如何在django admin中使用選項中的查詢設置子頁面

Question

我在嘗試使選擇器將頁面設置爲子頁面。我現在的代碼不起作用。如果頁面設置爲子頁面，我想存儲父頁面的ID。我認爲我的方式沒有道理，但我不知道另一種解決方案。錯誤是「沒有模塊命名頁面」。感謝您的幫助：d

import datetime 
from django.db import models 
from django.utils import timezone 
from ckeditor.fields import RichTextField 
from django.template.defaultfilters import slugify 
from autoslug import AutoSlugField 
from models.pages import Page 

class Page(models.Model): 
    all_objects = Page.objects.all() 
    parent_page = [(0, 'Main page')] 
    parent_page = parent_page.extend([(x.id, x.page_title) for x in all_objects]) 

    page_title = models.CharField(max_length=200) 
    admin_title = models.CharField(max_length=200, blank = True) 
    sub_page = models.IntegerField(default = 0, choises = parent_page) 
    content = RichTextField(blank = True) 
    slug = AutoSlugField(blank = True, populate_from='page_title', unique=True, editable=True) 
    pub_date = models.DateTimeField('date published') 
    view_status = models.IntegerField(default=1, choices=[(1, 'Active'), (2, 'Active, not displayed in menu'), (3, 'Inactive')]) 

    def __str__(self): 
     return self.page_title 

Answer 1

我會實現你想要的東西是這樣的：

import datetime 

from django.db import models 
from django.template.defaultfilters import slugify 
from django.utils import timezone 

from autoslug import AutoSlugField 
from ckeditor.fields import RichTextField 

VIEW_STATUS_CHOICES = [ 
    (1, 'Active'), 
    (2, 'Active, not displayed in menu'), 
    (3, 'Inactive') 
] 

class Page(models.Model): 
    parent_page = models.ForeignKey('self') 
    page_title = models.CharField(max_length=200) 
    admin_title = models.CharField(max_length=200, blank = True) 
    sub_page = models.IntegerField(default = 0, choices = parent_page) 
    content = RichTextField(blank = True) 
    slug = AutoSlugField(blank = True, populate_from='page_title', 
         unique=True, editable=True) 
    pub_date = models.DateTimeField('date published') 
    view_status = models.IntegerField(default=1, choices=VIEW_STATUS_CHOICES) 

    #Some helper methods 
    def get_children(self): 
     return Page.objects.filter(parent_page=self) 

    def has_children(self): 
     return get_children.count() > 0 

    def __str__(self): 
     return self.page_title