815 lines
36 KiB
Python
815 lines
36 KiB
Python
from django import forms, template
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from django.forms.formsets import all_valid
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from django.forms.models import modelform_factory, inlineformset_factory
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from django.forms.models import BaseInlineFormset
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from django.contrib.contenttypes.models import ContentType
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from django.contrib.admin import widgets
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from django.contrib.admin.util import quote, unquote, get_deleted_objects
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from django.core.exceptions import ImproperlyConfigured, PermissionDenied
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from django.db import models, transaction
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from django.http import Http404, HttpResponse, HttpResponseRedirect
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from django.shortcuts import get_object_or_404, render_to_response
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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from django.utils.text import capfirst, get_text_list
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from django.utils.translation import ugettext as _
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from django.utils.encoding import force_unicode
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try:
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set
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except NameError:
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from sets import Set as set # Python 2.3 fallback
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HORIZONTAL, VERTICAL = 1, 2
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# returns the <ul> class for a given radio_admin field
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get_ul_class = lambda x: 'radiolist%s' % ((x == HORIZONTAL) and ' inline' or '')
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class IncorrectLookupParameters(Exception):
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pass
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def flatten_fieldsets(fieldsets):
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"""Returns a list of field names from an admin fieldsets structure."""
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field_names = []
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for name, opts in fieldsets:
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for field in opts['fields']:
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# type checking feels dirty, but it seems like the best way here
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if type(field) == tuple:
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field_names.extend(field)
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else:
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field_names.append(field)
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return field_names
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class AdminForm(object):
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def __init__(self, form, fieldsets, prepopulated_fields):
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self.form, self.fieldsets = form, fieldsets
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self.prepopulated_fields = [{
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'field': form[field_name],
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'dependencies': [form[f] for f in dependencies]
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} for field_name, dependencies in prepopulated_fields.items()]
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def __iter__(self):
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for name, options in self.fieldsets:
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yield Fieldset(self.form, name, **options)
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def first_field(self):
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for bf in self.form:
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return bf
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def _media(self):
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media = self.form.media
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for fs in self:
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media = media + fs.media
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return media
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media = property(_media)
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class Fieldset(object):
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def __init__(self, form, name=None, fields=(), classes=(), description=None):
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self.form = form
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self.name, self.fields = name, fields
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self.classes = u' '.join(classes)
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self.description = description
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def _media(self):
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from django.conf import settings
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if 'collapse' in self.classes:
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return forms.Media(js=['%sjs/admin/CollapsedFieldsets.js' % settings.ADMIN_MEDIA_PREFIX])
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return forms.Media()
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media = property(_media)
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def __iter__(self):
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for field in self.fields:
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yield Fieldline(self.form, field)
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class Fieldline(object):
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def __init__(self, form, field):
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self.form = form # A django.forms.Form instance
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if isinstance(field, basestring):
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self.fields = [field]
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else:
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self.fields = field
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def __iter__(self):
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for i, field in enumerate(self.fields):
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yield AdminField(self.form, field, is_first=(i == 0))
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def errors(self):
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return mark_safe(u'\n'.join([self.form[f].errors.as_ul() for f in self.fields]).strip('\n'))
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class AdminField(object):
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def __init__(self, form, field, is_first):
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self.field = form[field] # A django.forms.BoundField instance
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self.is_first = is_first # Whether this field is first on the line
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self.is_checkbox = isinstance(self.field.field.widget, forms.CheckboxInput)
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def label_tag(self):
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classes = []
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if self.is_checkbox:
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classes.append(u'vCheckboxLabel')
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contents = escape(self.field.label)
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else:
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contents = force_unicode(escape(self.field.label)) + u':'
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if self.field.field.required:
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classes.append(u'required')
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if not self.is_first:
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classes.append(u'inline')
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attrs = classes and {'class': u' '.join(classes)} or {}
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return self.field.label_tag(contents=contents, attrs=attrs)
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class BaseModelAdmin(object):
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"""Functionality common to both ModelAdmin and InlineAdmin."""
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raw_id_fields = ()
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fields = None
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fieldsets = None
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form = forms.ModelForm
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filter_vertical = ()
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filter_horizontal = ()
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radio_fields = {}
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prepopulated_fields = {}
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def formfield_for_dbfield(self, db_field, **kwargs):
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"""
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Hook for specifying the form Field instance for a given database Field
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instance.
