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POWhy is my custom validation not being called?
 

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  1. POWhy is my custom validation not being called?
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    <p>I have this model and modelform:</p> <pre><code>class Comment(models.Model): text = models.CharField(max_length=100) def clean_text(self): print "called Comment" if len(self.text) &lt;= 5: raise ValidationError("must have 5 chars at least") class CommentForm(ModelForm): class Meta: model = Comment def clean_text(self): print "called CommentForm" if len(self.text) &lt;= 5: raise ValidationError("must have 5 chars at least") </code></pre> <p>And I'm using them like this in the view:</p> <pre><code> CommentFormSet = modelformset_factory(model=Comment,form=CommentForm,extra=3) if request.method == "POST": formset = CommentFormSet(request.POST) if formset.is_valid(): print "VALID FORM" else: formset = CommentFormSet() return render_to_response("first.html",{"formset":formset},context_instance=RequestContext(request)) </code></pre> <p>And this is my template:</p> <pre><code>&lt;form action="first" method="post"&gt; {% csrf_token %} {% for dict in formset.errors %} {% for error in dict.values %} {{ error }} {% endfor %} {% endfor %} &lt;table&gt; {{ formset }} &lt;/table&gt; &lt;input type="submit" value="Create"/&gt; &lt;/form&gt; </code></pre> <p>The thing is, my validation is never called. I have 3 comments which I can add at once, and if their text field is empty, django says it's no problem. What am I not doing right?</p> <p>EDIT: The variant with validator:</p> <pre><code>def validate_min(val): print "validator called" if len(val) &lt;= 5: raise ValidationError("At least 5 characters should be provided") class Comment(models.Model): text = models.CharField(max_length=100,validators=[validate_min]) </code></pre> <p>My validator is not being called.</p>
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    1. USGeo
    1. USGeo
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      1. POWhy is my custom validation not being called?
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    1. COthis is weird. Are you sure you didn't make any duplicated class name?
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      1. POWhy is my custom validation not being called?
      1. USjargalan
    2. COI haven't. I noticed that if the text length is different than 0, the validator is called.
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      1. POWhy is my custom validation not being called?
      1. USGeo
    3. COah then maybe bcoz django model field has blank attribute and default is False. It means the field is required. So the field parent validation works first. It executes custom validation after it passes base field validation
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      1. POWhy is my custom validation not being called?
      1. USjargalan
 

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