我有一個圖片模型,看起來像這樣如何以編程方式創建一個具有ImageField的和領域捕捉的寬度和高度在Django
class Photo(models.Model):
title = models.CharField(max_length=100, blank=True)
width = models.IntegerField()
height = models.IntegerField()
image = models.ImageField(upload_to=upload_to_callable, width_field="width", height_field="height")
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey()
create_date = models.DateTimeField(auto_now_add=True)
modified_date = models.DateTimeField(auto_now=True)
site = models.ForeignKey(Site)
在我的測試中一個模型,我需要創建這個模型編程。這是我在做什麼
def _create_random_image(self):
import Image,ImageDraw
img = Image.new("RGB", (300,300), "#FFFFFF")
draw = ImageDraw.Draw(img)
r,g,b = rint (0,255), rint(0,255), rint(0,255)
dr = (rint(0,255) - r)/300.
dg = (rint(0,255) - g)/300.
db = (rint(0,255) - b)/300.
for i in range(300):
r,g,b = r+dr, g+dg, b+db
draw.line((i,0,i,300), fill=(int(r),int(g),int(b)))
tmpfilename = "/tmp/test36052.png"
img.save(tmpfilename, "PNG")
f = file(tmpfilename)
return f
def testHomePageImage(self):
tmpfile = self._create_random_image()
photo = Photo.objects.create(image=tmpfile,
title=site1_home_page.title,
site=self.site1,
content_object = site1_home_page)
我收到以下錯誤
AttributeError的:「文件」對象有沒有屬性「寬度」
是否有擴展文件對象的內部Django的對象,我可以用?
我想我可以看看form.ImageField清理到什麼。讓我看看是否有幫助。 – arustgi