z3c.form-widget which lets users upload multiple files
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README.rst

Introduction

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plone.formwidget.multifile is a z3c.form-widget which lets users upload multiple files, either at once, or in batches using repeated form submissions.

Browsers that do not implement the file input "multiple" attribute are supported via javascript adding of multiple file inputs. This also works with browsers that do support "multiple", and allows users to add and remove files in bundles. Upload does not occur until the form is saved.

Usage

Using the widget is quite easy:

>>> from plone.directives import form as directivesform
>>> from plone.formwidget.multifile import MultiFileFieldWidget
>>> from plone.namedfile.field import NamedFile
>>> from zope import schema
>>> from zope.interface import Interface
>>>
>>> class IMySchema(Interface):
...     """My schema interface"""
...
...     directivesform.widget(files=MultiFileFieldWidget)
...     files = schema.List(title=u'Files',
...                         value_type=NamedFile())

Limitations

We do not yet support ordering. There is no fallback for non-html5, non-javascript browsers. They will only be able to upload 1 file at a time.