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Renders a file input chooser field.
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look and feel.
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Renders a image input chooser field.
You can customize `empty_template` and `data_template` members to customize
look and feel.
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Customizable file-upload field.
Saves file to configured path, handles updates and deletions. Inherits from `StringField`,
resulting filename will be stored as string.
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Constructor.
:param label:
Display label
:param validators:
Validators
:param base_path:
Absolute path to the directory which will store files
:param relative_path:
Relative path from the directory. Will be prepended to the file name for uploaded files.
Flask-Admin uses `urlparse.urljoin` to generate resulting filename, so make sure you have
trailing slash.
:param namegen:
Function that will generate filename from the model and uploaded file object.
Please note, that model is "dirty" model object, before it was committed to database.
For example::
import os.path as op
def prefix_name(obj, file_data):
parts = op.splitext(file_data.filename)
return secure_filename('file-%s%s' % parts)
class MyForm(BaseForm):
upload = FileUploadField('File', namegen=prefix_name)
:param allowed_extensions:
List of allowed extensions. If not provided, will allow any file.
:param allow_overwrite:
Whether to overwrite existing files in upload directory. Defaults to `True`.
.. versionadded:: 1.1.1
The `allow_overwrite` parameter was added.
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Check if file extension is allowed.
:param filename:
File name to check
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Image upload field.
Does image validation, thumbnail generation, updating and deleting images.
Requires PIL (or Pillow) to be installed.
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Constructor.
:param label:
Display label
:param validators:
Validators
:param base_path:
Absolute path to the directory which will store files
:param relative_path:
Relative path from the directory. Will be prepended to the file name for uploaded files.
Flask-Admin uses `urlparse.urljoin` to generate resulting filename, so make sure you have
trailing slash.
:param namegen:
Function that will generate filename from the model and uploaded file object.
Please note, that model is "dirty" model object, before it was committed to database.
For example::
import os.path as op
def prefix_name(obj, file_data):
parts = op.splitext(file_data.filename)
return secure_filename('file-%s%s' % parts)
class MyForm(BaseForm):
upload = FileUploadField('File', namegen=prefix_name)
:param allowed_extensions:
List of allowed extensions. If not provided, then gif, jpg, jpeg, png and tiff will be allowed.
:param max_size:
Tuple of (width, height, force) or None. If provided, Flask-Admin will
resize image to the desired size.
Width and height is in pixels. If `force` is set to `True`, will try to fit image into dimensions and
keep aspect ratio, otherwise will just resize to target size.
:param thumbgen:
Thumbnail filename generation function. All thumbnails will be saved as JPEG files,
so there's no need to keep original file extension.
For example::
import os.path as op
def thumb_name(filename):
name, _ = op.splitext(filename)
return secure_filename('%s-thumb.jpg' % name)
class MyForm(BaseForm):
upload = ImageUploadField('File', thumbgen=thumb_name)
:param thumbnail_size:
Tuple or (width, height, force) values. If not provided, thumbnail won't be created.
Width and height is in pixels. If `force` is set to `True`, will try to fit image into dimensions and
keep aspect ratio, otherwise will just resize to target size.
:param url_relative_path:
Relative path from the root of the static directory URL. Only gets used when generating
preview image URLs.
For example, your model might store just file names (`relative_path` set to `None`), but
`base_path` is pointing to subdirectory.
:param endpoint:
Static endpoint for images. Used by widget to display previews. Defaults to 'static'.
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