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 Sum
class 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，完成所有这些操作后，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')
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