jbe@430 165 "battle_row" "battle"%ROWTYPE;
jbe@430 166 "rank_ary" INT4[];
jbe@430 167 "rank_v" INT4;
jbe@430 168 "initiative_id_v" "initiative"."id"%TYPE;
jbe@430 169 BEGIN
jbe@430 170 PERFORM "require_transaction_isolation"();
jbe@430 171 SELECT * INTO "issue_row"
jbe@430 172 FROM "issue" WHERE "id" = "issue_id_p";
jbe@430 173 SELECT * INTO "policy_row"
jbe@430 174 FROM "policy" WHERE "id" = "issue_row"."policy_id";
jbe@430 175 SELECT count(1) INTO "dimension_v"
jbe@430 176 FROM "battle_participant" WHERE "issue_id" = "issue_id_p";
jbe@430 177 -- create "matrix_a" with absolute number of votes in pairwise
jbe@430 178 -- comparison:
jbe@430 179 "matrix_a" := array_fill(NULL::INT4, ARRAY["dimension_v", "dimension_v"]);
jbe@430 180 "i" := 1;
jbe@430 181 "j" := 2;
jbe@430 182 FOR "battle_row" IN
jbe@430 183 SELECT * FROM "battle" WHERE "issue_id" = "issue_id_p"
jbe@430 184 ORDER BY
jbe@430 185 "winning_initiative_id" NULLS FIRST,
jbe@430 186 "losing_initiative_id" NULLS FIRST
jbe@430 187 LOOP
jbe@430 188 "matrix_a"["i"]["j"] := "battle_row"."count";
jbe@430 189 IF "j" = "dimension_v" THEN
jbe@430 190 "i" := "i" + 1;
jbe@430 191 "j" := 1;
jbe@430 192 ELSE
jbe@430 193 "j" := "j" + 1;
jbe@430 194 IF "j" = "i" THEN
jbe@430 195 "j" := "j" + 1;
jbe@430 196 END IF;
jbe@430 197 END IF;
jbe@430 198 END LOOP;
jbe@430 199 IF "i" != "dimension_v" OR "j" != "dimension_v" + 1 THEN
jbe@430 200 RAISE EXCEPTION 'Wrong battle count (should not happen)';
jbe@430 201 END IF;
jbe@430 202 -- store direct defeat strengths in "matrix_d" using "defeat_strength"
jbe@430 203 -- and "secondary_link_strength" functions:
jbe@430 204 "matrix_d" := array_fill(NULL::INT8, ARRAY["dimension_v", "dimension_v"]);
jbe@430 205 "i" := 1;
jbe@430 206 LOOP
jbe@430 207 "j" := 1;
jbe@430 208 LOOP
jbe@430 209 IF "i" != "j" THEN
jbe@430 210 "matrix_d"["i"]["j"] := (
jbe@430 211 "defeat_strength"(
jbe@430 212 "matrix_a"["i"]["j"],
jbe@430 213 "matrix_a"["j"]["i"],
jbe@430 214 "policy_row"."defeat_strength"
jbe@430 215 ),
jbe@430 216 "secondary_link_strength"(
jbe@430 217 "i",
jbe@430 218 "j",
jbe@430 219 "policy_row"."tie_breaking"
jbe@430 220 )
jbe@430 221 )::"link_strength";
jbe@430 222 END IF;
jbe@430 223 EXIT WHEN "j" = "dimension_v";
jbe@430 224 "j" := "j" + 1;
jbe@430 225 END LOOP;
jbe@430 226 EXIT WHEN "i" = "dimension_v";
jbe@430 227 "i" := "i" + 1;
jbe@430 228 END LOOP;
jbe@430 229 -- find best paths:
jbe@430 230 "matrix_p" := "find_best_paths"("matrix_d");
jbe@430 231 -- create partial order:
jbe@430 232 "matrix_b" := array_fill(NULL::BOOLEAN, ARRAY["dimension_v", "dimension_v"]);
jbe@430 233 "i" := 1;
jbe@430 234 LOOP
jbe@430 235 "j" := "i" + 1;
jbe@430 236 LOOP
jbe@430 237 IF "i" != "j" THEN
jbe@430 238 IF "matrix_p"["i"]["j"] > "matrix_p"["j"]["i"] THEN
jbe@430 239 "matrix_b"["i"]["j"] := TRUE;
jbe@430 240 "matrix_b"["j"]["i"] := FALSE;
jbe@430 241 ELSIF "matrix_p"["i"]["j"] < "matrix_p"["j"]["i"] THEN
jbe@430 242 "matrix_b"["i"]["j"] := FALSE;
jbe@430 243 "matrix_b"["j"]["i"] := TRUE;
jbe@430 244 END IF;
jbe@430 245 END IF;
