from __future__ import absolute_import
from collections import OrderedDict
from django.core.exceptions import PermissionDenied, ObjectDoesNotExist
from django.core.paginator import InvalidPage, Paginator
from django.urls.base import NoReverseMatch
from django.db import models
from django.http import HttpResponseRedirect
from django.template.response import SimpleTemplateResponse, TemplateResponse
from django.utils import six
from django.utils.encoding import force_text, smart_text
from django.utils.html import escape, conditional_escape
from django.utils.safestring import mark_safe
from django.utils.text import capfirst
from django.utils.translation import ugettext as _
from xadmin.util import lookup_field, display_for_field, label_for_field, boolean_icon
from .base import ModelAdminView, filter_hook, inclusion_tag, csrf_protect_m
# List settings
ALL_VAR = 'all'
ORDER_VAR = 'o'
PAGE_VAR = 'p'
TO_FIELD_VAR = 't'
COL_LIST_VAR = '_cols'
ERROR_FLAG = 'e'
DOT = '.'
# Text to display within change-list table cells if the value is blank.
EMPTY_CHANGELIST_VALUE = _('Null')
class FakeMethodField(object):
"""
This class used when a column is an model function, wrap function as a fake field to display in select columns.
"""
def __init__(self, name, verbose_name):
# Initial comm field attrs
self.name = name
self.verbose_name = verbose_name
self.primary_key = False
class ResultRow(dict):
pass
class ResultItem(object):
def __init__(self, field_name, row):
self.classes = []
self.text = ' '
self.wraps = []
self.tag = 'td'
self.tag_attrs = []
self.allow_tags = False
self.btns = []
self.menus = []
self.is_display_link = False
self.row = row
self.field_name = field_name
self.field = None
self.attr = None
self.value = None
@property
def label(self):
text = mark_safe(
self.text) if self.allow_tags else conditional_escape(self.text)
if force_text(text) == '':
text = mark_safe(' ')
for wrap in self.wraps:
text = mark_safe(wrap % text)
return text
@property
def tagattrs(self):
return mark_safe(
'%s%s' % ((self.tag_attrs and ' '.join(self.tag_attrs) or ''),
(self.classes and (' class="%s"' % ' '.join(self.classes)) or '')))
class ResultHeader(ResultItem):
def __init__(self, field_name, row):
super(ResultHeader, self).__init__(field_name, row)
self.tag = 'th'
self.tag_attrs = ['scope="col"']
self.sortable = False
self.allow_tags = True
self.sorted = False
self.ascending = None
self.sort_priority = None
self.url_primary = None
self.url_remove = None
self.url_toggle = None
class ListAdminView(ModelAdminView):
"""
Display models objects view. this class has ordering and simple filter features.
"""
list_display = ('__str__',)
list_display_links = ()
list_display_links_details = False
list_select_related = None
list_per_page = 50
list_max_show_all = 200
list_exclude = ()
search_fields = ()
paginator_class = Paginator
ordering = None
# Change list templates
object_list_template = None
def init_request(self, *args, **kwargs):
if not self.has_view_permission():
raise PermissionDenied
request = self.request
request.session['LIST_QUERY'] = (self.model_info, self.request.META['QUERY_STRING'])
self.pk_attname = self.opts.pk.attname
self.lookup_opts = self.opts
self.list_display = self.get_list_display()
self.list_display_links = self.get_list_display_links()
# Get page number parameters from the query string.
try:
self.page_num = int(request.GET.get(PAGE_VAR, 0))
except ValueError:
self.page_num = 0
# Get params from request
self.show_all = ALL_VAR in request.GET
self.to_field = request.GET.get(TO_FIELD_VAR)
self.params = dict(request.GET.items())
if PAGE_VAR in self.params:
del self.params[PAGE_VAR]
if ERROR_FLAG in self.params:
del self.params[ERROR_FLAG]
@filter_hook
def get_list_display(self):
"""
Return a sequence containing the fields to be displayed on the list.
"""
self.base_list_display = (COL_LIST_VAR in self.request.GET and self.request.GET[COL_LIST_VAR] != "" and
self.request.GET[COL_LIST_VAR].split('.')) or self.list_display
return list(self.base_list_display)
@filter_hook
def get_list_display_links(self):
"""
Return a sequence containing the fields to be displayed as links
on the changelist. The list_display parameter is the list of fields
returned by get_list_display().
"""
if self.list_display_links or not self.list_display:
return self.list_display_links
else:
# Use only the first item in list_display as link
return list(self.list_display)[:1]
def make_result_list(self):
# Get search parameters from the query string.
self.list_queryset = self.get_list_queryset()
self.ordering_field_columns = self.get_ordering_field_columns()
self.paginator = self.get_paginator()
# Get the number of objects, with admin filters applied.
self.result_count = self.paginator.count
self.can_show_all = self.result_count <= self.list_max_show_all
self.multi_page = self.result_count > self.list_per_page
# Get the list of objects to display on this page.
if (self.show_all and self.can_show_all) or not self.multi_page:
self.result_list = self.list_queryset._clone()
else:
try:
self.result_list = self.paginator.page(
self.page_num + 1).object_list
except InvalidPage:
if ERROR_FLAG in self.request.GET.keys():
return SimpleTemplateResponse('xadmin/views/invalid_setup.html', {
'title': _('Database error'),
})
return HttpResponseRedirect(self.request.path + '?' + ERROR_FLAG + '=1')
self.has_more = self.result_count > (
self.list_per_page * self.page_num + len(self.result_list))
@filter_hook
def get_result_list(self):
return self.make_result_list()
@filter_hook
def post_result_list(self):
return self.make_result_list()
@filter_hook
def get_list_queryset(self):
"""
Get model queryset. The query has been filted and ordered.
