If you can avoid saving images to database then the solution would look
like following where you are serving base64 url of image to reduce your
website data bandwidth:
1. from django.db import models
2. class Photo( models.Model ):
3. title = models.CharField( max_length=255 )
4. image = models.ImageField( upload_to="photos/", max_length=255)
5. @property
6. def image_url( self ):
7. try:
8. img = open( self.image.path, "rb")
9. data = img.read()
10. return "data:image/jpg;base64,%s" % data.encode('base64')
11.
12. except IOError:
13. return self.image.url
2015-07-14 20:46 GMT+06:00 Bill Freeman <[email protected]>:
> You don't show where the 'Image' object comes from (in Image.open), so I
> can't be specific, but here are some generalities:
>
> "Incorrect padding" is probably a message from the base 64 decoder.
> Capture your request.POST[photo] to play with separately. If you are doing
> this under the development server you can add a pdb.set_trace() to get a
> prompt where you can play with things. Alternatively, put the decode and
> the StringIO creation in separate statements so the the line generating the
> error will be clear.
>
> Are you sure that the image is base 64? If it's coming from a file field
> in an HTML form, it probably isn't, which would explain the decode error
> (it I'm correct and it is a decoder error).
>
> It is customary to store images on the file system, putting only the path
> to the file in the database, as part of a model instance. That way the
> front end server (Apache or nginx, etc.) can serve the images without
> involving python and the database.. There are image oriented model fields
> available in django to facilitate this, see the excellent documentation.
>
> If, for whatever reason, you must store the image in the database, you can
> store it as a (binary) string. If your image object makes the data
> available as a string, there will be no need to pump it through a StringIO
> object.
>
> On Mon, Jul 13, 2015 at 7:40 AM, ywaghmare5203 <[email protected]>
> wrote:
>
>> Hello all,
>>
>> I am trying to save base64 string string image to database but I am not
>> able to store. I am beginner for python django language.
>>
>> I am following these steps:--
>>
>> from base64 import b64decode
>> from django.core.files.base import ContentFile
>> from time import time
>> import cStringIO
>> import base64
>>
>>
>> pic = cStringIO.StringIO()
>> image_string =
>> cStringIO.StringIO(base64.b64decode(request.POST['photo']))
>> image = Image.open(image_string)
>> image.save(pic, image.format, quality = 100)
>> pic.seek(0)
>> return HttpResponse(pic, content_type='image/jpeg')
>>
>> but I have error
>>
>> TypeError: Incorrect padding
>>
>> Please help me for store the base64 image string in the database.
>>
>>
>> Thanks & Regards,
>>
>> Yogesh Waghnare
>>
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www.sadafnoor.com
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