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- from wtforms.widgets import HTMLString, html_params
- from jinja2 import escape
- from mongoengine.fields import GridFSProxy, ImageGridFsProxy
- from flask_admin.helpers import get_url
- from . import helpers
- class MongoFileInput(object):
- """
- Renders a file input chooser field.
- """
- template = ('<div>'
- ' <i class="icon-file"></i>%(name)s %(size)dk (%(content_type)s)'
- ' <input type="checkbox" name="%(marker)s">Delete</input>'
- '</div>')
- def __call__(self, field, **kwargs):
- kwargs.setdefault('id', field.id)
- placeholder = ''
- if field.data and isinstance(field.data, GridFSProxy):
- data = field.data
- placeholder = self.template % {
- 'name': escape(data.name),
- 'content_type': escape(data.content_type),
- 'size': data.length // 1024,
- 'marker': '_%s-delete' % field.name
- }
- return HTMLString('%s<input %s>' % (placeholder,
- html_params(name=field.name,
- type='file',
- **kwargs)))
- class MongoImageInput(object):
- """
- Renders a file input chooser field.
- """
- template = ('<div class="image-thumbnail">'
- ' <img src="%(thumb)s"/>'
- ' <input type="checkbox" name="%(marker)s">Delete</input>'
- '</div>')
- def __call__(self, field, **kwargs):
- kwargs.setdefault('id', field.id)
- placeholder = ''
- if field.data and isinstance(field.data, ImageGridFsProxy):
- args = helpers.make_thumb_args(field.data)
- placeholder = self.template % {
- 'thumb': get_url('.api_file_view', **args),
- 'marker': '_%s-delete' % field.name
- }
- return HTMLString('%s<input %s>' % (placeholder,
- html_params(name=field.name,
- type='file',
- **kwargs)))
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