web/config/schema.xml

<database name="default" defaultIdMethod="native"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="http://xsd.propelorm.org/1.6/database.xsd"
          namespace="Eater\Glim\Model"
        >
    <table name="User">
        <column name="id" type="integer" primaryKey="true" autoIncrement="true" />
        <column name="max_keys" type="integer" default="5" />
        <column name="username" type="varchar" size="64" />
        <column name="password" type="varchar" size="64" />
        <column name="superuser" type="boolean" default="false" />

        <unique>
            <unique-column name="username" />
        </unique>
    </table>

    <table name="Certificate">
        <column name="id" type="integer" primaryKey="true" autoIncrement="true" />
        <column name="user_id" type="integer" />
        <column name="name" type="varchar" size="64" />
        <column name="certificate" type="longvarchar" />
        <column name="expires_on" type="timestamp" />
        <column name="revoked" type="boolean" default="false" />
        <column name="serial" type="varchar" size="64" />

        <index>
            <index-column name="user_id" />
        </index>

        <index>
            <index-column name="serial" />
        </index>

        <unique>
            <unique-column name="name" />
            <unique-column name="user_id" />
        </unique>

        <foreign-key foreignTable="User">
            <reference local="user_id" foreign="id" />
        </foreign-key>
    </table>

    <table name="Invite">
        <column name="id" type="integer" primaryKey="true" autoIncrement="true" />
        <column name="invite" type="varchar" size="64" />
    </table>
</database>