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If kwargs are given, they're passed to the form Field's constructor.
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"""
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# If the field specifies choices, we don't need to look for special
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# admin widgets - we just need to use a select widget of some kind.
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if db_field.choices:
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if db_field.name in self.radio_fields:
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# If the field is named as a radio_field, use a RadioSelect
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kwargs['widget'] = widgets.AdminRadioSelect(
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choices=db_field.get_choices(include_blank=db_field.blank,
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blank_choice=[('', _('None'))]),
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attrs={
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'class': get_ul_class(self.radio_fields[db_field.name]),
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}
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)
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else:
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# Otherwise, use the default select widget.
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return db_field.formfield(**kwargs)
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# For DateTimeFields, use a special field and widget.
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if isinstance(db_field, models.DateTimeField):
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kwargs['form_class'] = forms.SplitDateTimeField
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kwargs['widget'] = widgets.AdminSplitDateTime()
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return db_field.formfield(**kwargs)
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# For DateFields, add a custom CSS class.
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if isinstance(db_field, models.DateField):
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kwargs['widget'] = widgets.AdminDateWidget
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return db_field.formfield(**kwargs)
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# For TimeFields, add a custom CSS class.
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if isinstance(db_field, models.TimeField):
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kwargs['widget'] = widgets.AdminTimeWidget
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return db_field.formfield(**kwargs)
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# For FileFields and ImageFields add a link to the current file.
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if isinstance(db_field, models.ImageField) or isinstance(db_field, models.FileField):
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kwargs['widget'] = widgets.AdminFileWidget
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return db_field.formfield(**kwargs)
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# For ForeignKey or ManyToManyFields, use a special widget.
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if isinstance(db_field, (models.ForeignKey, models.ManyToManyField)):
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if isinstance(db_field, models.ForeignKey) and db_field.name in self.raw_id_fields:
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kwargs['widget'] = widgets.ForeignKeyRawIdWidget(db_field.rel)
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elif isinstance(db_field, models.ForeignKey) and db_field.name in self.radio_fields:
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kwargs['widget'] = widgets.AdminRadioSelect(attrs={
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'class': get_ul_class(self.radio_fields[db_field.name]),
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})
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kwargs['empty_label'] = db_field.blank and _('None') or None
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else:
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if isinstance(db_field, models.ManyToManyField):
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# If it uses an intermediary model, don't show field in admin.
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if db_field.rel.through is not None:
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return None
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elif db_field.name in self.raw_id_fields:
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kwargs['widget'] = widgets.ManyToManyRawIdWidget(db_field.rel)
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kwargs['help_text'] = ''
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elif db_field.name in (list(self.filter_vertical) + list(self.filter_horizontal)):
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kwargs['widget'] = widgets.FilteredSelectMultiple(db_field.verbose_name, (db_field.name in self.filter_vertical))
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# Wrap the widget's render() method with a method that adds
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# extra HTML to the end of the rendered output.
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formfield = db_field.formfield(**kwargs)
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# Don't wrap raw_id fields. Their add function is in the popup window.
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if not db_field.name in self.raw_id_fields:
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formfield.widget = widgets.RelatedFieldWidgetWrapper(formfield.widget, db_field.rel, self.admin_site)
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return formfield
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# For any other type of field, just call its formfield() method.
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return db_field.formfield(**kwargs)
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def _declared_fieldsets(self):
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if self.fieldsets:
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return self.fieldsets
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elif self.fields:
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return [(None, {'fields': self.fields})]
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return None
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declared_fieldsets = property(_declared_fieldsets)
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class ModelAdmin(BaseModelAdmin):
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"Encapsulates all admin options and functionality for a given model."
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__metaclass__ = forms.MediaDefiningClass
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list_display = ('__str__',)
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list_display_links = ()
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list_filter = ()
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list_select_related = False
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list_per_page = 100
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search_fields = ()
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date_hierarchy = None
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save_as = False
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save_on_top = False
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ordering = None
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inlines = []
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# Custom templates (designed to be over-ridden in subclasses)
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change_form_template = None
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change_list_template = None
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delete_confirmation_template = None
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object_history_template = None
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def __init__(self, model, admin_site):
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self.model = model
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self.opts = model._meta
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self.admin_site = admin_site
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self.inline_instances = []
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for inline_class in self.inlines:
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inline_instance = inline_class(self.model, self.admin_site)
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self.inline_instances.append(inline_instance)
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super(ModelAdmin, self).__init__()
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def __call__(self, request, url):
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# Check that LogEntry, ContentType and the auth context processor are installed.
