Django talk: Re: Image resizing

Wednesday, March 25, 2015

Re: Image resizing

For image resizing i have used the following function(in bold).Is it right??

def edit_profile(request):

if 'username' in request.session:

#user_id=request.POST.get('id')

user_id=request.GET.get('id')

usr_obj=User.objects.get(id=int(user_id))

if request.method=="POST":

if(request.POST['houseno']!=''):

houseno=request.POST['houseno']

else:

houseno=None

if(request.POST['address1']!=''):

address1=request.POST['address1']

else:

address1=None

if(request.POST['city']!=''):

city=request.POST['city']

else:

city=None

if(request.POST['state']!=''):

state=request.POST['state']

else:

state=None

if(request.POST['pincode']!=''):

pincode=request.POST['pincode']

else:

pincode=None

if(request.POST['country']!=''):

country=request.POST['country']

else:

country=None

if(request.POST['comment']!=''):

comment=request.POST['comment']

else:

comment=None

regform=Edit_Registration(instance=usr_obj,data=request.POST)

if regform.is_valid():

try:

from PIL import Image, ImageOps

except ImportError:

import Image

import ImageOps

imagecontent=request.FILES['image']---At this point it is giving MultiValueDicitionayKeyError(though the field name is same that is image)

if imagecontent.mode not in ("L", "RGB"):

image = imagecontent.convert("RGB")

imageresize = image.resize((100,100), Image.ANTIALIAS)

imageresize.save( 'JPEG', quality=75)

regform.save();

return HttpResponseRedirect('/index/')

else:

return render_to_response("edit_profile.html",{"form":regform,})

else:

regform=Edit_Registration(instance=usr_obj)

return render_to_response("edit_profile.html",{"form":regform,"user_id":user_id})

else:

return HttpResponseRedirect('/login/')

Please Suggest..........

On Tue, Mar 24, 2015 at 6:41 PM, Andreas Kuhne <andreas.kuhne@suitopia.com> wrote:

You can use Pillow to change the size of the images yourself. That is however pretty complicated and IMO not really worth the effort. I would go with easy_thumbnails.

Regards,

Andréas

2015-03-24 14:04 GMT+01:00 Akash Patni <akash.patni@ranosys.com>:
can you please suggest me another answer...

On Tue, Mar 24, 2015 at 6:13 PM, Andreas Kuhne <andreas.kuhne@suitopia.com> wrote:
Hi,

Check out the easy_thumbnails plugin. http://easy-thumbnails.readthedocs.org/en/2.1/

It automatically resizes all images to the size you want if you use it correctly.

Regards,

Andréas

2015-03-24 11:07 GMT+01:00 <akash.patni@ranosys.com>:
Hi..
can anyone please tell me how to resize the uploaded image....
This is my model
class User(models.Model):
    first_name=models.CharField(
verbose_name = "First Name *",max_length=20,blank=False)
    last_name=models.CharField(verbose_name = "Last Name *",max_length=20,blank=False)
    username=models.EmailField(verbose_name = "Email *",max_length=30,blank=False)
    password=models.CharField(verbose_name = "Password *",max_length=15,blank=False)
    dob=models.DateField(verbose_name = "DOB *" ,blank=True,null=True)
    mobileno=models.CharField(verbose_name = "Mobile No *",max_length=20,blank=False)
    houseno=models.CharField(verbose_name = "House No",max_length=10,blank=True)
    address1=models.CharField(verbose_name = "Adress1",max_length=30,blank=True)
    city=models.CharField(verbose_name = "City",max_length=20,blank=True)
    state=models.CharField(verbose_name = "State",max_length=30,blank=True)
    pincode=models.CharField(verbose_name = "Pincode",max_length=20,blank=True)
    country=models.CharField(verbose_name = "Country",max_length=30,blank=True)
    comment=models.CharField(verbose_name = "Comment",max_length=200,blank=True)
    sex=models.CharField(verbose_name = "Sex *",max_length=5,blank=False)
    image=models.FileField(verbose_name = "Image(limit 1Mb) *",blank=True,upload_to='media/')

    def __unicode__(self):
        return self.first_name

this is my form
class Registration(forms.ModelForm):
      password = forms.CharField(label='Password *',widget=forms.PasswordInput())
      image = forms.ImageField(label='Select a file *',help_text='max. 1 megabytes')
      class Meta:

view.py
def registration(request):
    #request.session.set_test_cookie()
    if request.method == "POST":
            regform=Registration(request.POST,request.FILES)
            if regform.is_valid():
               #item=resize_and_crop(img_path, modified_path, size, crop_type='top')
               regform.save();
               return HttpResponseRedirect('/login/')

            else:
                return render_to_response('registration.html',{"form":regform})
    else:
        regform=Registration()
    return render_to_response('registration.html',{"form":regform})

def show_profile(request):
    if 'username' in request.session:
         obj_user=User.objects.all().order_by('-id')
         return render_to_response("index.html",{"obj_user":obj_user,"message":"Hello World"})
    else:
        return HttpResponseRedirect('/login/')

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Best Regards,
Akash Patni
Software Engineer


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