jbe@430 246 EXIT WHEN "j" = "dimension_v";
jbe@430 247 "j" := "j" + 1;
jbe@430 248 END LOOP;
jbe@430 249 EXIT WHEN "i" = "dimension_v" - 1;
jbe@430 250 "i" := "i" + 1;
jbe@430 251 END LOOP;
jbe@430 252 -- tie-breaking by forbidding shared weakest links in beat-paths
jbe@430 253 -- (unless "tie_breaking" is set to 'simple', in which case tie-breaking
jbe@430 254 -- is performed later by initiative id):
jbe@430 255 IF "policy_row"."tie_breaking" != 'simple'::"tie_breaking" THEN
jbe@430 256 "m" := 1;
jbe@430 257 LOOP
jbe@430 258 "n" := "m" + 1;
jbe@430 259 LOOP
jbe@430 260 -- only process those candidates m and n, which are tied:
jbe@430 261 IF "matrix_b"["m"]["n"] ISNULL THEN
jbe@430 262 -- start with beat-paths prior tie-breaking:
jbe@430 263 "matrix_t" := "matrix_p";
jbe@430 264 -- start with all links allowed:
jbe@430 265 "matrix_f" := array_fill(FALSE, ARRAY["dimension_v", "dimension_v"]);
jbe@430 266 LOOP
jbe@430 267 -- determine (and forbid) that link that is the weakest link
jbe@430 268 -- in both the best path from candidate m to candidate n and
jbe@430 269 -- from candidate n to candidate m:
jbe@430 270 "i" := 1;
jbe@430 271 <<forbid_one_link>>
jbe@430 272 LOOP
jbe@430 273 "j" := 1;
jbe@430 274 LOOP
jbe@430 275 IF "i" != "j" THEN
jbe@430 276 IF "matrix_d"["i"]["j"] = "matrix_t"["m"]["n"] THEN
jbe@430 277 "matrix_f"["i"]["j"] := TRUE;
jbe@430 278 -- exit for performance reasons,
jbe@430 279 -- as exactly one link will be found:
jbe@430 280 EXIT forbid_one_link;
jbe@430 281 END IF;
jbe@430 282 END IF;
jbe@430 283 EXIT WHEN "j" = "dimension_v";
jbe@430 284 "j" := "j" + 1;
jbe@430 285 END LOOP;
jbe@430 286 IF "i" = "dimension_v" THEN
jbe@430 287 RAISE EXCEPTION 'Did not find shared weakest link for tie-breaking (should not happen)';
jbe@430 288 END IF;
jbe@430 289 "i" := "i" + 1;
jbe@430 290 END LOOP;
jbe@430 291 -- calculate best beat-paths while ignoring forbidden links:
jbe@430 292 "i" := 1;
jbe@430 293 LOOP
jbe@430 294 "j" := 1;
jbe@430 295 LOOP
jbe@430 296 IF "i" != "j" THEN
jbe@430 297 "matrix_t"["i"]["j"] := CASE
jbe@430 298 WHEN "matrix_f"["i"]["j"]
jbe@430 299 THEN (-1::INT8) << 63 -- worst possible value
jbe@430 300 ELSE "matrix_d"["i"]["j"] END;
jbe@430 301 END IF;
jbe@430 302 EXIT WHEN "j" = "dimension_v";
jbe@430 303 "j" := "j" + 1;
jbe@430 304 END LOOP;
jbe@430 305 EXIT WHEN "i" = "dimension_v";
jbe@430 306 "i" := "i" + 1;
jbe@430 307 END LOOP;
jbe@430 308 "matrix_t" := "find_best_paths"("matrix_t");
jbe@430 309 -- extend partial order, if tie-breaking was successful:
jbe@430 310 IF "matrix_t"["m"]["n"] > "matrix_t"["n"]["m"] THEN
jbe@430 311 "matrix_b"["m"]["n"] := TRUE;
jbe@430 312 "matrix_b"["n"]["m"] := FALSE;
jbe@430 313 EXIT;
jbe@430 314 ELSIF "matrix_t"["m"]["n"] < "matrix_t"["n"]["m"] THEN
jbe@430 315 "matrix_b"["m"]["n"] := FALSE;
jbe@430 316 "matrix_b"["n"]["m"] := TRUE;
jbe@430 317 EXIT;
jbe@430 318 END IF;
jbe@430 319 END LOOP;
jbe@430 320 END IF;
jbe@430 321 EXIT WHEN "n" = "dimension_v";
jbe@430 322 "n" := "n" + 1;
jbe@430 323 END LOOP;
jbe@430 324 EXIT WHEN "m" = "dimension_v" - 1;
