php - symfony2 rendering of a form as form type -

i have 2 entities invoice , customer. have 2 forms invoiceform , customerform. when create new invoice (with invoiceform), want able create new customer (just one). here how (and works):

<?php namespace acme\demobundle\form;  use symfony\component\form\abstracttype; use symfony\component\form\formbuilderinterface;  class customerform extends abstracttype {     public function buildform(formbuilderinterface $builder, array $options)     {         $builder             ->add('firstname')             ->add('lastname')             ->add('phone');     }      public function getname()     {         return 'customer_create';     } }  <?php namespace acme\demobundle\form;  use symfony\component\form\abstracttype; use symfony\component\form\formbuilderinterface;  class invoiceform extends abstracttype {     public function buildform(formbuilderinterface $builder, array $options)     {         $builder             ->add('title')             ->add('date')             ->add('customer', new customerform());     }      public function getname()     {         return 'invoice_create';     } } 

so in view (invoice/new.html.twig) can customize way display attributes of invoiceform (title , date), mean can put form_row(invoiceform.title) in whatever want, can anything. attributes of "subform" invoiceform.customer, can't, it's done automatically (firstname, lastname, phone) because can use invoiceform.customer. see mean?

if, in controller, making "new customerform()", , rendering form, want, since i'm making "new invoiceform()", can't. don't know if explain correctly ^^

thanks :)

ok i've found answer myself, can access subform attributes with:

{{ form_row(form.customer.firstname }} {{ form_row(form.customer.lastname }} {{ form_row(form.customer.phone }} 

so can customize need. , also, there way test form type in view:

{{ form.customer.vars.block_prefixes.2 }} 

which in case return customer_create name of subform (yeah know did not ask that, needed ^^ maybe else ;) )

thank you!