限制 ImageFileField 数据的尺寸
我正在尝试使 ImageFileField 只接受设定尺寸的图像文件。我在这里找到了另一篇文章，建议劫持表单中的“clean”方法，但我想知道创建自定义字段类型是否会更简单？
有谁有我可以使用的任何代码片段来执行此操作吗？我根本不想调整图像文件的大小，只要大小正确就按原样上传。
非常感谢！
I'm trying to make it so that the ImageFileField only accepts image files of a set dimension. I found another post on here which suggest hijacking the 'clean' method in a form, but I was wondering if it would be simpler to create a custom field type instead?
Has anyone got any code snippets which I might be able to use in order to do this? I don't want the image files to be resized at all, just uploaded as they are if they are the correct size.
Much appreciated!
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这是 ImageField 表单字段的（最新）调整大小版本，它设置了最大大小。您也许可以从中获得灵感，只接受某些图像尺寸（即，不触发调整大小，而是让字段抱怨）。
http://www.djangosnippets.org/snippets/1966/
希望对
史蒂夫有帮助
This is a (recent) resizing version of the ImageField form field which sets a max size. You might be able to take inspiration from it for accepting only certain image dimensions (ie, instead of triggering resizing, make the field complain).
http://www.djangosnippets.org/snippets/1966/
Hope that helps
Steve