when a new image is uploaded, reset the image size information

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22935 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Image.py

@@ -489,6 +489,12 @@ class Image(File, OFSImage):
       return (height, width)
     return None
 
+  def _setFile(self, *args, **kw):
+    """set the file content and reset image information.
+    """
+    File._setFile(self, *args, **kw)
+    self._update_image_info()
+  
   #
   # FTP/WebDAV support
   #

product/ERP5/tests/testERP5Base.py

@@ -1202,6 +1202,15 @@ class TestERP5Base(ERP5TypeTestCase):
     self.assertEquals('\xff', image_data[0])
     self.assertEquals('\xd8', image_data[1])
   
+  def test_ImageSize(self):
+    image = self.portal.newContent(portal_type='Image', id='test_image')
+    image.edit(file=self.makeImageFileUpload('erp5_logo.png'))
+    self.assertEquals(320, image.getWidth())
+    self.assertEquals(250, image.getHeight())
+    image.edit(file=self.makeImageFileUpload('erp5_logo_small.png'))
+    self.assertEquals(160, image.getWidth())
+    self.assertEquals(125, image.getHeight())
+
   def test_Person_getCareerStartDate(self):
     # Person_getCareerStartDate scripts returns the date when an employee
     # started to work for an employer