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from django.conf import settings
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if settings.DEBUG:
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from django.contrib.admin.models import LogEntry
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if not LogEntry._meta.installed:
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raise ImproperlyConfigured("Put 'django.contrib.admin' in your INSTALLED_APPS setting in order to use the admin application.")
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if not ContentType._meta.installed:
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raise ImproperlyConfigured("Put 'django.contrib.contenttypes' in your INSTALLED_APPS setting in order to use the admin application.")
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if 'django.core.context_processors.auth' not in settings.TEMPLATE_CONTEXT_PROCESSORS:
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raise ImproperlyConfigured("Put 'django.core.context_processors.auth' in your TEMPLATE_CONTEXT_PROCESSORS setting in order to use the admin application.")
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# Delegate to the appropriate method, based on the URL.
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if url is None:
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return self.changelist_view(request)
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elif url.endswith('add'):
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return self.add_view(request)
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elif url.endswith('history'):
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return self.history_view(request, unquote(url[:-8]))
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elif url.endswith('delete'):
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return self.delete_view(request, unquote(url[:-7]))
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else:
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return self.change_view(request, unquote(url))
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def _media(self):
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from django.conf import settings
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js = ['js/core.js', 'js/admin/RelatedObjectLookups.js']
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if self.prepopulated_fields:
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js.append('js/urlify.js')
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if self.opts.get_ordered_objects():
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js.extend(['js/getElementsBySelector.js', 'js/dom-drag.js' , 'js/admin/ordering.js'])
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if self.filter_vertical or self.filter_horizontal:
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js.extend(['js/SelectBox.js' , 'js/SelectFilter2.js'])
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return forms.Media(js=['%s%s' % (settings.ADMIN_MEDIA_PREFIX, url) for url in js])
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media = property(_media)
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def has_add_permission(self, request):
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"Returns True if the given request has permission to add an object."
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opts = self.opts
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return request.user.has_perm(opts.app_label + '.' + opts.get_add_permission())
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def has_change_permission(self, request, obj=None):
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"""
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Returns True if the given request has permission to change the given
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Django model instance.
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If `obj` is None, this should return True if the given request has
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permission to change *any* object of the given type.
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"""
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opts = self.opts
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return request.user.has_perm(opts.app_label + '.' + opts.get_change_permission())
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def has_delete_permission(self, request, obj=None):
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"""
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Returns True if the given request has permission to change the given
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Django model instance.
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If `obj` is None, this should return True if the given request has
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permission to delete *any* object of the given type.
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"""
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opts = self.opts
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return request.user.has_perm(opts.app_label + '.' + opts.get_delete_permission())
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def queryset(self, request):
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"""
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Returns a QuerySet of all model instances that can be edited by the
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admin site. This is used by changelist_view.
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"""
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qs = self.model._default_manager.get_query_set()
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# TODO: this should be handled by some parameter to the ChangeList.
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ordering = self.ordering or () # otherwise we might try to *None, which is bad ;)
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if ordering:
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qs = qs.order_by(*ordering)
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return qs
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def get_fieldsets(self, request, obj=None):
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"Hook for specifying fieldsets for the add form."
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if self.declared_fieldsets:
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return self.declared_fieldsets
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form = self.get_form(request)
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return [(None, {'fields': form.base_fields.keys()})]
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def get_form(self, request, obj=None):
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"""
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Returns a Form class for use in the admin add view. This is used by
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add_view and change_view.
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"""
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if self.declared_fieldsets:
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fields = flatten_fieldsets(self.declared_fieldsets)
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else:
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fields = None
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return modelform_factory(self.model, form=self.form, fields=fields, formfield_callback=self.formfield_for_dbfield)
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def get_formsets(self, request, obj=None):
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for inline in self.inline_instances:
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yield inline.get_formset(request, obj)
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def save_add(self, request, form, formsets, post_url_continue):
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"""
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Saves the object in the "add" stage and returns an HttpResponseRedirect.
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`form` is a bound Form instance that's verified to be valid.
