Django xadmin 后台自定义action 动作

adminx.py

from xadmin import views
from .models import *
# 自定义动作所需
from django import forms, VERSION as django_version
from django.core.exceptions import PermissionDenied
from django.db import router
from django.template.response import TemplateResponse
from django.utils.encoding import force_text
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext as _
from django.contrib.admin.utils import get_deleted_objects
from xadmin.util import model_ngettext
from xadmin.views.base import filter_hookACTION_CHECKBOX_NAME = '_selected_action'
checkbox = forms.CheckboxInput({'class': 'action-select'}, lambda value: False)
print(checkbox)def action_checkbox(obj):return checkbox.render(ACTION_CHECKBOX_NAME, force_text(obj.pk))action_checkbox.short_description = mark_safe('<input type="checkbox" id="action-toggle" />')
action_checkbox.allow_tags = True
action_checkbox.allow_export = False
action_checkbox.is_column = False# 继承基本动作模板
from xadmin.plugins.actions import BaseActionViewclass MySelectedAction(BaseActionView):# 这个是执行函数名action_name = "update_selected"# 这个是显示的名字description = "更新所選項"# 这里是是否启用自定义模板delete_confirmation_template = Nonedelete_selected_confirmation_template = Nonedelete_models_batch = Truemodel_perm = 'delete'icon = 'fa fa-times'@filter_hook# 对数据的操作def update_models(self, queryset):print(self.request.POST.get('waiter_id'))print(self.request.POST.get('post'))print(type(queryset))print(queryset)n = queryset.count()if n:if self.delete_models_batch:self.log('update', _('Batch delete %(count)d %(items)s.') % {"count": n, "items": model_ngettext(self.opts, n)})queryset.update(waiter_id=self.request.POST.get('waiter_id'))else:for obj in queryset:self.log('update', '', obj)obj.update(waiter_id=self.request.POST.get('waiter_id'))self.message_user(_("Successfully deleted %(count)d %(items)s.") % {"count": n, "items": model_ngettext(self.opts, n)}, 'success')@filter_hookdef do_action(self, queryset):# Check that the user has delete permission for the actual modelif not self.has_delete_permission():raise PermissionDeniedusing = router.db_for_write(self.model)if django_version > (2, 0):setattr(self.admin_site._registry[self.model], 'has_delete_permission', self.has_delete_permission)# Populate deletable_objects, a data structure of all related objects that# will also be deleted.if django_version > (2, 0):deletable_objects, model_count, perms_needed, protected = get_deleted_objects(queryset, self.opts, self.admin_site)else:deletable_objects, model_count, perms_needed, protected = get_deleted_objects(queryset, self.opts, self.user, self.admin_site, using)# The user has already confirmed the deletion.# Do the deletion and return a None to display the change list view again.if self.request.POST.get('post'):# 这里输出yes# print(self.request.POST.get('post'))if perms_needed:raise PermissionDeniedself.update_models(queryset)# Return None to display the change list page again.return Noneif len(queryset) == 1:objects_name = force_text(self.opts.verbose_name)else:objects_name = force_text(self.opts.verbose_name_plural)if perms_needed or protected:title = _("Cannot delete %(name)s") % {"name": objects_name}else:title = _("Are you sure?")import pymysql# 打开数据库连接db = pymysql.connect(host="*", user="*",password="*", db="*", port=3306)cur = db.cursor()sql = "*"try:cur.execute(sql)  # 执行sql语句results = cur.fetchall()  # 获取查询的所有记录except Exception as e:raise efinally:db.close()  # 关闭连接context = self.get_context()# 展现到页面的内容print(type(results))print(type(queryset))print(results)print(queryset)context.update({"title": title,"objects_name": objects_name,"deletable_objects": [deletable_objects],'queryset': queryset,'results':results,"perms_lacking": perms_needed,"protected": protected,"opts": self.opts,"app_label": self.app_label,'action_checkbox_name': ACTION_CHECKBOX_NAME,})# Display the confirmation page# 确认页的相关参数return TemplateResponse(self.request, self.delete_selected_confirmation_template orself.get_template_list('views/youji_update.html'), context)#使用主题
class BaseSeting(object):enable_themes = Trueuse_bootswatch = True
xadmin.site.register(views.BaseAdminView,BaseSeting)# 设置头部底部
class GlobaleSettings(object):site_title = 'title'site_footer = 'footer'menu_style = 'accordion'
xadmin.site.register(views.CommAdminView,GlobaleSettings)class TxhAdmin(object):# 搜索项search_fields = ['name','addtime']# 过滤项list_filter=['addtime']# 显示的列list_display=('name','phone','sex','is_reg','addtime','visit_type_content','waiter_id')actions=[MySelectedAction,]# 注册使之显示在后台中
xadmin.site.register(white_list,TxhAdmin)

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