jbe@430 325 "m" := "m" + 1;
jbe@430 326 END LOOP;
jbe@430 327 END IF;
jbe@430 328 -- store a unique ranking in "rank_ary":
jbe@430 329 "rank_ary" := array_fill(NULL::INT4, ARRAY["dimension_v"]);
jbe@430 330 "rank_v" := 1;
jbe@430 331 LOOP
jbe@430 332 "i" := 1;
jbe@430 333 <<assign_next_rank>>
jbe@430 334 LOOP
jbe@430 335 IF "rank_ary"["i"] ISNULL THEN
jbe@430 336 "j" := 1;
jbe@430 337 LOOP
jbe@430 338 IF
jbe@430 339 "i" != "j" AND
jbe@430 340 "rank_ary"["j"] ISNULL AND
jbe@430 341 ( "matrix_b"["j"]["i"] OR
jbe@430 342 -- tie-breaking by "id"
jbe@430 343 ( "matrix_b"["j"]["i"] ISNULL AND
jbe@430 344 "j" < "i" ) )
jbe@430 345 THEN
jbe@430 346 -- someone else is better
jbe@430 347 EXIT;
jbe@430 348 END IF;
jbe@430 349 IF "j" = "dimension_v" THEN
jbe@430 350 -- noone is better
jbe@430 351 "rank_ary"["i"] := "rank_v";
jbe@430 352 EXIT assign_next_rank;
jbe@430 353 END IF;
jbe@430 354 "j" := "j" + 1;
jbe@430 355 END LOOP;
jbe@430 356 END IF;
jbe@430 357 "i" := "i" + 1;
jbe@430 358 IF "i" > "dimension_v" THEN
jbe@430 359 RAISE EXCEPTION 'Schulze ranking does not compute (should not happen)';
jbe@430 360 END IF;
jbe@430 361 END LOOP;
jbe@430 362 EXIT WHEN "rank_v" = "dimension_v";
jbe@430 363 "rank_v" := "rank_v" + 1;
jbe@430 364 END LOOP;
jbe@430 365 -- write preliminary results:
jbe@430 366 "i" := 2; -- omit status quo with "i" = 1
jbe@430 367 FOR "initiative_id_v" IN
jbe@430 368 SELECT "id" FROM "initiative"
jbe@430 369 WHERE "issue_id" = "issue_id_p" AND "admitted"
jbe@430 370 ORDER BY "id"
jbe@430 371 LOOP
jbe@430 372 UPDATE "initiative" SET
jbe@430 373 "direct_majority" =
jbe@430 374 CASE WHEN "policy_row"."direct_majority_strict" THEN
jbe@430 375 "positive_votes" * "policy_row"."direct_majority_den" >
jbe@430 376 "policy_row"."direct_majority_num" * ("positive_votes"+"negative_votes")
jbe@430 377 ELSE
jbe@430 378 "positive_votes" * "policy_row"."direct_majority_den" >=
jbe@430 379 "policy_row"."direct_majority_num" * ("positive_votes"+"negative_votes")
jbe@430 380 END
jbe@430 381 AND "positive_votes" >= "policy_row"."direct_majority_positive"
jbe@430 382 AND "issue_row"."voter_count"-"negative_votes" >=
jbe@430 383 "policy_row"."direct_majority_non_negative",
jbe@430 384 "indirect_majority" =
jbe@430 385 CASE WHEN "policy_row"."indirect_majority_strict" THEN
jbe@430 386 "positive_votes" * "policy_row"."indirect_majority_den" >
jbe@430 387 "policy_row"."indirect_majority_num" * ("positive_votes"+"negative_votes")
jbe@430 388 ELSE
jbe@430 389 "positive_votes" * "policy_row"."indirect_majority_den" >=
jbe@430 390 "policy_row"."indirect_majority_num" * ("positive_votes"+"negative_votes")
jbe@430 391 END
jbe@430 392 AND "positive_votes" >= "policy_row"."indirect_majority_positive"
jbe@430 393 AND "issue_row"."voter_count"-"negative_votes" >=
jbe@430 394 "policy_row"."indirect_majority_non_negative",
jbe@430 395 "schulze_rank" = "rank_ary"["i"],
jbe@430 396 "better_than_status_quo" = "rank_ary"["i"] < "rank_ary"[1],
jbe@430 397 "worse_than_status_quo" = "rank_ary"["i"] > "rank_ary"[1],
jbe@430 398 "multistage_majority" = "rank_ary"["i"] >= "rank_ary"[1],