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"""
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from django.contrib.admin.models import LogEntry, ADDITION
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opts = self.model._meta
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new_object = form.save(commit=True)
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if formsets:
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for formset in formsets:
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# HACK: it seems like the parent obejct should be passed into
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# a method of something, not just set as an attribute
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formset.instance = new_object
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formset.save()
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pk_value = new_object._get_pk_val()
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LogEntry.objects.log_action(request.user.id, ContentType.objects.get_for_model(self.model).id, pk_value, force_unicode(new_object), ADDITION)
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msg = _('The %(name)s "%(obj)s" was added successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': new_object}
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# Here, we distinguish between different save types by checking for
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# the presence of keys in request.POST.
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if request.POST.has_key("_continue"):
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request.user.message_set.create(message=msg + ' ' + _("You may edit it again below."))
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if request.POST.has_key("_popup"):
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post_url_continue += "?_popup=1"
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return HttpResponseRedirect(post_url_continue % pk_value)
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if request.POST.has_key("_popup"):
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return HttpResponse('<script type="text/javascript">opener.dismissAddAnotherPopup(window, "%s", "%s");</script>' % \
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# escape() calls force_unicode.
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(escape(pk_value), escape(new_object)))
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elif request.POST.has_key("_addanother"):
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request.user.message_set.create(message=msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
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return HttpResponseRedirect(request.path)
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else:
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request.user.message_set.create(message=msg)
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# Figure out where to redirect. If the user has change permission,
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# redirect to the change-list page for this object. Otherwise,
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# redirect to the admin index.
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if self.has_change_permission(request, None):
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post_url = '../'
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else:
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post_url = '../../../'
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return HttpResponseRedirect(post_url)
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save_add = transaction.commit_on_success(save_add)
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def save_change(self, request, form, formsets=None):
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"""
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Saves the object in the "change" stage and returns an HttpResponseRedirect.
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`form` is a bound Form instance that's verified to be valid.
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`formsets` is a sequence of InlineFormSet instances that are verified to be valid.
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"""
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from django.contrib.admin.models import LogEntry, CHANGE
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opts = self.model._meta
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new_object = form.save(commit=True)
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pk_value = new_object._get_pk_val()
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if formsets:
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for formset in formsets:
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formset.save()
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# Construct the change message.
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change_message = []
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if form.changed_data:
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change_message.append(_('Changed %s.') % get_text_list(form.changed_data, _('and')))
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if formsets:
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for formset in formsets:
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for added_object in formset.new_objects:
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change_message.append(_('Added %(name)s "%(object)s".')
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% {'name': added_object._meta.verbose_name,
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'object': added_object})
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for changed_object, changed_fields in formset.changed_objects:
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change_message.append(_('Changed %(list)s for %(name)s "%(object)s".')
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% {'list': get_text_list(changed_fields, _('and')),
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'name': changed_object._meta.verbose_name,
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'object': changed_object})
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for deleted_object in formset.deleted_objects:
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change_message.append(_('Deleted %(name)s "%(object)s".')
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% {'name': deleted_object._meta.verbose_name,
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'object': deleted_object})
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change_message = ' '.join(change_message)
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if not change_message:
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change_message = _('No fields changed.')
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LogEntry.objects.log_action(request.user.id, ContentType.objects.get_for_model(self.model).id, pk_value, force_unicode(new_object), CHANGE, change_message)
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msg = _('The %(name)s "%(obj)s" was changed successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': new_object}
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if request.POST.has_key("_continue"):
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request.user.message_set.create(message=msg + ' ' + _("You may edit it again below."))
