It's using 'requires' because that will take the image and do something
with it as a check, before validating the data and writing it to the
database. In this case, it resizes the image as the "check".
You might be able to find a validator that works with sqlform and replace
it's check with the same function.
On Monday, May 20, 2013 10:52:28 AM UTC-7, Derek wrote:
>
> That won't do anything. You want this:
> db.table_name.picture.requires = RESIZE(200, 200)
>
> Form.requires probably does absolutely nothing.
>
> Your table name is 'test' and your field with the image is called 'pic' so
> to adapt the imageutils.py example to your site would be this:
>
> db.test.pic.requires=RESIZE(200,200)
>
>
> On Sunday, May 19, 2013 1:45:52 PM UTC-7, Dragan Matic wrote:
>>
>> Is there a way to make imageutils.py work with SQLFORM.FACTORY? It works
>> perfectly with database tables but if I upload a picture through
>> SQLFORM.factory like this:
>>
>> form = SQLFORM.factory(Field('pic', 'upload', uploadfolder=os.path.join(
>> request.folder, 'uploads/')), Field('description', 'text'), table_name=
>> 'test')
>>
>> form.table.pic.requires = RESIZE(50, 50)
>> The picture is not resized.
>>
>> On Thursday, May 9, 2013 10:41:14 AM UTC+2, Niphlod wrote:
>>>
>>> there's also a /contrib/imageutils.py ready to use.
>>>
>>> Il giorno giovedì 9 maggio 2013 07:22:06 UTC+2, weheh ha scritto:
>>>>
>>>> There are numerous ways to resize uploaded images. Some are done via
>>>> the web server. Others are done within the app. For a couple of my apps I
>>>> use the python PIL package to resize uploaded images to thumbnails and the
>>>> like. Here's a code fragment that shows how to do it:
>>>>
>>>> def resize_image(img_file, indx):
>>>> from PIL import Image
>>>> im = Image.open(img_file)
>>>> im.thumbnail((w, h), Image.ANTIALIAS)
>>>> return im
>>>>
>>>> You then have to use im.save('path', 'jpeg') to get a jpeg out. You
>>>> also have to do a little extra work to save it to db or do some file
>>>> management to discard the original, if you so desire.
>>>>
>>>>
>>>>
>>>> On Thursday, May 9, 2013 5:43:45 AM UTC+8, Dragan Matic wrote:
>>>>>
>>>>> Is there a way to automatically optimize and convert images after
>>>>> users upload it on my web app? I am pretty sure lots of users will upload
>>>>> uncompressed .bmp pictures or extra large pictures directly from camera.
>>>>> I
>>>>> think it would be best if I could resize and compress them immediately
>>>>> after upload. What would be the best way to do it?
>>>>>
>>>>
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