26 lines
905 B
MySQL
26 lines
905 B
MySQL
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CREATE OR REPLACE FUNCTION item_comments(_item_id int, _level int, _where text, _order_by text)
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RETURNS jsonb
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LANGUAGE plpgsql STABLE PARALLEL SAFE AS
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$$
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DECLARE
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result jsonb;
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BEGIN
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IF _level < 1 THEN
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RETURN '[]'::jsonb;
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END IF;
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EXECUTE ''
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|| 'SELECT COALESCE(jsonb_agg(sub), ''[]''::jsonb) AS comments '
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|| 'FROM ( '
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|| ' SELECT "Item".*, "Item".created_at AS "createdAt", "Item".updated_at AS "updatedAt", '
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|| ' item_comments("Item".id, $2 - 1, $3, $4) AS comments, to_jsonb(users.*) as user '
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|| ' FROM "Item" p '
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|| ' JOIN "Item" ON "Item"."parentId" = p.id '
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|| ' JOIN users ON users.id = "Item"."userId" '
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|| ' WHERE p.id = $1 ' || _where || ' '
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|| _order_by
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|| ' ) sub'
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INTO result USING _item_id, _level, _where, _order_by;
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RETURN result;
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END
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$$;
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