jbe@478: BEGIN;
jbe@478: 
jbe@478: CREATE OR REPLACE VIEW "liquid_feedback_version" AS
jbe@478:   SELECT * FROM (VALUES ('3.2.0', 3, 2, 0))
jbe@478:   AS "subquery"("string", "major", "minor", "revision");
jbe@478: 
jbe@478: ALTER TABLE "member" ADD COLUMN "disable_notifications" BOOLEAN NOT NULL DEFAULT FALSE;
jbe@492: ALTER TABLE "member" ADD COLUMN "notification_counter" INT4 NOT NULL DEFAULT 1;
jbe@492: ALTER TABLE "member" ADD COLUMN "notification_sample_size" INT4 NOT NULL DEFAULT 3;
jbe@492: ALTER TABLE "member" ADD COLUMN "notification_dow" INT4 CHECK ("notification_dow" BETWEEN 0 AND 6);
jbe@492: ALTER TABLE "member" ADD COLUMN "notification_hour" INT4 CHECK ("notification_hour" BETWEEN 0 AND 23);
jbe@478: 
jbe@478: UPDATE "member" SET "disable_notifications" = TRUE WHERE "notify_level" = 'none';
jbe@478:  
jbe@478: CREATE TABLE "subscription" (
jbe@478:         PRIMARY KEY ("member_id", "unit_id"),
jbe@478:         "member_id"             INT4            REFERENCES "member" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
jbe@478:         "unit_id"               INT4            REFERENCES "unit" ("id") ON DELETE CASCADE ON UPDATE CASCADE );
jbe@478: CREATE INDEX "subscription_unit_id_idx" ON "subscription" ("unit_id");
jbe@492: 
jbe@492: COMMENT ON TABLE "subscription" IS 'An entry in this table denotes that the member wishes to receive notifications regardless of his/her privileges in the given unit';
jbe@492: 
jbe@492: CREATE TABLE "ignored_area" (
jbe@492:         PRIMARY KEY ("member_id", "area_id"),
jbe@492:         "member_id"             INT4            REFERENCES "unit" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
jbe@492:         "area_id"               INT4            REFERENCES "area" ("id") ON DELETE CASCADE ON UPDATE CASCADE );
jbe@492: CREATE INDEX "ignored_area_area_id_idx" ON "ignored_area" ("area_id");
jbe@492: 
jbe@492: COMMENT ON TABLE "ignored_area" IS 'An entry in this table denotes that the member does not wish to receive notifications for the given subject area unless he/she declared interested in a particular issue';
jbe@492: 
jbe@492: CREATE TABLE "initiative_notification_sent" (
jbe@492:         PRIMARY KEY ("member_id", "initiative_id"),
jbe@492:         "member_id"             INT4            REFERENCES "member" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
jbe@492:         "initiative_id"         INT4            REFERENCES "initiative" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
jbe@492:         "last_draft_id"         INT8            NOT NULL,
jbe@495:         "last_suggestion_id"    INT8 );
jbe@492: CREATE INDEX "initiative_notification_sent_initiative_idx" ON "initiative_notification_sent" ("initiative_id");
jbe@478: 
jbe@478: CREATE VIEW "updated_initiative" AS
jbe@478:   SELECT
jbe@492:     "supporter"."member_id" AS "seen_by_member_id",
jbe@478:     TRUE AS "supported",
jbe@478:     EXISTS (
jbe@478:       SELECT NULL FROM "draft"
jbe@478:       WHERE "draft"."initiative_id" = "initiative"."id"
jbe@478:       AND "draft"."id" > "supporter"."draft_id"
jbe@478:     ) AS "new_draft",
jbe@478:     ( SELECT count(1) FROM "suggestion"
jbe@492:       LEFT JOIN "opinion" ON