jbe@430 399 "reverse_beat_path" = CASE WHEN "policy_row"."defeat_strength" = 'simple'::"defeat_strength"
jbe@430 400 THEN NULL
jbe@430 401 ELSE "matrix_p"[1]["i"]."primary" >= 0 END,
jbe@430 402 "eligible" = FALSE,
jbe@430 403 "winner" = FALSE,
jbe@430 404 "rank" = NULL -- NOTE: in cases of manual reset of issue state
jbe@430 405 WHERE "id" = "initiative_id_v";
jbe@430 406 "i" := "i" + 1;
jbe@430 407 END LOOP;
jbe@430 408 IF "i" != "dimension_v" + 1 THEN
jbe@430 409 RAISE EXCEPTION 'Wrong winner count (should not happen)';
jbe@430 410 END IF;
jbe@430 411 -- take indirect majorities into account:
jbe@430 412 LOOP
jbe@430 413 UPDATE "initiative" SET "indirect_majority" = TRUE
jbe@430 414 FROM (
jbe@430 415 SELECT "new_initiative"."id" AS "initiative_id"
jbe@430 416 FROM "initiative" "old_initiative"
jbe@430 417 JOIN "initiative" "new_initiative"
jbe@430 418 ON "new_initiative"."issue_id" = "issue_id_p"
jbe@430 419 AND "new_initiative"."indirect_majority" = FALSE
jbe@430 420 JOIN "battle" "battle_win"
jbe@430 421 ON "battle_win"."issue_id" = "issue_id_p"
jbe@430 422 AND "battle_win"."winning_initiative_id" = "new_initiative"."id"
jbe@430 423 AND "battle_win"."losing_initiative_id" = "old_initiative"."id"
jbe@430 424 JOIN "battle" "battle_lose"
jbe@430 425 ON "battle_lose"."issue_id" = "issue_id_p"
jbe@430 426 AND "battle_lose"."losing_initiative_id" = "new_initiative"."id"
jbe@430 427 AND "battle_lose"."winning_initiative_id" = "old_initiative"."id"
jbe@430 428 WHERE "old_initiative"."issue_id" = "issue_id_p"
jbe@430 429 AND "old_initiative"."indirect_majority" = TRUE
jbe@430 430 AND CASE WHEN "policy_row"."indirect_majority_strict" THEN
jbe@430 431 "battle_win"."count" * "policy_row"."indirect_majority_den" >
jbe@430 432 "policy_row"."indirect_majority_num" *
jbe@430 433 ("battle_win"."count"+"battle_lose"."count")
jbe@430 434 ELSE
jbe@430 435 "battle_win"."count" * "policy_row"."indirect_majority_den" >=
jbe@430 436 "policy_row"."indirect_majority_num" *
jbe@430 437 ("battle_win"."count"+"battle_lose"."count")
jbe@430 438 END
jbe@430 439 AND "battle_win"."count" >= "policy_row"."indirect_majority_positive"
jbe@430 440 AND "issue_row"."voter_count"-"battle_lose"."count" >=
jbe@430 441 "policy_row"."indirect_majority_non_negative"
jbe@430 442 ) AS "subquery"
jbe@430 443 WHERE "id" = "subquery"."initiative_id";
jbe@430 444 EXIT WHEN NOT FOUND;
jbe@430 445 END LOOP;
jbe@430 446 -- set "multistage_majority" for remaining matching initiatives:
jbe@430 447 UPDATE "initiative" SET "multistage_majority" = TRUE
jbe@430 448 FROM (
jbe@430 449 SELECT "losing_initiative"."id" AS "initiative_id"
jbe@430 450 FROM "initiative" "losing_initiative"
jbe@430 451 JOIN "initiative" "winning_initiative"
jbe@430 452 ON "winning_initiative"."issue_id" = "issue_id_p"
jbe@430 453 AND "winning_initiative"."admitted"
jbe@430 454 JOIN "battle" "battle_win"
jbe@430 455 ON "battle_win"."issue_id" = "issue_id_p"
jbe@430 456 AND "battle_win"."winning_initiative_id" = "winning_initiative"."id"
