python - 您可以将参数添加到 Django 自定义管理操作吗？

Question

例如（不是这种情况，只是为了说明）如果我想添加一个操作以将所选项目中的特定字段设置为 X。是否可以添加一个操作以允许输入 X 而不是硬编码？

Answer 1

请参阅：提供中间页面的操作

您不能直接从更改列表页面执行此操作，但在中间页面上，您可以有一个允许用户输入值的表单，然后将该值用于操作。

Answer 2

It is possible with Django 1.5, though its a little hackish. I am not sure with what other older Django versions it's possible.

You write your own ModelAdmin subclass. ModelAdmin has an attribute called action_form which determines the form shown before Go button on changelist page. You can write your own form, and set it as action_form on your ModelAdmin subclass.

from django import forms
from django.contrib.admin.helpers import ActionForm
# ActionForm is the default form used by Django
# You can extend this class

class XForm(ActionForm):
    x_field = forms.CharField()
    

class YourModelAdmin(admin.ModelAdmin):
    action_form = XForm

With these changes, you will have a CharField, where you can put value for X.

And use x_field in your action function.

def set_x_on_objects(modeladmin, request, queryset):
    for obj in queryset:
        obj.something = request.POST['x_field']
    # do whatever else you want

class YourModelAdmin(admin.ModelAdmin):
    action_form = XForm
    actions = [set_x_on_objects]