php - Symfony form error message parameters usage -

what purpose of message parameters array in symfony form error ?

for example, have following case: on form have subscriber in which, based on information given user api may called , additional errors added symfony form.

as such, when error occurs, add new error on field:

$myform->get('name')->adderror(     new formerror('name.api_invalid', null, array('{{ api_name }}' => $somevalue)) ); 

where 'name.api_invalid' defined in message.en.yml

name.api_invalid: "the api says name {{ api_name }}. please fix before proceeding." 

while message translated, "parameters" not replaced.

is not how form error parameters supposed work ?

note: can make work using

$myform->get('name')->adderror(     new formerror(         $this->translator->trans('name.api_invalid', array('{{ api_name }}' => $somevalue))     ) ); 

but i'm curious error parameters.

thank you!

the behavior looking @ changed in symfony 2.2:

translating validation errors optional. can still manually if like, or can simplify templates output translated message.

if @ form_errors block in 2.1 vs. form_errors block in 2.2 see difference in how errors displayed. override block , old way , import template wherever need it, or can translate error message way you're doing above (which how i've typically done , acceptable).

if you're going route of $translator->trans use %..% in parameters, stated in symfony documentation:

the placeholders can take on form full message reconstructed using php strtr function. %...% form recommended, avoid problems when using twig.

the {{ }} using more relegated using symfony validators , how build violations (example here).

now, if want messages , parameters automatically translated without manually throwing formerror, suggest creating custom validator whatever trying do, , build out message there. otherwise, translate manually way figured out.