Django - Immuting MultiValueField
I need MultiWidgets that renders HTML as the following as a MultiValueField:
<div class="formfield_trailer">
<div class="formfield_title">My Family</div>
<select label="My Family" name="family_biodata[]" id="id_my_family_0">
<option value="0">Select One</option>
<option value="F">Father</option>
<option value="M">Mother</option>
</select>
<input type="text" size="5" class="family" label="My Parents" id="id_my_family" name="family_biodata[]">
<input type="checkbox" label="My Family" name="family_biodata[]" id="id_my_family_2">
<p><a>Add More<br><br></a></p>
</div>
Thanks in advance. Also, I can help someone for a detailed tutorial link as I'm a newbie and the Django Document doesn't specify much.
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1 answer
Here's a project illustrating a MultiValueField example:
https://github.com/justinlilly/django_multiwidget_demo
Here's the relevant bit from that project source:
# fields
from django.forms import fields
from djnycapp.widgets import AutoCompleteWidget
from django.contrib.auth.models import User
class UserAutoCompleteField(fields.MultiValueField):
widget = AutoCompleteWidget
def __init__(self, *args, **kwargs):
"""
Have to pass a list of field types to the constructor, else we
won't get any data to our compress method.
"""
all_fields = (
fields.CharField(),
fields.CharField(),
)
super(UserAutoCompleteField, self).__init__(all_fields, *args, **kwargs)
def compress(self, data_list):
"""
Takes the values from the MultiWidget and passes them as a
list to this function. This function needs to compress the
list into a single object to save.
"""
if data_list:
return User.objects.get(id=data_list[0])
return None
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