111 lines
3.8 KiB
Python
111 lines
3.8 KiB
Python
import csv
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import datetime
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from django.http import HttpResponse
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from django.utils.encoding import escape_uri_path
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def export_to_csv(modeladmin, request, queryset):
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"""
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通用导出 CSV 的 Admin Action
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支持中文编码（UTF-8 BOM），可直接用 Excel 打开
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"""
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opts = modeladmin.model._meta
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# 设置文件名，使用模型的 verbose_name
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filename = f"{opts.verbose_name}_{datetime.datetime.now().strftime('%Y%m%d_%H%M%S')}.csv"
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response = HttpResponse(content_type='text/csv; charset=utf-8-sig')
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response['Content-Disposition'] = f'attachment; filename={escape_uri_path(filename)}'
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writer = csv.writer(response)
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# 获取所有非多对多字段和非反向关联字段
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fields = [field for field in opts.get_fields() if not field.many_to_many and not field.one_to_many]
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# 写入表头 (使用字段的 verbose_name)
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writer.writerow([field.verbose_name for field in fields])
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# 写入数据
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for obj in queryset:
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data_row = []
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for field in fields:
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value = getattr(obj, field.name)
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# 处理 Choice 字段，显示可读的标签
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if hasattr(obj, f'get_{field.name}_display'):
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value = getattr(obj, f'get_{field.name}_display')()
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# 处理关联对象（ForeignKey）
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if field.is_relation and value:
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value = str(value)
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# 处理日期时间
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if isinstance(value, datetime.datetime):
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value = value.strftime('%Y-%m-%d %H:%M:%S')
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elif isinstance(value, datetime.date):
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value = value.strftime('%Y-%m-%d')
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# 处理 None
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if value is None:
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value = ""
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data_row.append(str(value))
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writer.writerow(data_row)
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return response
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export_to_csv.short_description = "导出选中项为 CSV"
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def export_to_excel(modeladmin, request, queryset):
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"""
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导出为 Excel (需要安装 openpyxl)
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"""
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try:
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from openpyxl import Workbook
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except ImportError:
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modeladmin.message_user(request, "请先安装 openpyxl 库以使用 Excel 导出功能: pip install openpyxl", level='error')
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return
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opts = modeladmin.model._meta
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filename = f"{opts.verbose_name}_{datetime.datetime.now().strftime('%Y%m%d_%H%M%S')}.xlsx"
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response = HttpResponse(
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content_type='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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)
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response['Content-Disposition'] = f'attachment; filename={escape_uri_path(filename)}'
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wb = Workbook()
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ws = wb.active
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# Sheet name limit is 31 chars
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ws.title = str(opts.verbose_name)[:31]
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fields = [field for field in opts.get_fields() if not field.many_to_many and not field.one_to_many]
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# 写入表头
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ws.append([str(field.verbose_name) for field in fields])
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# 写入数据
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for obj in queryset:
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row = []
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for field in fields:
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value = getattr(obj, field.name)
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if hasattr(obj, f'get_{field.name}_display'):
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value = getattr(obj, f'get_{field.name}_display')()
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# 处理关联对象（ForeignKey）
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if field.is_relation and value:
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value = str(value)
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if isinstance(value, (datetime.datetime, datetime.date)):
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# openpyxl 可以直接处理 datetime 格式，Excel 会自动识别
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# 但为了避免时区问题，通常转为无时区时间或字符串
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if isinstance(value, datetime.datetime):
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value = value.replace(tzinfo=None)
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row.append(value)
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ws.append(row)
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wb.save(response)
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return response
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export_to_excel.short_description = "导出选中项为 Excel"
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