xadmin导入excel插件拓展

1、在/site-packages/xadmin/plugins中新增excel.py文件

文件内容：

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import xadmin   from xadmin.views import BaseAdminPlugin, ListAdminView   from django.template import loader   from  xadmin.plugins.utils import get_context_dict   class ListImportExcelPlugin(BaseAdminPlugin):       import_excel = False       def init_request(self, *args, **kwargs):           return bool(self.import_excel)       def block_top_toolbar(self, context, nodes):           nodes.append(               loader.render_to_string('xadmin/excel/model_list.top_toolbar.import.html', get_context_dict(context)))   xadmin.site.register_plugin(ListImportExcelPlugin, ListAdminView)

注意：Django2.0以后rander_to_string的第二个参数必须为dict格式，导入了get_context_dict方法，将context转换

2、将execl.py插件注册到xadmin的plugins中，修改site-packages/xadmin/plugins的__init__.py，

3、创建导入模板
xadmin/excel/model_list.top_toolbar.import.html

文件内容：
 

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{% load i18n %}   <div class="btn-group export">     <a class="dropdown-toggle btn btn-default btn-sm" data-toggle="dropdown" href="#">       <i class="icon-share">i> 导入 <span class="caret">span>     a>     <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">         <li><a data-toggle="modal" data-target="#export-modal-import-excel"><i class="icon-circle-arrow-down">i> 导入 Excela>li>     ul>       <script>           function fileChange(target){               var imgName = document.all.submit_upload.value;               var ext,idx;               if (imgName == ''){                   document.all.submit_upload_b.disabled=true;                   alert("请选择需要上传的 xls 文件!");                   return;               } else {                   idx = imgName.lastIndexOf(".");                   if (idx != -1){                       ext = imgName.substr(idx+1).toUpperCase();                       ext = ext.toLowerCase( );                       if (ext != 'xls' && ext != 'xlsx'){                           document.all.submit_upload_b.disabled=true;                           alert("只能上传 .xls 类型的文件!");                           return;                       }                   } else {                       document.all.submit_upload_b.disabled=true;                       alert("只能上传 .xls 类型的文件!");                       return;                   }               }           }       script>       <div id="export-modal-import-excel" class="modal fade">         <div class="modal-dialog">           <div class="modal-content">             <form method="post" action="" enctype="multipart/form-data">                 {% csrf_token %}             <div class="modal-header">               <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×button>               <h4 class="modal-title">导入 Excelh4>             div>             <div class="modal-body">                  <input type="file" name="excel" id="submit_upload">             div>             <div class="modal-footer">               <button type="button" class="btn btn-default" data-dismiss="modal">{% trans "Close" %}button>               <button class="btn btn-success" type="submit" id="submit_upload_b"><i class="icon-share">i> 导入button>             div>             form>           div>         div>       div>   div>

4.在Django项目的配置文件INSTALLED_APP中添加xadmin和crispy_froms
5.在应用中新建adminx.py文件，后台管理模型如需导入excel文件的，设置import_excel=True，则在该模型类的后台管理页面出现导入按钮