php - Extending EnitityType - constructor arguments not passing -

i have extended symfony\bridge\doctrine\form\type\entitytype following class

namespace main\form\type;  use /* ... */      class extendedentitytype extends entitytype {  /**  * @param formbuilderinterface $builder  * @param array $options  */ public function buildform(formbuilderinterface $builder, array $options) {  /* ... */ }  /**  * @param optionsresolver $resolver  */ public function configureoptions(optionsresolver $resolver) {     $resolver->setdefaults( [             'invalid_message' => 'the selected entity not exist',         ]     ); }  /**  * @return string  */ public function getparent() {     return entitytype::class; } 

then registred service

<services>     <service id="main.type.extended_entity" class="main\form\type\extendedentitytype">         <tag name="form.type_extension" extended-type="symfony\component\form\extension\core\type\entitytype"/>         <argument type="service" id="doctrine"/>     </service> </services> 

and got following error:

catchable fatal error: argument 1 passed symfony\\bridge\\doctrine\\form\\type\\doctrinetype::__construct()  must implement interface doctrine\\common\\persistence\\managerregistry, none given,  called in \/vagrant\/symfony3-micro\/vendor\/symfony\/symfony\/src\/symfony\/component\/form\/formregistry.php 

clearly reason arguments not passed constructor of doctrinetype.

i tried overwrite constructor , inject entitymanager got same error - none arguments passed constructor. have make works?

working symfony3.

you're mixing 2 concepts here.

you're extending entitytype means you're creating new custom form type, not making extension you're service mapping suggests.

these 2 separate concepts.

you should change service mapping tag form_extension form_type.

<services>     <service id="main.type.extended_entity" class="main\form\type\extendedentitytype">         <tag name="form.type" />         <argument type="service" id="doctrine"/>     </service> </services>