第三百九十六节，Django+Xadmin打造上线标准的在线教育平台—其他插件使用说，自定义列表页上传插件
设置后台列表页面字段统计
在当前APP里的adminx.py文件里的数据表管理器里设置
aggregate_fields = {'字段名称':'sum为统计数，min为统计时间'}
class CourseAdmin(object): # 自定义数据表管理器类 # 设置xadmin后台显示字段 list_display = ['name', 'desc', 'detail', 'degree', 'learn_times', 'students', 'fav_nums', 'image', 'click_nums', 'add_time'] # 设置xadmin后台搜索字段，注意：搜索字段如果有时间类型会报错 search_fields = ['name', 'desc', 'detail', 'degree', 'learn_times', 'students', 'fav_nums', 'image', 'click_nums'] # 设置xadmin后台过滤器帅选字段，时间用过滤器来做 list_filter = ['name', 'desc', 'detail', 'degree', 'learn_times', 'students', 'fav_nums', 'image', 'click_nums', 'add_time'] model_icon = 'fa fa-clone' style_fields = {'detail':'ueditor'} # import_excel = True aggregate_fields = {'fav_nums':'sum'} xadmin.site.register(Course, CourseAdmin) # 将数据表注册到xadmin后台显示
自定义列表页上传插件
注册插件APP
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'app_users', # 注册 APP 'app_courses', 'app_organization', 'app_operation', 'xadmin', # 注册xadmin的app 'reversion', 'crispy_forms', # 注册xadmin的依赖app 'captcha', # 注册验证码app 'pure_pagination', # 注册分页app 'DjangoUeditor', # 注册DjangoUeditor的APP 'wen_jian_shang_chuanpy', # 注册上传插件app ]
配置插件上传URL路由逻辑
from extra_apps.wen_jian_shang_chuanpy.shang_chuan_wen_jian import Shang_chuan_wen_jian urlpatterns = [ url(r'^xadmin/', xadmin.site.urls), url(r'^index.html', TemplateView.as_view(template_name='index.html'), name='index'), # 注册 url(r'^register.html', zhu_ce.as_view(), name='register'), url(r'^captcha/', include('captcha.urls'), name='captcha'), url(r'^active/(?P<active_de>.*)/$', active_code.as_view(), name="user_active"), # 登录 url(r'^login.html', TemplateView.as_view(template_name='login.html'), name='login'), url(r'^deng_lu', deng_lu.as_view(), name='deng_lu'), url(r'^logout', logout.as_view(), name='deng_lu'), # 授课机构 url(r'^org_list.html', org_list.as_view(), name='org_list'), # 专门处理静态资源请求映射，也就是media上传文件夹里的请求映射 url(r'media/(?P<path>.*)$', serve, {'document_root': MEDIA_ROOT}), # 配置静态文件访问 # url(r'static/(?P<path>.*)$', serve, {'document_root': STATIC_ROOT}), url(r'course_comment.html', course_comment.as_view(), name='course_comment'), url(r'usercenter_info.html', usercenter_info.as_view(), name='usercenter_info'), # 上传头像 url(r'touxiang/', touxiang.as_view(), name='touxiang'), # 配置DjangoUeditor富文本路由映射 url(r'^ueditor/', include('DjangoUeditor.urls')), # 配置后台上传映射 url(r'^shang_chuan_wen_jian/', Shang_chuan_wen_jian, name='Shang_chuan_wen_jian'), ]
models.py里要上传文件的类里自定义函数，函数里执行插件里的一个函数
class CourseResource(models.Model): course = models.ForeignKey(Course, verbose_name='外键课程表') name = models.CharField(max_length=100, verbose_name='课程资源名称') download = models.FileField(upload_to='course/resource/%Y/%m', storage=ImageStorage(), verbose_name='资源文件', max_length=100) add_time = models.DateTimeField(default=datetime.now, verbose_name='添加日期') class Meta: verbose_name = '课程资源表' verbose_name_plural = verbose_name # 自定义列 def xiougai(self): from extra_apps.wen_jian_shang_chuanpy.shang_chuan_wen_jian import book_hanshu book = book_hanshu(self.download, self.id, 'app_courses', 'CourseResource', 'download') return book # 返回HTML显示到页面 xiougai.short_description = '修改文件' def __str__(self): return self.name
adminx.py里开启插件
class CourseResourceAdmin(object): list_display = ['course', 'name', 'download', 'add_time', 'xiougai'] search_fields = ['course', 'name', 'download'] list_filter = ['course', 'name', 'download', 'add_time'] model_icon = 'fa fa-hdd-o' # list_editable = ['download'] # show_detail_fields = ['download'] shang_chuan_wen_jian = True xadmin.site.register(CourseResource, CourseResourceAdmin)
插件文件shang_chuan_wen_jian.py
