Getting specific error message in Twig that was generated from Symfony2 Validator

Question

I'm passing $errors to Twig, generated from this:

$insert = new MyEntity();
$insert->setTest1( 'testtesttest' );
$validator = $this->get('validator');
$errors = $validator->validate($insert);

...how do I get a specific error value, something like this if it worked?

{{ errors('field1') }}

...which should just return the error message, e.g. "That is not a valid email address" etc.

I know I can loop through to get all of them:

{% for err in errors %}
    {{ err.label }}: {{ err.value }}<br />
{% endfor %}

...but I just want one specific one

didn't you already ask how to convert the errors to an array? what exactly do you want to achieve with your validation? what are you validating? wouldn't maybe a form suit here? ... a list of all errors , fields and messages separated by : and followed by a <br/> ? ... or will there another question be following :) — Nicolai Fröhlich
– Nicolai Fröhlich, Commented Jul 8, 2013 at 0:20
You asked me to post this question as you said it was different to the other one. stackoverflow.com/questions/17516070/… I just need to get one specific value from the Validation errors object when passed to Twig. — user2143356
– user2143356, Commented Jul 8, 2013 at 0:25

Nicolai Fröhlich · Accepted Answer · 2013-07-08 00:30:05Z

1

You cant just access the fieldname of an array of validation-error objects directly. You have to search it by looping.

{% for error in errors %}
   {% if error.propertyPath = 'fieldname' %}
      {{ error.propertyPath }}: {{ error.message }}
   {% endif %}
{% endfor %}

But maybe you're better off just using ...

$errors = $validator->validateProperty($insert, 'fieldname);

... in your controller and just passing the list of errors for the one property into your template.

answered Jul 8, 2013 at 0:30

Nicolai Fröhlich

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3 Comments

user2143356 Over a year ago

Oh, ok, thanks. I thought about doing that but I'm trying to use as many best practices as possible. I hoped for a simple {{ errors(field name) }} thing. Thanks again

Nicolai Fröhlich Over a year ago

that's possible using forms {{ form_errors(form.fieldName) }} , maybe you should look into the getErrorsAsString form method and/or dig deeper how it's done in the form component.

user2143356 Over a year ago

Thanks. I'm learning Symfony2 and haven't got to forms yet. It's one of the next topics though. None of what I'm doing is for production, it's all self-learning, so I thought I would thoroughly do a topic at a time.

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