jbe@492:         "opinion"."member_id" = "supporter"."member_id" AND
jbe@492:         "opinion"."suggestion_id" = "suggestion"."id"
jbe@478:       WHERE "suggestion"."initiative_id" = "initiative"."id"
jbe@492:       AND "opinion"."member_id" ISNULL
jbe@478:       AND COALESCE(
jbe@492:         "suggestion"."id" > "sent"."last_suggestion_id",
jbe@478:         TRUE
jbe@478:       )
jbe@478:     ) AS "new_suggestion_count",
jbe@478:     FALSE AS "featured",
jbe@478:     NOT EXISTS (
jbe@478:       SELECT NULL FROM "initiative" AS "better_initiative"
jbe@478:       WHERE
jbe@484:         "better_initiative"."issue_id" = "initiative"."issue_id"
jbe@484:       AND
jbe@484:         ( COALESCE("better_initiative"."harmonic_weight", -1),
jbe@484:           -"better_initiative"."id" ) >
jbe@484:         ( COALESCE("initiative"."harmonic_weight", -1),
jbe@485:           -"initiative"."id" )
jbe@478:     ) AS "leading",
jbe@478:     "initiative".*
jbe@492:   FROM "supporter" JOIN "initiative"
jbe@492:   ON "supporter"."initiative_id" = "initiative"."id"
jbe@492:   LEFT JOIN "initiative_notification_sent" AS "sent"
jbe@492:     ON "sent"."member_id" = "supporter"."member_id"
jbe@492:     AND "sent"."initiative_id" = "initiative"."id"
jbe@478:   JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
jbe@480:   WHERE "issue"."state" IN ('admission', 'discussion')
jbe@478:   AND (
jbe@478:     EXISTS (
jbe@478:       SELECT NULL FROM "draft"
jbe@478:       WHERE "draft"."initiative_id" = "initiative"."id"
jbe@478:       AND "draft"."id" > "supporter"."draft_id"
jbe@478:     ) OR EXISTS (
jbe@478:       SELECT NULL FROM "suggestion"
jbe@492:       LEFT JOIN "opinion" ON
jbe@492:         "opinion"."member_id" = "supporter"."member_id" AND
jbe@492:         "opinion"."suggestion_id" = "suggestion"."id"
jbe@478:       WHERE "suggestion"."initiative_id" = "initiative"."id"
jbe@492:       AND "opinion"."member_id" ISNULL
jbe@478:       AND COALESCE(
jbe@492:         "suggestion"."id" > "sent"."last_suggestion_id",
jbe@478:         TRUE
jbe@478:       )
jbe@478:     )
jbe@478:   );
jbe@478: 
jbe@478: CREATE FUNCTION "featured_initiative"
jbe@478:   ( "member_id_p" "member"."id"%TYPE,
jbe@478:     "area_id_p"   "area"."id"%TYPE )
jbe@478:   RETURNS SETOF "initiative"
jbe@478:   LANGUAGE 'plpgsql' STABLE AS $$
jbe@478:     DECLARE
jbe@482:       "member_row"        "member"%ROWTYPE;
jbe@478:       "member_id_v"       "member"."id"%TYPE;
jbe@478:       "seed_v"            TEXT;
jbe@478:       "result_row"        "initiative"%ROWTYPE;
jbe@478:       "match_v"           BOOLEAN;
jbe@478:       "initiative_id_ary" INT4[];  --"initiative"."id"%TYPE[]
jbe@478:     BEGIN
jbe@482:       SELECT INTO "member_row" * FROM "member" WHERE "id" = "member_id_p";
jbe@478:       "initiative_id_ary" := '{}';
jbe@478:       LOOP
jbe@478:         "match_v" := FALSE;
jbe@478:         FOR "member_id_v", "seed_v" IN
jbe@478:           SELECT * FROM (
jbe@478:             SELECT DISTINCT
jbe@478:               "supporter"."member_id",
jbe@482:               md5("member_id_p" || '-' || "member_row"."notification_counter" || '-' || "area_id_p" || '-' || "supporter"."member_id") AS "seed"
jbe@478:             FROM "supporter"