#!/usr/bin/env python # -*- coding:utf8 -*- import json from django.shortcuts import render, HttpResponse, redirect from django.views.decorators.csrf import csrf_exempt,csrf_protect from django.utils.safestring import mark_safe # 允许执行html代码 from xadmin.sites import site from xadmin.views import BaseAdminPlugin, ListAdminView, CommAdminView, ModelAdminView from MxOnline import settings from apps.utils.uploadfile import Uploadfile def book_hanshu(download, id, app, models_biao, ziduan): """ :第一个参数，接收上传数据字段的数据库数据 :第二个参数，接收上传数据字段的数据库数据id :第三个参数，接收当前的APP名称 :第四个参数，接收当前数据表的类名 :第五个参数，接收，当前上传字段名称 :return: """ book = """ <div class="modal fade" id="myModal"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal"> <span>×</span></button> <h4 class="modal-title">上传文件</h4></div> <div class="modal-body"> <form method="post" enctype="multipart/form-data"> <div id="yuan_shi" class="alert alert-success"></div> <div id="tishi" class="alert alert-success">请选择您要上传的文件</div> <input id="file" class="btn btn-default" type="file" name="file"/> <input id='app' value="" type="hidden" name="app"/> <input id='models_biao' value="" type="hidden" name="models_biao"/> <input id='n_id' value="" type="hidden" name="n_id"/> <input id='ziduan' value="" type="hidden" name="ziduan"/> <span id="daxiao"></span><br/> <span id="daxiao2"></span><br/> <div id="jdt" class="progress"> <div id="prog" class="progress-bar" style="min-20px; 0%;">0%</div> </div> </form> </div> <div class="modal-footer"> <button id="shch_anllou" type="button" class="btn btn-primary"> 上传文件 </button> </div> </div> </div> </div> <!--data-toggle="modal"声明事件切换类型，modal表示模态框类型(Bootstrap)--> <!--data-target="#myModal">声明事件操作对象，#myModal表示点击后关闭id为#myModal的元素(Bootstrap)--> <span></span> <button n_nr="{download}" n_id='{n_id}' app='{app}' models_biao='{models_biao}' ziduan='{ziduan}' class="btn btn-primary btn-xs xiou_gai" data-toggle="modal" data-target="#myModal"> 点击修改 </button> """.format(download=download, n_id=id, app=app, models_biao=models_biao, ziduan=ziduan) return mark_safe(book) # 上传逻辑 @csrf_exempt def Shang_chuan_wen_jian(request): if request.method == "POST": file = request.FILES.get('file') # 获取上传文件对象 xieru_wjian = Uploadfile('course/resource',file) app = request.POST.get('app') # 获取前台传过来的APP名称 models_biao = request.POST.get('models_biao') # 获取前台传过来的数据表名称 n_id = request.POST.get('n_id') # 获取前台传过来的数据id ziduan = request.POST.get('ziduan') # 获取要修改的字段 # 动态导入数据库模块 orm = __import__('{0}.models'.format(app),models_biao,fromlist=True) pd_models_biao = hasattr(orm,models_biao) # 判断当前数据表是否存在 if pd_models_biao and xieru_wjian: hq_models_biao = getattr(orm,models_biao) # 如果存在，找到数据表类 xieru = {ziduan:xieru_wjian} biao = hq_models_biao.objects.filter(id=n_id).update(**xieru) if biao: return HttpResponse(json.dumps({'url':xieru_wjian})) else: return HttpResponse('数据表不存在') return HttpResponse('') class EditablePlugin(BaseAdminPlugin): shang_chuan_wen_jian = False def init_request(self, *args, **kwargs): return bool(self.shang_chuan_wen_jian) # 在网页头部注入js[列表页，内容页] def block_extrahead(self, context, nodes): js = '<script type="text/javascript" src="{0}"></script>'.format(settings.STATIC_URL + 'shang_chuan_wen_jian.js') # js += '<script type="text/javascript" src="{0}"></script>'.format(settings.STATIC_URL + 'jquery.form.js') nodes.append(js) site.register_plugin(EditablePlugin, ListAdminView) # 列表逻辑
js文件
