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 from PIL 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 """}