77 lines
3 KiB
Python
77 lines
3 KiB
Python
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from django import forms
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from django.contrib import admin
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from django.forms.models import BaseInlineFormSet
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from .utils import set_default_filter
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class ExtendedModelAdmin(admin.ModelAdmin):
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add_fields = ()
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add_fieldsets = ()
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add_form = None
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change_readonly_fields = ()
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def get_readonly_fields(self, request, obj=None):
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fields = super(ExtendedModelAdmin, self).get_readonly_fields(request, obj=obj)
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if obj:
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return fields + self.change_readonly_fields
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return fields
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def get_fieldsets(self, request, obj=None):
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if not obj:
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if self.add_fieldsets:
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return self.add_fieldsets
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elif self.add_fields:
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return [(None, {'fields': self.add_fields})]
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return super(ExtendedModelAdmin, self).get_fieldsets(request, obj=obj)
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def get_inline_instances(self, request, obj=None):
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""" add_inlines and inline.parent_object """
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self.inlines = getattr(self, 'add_inlines', self.inlines)
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if obj:
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self.inlines = type(self).inlines
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inlines = super(ExtendedModelAdmin, self).get_inline_instances(request, obj=obj)
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for inline in inlines:
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inline.parent_object = obj
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return inlines
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def get_form(self, request, obj=None, **kwargs):
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""" Use special form during user creation """
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defaults = {}
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if obj is None and self.add_form:
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defaults['form'] = self.add_form
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defaults.update(kwargs)
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return super(ExtendedModelAdmin, self).get_form(request, obj, **defaults)
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class ChangeListDefaultFilter(object):
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"""
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Enables support for default filtering on admin change list pages
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Your model admin class should define an default_changelist_filters attribute
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default_changelist_filters = (('my_nodes', 'True'),)
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"""
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default_changelist_filters = ()
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def changelist_view(self, request, extra_context=None):
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""" Default filter as 'my_nodes=True' """
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defaults = []
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for queryarg, value in self.default_changelist_filters:
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set_default_filter(queryarg, request, value)
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defaults.append(queryarg)
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# hack response cl context in order to hook default filter awaearness into search_form.html template
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response = super(ChangeListDefaultFilter, self).changelist_view(request, extra_context=extra_context)
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if hasattr(response, 'context_data') and 'cl' in response.context_data:
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response.context_data['cl'].default_changelist_filters = defaults
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return response
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class AtLeastOneRequiredInlineFormSet(BaseInlineFormSet):
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def clean(self):
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"""Check that at least one service has been entered."""
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super(AtLeastOneRequiredInlineFormSet, self).clean()
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if any(self.errors):
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return
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if not any(cleaned_data and not cleaned_data.get('DELETE', False)
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for cleaned_data in self.cleaned_data):
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raise forms.ValidationError('At least one item required.')
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