Django import export导入导出 Django import export实现数据库导入导出方式
一天一点到 人气:0使用django-import-export库,导入导出数据,支持csv、xls、json、html等格式
官网:http://django-import-export.readthedocs.io/en/latest/installation.html
1、安装django-import-export
pip install django-import-export
2、配置settings.py
INSTALLED_APPS = ( 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'customer', 'publisher', 'import_export', )
执行命令: python manage.py collectstatic
3、models.py 建立model
class Author(models.Model): name = models.CharField(max_length=100) def __unicode__(self): return self.name class Category(models.Model): name = models.CharField(max_length=100) def __unicode__(self): return self.name class Book(models.Model): name = models.CharField('Book name', max_length=100) author = models.ForeignKey(Author, blank=True, null=True) author_email = models.EmailField('Author email', max_length=75, blank=True) imported = models.BooleanField(default=False) published = models.DateField('Published', blank=True, null=True) price = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True) categories = models.ManyToManyField(Category, blank=True) def __unicode__(self): return self.name
4、在admin.py 创建Resource、对应的Admin
from import_export import resources from core.models import Book from import_export.admin import ImportExportModelAdmin class BookResource(resources.ModelResource): class Meta: model = Book export_order = ('id', 'name', 'author', 'author_email', 'imported', 'click', 'published', 'price', 'categories') @admin.register(Book) class BookAdmin(ImportExportModelAdmin): list_display = ('name', 'author', 'author_email', 'imported', 'published', 'price', 'categories') search_fields = ('name', 'author','published') date_hierarchy = 'date' resource_class = BookResource
export_order:设置导出字段的顺序
5、Django界面实现导入导出
自定义导出 方式 action 这种方式也推荐
import xlwt #导出Excel from django.http import StreamingHttpResponse class AdminReport(admin.ModelAdmin): actions = ["saveexecl"] # 自定义的action(导出到excel表格) list_display = ("id",'offer','day_time', 'idfa', 'submit_result_text', 'callback_result_text') # 显示的列 search_fields = ('day_time','callback_result_text') # 可以搜索的字段 date_hierarchy = 'day_time' # 按照日期显示 list_filter = ('offer',) # 过滤条件 list_per_page = 500 # 每页显示500条,太多了可能会出现服务器崩掉的情况 def saveexecl(self,request,queryset): Begin = xlwt.Workbook() sheet = Begin.add_sheet("response") cols = 0 for query in queryset: # you need write colms # 好像有个方法可以一次性写入所有列,记不清了,只能用这种简单的方法去实现 sheet.write(cols,1,str(query.idfa)) # 写入第一列 sheet.write(cols,2,str(query.day_time)) # 写入第二列 sheet.write(cols,3,str(query.keyword)) # 写入第三列 cols += 1 Begin.save("%s" %(filename)) def file_iterator(filename,chuck_size=512): with open(filename,"rb") as f: while True: c = f.read(chuck_size) if c: yield c else: break response = StreamingHttpResponse(file_iterator(filename)) response['Content-Type'] = 'application/octet-stream' response['Content-Disposition'] = 'attachment;filename="{}"'.format("result.xls") return response saveexecl.short_description = "导出Excel" # 按钮显示名字 admin.site.register(Report, AdminReport) # 注册到admin
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