symfony - Doctrine Class Table Inheritance with Symfony2 -

i have 2 symfony bundles. adminbundle installed. pagebundle may or may not installed.

i want define base entity called adminmodule (name, controller class, description, enabled), , pagemodule inherits adminmodule ( entities controller implement specific interface).

<?php  namespace adminbundle\entity;  /**  * admin component  *  * @orm\entity  * @orm\table(name="admin_module")  * @orm\inheritancetype("joined")  * @orm\discriminatorcolumn(name="discr", type="string")  * @orm\discriminatormap({"page" = "\pagebundle\entity\pagecomponent"})  */ class adminmodule {     // private vars, getters, setters } ?>  <?php namespace pagebundle\entity;  use adminbundle\entity\adminmodule;  /**  * page component  *  * @orm\entity  * @orm\table(name="page_module")  */ class pagemodule extends adminmodule {     // } ?> 

the issue have, think, adminmodule annotation @orm\discriminatormap({"page" = "\pagebundle\entity\pagemodule"}) requires definition on adminbundle - pagebundle may not installed.

i believe must have wrong type of inheritance structure (?) not clear on alternative approaches can take? or direction :)

you can't you're trying table inheritance mappings, because have write annotations in parent class, parent class ends being coupled children.

what use mapped superclass (@mappedsuperclass) extend actual parent entities from.

all common properties should go mapped superclass, using children actual entities define different inheritance mappings , associations (association mappings in mapped superclasses limited).

so in specific case have such structure:

/**   * i'm not actual entity!  *  * @mappedsuperclass */ class modulesuperclass {}   /**   * don't have children  *   * @orm\entity */ class basemodule extends modulesuperclass {}  /**   * have children  *   * @orm\entity  * @orm\inheritancetype("joined")  * @orm\discriminatorcolumn(name="discr", type="string")  * @orm\discriminatormap({"page" = "page"})   */ class adminmodule extends modulesuperclass {}  /**  * i'm child  *  * @orm\entity  */ class pagemodule extends adminmodule {} 

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your mileage may of course vary, i.e. rather have basemodule class without children, , basemodule in entirely different namespace extend both adminmodule , pagemodule from.