在Django管理的change_form兩個型字段之間添加自定義HTML

Question

比方說，我有兩個型號：

class Book(models.Model): 
    name = models.CharField(max_length=50) 
    library = models.ForeignKeyField('Library') 

class Library(models.Model): 
    name = models.CharField(max_length=50) 
    address = models.CharField(max_length=50) 
    tel = models.CharField(max_length=50) 

有一個很好的方式，在名稱和地址之間添加一些HTML（只讀輸入字段）圖書館change_form模板？我正在重寫admin/includes/fieldset.html，但它變得混亂，我無法找到一種方法來顯示HTML完全在我想要的地方。例如，如果我想添加HTML顯示，該庫具有以下名稱字段竟被我做這個的書量：

{% for field in line %} 
    ... 
    {% if field.field.name == 'name' %} 
     {{ field.field }} 
     <div class="form-row total_books"> 
      <div> 
       <label for="total_books">Total books:</label> 
       <input type="text" maxlength="10" name="totbooks" id="totbooks" readonly="readonly"> 
      </div> 
     </div> 
    {% else %} 
     {{ field.field }} 
    {% endif %} 
    ... 
{% endfor %} 

新的解決方案：

我已經找到了一種更好的方式我想，但我不知道爲什麼我會收到此錯誤：「PresupuestoAdmin.readonly_fields 1，'name'不是可調用的或PresupuestoAdmin的屬性'或在模型'Presupuesto'中找到的」。看起來'name'字段沒有添加到管理員使用的表單中。

class FoooAdminForm(forms.ModelForm): 
    name = models.CharField(max_length=100) 
    class Meta: 
     model = Foo 

class FooAdmin(admin.ModelAdmin): 
    form = FooAdminForm 
    fieldsets = ( 
     (None, { 'fields': ('id', 'name', 'date')}), 
    ) 
    readonly_fields = ('id', 'name') 

admin.site.register(Foo, FooAdmin) 

Answer 1

class FooAdminForm(forms.ModelForm): 
    name = forms.CharField(max_length=100, 
       widget=forms.TextInput(attrs={'readonly': 'readonly'})) 

    def __init__(self, *args, **kwargs): 
     super(FooAdminForm, self).__init__(*args, **kwargs) 
     self.fields['name'].required = False 
     if kwargs.has_key('instance'): 
      instance = kwargs['instance'] 
      # do something with the instance here if you want 

    class Meta: 
     model = Foo 

class FooAdmin(admin.ModelAdmin): 
    form = FooAdminForm 

    fieldsets = (
     (None, { 
      'fields': ('id', 'name',),}) 
    ) 
    readonly_fields = ('id',) 

Answer 2

這可能不是給你你需要什麼，但你可以在模型Foo加給你的admin.py覆蓋部件爲外地bar：

from django import forms 
from django.contrib import admin 
from django.contrib.admin import site 
from django.contrib.admin.widgets import AdminTextInputWidget 
from django.utils.safestring import mark_safe 
from models import Foo 

class AdminFooWidget(AdminTextInputWidget): 
    def render(self, name, value, attrs=None): 
     s = super(AdminTextInputWidget, self).render(name, value, attrs) 
     return mark_safe(s+u'<br/><b>Hello world!</b>') 

class FooAdminForm(forms.ModelForm): 
    def __init__(self, *args, **kwargs): 
     super(FooAdminForm, self).__init__(*args, **kwargs) 
     self.fields['bar'].widget = AdminFooWidget() 

class FooAdmin(admin.ModelAdmin): 
    form = FooAdminForm  

site.register(Foo, FooAdmin) 

Answer 3

模型。 py：

class Library(models.Model): 
    name = models.CharField(max_length=50) 
    address = models.CharField(max_length=50) 
    tel = models.CharField(max_length=50) 

    def book_count(self): 
     return self.book_set.count() 

admin.py：

class LibraryAdmin(admin.ModelAdmin): 
    fieldsets = ( 
     (None, { 'fields': ('name', 'book_count', 'address', 'tel')}), 
    ) 
    readonly_fields = ('book_count',) 

admin.site.register(Library, LibraryAdmin)