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if request.REQUEST.has_key('_popup'):
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return HttpResponseRedirect(request.path + "?_popup=1")
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else:
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return HttpResponseRedirect(request.path)
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elif request.POST.has_key("_saveasnew"):
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request.user.message_set.create(message=_('The %(name)s "%(obj)s" was added successfully. You may edit it again below.') % {'name': force_unicode(opts.verbose_name), 'obj': new_object})
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return HttpResponseRedirect("../%s/" % pk_value)
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elif request.POST.has_key("_addanother"):
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request.user.message_set.create(message=msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
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return HttpResponseRedirect("../add/")
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else:
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request.user.message_set.create(message=msg)
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return HttpResponseRedirect("../")
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save_change = transaction.commit_on_success(save_change)
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def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
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opts = self.model._meta
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app_label = opts.app_label
|
|
ordered_objects = opts.get_ordered_objects()
|
|
context.update({
|
|
'add': add,
|
|
'change': change,
|
|
'has_add_permission': self.has_add_permission(request),
|
|
'has_change_permission': self.has_change_permission(request, obj),
|
|
'has_delete_permission': self.has_delete_permission(request, obj),
|
|
'has_file_field': True, # FIXME - this should check if form or formsets have a FileField,
|
|
'has_absolute_url': hasattr(self.model, 'get_absolute_url'),
|
|
'ordered_objects': ordered_objects,
|
|
'form_url': mark_safe(form_url),
|
|
'opts': opts,
|
|
'content_type_id': ContentType.objects.get_for_model(self.model).id,
|
|
'save_as': self.save_as,
|
|
'save_on_top': self.save_on_top,
|
|
'root_path': self.admin_site.root_path,
|
|
})
|
|
return render_to_response(self.change_form_template or [
|
|
"admin/%s/%s/change_form.html" % (app_label, opts.object_name.lower()),
|
|
"admin/%s/change_form.html" % app_label,
|
|
"admin/change_form.html"
|
|
], context, context_instance=template.RequestContext(request))
|
|
|
|
def add_view(self, request, form_url='', extra_context=None):
|
|
"The 'add' admin view for this model."
|
|
model = self.model
|
|
opts = model._meta
|
|
app_label = opts.app_label
|
|
|
|
if not self.has_add_permission(request):
|
|
raise PermissionDenied
|
|
|
|
if self.has_change_permission(request, None):
|
|
# redirect to list view
|
|
post_url = '../'
|
|
else:
|
|
# Object list will give 'Permission Denied', so go back to admin home
|
|
post_url = '../../../'
|
|
|
|
ModelForm = self.get_form(request)
|
|
inline_formsets = []
|
|
obj = self.model()
|
|
if request.method == 'POST':
|
|
form = ModelForm(request.POST, request.FILES)
|
|
for FormSet in self.get_formsets(request):
|
|
inline_formset = FormSet(data=request.POST, files=request.FILES,
|
|
instance=obj, save_as_new=request.POST.has_key("_saveasnew"))
|
|
inline_formsets.append(inline_formset)
|
|
if all_valid(inline_formsets) and form.is_valid():
|
|
return self.save_add(request, form, inline_formsets, '../%s/')
|
|
else:
|
|
form = ModelForm(initial=dict(request.GET.items()))
|
|
for FormSet in self.get_formsets(request):
|
|
inline_formset = FormSet(instance=obj)
|
|
inline_formsets.append(inline_formset)
|
|
|
|
adminForm = AdminForm(form, list(self.get_fieldsets(request)), self.prepopulated_fields)
|
|
media = self.media + adminForm.media
|
|
for fs in inline_formsets:
|
|
media = media + fs.media
|
|
|
|
inline_admin_formsets = []
|
|
for inline, formset in zip(self.inline_instances, inline_formsets):
|
|
fieldsets = list(inline.get_fieldsets(request))
|
|
inline_admin_formset = InlineAdminFormSet(inline, formset, fieldsets)
|
|
inline_admin_formsets.append(inline_admin_formset)
|
|
|
|
context = {
|
|
'title': _('Add %s') % force_unicode(opts.verbose_name),
|
|
'adminform': adminForm,
|
|
'is_popup': request.REQUEST.has_key('_popup'),
|
|
'show_delete': False,
|
|
'media': mark_safe(media),
|
|
'inline_admin_formsets': inline_admin_formsets,
|
|
'errors': AdminErrorList(form, inline_formsets),
|
|
'root_path': self.admin_site.root_path,
|
|
}
|
|
context.update(extra_context or {})
|
|
return self.render_change_form(request, context, add=True)
|
|
|
|
def change_view(self, request, object_id, extra_context=None):
|
|
"The 'change' admin view for this model."
