File storage refactoring, adding far more flexibility to Django's file handling. The new files.txt document has details of the new features.

This is a backwards-incompatible change; consult BackwardsIncompatibleChanges for details.

Fixes #3567, #3621, #4345, #5361, #5655, #7415.

Many thanks to Marty Alchin who did the vast majority of this work.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8244 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/file_storage/models.py

@@ -0,0 +1,44 @@
+import os
+import tempfile
+from django.db import models
+from django.core.files.storage import FileSystemStorage
+from django.core.files.base import ContentFile
+
+temp_storage = FileSystemStorage(tempfile.gettempdir())
+
+# Test for correct behavior of width_field/height_field.
+# Of course, we can't run this without PIL.
+
+try:
+    # Checking for the existence of Image is enough for CPython, but
+    # for PyPy, you need to check for the underlying modules
+    import Image, _imaging
+except ImportError:
+    Image = None
+
+# If we have PIL, do these tests
+if Image:
+    class Person(models.Model):
+        name = models.CharField(max_length=50)
+        mugshot = models.ImageField(storage=temp_storage, upload_to='tests', 
+                                    height_field='mug_height', 
+                                    width_field='mug_width')
+        mug_height = models.PositiveSmallIntegerField()
+        mug_width = models.PositiveSmallIntegerField()
+        
+    __test__ = {'API_TESTS': """
+
+>>> image_data = open(os.path.join(os.path.dirname(__file__), "test.png"), 'rb').read()
+>>> p = Person(name="Joe")
+>>> p.mugshot.save("mug", ContentFile(image_data))
+>>> p.mugshot.width
+16
+>>> p.mugshot.height
+16
+>>> p.mug_height
+16
+>>> p.mug_width
+16
+
+"""}
+