And how do I copy these images from one model to another?
On Wed, Nov 6, 2013 at 1:40 AM, Rafael E. Ferrero
<rafael.ferr...@gmail.com>wrote:
> if you see many similarities between two models will surely are the same
> thing. So BackgroundImage and ProfilePicture are the same thing and Photo
> its very similar to. I think you must to use inheritance of models [1] an
> use choices [2] for distinct types of pics
>
> I would do the following:
>
> class Pics(models.Model):
> PICS_TYPES = (
> ('PHOTOS', 'Photos'),
> ('BACKGROUNDS', 'Backgrounds'),
> ('PROFILES', 'Profiles')
> )
> 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)
> type = models.CharField(max_length=50, choices=PICS_TYPES)
>
>
> class Album(models.Model):
> user = models.ForeignKey(User)
> name = models.CharField(max_length=200)
> pub_date = models.DateTimeField(default=datetime.now)
>
>
> class Photo(Pics):
> album = models.ForeignKey(Album, default=3)
>
>
> [1]
> https://docs.djangoproject.com/en/1.5/topics/db/models/#model-inheritance
> [2]
> https://docs.djangoproject.com/en/1.5/ref/models/fields/#django.db.models.Field.choices
>
>
>
> 2013/11/5 Aamu Padi <aamup...@gmail.com>
>
>> Each user has many *albums*, and each album has its many photos. And
>> each user has one *background image* to hold its many images. Similarly,
>> a user has one *profile picture* to hold its many images.
>>
>> These are my models:
>>
>> 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)
>>
>>
>> class Album(models.Model):
>> user = models.ForeignKey(User)
>> name = models.CharField(max_length=200)
>> pub_date = models.DateTimeField(default=datetime.now)
>>
>>
>> class Photo(models.Model):
>> 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)
>>
>>
>> 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)
>>
>> I tried doing this, to let the user copy one image from *ProfilePicture*to
>> *Background
>> Image*, but didn't work:
>>
>> # Get the user
>> >>>m = User.objects.get(username='m')
>>
>> # Get its set of Profile pictures
>> >>>m_pro_set = m.profilepicture_set.all()
>> >>>m_pro_set
>> [<ProfilePicture: pro_mik>]
>>
>> # Get its set of Background images
>> >>>m_back_set = m.backgroundimage_set.all()
>> >>>m_back_set
>> [<BackgroundImage: bg_mik>]
>>
>> # Get an image object from Profile picture of the user
>> >>>m_pro_1 = m.profilepicture_set.get(id=2)
>> >>>m_pro_1
>> <ProfilePicture: pro_mik>
>>
>> # Get an image object from Background image of the user
>> >>>m_back_1 = m.backgroundimage_set.get(id=2)
>> >>>m_back_1
>> <BackgroundImage: bg_mik>
>>
>> # So, I tried to copy one image from *BackgroundImage* of a user *to*
>> *ProfilePicture*
>>
>> >>>m_pro_set.objects.create(m_back_1)
>>
>>
>> * File "<console>", line 1, object has attribute 'objects'*
>> *AttributeError: 'QuerySet' object has no attribute 'objects'*
>>
>> So my question is, how to copy an objects from one model to another? Any
>> advice will be much appreciated. Thank you!
>>
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>
>
>
> --
> Rafael E. Ferrero
>
> --
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