jbe@478:             JOIN "member" ON "member"."id" = "supporter"."member_id"
jbe@478:             JOIN "initiative" ON "initiative"."id" = "supporter"."initiative_id"
jbe@478:             JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
jbe@478:             WHERE "supporter"."member_id" != "member_id_p"
jbe@478:             AND "issue"."area_id" = "area_id_p"
jbe@478:             AND "issue"."state" IN ('admission', 'discussion', 'verification')
jbe@478:           ) AS "subquery"
jbe@478:           ORDER BY "seed"
jbe@478:         LOOP
jbe@478:           SELECT "initiative".* INTO "result_row"
jbe@478:             FROM "initiative"
jbe@478:             JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
jbe@478:             JOIN "supporter" ON "supporter"."initiative_id" = "initiative"."id"
jbe@478:             LEFT JOIN "supporter" AS "self_support" ON
jbe@478:               "self_support"."initiative_id" = "initiative"."id" AND
jbe@478:               "self_support"."member_id" = "member_id_p"
jbe@478:             WHERE "supporter"."member_id" = "member_id_v"
jbe@478:             AND "issue"."area_id" = "area_id_p"
jbe@478:             AND "issue"."state" IN ('admission', 'discussion', 'verification')
jbe@478:             AND "self_support"."member_id" ISNULL
jbe@478:             AND NOT "initiative_id_ary" @> ARRAY["initiative"."id"]
jbe@478:             ORDER BY md5("seed_v" || '-' || "initiative"."id")
jbe@478:             LIMIT 1;
jbe@478:           IF FOUND THEN
jbe@478:             "match_v" := TRUE;
jbe@478:             "initiative_id_ary" := "initiative_id_ary" || "result_row"."id";
jbe@478:             RETURN NEXT "result_row";
jbe@492:             IF array_length("initiative_id_ary", 1) >= "member_row"."notification_sample_size" THEN
jbe@478:               RETURN;
jbe@478:             END IF;
jbe@478:           END IF;
jbe@478:         END LOOP;
jbe@478:         EXIT WHEN NOT "match_v";
jbe@478:       END LOOP;
jbe@478:       RETURN;
jbe@478:     END;
jbe@478:   $$;
jbe@478: 
jbe@478: CREATE VIEW "updated_or_featured_initiative" AS
jbe@478:   SELECT * FROM "updated_initiative"
jbe@478:   UNION ALL
jbe@478:   SELECT
jbe@478:     "member"."id" AS "seen_by_member_id",
jbe@478:     FALSE AS "supported",
jbe@492:     EXISTS (
jbe@492:       SELECT NULL FROM "draft"
jbe@492:       WHERE "draft"."initiative_id" = "initiative"."id"
jbe@492:       AND COALESCE(
jbe@492:         "draft"."id" > "sent"."last_draft_id",
jbe@492:         TRUE
jbe@492:       )
jbe@492:     ) AS "new_draft",
jbe@492:     ( SELECT count(1) FROM "suggestion"
jbe@492:       WHERE "suggestion"."initiative_id" = "initiative"."id"
jbe@492:       AND COALESCE(
jbe@492:         "suggestion"."id" > "sent"."last_suggestion_id",
jbe@492:         TRUE
jbe@492:       )
jbe@492:     ) AS "new_suggestion_count",
jbe@478:     TRUE AS "featured",
jbe@478:     NOT EXISTS (
jbe@478:       SELECT NULL FROM "initiative" AS "better_initiative"
jbe@478:       WHERE
jbe@484:         "better_initiative"."issue_id" = "initiative"."issue_id"
jbe@484:       AND
jbe@484:         ( COALESCE("better_initiative"."harmonic_weight", -1),
jbe@484:           -"better_initiative"."id" ) >
jbe@484:         ( COALESCE("initiative"."harmonic_weight", -1),
