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覆盖多个表格行的表单小部件和/或表单

django-admin django

0

Hameer Abbasi · 技术社区 · 8 年前

假设我有两个模型,如下所示(示例来自 Django Docs )

from django.db import models

class Person(models.Model):
    name = models.CharField(max_length=128)

class Group(models.Model):
    name = models.CharField(max_length=128)
    members = models.ManyToManyField(Person, related_name='groups')

以及以下管理面板:

from django.contrib import admin

class MembershipInline(admin.TabularInline):
    model = Group.members.through

class PersonAdmin(admin.ModelAdmin):
    inlines = [
        MembershipInline,
    ]

class GroupAdmin(admin.ModelAdmin):
    inlines = [
        MembershipInline,
    ]
    exclude = ('members',)

Person s、但很少 Group s、所以对于 s、我可以使用默认小部件,但我需要一个自定义小部件 人 在…内 GroupAdmin .

我的问题是 MembershipInline ,如何修改它以使 人 的小部件是否被覆盖?我知道这是可能的 django-autocomplete-light 对于 ForeignKey admin.TabularInline s、但是我该如何修改它来为 ManyToMany 管理制表符 s换句话说,如何以一种方式修改表单,而不以另一种方式修改表单?

1 回复 | 直到 8 年前

1

Hameer Abbasi 8 年前

我首先需要把 ManyToMany 桌子

from django.db import models

class Person(models.Model):
    name = models.CharField(max_length=128)
    groups = models.ManyToManyField('Group', through='Membership')

class Group(models.Model):
    name = models.CharField(max_length=128)
    members = models.ManyToManyField('Person', through='Membership')

class Membership(models.Model):
    person = models.ForeignKey(Person, on_delete=models.PROTECT)
    group = models.ForeignKey(Group, on_delete=models.PROTECT)

然后我需要像这样创建内联:

from django.contrib import admin
from .models import *
from .forms import *

class MembershipInline(admin.TabularInline):
    model = Membership
    form = MembershipForm

class PersonAdmin(admin.ModelAdmin):
    inlines = [
        MembershipInline,
    ]

class GroupAdmin(admin.ModelAdmin):
    inlines = [
        MembershipInline,
    ]

然后,在 forms.py ,

from django import forms
from .models import *

class MembershipForm(forms.ModelForm):
    class Meta:
        model = Membership
        exclude = ()
        widgets = {
            'person': whatever_widget_i_want
        }

这个 TabularInline 类将负责为我删除不需要的字段小部件。