Wednesday, August 18, 2010

Accessing model field validators from within form template

Hi,

In my generic form template, if a CharField has a max_length
attribute, I display that beside the form field:

{% if field.field.max_length %}
Max. {{ field.field.max_length }} char.
{% endif %}

I want to do the same for TextFields, where max_length is not used,
but the max limit is set by a validator like that in the model:

class Entry(models.Model):
...
body = models.TextField(validators=[MaxLengthValidator(1000)])


For ModelForm, is it possible to access the validators' max value from
within the templates similar to this:

{{ field.validators[0].max_length }}


Cheers,
omat

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