Fields & Widgets¶
The FileBrowseField is a custom model field which returns a FileObject.
FileBrowseField¶
-
class
FileBrowseField
(max_length[, site, directory, extensions, format, **options])¶ A subclass of CharField, referencing a media file within. Returns a FileObject.
Parameters: - site – A FileBrowser site (defaults to the main site), see FileBrowser Site.
- directory – Directory to browse when clicking the search icon.
- extensions – List of allowed extensions, see Extensions and Formats.
- format – A key from SELECT_FORMATS in order to restrict the selection to specific filetypes, see Extensions and Formats.
For example:
from filebrowser.fields import FileBrowseField
class BlogEntry(models.Model):
image = FileBrowseField("Image", max_length=200, directory="images/", extensions=[".jpg"], blank=True)
document = FileBrowseField("PDF", max_length=200, directory="documents/", extensions=[".pdf",".doc"], blank=True)
If you define extensions, you’ll get a validation error if the selected file/folder doesn’t match the extension defined with the field.
If you define format, the pop-up for selecting files will only show items which match the definition.
FileBrowseField in Templates¶
You can use all attributes from FileObject:
{{ blogentry.image }}
<img src="{{ publication.image.url }}" />
{% if blogentry.image.image_orientation == "landscape" %}
<img src="{{ blogentry.image.url }}" class="landscape" />
{% endif %}
Showing Thumbnail in the Changelist¶
To show a thumbnail with the changelist, you can define a ModelAdmin method:
from filebrowser.settings import ADMIN_THUMBNAIL
def image_thumbnail(self, obj):
if obj.image and obj.image.filetype == "Image":
return '<img src="%s" />' % obj.image.version_generate(ADMIN_THUMBNAIL).url
else:
return ""
image_thumbnail.allow_tags = True
image_thumbnail.short_description = "Thumbnail"
Using the FileBrowseField with TinyMCE¶
In order to replace the TinyMCE image/file manager with the FileBrowser, you have to use a FileBrowser Callback. There’s an example TinyMCE configuration file in /static/js/ called TinyMCEAdmin.js. You can either copy the FileBrowserCallback to your own file or just use tinymce_setup.js (which comes with django-grappelli).
Just add these lines to your ModelAdmin asset definitions:
class Media:
js = ['/path/to/tinymce/jscripts/tiny_mce/tiny_mce.js',
'/path/to/your/tinymce_setup.js']
Django FileField and the FileBrowser¶
Return a FileObject from a FileField or ImageField with:
from filebrowser.base import FileObject
image_upload = models.ImageField(u"Image (Upload)", max_length=250, upload_to=image_upload_path, blank=True)
def image(self):
if self.image_upload:
return FileObject(self.image_upload.path)
return None
In order show a thumbnail with your changelist, you could use a ModelAdmin method:
from filebrowser.base import FileObject
def image_thumbnail(self, obj):
if obj.image_upload:
image = FileObject(obj.image_upload.path)
if image.filetype == "Image":
return '<img src="%s" />' % image.version_generate(ADMIN_THUMBNAIL).url
else:
return ""
image_thumbnail.allow_tags = True
image_thumbnail.short_description = "Thumbnail"
Note
There are different ways to achieve this. The above examples show one of several options.