|
|
model = self.model
|
|
opts = model._meta
|
|
app_label = opts.app_label
|
|
|
|
try:
|
|
obj = model._default_manager.get(pk=object_id)
|
|
except model.DoesNotExist:
|
|
# Don't raise Http404 just yet, because we haven't checked
|
|
# permissions yet. We don't want an unauthenticated user to be able
|
|
# to determine whether a given object exists.
|
|
obj = None
|
|
|
|
if not self.has_change_permission(request, obj):
|
|
raise PermissionDenied
|
|
|
|
if obj is None:
|
|
raise Http404('%s object with primary key %r does not exist.' % (force_unicode(opts.verbose_name), escape(object_id)))
|
|
|
|
if request.POST and request.POST.has_key("_saveasnew"):
|
|
return self.add_view(request, form_url='../../add/')
|
|
|
|
ModelForm = self.get_form(request, obj)
|
|
inline_formsets = []
|
|
if request.method == 'POST':
|
|
form = ModelForm(request.POST, request.FILES, instance=obj)
|
|
for FormSet in self.get_formsets(request, obj):
|
|
inline_formset = FormSet(request.POST, request.FILES, instance=obj)
|
|
inline_formsets.append(inline_formset)
|
|
|
|
if all_valid(inline_formsets) and form.is_valid():
|
|
return self.save_change(request, form, inline_formsets)
|
|
else:
|
|
form = ModelForm(instance=obj)
|
|
for FormSet in self.get_formsets(request, obj):
|
|
inline_formset = FormSet(instance=obj)
|
|
inline_formsets.append(inline_formset)
|
|
|
|
adminForm = AdminForm(form, self.get_fieldsets(request, obj), self.prepopulated_fields)
|
|
media = self.media + adminForm.media
|
|
|
|
inline_admin_formsets = []
|
|
for inline, formset in zip(self.inline_instances, inline_formsets):
|
|
fieldsets = list(inline.get_fieldsets(request, obj))
|
|
inline_admin_formset = InlineAdminFormSet(inline, formset, fieldsets)
|
|
inline_admin_formsets.append(inline_admin_formset)
|
|
media = media + inline_admin_formset.media
|
|
|
|
context = {
|
|
'title': _('Change %s') % force_unicode(opts.verbose_name),
|
|
'adminform': adminForm,
|
|
'object_id': object_id,
|
|
'original': obj,
|
|
'is_popup': request.REQUEST.has_key('_popup'),
|
|
'media': mark_safe(media),
|
|
'inline_admin_formsets': inline_admin_formsets,
|
|
'errors': AdminErrorList(form, inline_formsets),
|
|
'root_path': self.admin_site.root_path,
|
|
}
|
|
context.update(extra_context or {})
|
|
return self.render_change_form(request, context, change=True, obj=obj)
|
|
|
|
def changelist_view(self, request, extra_context=None):
|
|
"The 'change list' admin view for this model."
|
|
from django.contrib.admin.views.main import ChangeList, ERROR_FLAG
|
|
opts = self.model._meta
|
|
app_label = opts.app_label
|
|
if not self.has_change_permission(request, None):
|
|
raise PermissionDenied
|
|
try:
|
|
cl = ChangeList(request, self.model, self.list_display, self.list_display_links, self.list_filter,
|
|
self.date_hierarchy, self.search_fields, self.list_select_related, self.list_per_page, self)
|
|
except IncorrectLookupParameters:
|
|
# Wacky lookup parameters were given, so redirect to the main
|
|
# changelist page, without parameters, and pass an 'invalid=1'
|
|
# parameter via the query string. If wacky parameters were given and
|
|
# the 'invalid=1' parameter was already in the query string, something
|
|
# is screwed up with the database, so display an error page.
|
|
if ERROR_FLAG in request.GET.keys():
|
|
return render_to_response('admin/invalid_setup.html', {'title': _('Database error')})
|
|
return HttpResponseRedirect(request.path + '?' + ERROR_FLAG + '=1')
|
|
|
|
context = {
|
|
'title': cl.title,
|
|
'is_popup': cl.is_popup,
|
|
'cl': cl,
|
|
'has_add_permission': self.has_add_permission(request),
|
|
'root_path': self.admin_site.root_path,
|
|
}
|
|
context.update(extra_context or {})
|
|
return render_to_response(self.change_list_template or [
|
|
'admin/%s/%s/change_list.html' % (app_label, opts.object_name.lower()),
|
|
'admin/%s/change_list.html' % app_label,
|
|
'admin/change_list.html'
|
|
], context, context_instance=template.RequestContext(request))
|
|
|
|
def delete_view(self, request, object_id, extra_context=None):
|
|
"The 'delete' admin view for this model."