/** * Created by admin on 2017/9/26. */ jQuery(function ($) { var totalSize = 0; //初始化隐藏进度条 $('#jdt').hide(); //绑定所有type=file的元素的onchange事件的处理函数 //当选定文件时触发函数 $(':file').change(function () { var file = this.files[0]; //假设file标签没打开multiple属性，那么只取第一个文件就行了 name = file.name; size = file.size; type = file.type; url = window.URL.createObjectURL(file); //获取本地文件的url，如果是图片文件，可用于预览图片 //$(this).next().html("文件名：" + name + " 文件类型：" + type + " 文件大小：" + size + " url: " + url); totalSize += size;//字节 var mb = parseInt(totalSize / 1024 / 1024); $("#daxiao").html("总大小: " + totalSize + "-字节"); $("#daxiao2").html("总大小: " + mb + "-mb"); }); //点击修改按钮时触发函数 $('.xiou_gai').click(function () { //获取需要传递到后台的参数 var n_nr = $(this).attr('n_nr'); var n_id = $(this).attr('n_id'); var app = $(this).attr('app'); var models_biao = $(this).attr('models_biao'); var ziduan = $(this).attr('ziduan'); //将参数填充到表单以便提交后台 $('#yuan_shi').text('原始文件：' + n_nr); $('#n_id').val(n_id); $('#app').val(app); $('#models_biao').val(models_biao); $('#ziduan').val(ziduan); }); //向表单区域添加一个form标签 $('#myModal').wrap('<form id="form" method="post" enctype="multipart/form-data">'); $('#form').wrap('<div id="form_zhuti">'); //点击上传按钮后触发函数 $('#shch_anllou').click(function () { var file_zhi = $('#file').val(); if (file_zhi){ upload() }else { $('#tishi').attr('class','alert alert-danger') } }); //点击选择框后恢复提示框颜色 $('#file').click(function () { $('#tishi').attr('class','alert alert-success'); $('#tishi').text('请选择您要上传的文件') }); //ajax提交函数 function upload() { //创建FormData对象，初始化为form表单中的数据。需要添加其他数据可使用formData.append("property", "value"); var formData = new FormData($('#form_zhuti form')[0]); $('#jdt').show(); $.ajax({ url: "/shang_chuan_wen_jian/", type: "POST", data: formData, dataType: 'json', //获取ajaxSettings中的xhr对象，为它的upload属性绑定progress事件的处理函数 xhr: function () { myXhr = $.ajaxSettings.xhr(); //检查upload属性是否存在 if (myXhr.upload) { //绑定progress事件的回调函数 myXhr.upload.addEventListener('progress', progressHandlingFunction, false); } return myXhr; //xhr对象返回给jQuery使用 }, success: function (result) { //返回json格式，里面是上传成功后的URL // alert(result.url); $('#yuan_shi').text(result.url); $('#tishi').text('恭喜上传成功！'); $('#tishi').attr('class','alert alert-info'); $('#tishi').attr({'style':'font-size:20px;font-weight:bold;'}); //睡眠 setTimeout(function () { // window.location.reload(); //刷新浏览器 top.location.reload(); //刷新页面 }, 2000); }, contentType: false, //必须false才会自动加上正确的Content-Type processData: false, //必须false才会避开jQuery对 formdata 的默认处理 error:function (xhr, status, info){ $('#tishi').attr('class','alert alert-danger'); $('#tishi').text('遗憾上传出错了') } }); } //上传进度回调函数： function progressHandlingFunction(e) { if (e.lengthComputable) { var percent = e.loaded / e.total * 100; var bfbi = percent.toFixed(2) + "%"; $('#prog').attr("style", '' + bfbi); //更新数据到进度条 $('#prog').html(bfbi); // $('#daxiao3').html(e.loaded + "/" + e.total+" bytes. " + percent.toFixed(2) + "%"); } } //当上传框关闭后触发 $('#myModal').on('hide.bs.modal', function () { //当模态框关闭是清空表单和参数 $('#yuan_shi').text(''); $('#n_id').val(''); $('#app').val(''); $('#models_biao').val(''); $('#file').val(''); $('#daxiao').text(''); $('#daxiao2').text(''); $('#jdt').hide(); $('#prog').attr("style", {'width': 0}); //更新数据到进度条 $('#prog').html(0); $('#tishi').attr('class','alert alert-success'); $('#ziduan').val(''); }); });
最终效果
补充：adminx.py 注册管理器，接收每次后台提交的请求，进行逻辑处理
# 录音作品 class app_zuopinAdmin(object): # 设置xadmin后台显示字段 list_display = ['id', 'title', 'psrc', 'lu_yin_shang_chuan', 'yangsrc', 'yamg_yin_shit', 'shen_chen_yang_yin'] # 设置xadmin后台搜索字段，注意：搜索字段如果有时间类型会报错 search_fields = ['id', 'title', 'des', 'key', 'psrc'] # # 设置xadmin后台过滤器帅选字段，时间用过滤器来做 list_filter = ['title', 'des', 'key', 'xing_bie', 'yu_zhong', 'ti_cai', 'shi_jian'] def post(self, request, *args, **kwargs): 逻辑处理
# 一定要这样返回，否则会出错 return super(app_zuopinAdmin, self).post(request, *args, **kwargs) # 管理器重写后重新注册 xadmin.site.register(Zuopin, app_zuopinAdmin)