halkyon/apps/learn/halkyon_learn_server/migrations/20261002211346701-learning-paths/migration.sql

BEGIN;

--
-- Function: gen_random_uuid_v7()
-- Source: https://gist.github.com/kjmph/5bd772b2c2df145aa645b837da7eca74
-- License: MIT (copyright notice included on the generator source code).
--
create or replace function gen_random_uuid_v7()
returns uuid
as $$
begin
  -- use random v4 uuid as starting point (which has the same variant we need)
  -- then overlay timestamp
  -- then set version 7 by flipping the 2 and 1 bit in the version 4 string
  return encode(
    set_bit(
      set_bit(
        overlay(uuid_send(gen_random_uuid())
                placing substring(int8send(floor(extract(epoch from clock_timestamp()) * 1000)::bigint) from 3)
                from 1 for 6
        ),
        52, 1
      ),
      53, 1
    ),
    'hex')::uuid;
end
$$
language plpgsql
volatile;

--
-- ACTION CREATE TABLE
--
CREATE TABLE "learning_path" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "studysetId" uuid NOT NULL,
    "position" text NOT NULL,
    "keyId" text,
    "payload" bytea NOT NULL,
    "nonce" bytea
);

-- Indexes
CREATE INDEX "learning_path_space_idx" ON "learning_path" USING btree ("spaceId");
CREATE INDEX "learning_path_studyset_idx" ON "learning_path" USING btree ("studysetId", "position");

--
-- ACTION CREATE TABLE
--
CREATE TABLE "learning_path_answer" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "stepId" uuid NOT NULL,
    "answeredAt" timestamp without time zone NOT NULL,
    "outcome" text NOT NULL,
    "answer" text
);

-- Indexes
CREATE INDEX "learning_path_answer_space_idx" ON "learning_path_answer" USING btree ("spaceId");
CREATE INDEX "learning_path_answer_step_idx" ON "learning_path_answer" USING btree ("stepId", "answeredAt");

--
-- ACTION CREATE TABLE
--
CREATE TABLE "learning_path_step" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "pathId" uuid NOT NULL,
    "position" text NOT NULL,
    "kind" text NOT NULL
);

-- Indexes
CREATE INDEX "learning_path_step_space_idx" ON "learning_path_step" USING btree ("spaceId");
CREATE INDEX "learning_path_step_path_idx" ON "learning_path_step" USING btree ("pathId", "position");

--
-- ACTION CREATE TABLE
--
CREATE TABLE "learning_path_step_revision" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "stepId" uuid NOT NULL,
    "parents" json NOT NULL,
    "authorId" uuid NOT NULL,
    "reportId" uuid,
    "keyId" text,
    "payload" bytea NOT NULL,
    "nonce" bytea
);

-- Indexes
CREATE INDEX "learning_path_step_revision_space_idx" ON "learning_path_step_revision" USING btree ("spaceId");
CREATE INDEX "learning_path_step_revision_step_idx" ON "learning_path_step_revision" USING btree ("stepId");

--
-- ACTION CREATE TABLE
--
CREATE TABLE "learning_path_tag" (
    "id" uuid PRIMARY KEY DEFAULT gen_random_uuid_v7(),
    "spaceId" bigint,
    "pathId" uuid NOT NULL,
    "tagId" uuid NOT NULL
);

-- Indexes
CREATE INDEX "learning_path_tag_space_idx" ON "learning_path_tag" USING btree ("spaceId");
CREATE INDEX "learning_path_tag_path_idx" ON "learning_path_tag" USING btree ("pathId");
CREATE INDEX "learning_path_tag_tag_idx" ON "learning_path_tag" USING btree ("tagId");

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "learning_path"
    ADD CONSTRAINT "learning_path_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "learning_path"
    ADD CONSTRAINT "learning_path_fk_1"
    FOREIGN KEY("studysetId")
    REFERENCES "studyset"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "learning_path_answer"
    ADD CONSTRAINT "learning_path_answer_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "learning_path_answer"
    ADD CONSTRAINT "learning_path_answer_fk_1"
    FOREIGN KEY("stepId")
    REFERENCES "learning_path_step"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "learning_path_step"
    ADD CONSTRAINT "learning_path_step_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "learning_path_step"
    ADD CONSTRAINT "learning_path_step_fk_1"
    FOREIGN KEY("pathId")
    REFERENCES "learning_path"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "learning_path_step_revision"
    ADD CONSTRAINT "learning_path_step_revision_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "learning_path_step_revision"
    ADD CONSTRAINT "learning_path_step_revision_fk_1"
    FOREIGN KEY("stepId")
    REFERENCES "learning_path_step"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;

--
-- ACTION CREATE FOREIGN KEY
--
ALTER TABLE ONLY "learning_path_tag"
    ADD CONSTRAINT "learning_path_tag_fk_0"
    FOREIGN KEY("spaceId")
    REFERENCES "offline_sync_spaces"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION;
ALTER TABLE ONLY "learning_path_tag"
    ADD CONSTRAINT "learning_path_tag_fk_1"
    FOREIGN KEY("pathId")
    REFERENCES "learning_path"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;
ALTER TABLE ONLY "learning_path_tag"
    ADD CONSTRAINT "learning_path_tag_fk_2"
    FOREIGN KEY("tagId")
    REFERENCES "tag"("id")
    ON DELETE CASCADE
    ON UPDATE NO ACTION
    DEFERRABLE INITIALLY DEFERRED;


--
-- MIGRATION VERSION FOR halkyon_learn
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('halkyon_learn', '20261002211346701-learning-paths', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20261002211346701-learning-paths', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod', '20260824182259319', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260824182259319', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_auth_idp
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_auth_idp', '20260924105404509', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260924105404509', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_offline_sync
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_offline_sync', '20260914143806119', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260914143806119', "timestamp" = now();

--
-- MIGRATION VERSION FOR serverpod_auth_core
--
INSERT INTO "serverpod_migrations" ("module", "version", "timestamp")
    VALUES ('serverpod_auth_core', '20260924105232991', now())
    ON CONFLICT ("module")
    DO UPDATE SET "version" = '20260924105232991', "timestamp" = now();


COMMIT;