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Nice form errors

Author:
SmileyChris
Posted:
October 18, 2009
Language:
Python
Version:
1.1
Tags:
forms template-filter errors
Score:
7 (after 7 ratings)

Nicely output all form errors in one block, using field labels rather than the field attribute names.

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from django import template
from django import forms
from django.forms.forms import NON_FIELD_ERRORS
from django.forms.util import ErrorDict


register = template.Library()


@register.filter
def nice_errors(form, non_field_msg='General form errors'):
    nice_errors = ErrorDict()
    if isinstance(form, forms.BaseForm):
        for field, errors in form.errors.items():
            if field == NON_FIELD_ERRORS:
                key = non_field_msg
            else:
                key = form.fields[field].label
            nice_errors[key] = errors
    return nice_errors

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Comments

whiteinge (on October 18, 2009):
<p>Example?</p>

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daemian_mack (on July 10, 2010):
<p>Example:</p> <p>(My line-formatting is going to get wiped out by the Markdown processor, so you'll have to paste this into an editor and do indenting there.)</p> <p>{% if form.errors %} <ul class="messages"> {% with form|nice_errors as qq %} {% for error_name,desc in qq.items %} <li>{{ error_name }}:</li> <li>{{ desc }}</li> {% endfor %} </ul> {% endwith %} {% endif %}</p> <p>Since ErrorDict does some auto-HTMLizing of the dict values, this will produce doubly-nested unordered lists.</p>

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