jbe@485:           -"initiative"."id" )
jbe@478:     ) AS "leading",
jbe@478:     "initiative".*
jbe@478:   FROM "member" CROSS JOIN "area"
jbe@478:   CROSS JOIN LATERAL
jbe@492:     "featured_initiative"("member"."id", "area"."id") AS "initiative"
jbe@492:   LEFT JOIN "initiative_notification_sent" AS "sent"
jbe@492:     ON "sent"."member_id" = "member"."id"
jbe@492:     AND "sent"."initiative_id" = "initiative"."id";
jbe@478: 
jbe@478: CREATE VIEW "leading_complement_initiative" AS
jbe@478:   SELECT * FROM (
jbe@478:     SELECT DISTINCT ON ("seen_by_member_id", "initiative"."issue_id")
jbe@492:       "uf_initiative"."seen_by_member_id",
jbe@492:       "supporter"."member_id" NOTNULL AS "supported",
jbe@492:       CASE WHEN "supporter"."member_id" NOTNULL THEN FALSE ELSE
jbe@492:         EXISTS (
jbe@492:           SELECT NULL FROM "draft"
jbe@492:           WHERE "draft"."initiative_id" = "initiative"."id"
jbe@492:           AND COALESCE(
jbe@492:             "draft"."id" > "sent"."last_draft_id",
jbe@492:             TRUE
jbe@492:           )
jbe@492:         )
jbe@492:       END AS "new_draft",
jbe@492:       CASE WHEN "supporter"."member_id" NOTNULL THEN 0 ELSE
jbe@492:         ( SELECT count(1) FROM "suggestion"
jbe@492:           WHERE "suggestion"."initiative_id" = "initiative"."id"
jbe@492:           AND COALESCE(
jbe@492:             "suggestion"."id" > "sent"."last_suggestion_id",
jbe@492:             TRUE
jbe@492:           )
jbe@492:         )
jbe@492:       END AS "new_suggestion_count",
jbe@478:       FALSE AS "featured",
jbe@478:       TRUE AS "leading",
jbe@478:       "initiative".*
jbe@492:     FROM "updated_or_featured_initiative" AS "uf_initiative"
jbe@492:     JOIN "initiative" ON
jbe@492:       "uf_initiative"."issue_id" = "initiative"."issue_id"
jbe@492:     LEFT JOIN "supporter" ON
jbe@492:       "supporter"."member_id" = "uf_initiative"."seen_by_member_id" AND
jbe@492:       "supporter"."initiative_id" = "initiative"."id"
jbe@492:     LEFT JOIN "initiative_notification_sent" AS "sent"
jbe@492:       ON "sent"."member_id" = "uf_initiative"."seen_by_member_id"
jbe@492:       AND "sent"."initiative_id" = "initiative"."id"
jbe@478:     ORDER BY
jbe@478:       "seen_by_member_id",
jbe@478:       "initiative"."issue_id",
jbe@478:       "initiative"."harmonic_weight" DESC,
jbe@478:       "initiative"."id"
jbe@478:   ) AS "subquery"
jbe@478:   WHERE NOT EXISTS (
jbe@478:     SELECT NULL FROM "updated_or_featured_initiative" AS "other"
jbe@478:     WHERE "other"."seen_by_member_id" = "subquery"."seen_by_member_id"
jbe@478:     AND "other"."id" = "subquery"."id"
jbe@478:   );
jbe@478: 
jbe@492: CREATE VIEW "unfiltered_initiative_for_notification" AS
jbe@478:   SELECT * FROM "updated_or_featured_initiative"
jbe@478:   UNION ALL
jbe@478:   SELECT * FROM "leading_complement_initiative";
jbe@478: 
jbe@492: CREATE VIEW "initiative_for_notification" AS
jbe@492:   SELECT "initiative1".*
jbe@492:   FROM "unfiltered_initiative_for_notification" "initiative1"
jbe@492:   JOIN "issue" AS "issue1" ON "initiative1"."issue_id" = "issue1"."id"
jbe@492:   WHERE EXISTS (
jbe@492:     SELECT NULL
jbe@492:     FROM "unfiltered_initiative_for_notification" "initiative2"