jbe@430 457 AND "battle_win"."losing_initiative_id" = "losing_initiative"."id"
jbe@430 458 JOIN "battle" "battle_lose"
jbe@430 459 ON "battle_lose"."issue_id" = "issue_id_p"
jbe@430 460 AND "battle_lose"."losing_initiative_id" = "winning_initiative"."id"
jbe@430 461 AND "battle_lose"."winning_initiative_id" = "losing_initiative"."id"
jbe@430 462 WHERE "losing_initiative"."issue_id" = "issue_id_p"
jbe@430 463 AND "losing_initiative"."admitted"
jbe@430 464 AND "winning_initiative"."schulze_rank" <
jbe@430 465 "losing_initiative"."schulze_rank"
jbe@430 466 AND "battle_win"."count" > "battle_lose"."count"
jbe@430 467 AND (
jbe@430 468 "battle_win"."count" > "winning_initiative"."positive_votes" OR
jbe@430 469 "battle_lose"."count" < "losing_initiative"."negative_votes" )
jbe@430 470 ) AS "subquery"
jbe@430 471 WHERE "id" = "subquery"."initiative_id";
jbe@430 472 -- mark eligible initiatives:
jbe@430 473 UPDATE "initiative" SET "eligible" = TRUE
jbe@430 474 WHERE "issue_id" = "issue_id_p"
jbe@430 475 AND "initiative"."direct_majority"
jbe@430 476 AND "initiative"."indirect_majority"
jbe@430 477 AND "initiative"."better_than_status_quo"
jbe@430 478 AND (
jbe@430 479 "policy_row"."no_multistage_majority" = FALSE OR
jbe@430 480 "initiative"."multistage_majority" = FALSE )
jbe@430 481 AND (
jbe@430 482 "policy_row"."no_reverse_beat_path" = FALSE OR
jbe@430 483 coalesce("initiative"."reverse_beat_path", FALSE) = FALSE );
jbe@430 484 -- mark final winner:
jbe@430 485 UPDATE "initiative" SET "winner" = TRUE
jbe@430 486 FROM (
jbe@430 487 SELECT "id" AS "initiative_id"
jbe@430 488 FROM "initiative"
jbe@430 489 WHERE "issue_id" = "issue_id_p" AND "eligible"
jbe@430 490 ORDER BY
jbe@430 491 "schulze_rank",
jbe@430 492 "id"
jbe@430 493 LIMIT 1
jbe@430 494 ) AS "subquery"
jbe@430 495 WHERE "id" = "subquery"."initiative_id";
jbe@430 496 -- write (final) ranks:
jbe@430 497 "rank_v" := 1;
jbe@430 498 FOR "initiative_id_v" IN
jbe@430 499 SELECT "id"
jbe@430 500 FROM "initiative"
jbe@430 501 WHERE "issue_id" = "issue_id_p" AND "admitted"
jbe@430 502 ORDER BY
jbe@430 503 "winner" DESC,
jbe@430 504 "eligible" DESC,
jbe@430 505 "schulze_rank",
jbe@430 506 "id"
jbe@430 507 LOOP
jbe@430 508 UPDATE "initiative" SET "rank" = "rank_v"
jbe@430 509 WHERE "id" = "initiative_id_v";
jbe@430 510 "rank_v" := "rank_v" + 1;
jbe@430 511 END LOOP;
jbe@430 512 -- set schulze rank of status quo and mark issue as finished:
jbe@430 513 UPDATE "issue" SET
jbe@430 514 "status_quo_schulze_rank" = "rank_ary"[1],
jbe@430 515 "state" =
jbe@430 516 CASE WHEN EXISTS (
jbe@430 517 SELECT NULL FROM "initiative"
jbe@430 518 WHERE "issue_id" = "issue_id_p" AND "winner"
jbe@430 519 ) THEN
jbe@430 520 'finished_with_winner'::"issue_state"
jbe@430 521 ELSE
jbe@430 522 'finished_without_winner'::"issue_state"
jbe@430 523 END,
jbe@430 524 "closed" = "phase_finished",
jbe@430 525 "phase_finished" = NULL
jbe@430 526 WHERE "id" = "issue_id_p";
jbe@430 527 RETURN;
jbe@430 528 END;
jbe@430 529 $$;
jbe@430 530
jbe@423 531
jbe@423 532 COMMIT;

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