全国计算机等级考试刷题系统-NCER.zip

import copy import json import operator import re from collections import OrderedDict from functools import partial, reduce, update_wrapper from urllib.parse import quote as urlquote from django import forms from django.conf import settings from django.contrib import messages from django.contrib.admin import helpers, widgets from django.contrib.admin.checks import ( BaseModelAdminChecks, InlineModelAdminChecks, ModelAdminChecks, ) from django.contrib.admin.exceptions import DisallowedModelAdminToField from django.contrib.admin.templatetags.admin_urls import add_preserved_filters from django.contrib.admin.utils import ( NestedObjects, construct_change_message, flatten_fieldsets, get_deleted_objects, lookup_needs_distinct, model_format_dict, model_ngettext, quote, unquote, ) from django.contrib.admin.views.autocomplete import AutocompleteJsonView from django.contrib.admin.widgets import ( AutocompleteSelect, AutocompleteSelectMultiple, ) from django.contrib.auth import get_permission_codename from django.core.exceptions import ( FieldDoesNotExist, FieldError, PermissionDenied, ValidationError, ) from django.core.paginator import Paginator from django.db import models, router, transaction from django.db.models.constants import LOOKUP_SEP from django.db.models.fields import BLANK_CHOICE_DASH from django.forms.formsets import DELETION_FIELD_NAME, all_valid from django.forms.models import ( BaseInlineFormSet, inlineformset_factory, modelform_defines_fields, modelform_factory, modelformset_factory, ) from django.forms.widgets import CheckboxSelectMultiple, SelectMultiple from django.http import HttpResponseRedirect from django.http.response import HttpResponseBase from django.template.response import SimpleTemplateResponse, TemplateResponse from django.urls import reverse from django.utils.decorators import method_decorator from django.utils.html import format_html from django.utils.http import urlencode from django.utils.inspect import get_func_args from django.utils.safestring import mark_safe from django.utils.text import capfirst, format_lazy, get_text_list from django.utils.translation import gettext as _, ngettext from django.views.decorators.csrf import csrf_protect from django.views.generic import RedirectView IS_POPUP_VAR = '_popup' TO_FIELD_VAR = '_to_field' HORIZONTAL, VERTICAL = 1, 2 def get_content_type_for_model(obj): # Since this module gets imported in the application's root package, # it cannot import models from other applications at the module level. from django.contrib.contenttypes.models import ContentType return ContentType.objects.get_for_model(obj, for_concrete_model=False) def get_ul_class(radio_style): return 'radiolist' if radio_style == VERTICAL else 'radiolist inline' class IncorrectLookupParameters(Exception): pass # Defaults for formfield_overrides. ModelAdmin subclasses can change this # by adding to ModelAdmin.formfield_overrides. FORMFIELD_FOR_DBFIELD_DEFAULTS = { models.DateTimeField: { 'form_class': forms.SplitDateTimeField, 'widget': widgets.AdminSplitDateTime }, models.DateField: {'widget': widgets.AdminDateWidget}, models.TimeField: {'widget': widgets.AdminTimeWidget}, models.TextField: {'widget': widgets.AdminTextareaWidget}, models.URLField: {'widget': widgets.AdminURLFieldWidget}, models.IntegerField: {'widget': widgets.AdminIntegerFieldWidget}, models.BigIntegerField: {'widget': widgets.AdminBigIntegerFieldWidget}, models.CharField: {'widget': widgets.AdminTextInputWidget}, models.ImageField: {'widget': widgets.AdminFileWidget}, models.FileField: {'widget': widgets.AdminFileWidget}, models.EmailField: {'widget': widgets.AdminEmailInputWidget}, } csrf_protect_m = method_decorator(csrf_protect) class BaseModelAdmin(metaclass=forms.MediaDefiningClass): """Functionality common to both ModelAdmin and InlineAdmin.""" autocomplete_fields = () raw_id_fields = () fields = None exclude = None fieldsets = None form = forms.ModelForm filter_vertical = () filter_horizontal = () radio_fields = {} prepopulated_fields = {} formfield_overrides = {} readonly_fields = () ordering = None sortable_by = None view_on_site = True show_full_result_count = True checks_class = BaseModelAdminChecks def check(self, **kwargs): return self.checks_class().check(self, **kwargs) def __init__(self): # Merge FORMFIELD_FOR_DBFIELD_DEFAULTS with the formfield_overrides # rather than simply overwriting. overrides = copy.deepcopy(FORMFIELD_FOR_DBFIELD_DEFAULTS) for k, v in self.formfield_overrides.items(): overrides.setdefault(k, {}).update(v) self.formfield_overrides = overrides def formfield_for_dbfield(self, db_field, request, **kwargs): """ Hook for specifying the form Field instance for a given database Field instance. If kwargs are given, they're passed to the form Field's constructor. """ # If the field specifies choices, we don't need to look for special # admin widgets - we just need to use a select widget of some kind. if db_field.choices: return self.formfield_for_choice_field(db_field, request, **kwargs) # ForeignKey or ManyToManyFields if isinstance(db_field, (models.ForeignKey, models.ManyToManyField)): # Combine the field kwargs with any options for formfield_overrides. # Make sure the passed in **kwargs override anything in # formfield_overrides because **kwargs is more specific, and should # always win. if db_field.__class__ in self.formfield_overrides: kwargs = {**self.formfield_overrides[db_field.__class__], **kwargs} # Get the correct formfield. if isinstance(db_field, models.ForeignKey): formfield = self.formfield_for_foreignkey(db_field, request, **kwargs) elif isinstance(db_field, models.ManyToManyField): formfield = self.formfield_for_manytomany(db_field, request, **kwargs) # For non-raw_id fields, wrap the widget with a wrapper that adds # extra HTML -- the "add other" interface -- to the end of the # rendered output. formfield can be None if it came from a # OneToOneField with parent_link=True or a M2M intermediary. if formfield and db_field.name not in self.raw_id_fields: related_modeladmin = self.admin_site._registry.get(db_field.remote_field.model) wrapper_kwargs = {} if related_modeladmin: wrapper_kwargs.update( can_add_related=related_modeladmin.has_add_permission(request), can_change_related=related_modeladmin.has_change_permission(request), can_delete_related=related_modeladmin.has_delete_permission(request), can_view_related=related_modeladmin.has_view_permission(request), ) formfield.widget = widgets.RelatedFieldWidgetWrapper( formfield.widget, db_field.remote_field, self.admin_site, **wrapper_kwargs ) return formfield # If we've got overrides for the formfield defined, use 'em. **kwargs # passed to formfield_for_dbfield override the defaults. for klass in db_field.__class__.mro(): if klass in self.formfield_overrides: kwargs = {**copy.deepcopy(self.formfield_overrides[klass]), **kwargs} return db_field.formfield(**kwargs) # For any other type of field, just call its formfield() method. return db_field.formfield(**kwargs) def formfield_for_choice_field(self, db_field, request, **kwargs): """ Get a