Simple check if form field has errors in Twig template

Question

In Twig template I check if a field has an error like this:

{% if form.points.get('errors') is not empty %}

Is there any method like:

{% if form.points.hasErrors() %}

to do it simpler? It's not a big difference, but if I can't do it easier why not.

Many answers have been added and some of them depend on the `error_bubbling` setting. I've added a PR to the symfony cookbook to improve the docs. Feel free to vote for it here: https://github.com/symfony/symfony-docs/issues/6145 — webDEVILopers, Jan 14 '16 at 10:39
See my comment about how to do it with symfony 3.4, the dirty way through twig for&set or inside the controller : https://stackoverflow.com/a/49785276/7491491 Don't forget to upvote if it fix your needs :) — Raphaël G., Apr 11 '18 at 22:47

score 119 · Answer 1 · answered Jul 24 '13 at 06:07

119

better way I found, is to use this kind of code

{% if not form.vars.valid %}
<div class="alert alert-error">
    {{ form_errors(form) }}
</div>
{% endif %}

answered Jul 24 '13 at 06:07

birko

1,356
1
9
13

1

Sadly this is not working for me, while calling `{{ form_errors(form.somefield) }}` still works. – ex3v May 25 '14 at 10:02
2

@ex3v it depends on how you have set your error bubbling – birko May 28 '14 at 06:28
1

could you expand your answer? – ex3v May 28 '14 at 13:32
3

@ex3v as described here http://symfony.com/doc/current/reference/forms/types/form.html#error-bubbling default behavior has it set to be all errors displayed by the valid field. using form_row(form.field) or form_errors(form.field) wil display them. if you set error_bubbling true for that field. the error will be displayed in his parent form. – birko May 29 '14 at 07:30
Thanks! But things are getting complicated when you already have, say, 100 forms. I'm writing bundle to help resolve that, gonna share when it's done. – ex3v May 29 '14 at 09:45
This worked for me when i used: {% if form.vars.valid == false %} – Simon Epskamp Feb 06 '15 at 09:26
Note that in general, before testing the validity status you should also check if the form was submitted (like you would do in a controller), this can be done the same way with: `{% if form.vars.submitted %}` – COil Nov 08 '19 at 06:11

score 94 · Accepted Answer · answered Jan 18 '12 at 18:35

94

That method does not exist. I typically do {% if form.points.vars.errors|length %}.

answered Jan 18 '12 at 18:35

Kris Wallsmith

8,945
1
37
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13

This doesn't work for me using Symfony 2.3. birko's solution with `form.vars.valid` works fine. – binarious Aug 01 '13 at 11:34
@binarious This method works fine in Symfony 2.3 but you're right, the birko's solution is better now. – Maxooo Sep 25 '13 at 12:08
When there is an error, this solution will produce `0` **IF** `error_bubbling` is set to `True` in form type. – BentCoder Jun 15 '14 at 11:47
Couldn't make this work. I want a per field treatment. Not treat all errors at once. How can I check if one field only is valid ? neither this nor form.MYFORMINPUT.vars.valid work. – Nelson Teixeira Dec 01 '14 at 19:41
Great, It Works!! – Kapil Yadav Nov 23 '16 at 14:00

score 18 · Answer 3 · answered May 16 '12 at 08:42

You can also check for errors when overriding field rendering:

{% block field_row %}
{% spaceless %}    
    <div class="control-group {% if errors %}error{% endif %}">
      {{ form_label(form) }}
      <div class="controls">
        {{ form_widget(form) }}        
        {{ form_errors(form) }}        
      </div>
    </div>    
{% endspaceless %}
{% endblock field_row %}

score 14 · Answer 4 · answered Nov 02 '14 at 22:20

14

For deeper form customization I do:

<div class="form-group {% if form.MYFORMINPUT.vars.valid==false %}has-error{% endif %}">
//some twisted divs
{{form_label(form.MYFORMINPUT)}}
{{form_widget(form.MYFORMINPUT)}}
</div>

Sf2.5

answered Nov 02 '14 at 22:20

d3uter

737
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Ebenezer Nikabou · Answer 5 · 2022-10-14T14:22:09.020

4

If you are using symfony version >= 4, you can check errors existence with this code

{% if form_errors(registrationForm) %}
    <div class="alert alert-danger">        
        {{ form_errors(registrationForm) }}
    </div>
{% endif %}

edited Oct 14 '22 at 14:22

answered Jun 06 '20 at 13:43

Ebenezer Nikabou

369
4
14

score 1 · Answer 6 · answered Jul 12 '17 at 10:12

1

This is what i use :

 <div class="form-group {{ form.brand.vars.errors|length > '' ? 'has-error' }}">

answered Jul 12 '17 at 10:12

mrDjouk

271
5
8

Abdulkerim Jemal · Answer 7 · 2021-11-22T06:38:26.003

1

The simplest way of checking whether the form has an error:

{% if not form.vars.errors|length %}

{% endif %}

Symfony version >= 4

edited Nov 22 '21 at 06:38

answered Nov 20 '21 at 08:51

Abdulkerim Jemal

49
5

score 0 · Answer 8 · answered Jul 24 '14 at 10:31

0

Since an empty array resolves to false, you can shorten your existing check to

{% if form.WIDGET_NAME.get('errors') %}

answered Jul 24 '14 at 10:31

Riccardo Galli

12,419
6
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score -2 · Answer 9 · answered Aug 04 '14 at 14:00

i have create a twig extension to handle this: my extension

public function hasError($string)
{
    if(strlen($string) > 4)
        return true;
    return false;
}

i use it like this in twig

{{ has_error(form_errors(form.username)) ? form_errors(form.username) : '' }}

score -2 · Answer 10 · edited May 23 '17 at 11:46

-2

I had a similar problem, but form.points doesn't exist in my twig templates.

I had to get the number of errors in the controller, then pass it into my templates as a variable. $form->getErrors() does not behave as you might expect in your controller though. See this SO question for a function that will get the form errors correctly.

edited May 23 '17 at 11:46

Community

1
1

answered Mar 13 '12 at 23:50

adavea

1,535
1
19
25

Simple check if form field has errors in Twig template

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