image upload working

rowers/rows.py

@@ -1,11 +1,11 @@
 import time
 import gzip
 import shutil
-
+import hashlib
 from django.core.exceptions import ValidationError
 
 def format_pace_tick(x,pos=None):
-	min=int(x/60)
+        min=int(x/60)
 	sec=int(x-min*60.)
 	sec_str=str(sec).zfill(2)
 	template='%d:%s'
@@ -45,6 +45,14 @@ def format_time(x,pos=None):
 
     return str1
 
+def validate_image_extension(value):
+        import os
+        ext = os.path.splitext(value.name)[1].lower()
+        valid_extension = ['.jpg','.jpeg','.png','.gif']
+
+        if not ext in valid_extension:
+                raise ValidationError(u'File not supported')
+
 def validate_file_extension(value):
   import os
   ext = os.path.splitext(value.name)[1]
@@ -62,6 +70,34 @@ def must_be_csv(value):
 	raise ValidationError(u'File not supported!')
     
 
+def handle_uploaded_image(i):
+        import StringIO
+        from PIL import Image, ImageOps
+        import os
+        from django.core.files import File
+        image_str = ""
+        for c in i.chunks():
+                image_str += c
+        imagefile = StringIO.StringIO(image_str)
+        image = Image.open(imagefile)
+
+        if image.mode not in ("L", "RGB"):
+                image = image.convert("RGB")
+
+        basewidth = 600
+        wpercent = (basewidth/float(image.size[0]))
+        hsize = int((float(image.size[1])*float(wpercent)))
+        image = image.resize((basewidth,hsize), Image.ANTIALIAS)
+
+        
+
+        filename = hashlib.md5(imagefile.getvalue()).hexdigest()+'.jpg'
+
+        filename2 = os.path.join('static/plots/',filename)
+        image.save(filename2,'JPEG')
+        return filename,filename2
+                
+
 def handle_uploaded_file(f):
     fname = f.name
     timestr = time.strftime("%Y%m%d-%H%M%S")