flask-admin-s3-upload
Field types for allowing file and image uploads to Amazon S3 (as well as default local storage) in Flask-Admin.
Example
For a complete, working Flask app that demonstrates flask-admin-s3-upload in action, have a look at flask-s3-save-example.
Usage
Use with a Flask-Admin ModelView by overriding field types, and by passing in special arguments to those fields:
from flask.ext.admin.contrib.sqla import ModelView
class MyView(ModelView):
form_overrides = dict(
some_image=S3ImageUploadField,
some_file=S3FileUploadField)
form_args = dict(
some_image=dict(
base_path='/some/folder/static',
relative_path='some_image/',
url_relative_path='uploads/',
namegen=your_namegen_func_here,
storage_type_field='some_image_storage_type',
bucket_name_field='some_image_storage_bucket_name',
),
some_file=dict(
base_path='/some/folder/static',
relative_path='some_file/',
namegen=your_namegen_func_here,
allowed_extensions=('pdf', 'txt'),
storage_type_field='some_file_storage_type',
bucket_name_field='some_file_storage_bucket_name',
))
def scaffold_form(self):
# Note: assuming that we have Flask-S3 config values to pass
# to fields below. Flask-S3 is not required, you can pass
# values from elsewhere if you want.
from flask import current_app as app
form_class = super(MyView, self).scaffold_form()
static_root_parent = '/some/folder'
if app.config['USE_S3']:
form_class.some_image.kwargs['storage_type'] = 's3'
form_class.some_file.kwargs['storage_type'] = 's3'
form_class.some_image.kwargs['bucket_name'] = app.config['S3_BUCKET_NAME']
form_class.some_image.kwargs['access_key_id'] = app.config['AWS_ACCESS_KEY_ID']
form_class.some_image.kwargs['access_key_secret'] = app.config['AWS_SECRET_ACCESS_KEY']
form_class.some_image.kwargs['static_root_parent'] = static_root_parent
form_class.some_file.kwargs['bucket_name'] = app.config['S3_BUCKET_NAME']
form_class.some_file.kwargs['access_key_id'] = app.config['AWS_ACCESS_KEY_ID']
form_class.some_file.kwargs['access_key_secret'] = app.config['AWS_SECRET_ACCESS_KEY']
form_class.some_file.kwargs['static_root_parent'] = static_root_parent
return form_class