|
|
from django.contrib.admin.models import LogEntry, DELETION
|
|
opts = self.model._meta
|
|
app_label = opts.app_label
|
|
|
|
try:
|
|
obj = self.model._default_manager.get(pk=object_id)
|
|
except self.model.DoesNotExist:
|
|
# Don't raise Http404 just yet, because we haven't checked
|
|
# permissions yet. We don't want an unauthenticated user to be able
|
|
# to determine whether a given object exists.
|
|
obj = None
|
|
|
|
if not self.has_delete_permission(request, obj):
|
|
raise PermissionDenied
|
|
|
|
if obj is None:
|
|
raise Http404('%s object with primary key %r does not exist.' % (force_unicode(opts.verbose_name), escape(object_id)))
|
|
|
|
# Populate deleted_objects, a data structure of all related objects that
|
|
# will also be deleted.
|
|
deleted_objects = [mark_safe(u'%s: <a href="../../%s/">%s</a>' % (escape(force_unicode(capfirst(opts.verbose_name))), quote(object_id), escape(obj))), []]
|
|
perms_needed = set()
|
|
get_deleted_objects(deleted_objects, perms_needed, request.user, obj, opts, 1, self.admin_site)
|
|
|
|
if request.POST: # The user has already confirmed the deletion.
|
|
if perms_needed:
|
|
raise PermissionDenied
|
|
obj_display = str(obj)
|
|
obj.delete()
|
|
LogEntry.objects.log_action(request.user.id, ContentType.objects.get_for_model(self.model).id, object_id, obj_display, DELETION)
|
|
request.user.message_set.create(message=_('The %(name)s "%(obj)s" was deleted successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(obj_display)})
|
|
if not self.has_change_permission(request, None):
|
|
return HttpResponseRedirect("../../../../")
|
|
return HttpResponseRedirect("../../")
|
|
|
|
context = {
|
|
"title": _("Are you sure?"),
|
|
"object_name": force_unicode(opts.verbose_name),
|
|
"object": obj,
|
|
"deleted_objects": deleted_objects,
|
|
"perms_lacking": perms_needed,
|
|
"opts": opts,
|
|
"root_path": self.admin_site.root_path,
|
|
}
|
|
context.update(extra_context or {})
|
|
return render_to_response(self.delete_confirmation_template or [
|
|
"admin/%s/%s/delete_confirmation.html" % (app_label, opts.object_name.lower()),
|
|
"admin/%s/delete_confirmation.html" % app_label,
|
|
"admin/delete_confirmation.html"
|
|
], context, context_instance=template.RequestContext(request))
|
|
|
|
def history_view(self, request, object_id, extra_context=None):
|
|
"The 'history' admin view for this model."
|
|
from django.contrib.admin.models import LogEntry
|
|
model = self.model
|
|
opts = model._meta
|
|
action_list = LogEntry.objects.filter(
|
|
object_id = object_id,
|
|
content_type__id__exact = ContentType.objects.get_for_model(model).id
|
|
).select_related().order_by('action_time')
|
|
# If no history was found, see whether this object even exists.
|
|
obj = get_object_or_404(model, pk=object_id)
|
|
context = {
|
|
'title': _('Change history: %s') % force_unicode(obj),
|
|
'action_list': action_list,
|
|
'module_name': capfirst(force_unicode(opts.verbose_name_plural)),
|
|
'object': obj,
|
|
'root_path': self.admin_site.root_path,
|
|
}
|
|
context.update(extra_context or {})
|
|
return render_to_response(self.object_history_template or [
|
|
"admin/%s/%s/object_history.html" % (opts.app_label, opts.object_name.lower()),
|
|
"admin/%s/object_history.html" % opts.app_label,
|
|
"admin/object_history.html"
|
|
], context, context_instance=template.RequestContext(request))
|
|
|
|
class InlineModelAdmin(BaseModelAdmin):
|
|
"""
|
|
Options for inline editing of ``model`` instances.
|
|
|
|
Provide ``name`` to specify the attribute name of the ``ForeignKey`` from
|
|
``model`` to its parent. This is required if ``model`` has more than one
|
|
``ForeignKey`` to its parent.
