cone.fileupload 0.4

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

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]