29 lines
1.3 KiB
PL/PgSQL
29 lines
1.3 KiB
PL/PgSQL
CREATE FUNCTION set_updated_at_to_now() RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = NOW();
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RETURN NEW;
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END;
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$$ language plpgsql;
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-- Your database schema. Use the Schema Designer at http://localhost:8001/ to add some tables.
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CREATE TABLE items (
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id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
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wikidata_id TEXT NOT NULL UNIQUE,
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description TEXT DEFAULT '' NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL
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);
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CREATE TABLE tags (
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id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
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item_id UUID NOT NULL,
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name TEXT NOT NULL,
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value TEXT NOT NULL,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL
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);
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CREATE INDEX tags_item_id_index ON tags (item_id);
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CREATE INDEX tags_created_at_index ON tags (created_at);
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CREATE TRIGGER update_tags_updated_at BEFORE UPDATE ON tags FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
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CREATE INDEX items_created_at_index ON items (created_at);
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CREATE TRIGGER update_items_updated_at BEFORE UPDATE ON items FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
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ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;
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