Django管理员表单错误，即使存在，也永远不会保存外键

Question

我知道标题令人困惑，但让我解释一下。我目前正在为django + django-cms项目实现一个小的wiki apphook。我正在尝试向维基添加部分，维基页面可以存在的部分是特定的部分，允许一些结构。

这是我的model.py：

from django.db import models
from djangocms_text_ckeditor.fields import HTMLField

class WikiPage(models.Model):
    slug = models.SlugField(max_length=50,primary_key=True)
    name = models.CharField(max_length=50)
    content = HTMLField(blank=True)
    section = models.ForeignKey('WikiSection', related_name='pages', db_index=True)

    def __str__(self):
        return self.name


class WikiSection(models.Model):
    slug = models.SlugField(max_length=50, primary_key=True)
    name = models.CharField(max_length=50)

    def __str__(self):
        return self.name

这是我的admin.py：

from django.contrib import admin
from .models import WikiPage, WikiSection
from django import forms
from forms import WikiPageForm, WikiSectionForm

class WikiPageAdmin(admin.ModelAdmin):
    form = WikiPageForm

admin.site.register(WikiPage, WikiPageAdmin)

class WikiSectionAdmin(admin.ModelAdmin):
    form = WikiSectionForm

admin.site.register(WikiSection, WikiSectionAdmin)

忽略了可怕的重要性，我知道。

这是我的forms.py：

from django import forms
from .models import WikiPage, WikiSection

class WikiPageForm(forms.ModelForm):
    class Meta:
        model = WikiPage
        exclude = ['slug']

    def clean(self):
        cleaned_data = super(WikiPageForm, self).clean()
        print cleaned_data



class WikiSectionForm(forms.ModelForm):
    class Meta:
        model = WikiSection
        exclude = ['slug']

现在，当我尝试填写字段并保存管理表单时，它总是告诉我部分字段是必需的，即使我填写了字段。我也意识到clean（）方法中没有该字段。这是它打印的内容：

{'content': u'<p>sdfsdf</p>\r\n', 'name': u'fdfsdf'}

修改 我也检查了数据并没有在POST中发送

Answer 1

哇，我这么愚蠢的错误。由于我从两个模型中排除了slug字段，我需要覆盖save方法并为对象提供一个slug。现在我修改了models.py：

from django.db import models
from django.utils.text import slugify
from djangocms_text_ckeditor.fields import HTMLField

class WikiPage(models.Model):
    slug = models.SlugField(max_length=50,primary_key=True)
    name = models.CharField(max_length=50)
    content = HTMLField(blank=True)
    section = models.ForeignKey('WikiSection', related_name='pages', db_index=True)

    def __str__(self):
        return self.name

    <!-- ADDED THIS -->
    def save(self, *args, **kwargs):
        self.slug = slugify(self.name)
        super(WikiPage, self).save(*args, **kwargs)
    <!-- ADDED THIS -->


class WikiSection(models.Model):
    slug = models.SlugField(max_length=50, primary_key=True)
    name = models.CharField(max_length=50)

    def __str__(self):
        return self.name


    <!-- AND THIS -->
    def save(self, *args, **kwargs):
        self.slug = slugify(self.name)
        super(WikiSection, self).save(*args, **kwargs)
    <!-- AND THIS -->