django admin ModelMultipleChoiceField FilteredSelectMultiple form 自定义多选字段
django中的auth一般人都会用到不管是用他进入后台，还是自定义User model来实现用户管理，这都比必用的app，然后在使用中有一点很不方便，这两天研究了下，一般办法都是利用form解决的！但是苦于一直找不到想权 限那样合适的控件！今天一个碰巧的情况解决了这些问题，不多说，重写groupadmin的form
from django import forms from django.contrib import admin from django.contrib.admin.widgets import FilteredSelectMultiple from django.contrib.auth.admin import GroupAdmin from django.contrib.auth.models import Group,User class GroupAdminForm(forms.ModelForm): users = forms.ModelMultipleChoiceField(queryset=User.objects.all(), widget=FilteredSelectMultiple('Users', False), required=False) class Meta: model = Group def __init__(self, *args, **kwargs): instance = kwargs.get('instance', None) if instance is not None: initial = kwargs.get('initial', {}) initial['users'] = instance.user_set.all() kwargs['initial'] = initial super(GroupAdminForm, self).__init__(*args, **kwargs) def save(self, commit=True): group = super(GroupAdminForm, self).save(commit=commit) if commit: group.user_set = self.cleaned_data['users'] else: old_save_m2m = self.save_m2m def new_save_m2m(): old_save_m2m() group.user_set = self.cleaned_data['users'] self.save_m2m = new_save_m2m return group class MyGroupAdmin(GroupAdmin): form = GroupAdminForm admin.site.unregister(Group) admin.site.register(Group, MyGroupAdmin)