cone.fileupload 0.4

jQuery File Upload integration for cone.app

cone.fileupload

This package integrates jQuery File Upload (https://github.com/blueimp/jQuery-File-Upload/) in cone.

Currently, tag 9.9.3 is included. See (https://github.com/blueimp/jQuery-File-Upload/releases).

Usage

Since cone.app not knows about the underlying data, cone.fileupload only provides an abstract server implementation.

So first we need to provide a model.

from pyramid.security import (
    Everyone,
    Allow,
    Deny,
    ALL_PERMISSIONS,
)
from cone.app.model import BaseNode

# define an ACL
ACL = [
    (Allow, 'role:manager', ['add', 'delete']),
    (Allow, Everyone, ['login']),
    (Deny, Everyone, ALL_PERMISSIONS),
]

class Container(BaseNode):
    __acl__ = ACL

    def __call__(self):
        """Persistence happens here.
        """

class File(BaseNode):
    __acl__ = ACL
    allow_non_node_childs = True # allow setting any value types

Now we need to provide a concrete FileUploadHandle implementation for our model.

from pyramid.view import view_config
from cone.fileupload.browser.fileupload import FileUploadHandle

@view_config(
    name='fileupload_handle',
    context=Container, # <- here the view gets bound to our model
    accept='application/json',
    renderer='json',
    permission='add')
class ContainerFileUploadHandle(FileUploadHandle):

    def create_file(self, stream, filename, mimetype):
        # this function gets called for persisting uploaded files
        file = self.model[filename] = File()
        file['body'] = stream.read()
        return {
            'name': filename,
            'size': len(file['body']),
            'url': '/{0}'.format(file.name),
            'deleteUrl': '/{0}/filedelete_handle'.format(file.name),
            'deleteType': 'GET',
        }

    def read_existing(self):
        # this function gets called for initial reading of existing files
        files = list()
        for node in self.model.values():
            files.append({
                'name': node.name,
                'size': len(node['body']),
                'url': '/{0}'.format(node.name),
                'deleteUrl': '/{0}/filedelete_handle'.format(node.name),
                'deleteType': 'GET',
            })
        return files

Optionally we might want to provide a custom fileupload tile for our model.

from cone.tile import tile
from cone.fileupload.browser.fileupload import FileUploadTile

@tile(
    name='fileupload',
    path='cone.fileupload:browser/fileupload.pt',
    interface=Container,
    permission='add')
class ContainerFileUploadTile(FileUploadTile):
    accept_file_types = '/(\.|\/)(gif|jpg)$/i'
    disable_image_preview = True
    disable_video_preview = True
    disable_audio_preview = True

Contributors

• Robert Niederreiter <rnix [at] squarewave [dot] at>

Changes

0.4 (2020-05-30)

• Initial pypi release [rnix]

0.3

• Python 3 compatibility. [rnix]

• Convert doctests to unittests. [rnix]

• Use cone.app.main_hook decorator. [rnix]

• Move resource registration to main hook. [rnix]

• Upgrade to cone.app 1.0b1. [rnix]

0.2

• Code organization. [rnix]

0.1

• Make it work [rnix]

License

Copyright (c) 2013-2019, BlueDynamics Alliance, Austria All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

• Neither the name of the BlueDynamics Alliance nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY BlueDynamics Alliance AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BlueDynamics Alliance BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.