I want to copy images from one model to another within the project. Suppose
these are my models:
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)
@classmethod
def create_from_bg(cls, bg_img):
img = cls(user=bg_img.user, image=bg_img.image,
caption=bg_img.caption+'_copy', pub_date=bg_img.pub_date)
img.save()
return img
*For now, I can do these:*
*To get the user*
* >>>m = User.objects.get(username='m')*
*To get the user's profile picture set*
* >>>m_pro_set = m.profilepicture_set.all() >>>m_pro_set
[<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>*
*And then:*
*>>>profile_pic = ProfilePicture.create_from_bg(m_back_1)*
*Now when I check it, it does create a new instance.*
* >>>m_pro_set [<ProfilePicture: pro_mik>,<ProfilePicture: bg_mik>]*
*But, if I check on the path, and even on the media folder, its the same
image and not an actual copy of the image file in the folder or disk.*
* >>>profile_pic.image <ImageFileField:
uploaded_files/1389904144_ken.jpg> >>>m_back_1.image <ImageFileField:
uploaded_files/1389904144_ken.jpg>*
What it does is, when I save a new instance of the image, it creates a new
instance of that same image, and not creates a new file in the disk, i.e.
there's no actual copying of the file in the directory. How do I go about
to actually copy the original image `file` within the models? Any help will
be much appreciated! Thank you.
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