52 lines
1.4 KiB
PL/PgSQL
52 lines
1.4 KiB
PL/PgSQL
-- Add migration script here
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CREATE TABLE "post" (
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"id" SERIAL PRIMARY KEY NOT NULL,
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"title" TEXT NOT NULL,
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"description" TEXT NOT NULL,
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"preview_image_url" TEXT NOT NULL,
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"content" TEXT NOT NULL,
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"published_time" TIMESTAMP,
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"deleted_time" TIMESTAMP,
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"created_time" TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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"updated_time" TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE "label" (
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"id" SERIAL PRIMARY KEY NOT NULL,
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"name" TEXT NOT NULL,
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"color" BIGINT NOT NULL CHECK ("color" >= 0 AND "color" <= 4294967295),
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"deleted_time" TIMESTAMP,
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"created_time" TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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"updated_time" TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE "post_label" (
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"post_id" INTEGER NOT NULL,
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"label_id" INTEGER NOT NULL,
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PRIMARY KEY ("post_id", "label_id"),
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FOREIGN KEY ("post_id") REFERENCES "post" ("id") ON DELETE CASCADE,
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FOREIGN KEY ("label_id") REFERENCES "label" ("id") ON DELETE CASCADE
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);
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-- Auto update `updated_time` trigger
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CREATE FUNCTION update_updated_time_column() RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_time = CURRENT_TIMESTAMP;
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return NEW;
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END;
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$$ LANGUAGE 'plpgsql';
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CREATE TRIGGER "update_post_updated_time"
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BEFORE UPDATE ON "post"
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_time_column();
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CREATE TRIGGER "update_label_updated_time"
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BEFORE UPDATE ON "label"
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FOR EACH ROW
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EXECUTE FUNCTION update_updated_time_column();
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