CREATE TABLE IF NOT EXISTS categorydatakeys
(
    id serial NOT NULL,
    name character varying(255) NOT NULL,
    CONSTRAINT categorydatakeys_pkey
        PRIMARY KEY (id)
);

DROP INDEX IF EXISTS categorydatakeys_value_idx;
CREATE UNIQUE INDEX categorydatakeys_value_idx
    ON categorydatakeys (name);

CREATE TABLE IF NOT EXISTS categorydata
(
    category_id integer NOT NULL,
    datakey_id integer NOT NULL,
    locale_id integer NOT NULL,
    text text NOT NULL,
    CONSTRAINT categorydata_pkey
        PRIMARY KEY (category_id, datakey_id, locale_id),
    CONSTRAINT categorydata_category_id_fkey
        FOREIGN KEY (category_id)
        REFERENCES categories (id),
    CONSTRAINT categorydata_datakey_id_fkey
        FOREIGN KEY (datakey_id)
        REFERENCES categorydatakeys (id),
    CONSTRAINT categorydata_locale_id_fkey
        FOREIGN KEY (locale_id)
        REFERENCES locales (id)
);

INSERT    INTO categorydatakeys (name)
VALUES    ('canvas_pagetitle'),
          ('canvas_metadesc'),
          ('wallpaper_pagetitle'),
          ('wallpaper_metadesc'),
          ('design_wallpaper_pagetitle'),
          ('design_wallpaper_metadesc');