def render(self):
relation_id = self.relation.id
if self.relation.linkage.relation.cardinality.id == 'ONE_TO_MANY':
multi_selection = 'true'
else:
multi_selection = 'false'
i = ScopedMarkup()
i.script('var objectPicker = new p2.ObjectPicker(\'%s\', \'%s\', %s, \'%s\');' % (
self.relation_source.id,
relation_id,
multi_selection,
self.collection_id
))
i.html('<div style="position: relative">')
a = 0
query = super(ObjectPicker, self).query()
for (setobject, linked) in query:
alternation = (a % 2 == 0) and 'even' or 'odd'
a += 1
id = generate_random_identifier()
i.html("""
<div style="position:absolute; z-index:10000;">
<input id="%s" value="%s" type="checkbox" />
</div>
""" % (id, setobject.id))
subform = self.call_subform(self.collection_id ,setobject.id, linked, alternation)
subform = subform.replace(r'\"', r'\\\"')
i.html(subform)
i.html('</div>')
i.script('objectPicker.registerCheckbox($(\'#%s\'), %s)' % (id, linked))
html = i.render()
return html
def generate_random_identifier(self):
return generate_random_identifier()
def update(self):
self.error = False
self.response.setHeader('Content-Type', 'application/json')
upload_file = self.request.form['file']
size = self.request.getHeader('X-File-Size')
thumbnail_width = int(self.request.getHeader('X-thumbnail-width'))
thumbnail_height = int(self.request.getHeader('X-thumbnail-height'))
self.filename = self.request.getHeader('X-File-Name')
self.identifier = generate_random_identifier()
media = Media()
media.id = self.identifier
media.size = size
media.filename = self.filename
# Check maximum file size first:
db_util = getUtility(IDbUtility)
if int(media.size) > db_util.max_allowed_packet:
# Problem: Database does not allow BLOBs of this size.
self.error = True
self.message = 'The selected file is too big. Please contact your system administrator.'
self.title = 'Upload failed.'
upload_file.close()
return
# Read data:
chunk = upload_file.read()
while chunk != '':
# Initialise our data array
if media.data == None:
media.data = bytearray()
# Add data
media.data += chunk
# Check maximum length
if len(media.data) > int(media.size):
# Cancel upload here so uploader cannot throw an endless stream of bytes at us
self.error = True
self.message = 'The selected file is bigger than specified.'
self.title = 'Upload failed.'
upload_file.close()
return
chunk = upload_file.read()
mime_type = getUtility(IMimeTypeGetter)(name=self.filename, data=media.data)
if not mime_type:
mime_type = upload_file.headers('Content-Type')
media.mime_type = mime_type
thumbnail_file = None
self.has_thumbnail = False
if mime_type in ('image/jpeg', 'image/png', 'image/gif'):
thumbnail_file = self.create_thumbnail(upload_file, (thumbnail_width, thumbnail_height))
self.has_thumbnail = True
chunk = thumbnail_file.read()
while chunk != '':
if media.thumbnail == None:
media.thumbnail = bytearray()
media.thumbnail += chunk
chunk = thumbnail_file.read()
thumbnail_file.close()
upload_file.close()
session = db_util.Session()
session.add(media)
session.commit()
def __init__(self):
self.script_id = generate_random_identifier()
self._snippets = list()
def link(self, klass):
klass.fetch_linkages()
for linkage in klass.linkages.itervalues():
self.collections[linkage.attr_name] = {
'collection_id': generate_random_identifier(),
'linkage': linkage}
def __init__(self):
if not self.id:
self.id = generate_random_identifier()
self.action = 'new'
self.common_init()
def generate_identifier(self):
"""Generates a identifier for the setobject. It is at the moment a random identifier, but probably there should later
be a more deterministic way of doing that.
"""
return generate_random_identifier()