"""
# First, get queryset from base class.
queryset = self.queryset()
# Use select_related() if one of the list_display options is a field
# with a relationship and the provided queryset doesn't already have
# select_related defined.
if not queryset.query.select_related:
if self.list_select_related:
queryset = queryset.select_related()
elif self.list_select_related is None:
related_fields = []
for field_name in self.list_display:
try:
field = self.opts.get_field(field_name)
except models.FieldDoesNotExist:
pass
else:
if isinstance(field.remote_field, models.ManyToOneRel):
related_fields.append(field_name)
if related_fields:
queryset = queryset.select_related(*related_fields)
else:
pass
# Then, set queryset ordering.
queryset = queryset.order_by(
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【资源说明】 Python毕业设计-基于Django的在线教育平台的设计与实现+使用说明+全部资料(优秀项目).zipPython毕业设计-基于Django的在线教育平台的设计与实现+使用说明+全部资料(优秀项目).zip 【备注】 1、该资源内项目代码都经过测试运行成功,功能ok的情况下才上传的,请放心下载使用! 2、本项目适合计算机相关专业(如软件工程、计科、人工智能、通信工程、自动化、电子信息等)的在校学生、老师或者企业员工下载使用,也可作为毕设项目、课程设计、作业、项目初期立项演示等,当然也适合小白学习进阶。 3、如果基础还行,可以在此代码基础上进行修改,以实现其他功能,也可直接用于毕设、课设、作业等。 欢迎下载,沟通交流,互相学习,共同进步!
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Python毕业设计-基于Django的在线教育平台的设计与实现+使用说明+全部资料(优秀项目).zip (798个子文件)
config 335B
style.css 148KB
bootstrap.css 123KB
bootstrap.min.css 100KB
animate.css 69KB
aui.css 58KB
common-less.css 46KB
mobiscroll.css 25KB
font-awesome.css 21KB
common-less.css 21KB
mooc.css 20KB
bootstrap-theme.css 19KB
select2.css 19KB
font-awesome.min.css 17KB
bootstrap-theme.min.css 17KB
course-comment.css 16KB
selectize.bootstrap2.css 15KB
selectize.default.css 11KB
layer.css 11KB
selectize.legacy.css 11KB
selectize.bootstrap3.css 10KB
cityLayout.css 10KB
datepicker.css 10KB
learn-less.css 9KB
login.css 9KB
selectize.css 8KB
xadmin.main.css 8KB
laydate.css 6KB
lq.datetimepick.css 5KB
base.css 4KB
xadmin.responsive.css 4KB
bootstrap-modal.css 4KB
bootstrap-clockpicker.css 4KB
xadmin.form.css 3KB
laydate.css 3KB
bootstrap-image-gallery.css 3KB
bootstrap-clockpicker.min.css 3KB
layer.ext.css 3KB
bootstrap-timepicker.css 3KB
reset.css 3KB
bootstrap-image-gallery.min.css 2KB
bootstrap-timepicker.min.css 2KB
xadmin.widget.select-transfer.css 2KB
bootstrap-xadmin.css 2KB
xadmin.mobile.css 1KB
snap.css 1KB
xadmin.plugin.formset.css 1KB
xadmin.widget.editable.css 1KB
xadmin.page.dashboard.css 790B
xadmin.plugin.importexport.css 321B
xadmin.plugin.quickfilter.css 248B
xadmin.plugins.css 175B
xadmin.plugin.aggregation.css 95B
bootstrap-multiselect.css 0B
Thumbs.db 9KB
fontawesome-webfont.eot 37KB
glyphicons-halflings-regular.eot 20KB
background.gif 8KB
loading-0.gif 6KB
loading.gif 4KB
help_index_pic.gif 2KB
rolling.gif 2KB
select2-spinner.gif 2KB
loading-2.gif 2KB
ajax-loader.gif 2KB
select-arr-default.gif 1KB
pop-tips-info-arr.gif 1KB
loading-1.gif 701B
pixel.gif 43B
index.html 37KB
register.html 10KB
org_base.html 10KB
org-list.html 9KB
base.html 6KB
forgetpwd.html 6KB
model_list.html 5KB
login.html 5KB
base_site.html 4KB
import.html 3KB
date.html 3KB
login.html 3KB
org-detail-homepage.html 3KB
model_list.top_toolbar.exports.html 3KB
model_list.top_toolbar.importexport.export.html 3KB
number.html 3KB
model_delete_selected_confirm.html 2KB
password_reset.html 2KB
model_history.html 2KB
sitemenu_default.html 2KB
change_password.html 2KB
model_list.nav_menu.bookmarks.html 2KB
base.html 2KB
revision_diff.html 2KB
accordion.html 2KB
model_delete_confirm.html 2KB
thumbnails.html 2KB
submit_line.html 2KB
batch_change_form.html 2KB
tabular.html 2KB
base.html 2KB
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