|
|
"""
|
|
model = None
|
|
fk_name = None
|
|
formset = BaseInlineFormset
|
|
extra = 3
|
|
max_num = 0
|
|
template = None
|
|
verbose_name = None
|
|
verbose_name_plural = None
|
|
|
|
def __init__(self, parent_model, admin_site):
|
|
self.admin_site = admin_site
|
|
self.parent_model = parent_model
|
|
self.opts = self.model._meta
|
|
super(InlineModelAdmin, self).__init__()
|
|
if self.verbose_name is None:
|
|
self.verbose_name = self.model._meta.verbose_name
|
|
if self.verbose_name_plural is None:
|
|
self.verbose_name_plural = self.model._meta.verbose_name_plural
|
|
|
|
def get_formset(self, request, obj=None):
|
|
"""Returns a BaseInlineFormSet class for use in admin add/change views."""
|
|
if self.declared_fieldsets:
|
|
fields = flatten_fieldsets(self.declared_fieldsets)
|
|
else:
|
|
fields = None
|
|
return inlineformset_factory(self.parent_model, self.model,
|
|
form=self.form, formset=self.formset, fk_name=self.fk_name,
|
|
fields=fields, formfield_callback=self.formfield_for_dbfield,
|
|
extra=self.extra, max_num=self.max_num)
|
|
|
|
def get_fieldsets(self, request, obj=None):
|
|
if self.declared_fieldsets:
|
|
return self.declared_fieldsets
|
|
form = self.get_formset(request).form
|
|
return [(None, {'fields': form.base_fields.keys()})]
|
|
|
|
class StackedInline(InlineModelAdmin):
|
|
template = 'admin/edit_inline/stacked.html'
|
|
|
|
class TabularInline(InlineModelAdmin):
|
|
template = 'admin/edit_inline/tabular.html'
|
|
|
|
class InlineAdminFormSet(object):
|
|
"""
|
|
A wrapper around an inline formset for use in the admin system.
|
|
"""
|
|
def __init__(self, inline, formset, fieldsets):
|
|
self.opts = inline
|
|
self.formset = formset
|
|
self.fieldsets = fieldsets
|
|
|
|
def __iter__(self):
|
|
for form, original in zip(self.formset.initial_forms, self.formset.get_queryset()):
|
|
yield InlineAdminForm(self.formset, form, self.fieldsets, self.opts.prepopulated_fields, original)
|
|
for form in self.formset.extra_forms:
|
|
yield InlineAdminForm(self.formset, form, self.fieldsets, self.opts.prepopulated_fields, None)
|
|
|
|
def fields(self):
|
|
for field_name in flatten_fieldsets(self.fieldsets):
|
|
yield self.formset.form.base_fields[field_name]
|
|
|
|
def _media(self):
|
|
media = self.formset.media
|
|
for fs in self:
|
|
media = media + fs.media
|
|
return media
|
|
media = property(_media)
|
|
|
|
class InlineAdminForm(AdminForm):
|
|
"""
|
|
A wrapper around an inline form for use in the admin system.
|
|
"""
|
|
def __init__(self, formset, form, fieldsets, prepopulated_fields, original):
|
|
self.formset = formset
|
|
self.original = original
|
|
self.show_url = original and hasattr(original, 'get_absolute_url')
|
|
super(InlineAdminForm, self).__init__(form, fieldsets, prepopulated_fields)
|
|
|
|
def pk_field(self):
|
|
return AdminField(self.form, self.formset._pk_field_name, False)
|
|
|
|
def deletion_field(self):
|
|
from django.forms.formsets import DELETION_FIELD_NAME
|
|
return AdminField(self.form, DELETION_FIELD_NAME, False)
|
|
|
|
def ordering_field(self):
|
|
from django.forms.formsets import ORDERING_FIELD_NAME
|
|
return AdminField(self.form, ORDERING_FIELD_NAME, False)
|
|
|
|
class AdminErrorList(forms.util.ErrorList):
|
|
"""
|
|
Stores all errors for the form/formsets in an add/change stage view.
|
|
"""
|
|
def __init__(self, form, inline_formsets):
|
|
if form.is_bound:
|
|
self.extend(form.errors.values())
|
|
for inline_formset in inline_formsets:
|
|
self.extend(inline_formset.non_form_errors())
|
|
for errors_in_inline_form in inline_formset.errors:
|
|
self.extend(errors_in_inline_form.values())
|