参考https://books.agiliq.com/projects/django-admin-cookbook/en/latest/export.html

在使用Django Admin时, 对于列表我们有时需要提供数据导出功能, 如下图:

增加导出CSV功能

在Django Admin中每个模型的Admin类(继承至admin.ModelAdmin), 我们可以通过actions增加支持的动作, 值为当前类存在的方法名, 例如:

.......@admin.register(Issue)class IssueAdmin(admin.ModelAdmin): ...... actions = ['export_as_csv'] # 增加动作, 对应相应的方法名 def export_as_csv(self, request, queryset): # 具体的导出csv方法的实现 pass export_as_csv.short_description = '导出CSV' # 该动作在admin中的显示文字

导出CSV方法详细实现如下:

def export_as_csv(self, request, queryset): meta = self.model._meta # 用于确定导出的文件名, 格式为: app名.模型类名 field_names = [field.name for field in meta.fields] # 所有属性名 response = HttpResponse(content_type='text/csv') # 指定响应内容类型 response['Content-Disposition'] = f'attachment; filename={meta}.csv' response.charset = 'utf-8-sig' # 可选, 修改编码为带BOM的utf-8格式(Excel打开不会有乱码) writer = csv.writer(response) writer.writerow(field_names) # 将属性名写入csv for obj in queryset: # 遍历要导出的对象列表 row = writer.writerow([getattr(obj, field) for field in field_names]) # 将当前对象的各属性值写入csv return response

由于导出CSV动作可以作为各个模型的通用动作, 我们可以封装成一个Mixin类使用, 完整代码如下:

import csvfrom django.contrib import adminfrom django.http import HttpResponsefrom .models import Issueclass ExportCsvMixin(object): def export_as_csv(self, request, queryset): meta = self.model._meta field_names = [field.name for field in meta.fields] response = HttpResponse(content_type='text/csv') response['Content-Disposition'] = f'attachment; filename={meta}.csv' response.charset = 'utf-8-sig' writer = csv.writer(response) writer.writerow(field_names) for obj in queryset: row = writer.writerow([getattr(obj, field) for field in field_names]) return response export_as_csv.short_description = '导出CSV'@admin.register(Issue)class IssueAdmin(admin.ModelAdmin, ExportCsvMixin): fields = ('key', 'summary', 'status', 'project', 'origin', 'components', 'prj_level', 'prj_category', 'assignee', 'origin_person', 'pm', 'dev_manager', 'test_manager', 'tester', 'fe_dev', 'backend_dev', 'plan_begin', 'plan_end', 'fe_plan_begin', 'fe_plan_end', 'test_plan_begin', 'test_plan_end', 'backend_plan_begin', 'backend_plan_end', 'created', 'reopen', 'prd_begin', 'prd_end', 'dev_begin', 'dev_end', 'test_begin', 'test_end', 'pm_check', 'ready', 'pause', 'done', 'pm_take', 'dev_take', 'test_take', 'total_take', 'tags', ) readonly_fields = fields list_display = ('key', 'summary', 'status', 'origin', 'components', 'created', 'visit') list_filter = ('origin', 'components', 'status', 'tags') search_fields = ('key', 'summary') date_hierarchy = 'created' actions = ['export_as_csv']

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。