jbe@492:     JOIN "issue" AS "issue2" ON "initiative2"."issue_id" = "issue2"."id"
jbe@492:     WHERE "initiative1"."seen_by_member_id" = "initiative2"."seen_by_member_id"
jbe@492:     AND "issue1"."area_id" = "issue2"."area_id"
jbe@492:     AND ( "initiative2"."new_draft" OR "initiative2"."new_suggestion_count" > 0 )
jbe@492:   );
jbe@492: 
jbe@492: CREATE FUNCTION "get_initiatives_for_notification"
jbe@492:   ( "member_id_p" "member"."id"%TYPE )
jbe@492:   RETURNS SETOF "initiative_for_notification"
jbe@492:   LANGUAGE 'plpgsql' VOLATILE AS $$
jbe@492:     DECLARE
jbe@492:       "result_row"           "initiative_for_notification"%ROWTYPE;
jbe@492:       "last_draft_id_v"      "draft"."id"%TYPE;
jbe@492:       "last_suggestion_id_v" "suggestion"."id"%TYPE;
jbe@492:     BEGIN
jbe@492:       PERFORM "require_transaction_isolation"();
jbe@492:       PERFORM NULL FROM "member" WHERE "id" = "member_id_p" FOR UPDATE;
jbe@492:       FOR "result_row" IN
jbe@492:         SELECT * FROM "initiative_for_notification"
jbe@492:         WHERE "seen_by_member_id" = "member_id_p"
jbe@492:       LOOP
jbe@492:         SELECT "id" INTO "last_draft_id_v" FROM "draft"
jbe@492:           WHERE "draft"."initiative_id" = "result_row"."id"
jbe@492:           ORDER BY "id" DESC LIMIT 1;
jbe@492:         SELECT "id" INTO "last_suggestion_id_v" FROM "suggestion"
jbe@492:           WHERE "suggestion"."initiative_id" = "result_row"."id"
jbe@492:           ORDER BY "id" DESC LIMIT 1;
jbe@492:         INSERT INTO "initiative_notification_sent"
jbe@492:           ("member_id", "initiative_id", "last_draft_id", "last_suggestion_id")
jbe@492:           VALUES (
jbe@492:             "member_id_p",
jbe@492:             "result_row"."id",
jbe@493:             "last_draft_id_v",
jbe@493:             "last_suggestion_id_v" )
jbe@492:           ON CONFLICT ("member_id", "initiative_id") DO UPDATE SET
jbe@492:             "last_draft_id" = CASE
jbe@494:               WHEN "initiative_notification_sent"."last_draft_id" > "last_draft_id_v"
jbe@494:               THEN "initiative_notification_sent"."last_draft_id"
jbe@492:               ELSE "last_draft_id_v"
jbe@492:             END,
jbe@492:             "last_suggestion_id" = CASE
jbe@494:               WHEN "initiative_notification_sent"."last_suggestion_id" > "last_suggestion_id_v"
jbe@494:               THEN "initiative_notification_sent"."last_suggestion_id"
jbe@492:               ELSE "last_suggestion_id_v"
jbe@492:             END;
jbe@492:         RETURN NEXT "result_row";
jbe@492:       END LOOP;
jbe@492:       DELETE FROM "initiative_notification_sent"
jbe@492:         USING "initiative", "issue"
jbe@492:         WHERE "initiative_notification_sent"."member_id" = "member_id_p"
jbe@492:         AND "initiative"."id" = "initiative_notification_sent"."initiative_id"
jbe@492:         AND "issue"."id" = "initiative"."issue_id"
jbe@492:         AND ( "issue"."closed" NOTNULL OR "issue"."fully_frozen" NOTNULL );
jbe@492:       UPDATE "member" SET "notification_counter" = "notification_counter" + 1
jbe@492:         WHERE "id" = "member_id_p";
jbe@492:       RETURN;
jbe@492:     END;
jbe@492:   $$;
jbe@492: 
jbe@478: COMMIT;