Databases
StackOverflow2013
Postsdbo
POdjango - Get a set of objects from different models field names
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POdjango - Get a set of objects from different models field names
    primarykey
    data
    text
    <p>Please have a look at my models.</p> <pre><code>class BackgroundImage(models.Model): user = models.ForeignKey(User) image = models.ImageField(upload_to=get_upload_file_name) caption = models.CharField(max_length=200) pub_date = models.DateTimeField(default=datetime.now) class ProfilePicture(models.Model): user = models.ForeignKey(User) image = models.ImageField(upload_to=get_upload_file_name) caption = models.CharField(max_length=200) pub_date = models.DateTimeField(default=datetime.now) class Album(models.Model): user = models.ForeignKey(User) name = models.CharField(max_length=200) pub_date = models.DateTimeField(default=datetime.now) class Meta: ordering = ['-pub_date'] verbose_name_plural = ('Albums') def __unicode__(self): return self.name class Photo(models.Model): user = models.ForeignKey(User) album = models.ForeignKey(Album, default=3) image = models.ImageField(upload_to=get_upload_file_name) caption = models.CharField(max_length=200) pub_date = models.DateTimeField(default=datetime.now) </code></pre> <p>How do I get all the images of <code>Photo</code>, <code>ProfilePicture</code> and <code>BackgroundImage</code> from their <code>image field</code> in one set. And then filter them by <code>-pub_date</code> to display in the template? Please help me out. Will be much much appreciated! Thank you.</p> <p><strong>Edit</strong></p> <p>N.B: I need <code>ProfilePicture</code> and <code>BackgroundImage</code> to work with the <code>UserProfile</code> like this:</p> <pre><code>from django.db import models from django.contrib.auth.models import User from profile_picture.models import ProfilePicture from background_image.models import BackgroundImage class UserProfile(models.Model): user = models.OneToOneField(User) permanent_address = models.TextField() temporary_address = models.TextField() profile_pic = models.ForeignKey(ProfilePicture) background_pic = models.ForeignKey(BackgroundImage) def __unicode__(self): return self.user.username User.profile = property(lambda u: UserProfile.objects.get_or_create(user=u)[0]) </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USAamu
    1. USAamu
    plurals
    1. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POdjango - Get a set of objects from different models field names
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POdjango - Get a set of objects from different models field names
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIs it apropriate to create base model class? Say `BaseImage(models.Model)` with `user`, `image`, `caption`, `pub_date` fields and then create other models like `BackgroundImage(BaseImage)`.
      singulars
      1. POdjango - Get a set of objects from different models field names
      1. UStwil
    2. COYes, I tried that way. But I don't remember why, for some reason there were too many errors. Can I do for loop and get the list of images from each set, and then add them together?
      singulars
      1. POdjango - Get a set of objects from different models field names
      1. USAamu
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload