Extending the FileBrowser backend to add support for ImageField

Author: fgmacedo

image_cropping/backends/fb.py

@@ -5,8 +5,11 @@
 .. _filebrowser: https://github.com/sehmaschine/django-filebrowser
 """
 
+from django.db.models.fields.files import ImageFieldFile
+
 from filebrowser.base import FileObject
 from filebrowser.fields import FileBrowseWidget
+from filebrowser.sites import site
 
 from ..widgets import CropWidget, get_attrs
 from .base import ImageBackend
@@ -30,10 +33,19 @@ class FileBrowserBackend(ImageBackend):
     WIDGETS['FileBrowseField'] = CropFileBrowseWidget
 
     def get_thumbnail_url(self, image_path, thumbnail_options):
-        image = image_path if isinstance(
-            image_path, FileObject) else FileObject(image_path)
-        return image.version_generate(self.version_suffix, thumbnail_options).url
+        image = self.get_imageobject(image_path)
+        version_suffix = thumbnail_options.pop('version_suffix', self.version_suffix)
+        return image.version_generate(version_suffix, thumbnail_options).url
 
     def get_size(self, image):
-        image = image if isinstance(image, FileObject) else FileObject(image)
+        image = self.get_imageobject(image)
         return image.dimensions
+
+    def get_imageobject(self, image):
+        if isinstance(image, FileObject):
+            return image
+        if isinstance(image, ImageFieldFile):
+            image = image.path
+            if image.startswith(site.storage.base_location):
+                image = image[len(site.storage.base_location)+1:]
+        return FileObject(image)