使用Django admin的自定义列

使用Django admin的自定义列

您可以将

Model

或

ModelAdmin

作为的项目使用方法

list_display

。参见：https
:
//docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.list_display

由于这些方法在管理员外部也可能有用，因此建议您将它们添加到

Model

。

from django.db.models import Sumclass Data(models.Model):    ...    # Method used by `get_current_year_sales` and `get_last_year_sales`    # to stay DRY. Not for use directly in admin.    def get_year_sales(self, year):        qs = self.model._default_manager.filter(year=year)        sales_agg = qs.aggregate(Sum('sales'))        return sales_agg['sales__sum']    # Method used by `get_current_quarter_sales` and `get_last_quarter_sales`    # to stay DRY. Not for use directly in admin.    def get_quarter_sales(self, year, quarter):        qs = self.model._default_manager.filter(year=year, quarter=quarter)        sales_agg = qs.aggregate(Sum('sales'))        return sales_agg['sales__sum']    def get_current_year_sales(self):        return self.get_year_sales(datetime.now().year)    get_current_year_sales.short_description = 'Sales (Current Year)'    def get_last_year_sales(self):        return self.get_year_sales(datetime.now().year-1)    get_last_year_sales.short_description = 'Sales (Last Year)'    def get_current_quarter_sales(self):        # Determine current quarter logic here as `current_quarter`        # `quarter_year` will likely be same as current year here,        # but will need to be calculated for previous quarter        return self.get_quarter_sales(quarter_year, current_quarter)    get_current_quarter_sales.short_description = 'Sales (Current Quarter)'    def get_current_quarter_sales(self):        # Logic here to determine last quarter as `last_quarter`        # Logic to determine what year last quarter was in as `quarter_year`        return self.get_quarter_sales(quarter_year, last_quarter)    get_last_quarter_sales.short_description = 'Sales (Last Quarter)'

该

short_description

属性确定管理员将显示为这些方法的行标题的内容。因此，完成所有这些 *** 作后，只需修改

ModelAdmin

的

list_display

属性，例如：

class DataAdmin(admin.ModelAdmin):    ...    list_display = ('subject', 'get_current_year_sales', 'get_last_year_sales', 'get_current_quarter_sales', 'get_last_quarter_sales')