Modifying django object model for better admin CRUD management - django

Question

I am writing a blog app using django 1.10
This is a snippet of my object model:
model.py
class Attachment(models.Model):
title = models.CharField(max_length=50)
image = models.ImageField(upload_to='attachments')
class FileAttachments(models.Model):
title = models.CharField(max_length=50)
attachments = models.ManyToManyField(Attachment)
class Post(models.Model):
title = models.CharField(max_length=200)
text = models.CharField(max_length=2000)
file_attachments = models.ForeignKey(FileAttachments, blank=True, null=True)
slug = models.SlugField(max_length=40, default='', unique=True)
author = models.ForeignKey(User, default=1)
pub_date = models.DateTimeField(blank=True, null=True)
def get_absolute_url(self):
return "/blog/%s/%s/%s/%s/" % (self.pub_date.year, self.pub_date.month, self.pub_date.day, self.slug)
def __unicode__(self):
return self.title
class Meta:
verbose_name = "Blog Post"
verbose_name_plural = "Blog Posts"
ordering = ["-create_date"]
permissions = (
( "create", "Create Post" ),
( "modify", "Modify Post" ),
( "delete", "Delete Post" ),
)
(simplified) admin.py:
class PostAdmin(admin.ModelAdmin):
prepopulated_fields = {"slug": ("title",)}
exclude = ('author',)
def save_model(self, request, obj, form, change):
obj.author = request.user
obj.save()
# Register your models here.
admin.site.register(Post, PostAdmin)
when I try to access the Post object via the admin page - in the list view, I only see 'Post object' - whereas I want to see the title of the post (and possibly, a few other attributes of the Post object) - how do I modify the admin view to achieve this?

Answer 1

For your first problem - you need to define list_display in your PostAdmin, like that:
class PostAdmin(admin.ModelAdmin):
prepopulated_fields = {"slug": ("title",)}
exclude = ('author',)
list_display = ('title', 'pub_date')
As for your second problem - please stick to the 'One post, one problem' rule; hint - ForeignKey means only one FileAttachment can be related to your Post.

Answer 2

Change __unicode__ for __str__ in your Post class and print whatever you want. For example: return "Blog %s published on %s" %(self.title, self.pub_date).
Your Post model only includes one attachment through a foreign key. That way it will be impossible to upload more than one file. In other words, you have to change your models, for example including a key in FileAttachments relating to a Post and removing the key from Post model.
Hope this helps.