[schema sync] fix so that new cardinality are considered when both inlined and cardinality change in the same transaction
"""Specific views for entities implementing IDownloadable
:organization: Logilab
:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"
_ = unicode
from logilab.mtconverter import BINARY_ENCODINGS, TransformError, xml_escape
from cubicweb.view import EntityView
from cubicweb.selectors import (one_line_rset, score_entity,
implements, match_context_prop)
from cubicweb.interfaces import IDownloadable
from cubicweb.common.mttransforms import ENGINE
from cubicweb.web.box import EntityBoxTemplate
from cubicweb.web.views import primary, baseviews
def is_image(entity):
mt = entity.download_content_type()
if not (mt and mt.startswith('image/')):
return 0
return 1
def download_box(w, entity, title=None, label=None):
req = entity.req
w(u'<div class="sideBox">')
if title is None:
title = req._('download')
w(u'<div class="sideBoxTitle downloadBoxTitle"><span>%s</span></div>'
% xml_escape(title))
w(u'<div class="sideBox downloadBox"><div class="sideBoxBody">')
w(u'<a href="%s"><img src="%s" alt="%s"/> %s</a>'
% (xml_escape(entity.download_url()),
req.external_resource('DOWNLOAD_ICON'),
_('download icon'), xml_escape(label or entity.dc_title())))
w(u'</div>')
w(u'</div>\n</div>\n')
class DownloadBox(EntityBoxTemplate):
id = 'download_box'
# no download box for images
# XXX primary_view selector ?
__select__ = (one_line_rset() & implements(IDownloadable) &
match_context_prop() & ~score_entity(is_image))
order = 10
def cell_call(self, row, col, title=None, label=None, **kwargs):
entity = self.entity(row, col)
download_box(self.w, entity, title, label)
class DownloadView(EntityView):
"""this view is replacing the deprecated 'download' controller and allow
downloading of entities providing the necessary interface
"""
id = 'download'
__select__ = one_line_rset() & implements(IDownloadable)
templatable = False
content_type = 'application/octet-stream'
binary = True
add_to_breadcrumbs = False
def set_request_content_type(self):
"""overriden to set the correct filetype and filename"""
entity = self.complete_entity(0)
encoding = entity.download_encoding()
if encoding in BINARY_ENCODINGS:
contenttype = 'application/%s' % encoding
encoding = None
else:
contenttype = entity.download_content_type()
self.req.set_content_type(contenttype or self.content_type,
filename=entity.download_file_name(),
encoding=encoding)
def call(self):
self.w(self.complete_entity(0).download_data())
class DownloadLinkView(EntityView):
"""view displaying a link to download the file"""
id = 'downloadlink'
__select__ = implements(IDownloadable)
title = None # should not be listed in possible views
def cell_call(self, row, col, title=None, **kwargs):
entity = self.entity(row, col)
url = xml_escape(entity.download_url())
self.w(u'<a href="%s">%s</a>' % (url, xml_escape(title or entity.dc_title())))
class IDownloadablePrimaryView(primary.PrimaryView):
__select__ = implements(IDownloadable)
def render_entity_attributes(self, entity):
super(IDownloadablePrimaryView, self).render_entity_attributes(entity)
self.w(u'<div class="content">')
contenttype = entity.download_content_type()
if contenttype.startswith('image/'):
self.wview('image', entity.rset, row=entity.row)
else:
self.wview('downloadlink', entity.rset, title=self.req._('download'), row=entity.row)
try:
if ENGINE.has_input(contenttype):
self.w(entity.printable_value('data'))
except TransformError:
pass
except Exception, ex:
msg = self.req._("can't display data, unexpected error: %s") % ex
self.w('<div class="error">%s</div>' % msg)
self.w(u'</div>')
class IDownloadableLineView(baseviews.OneLineView):
__select__ = implements(IDownloadable)
def cell_call(self, row, col, title=None, **kwargs):
"""the oneline view is a link to download the file"""
entity = self.entity(row, col)
url = xml_escape(entity.absolute_url())
name = xml_escape(title or entity.download_file_name())
durl = xml_escape(entity.download_url())
self.w(u'<a href="%s">%s</a> [<a href="%s">%s</a>]' %
(url, name, durl, self.req._('download')))
class ImageView(EntityView):
id = 'image'
__select__ = implements(IDownloadable) & score_entity(is_image)
title = _('image')
def call(self):
rset = self.rset
for i in xrange(len(rset)):
self.w(u'<div class="efile">')
self.wview(self.id, rset, row=i, col=0)
self.w(u'</div>')
def cell_call(self, row, col, width=None, height=None, link=False):
entity = self.entity(row, col)
#if entity.data_format.startswith('image/'):
imgtag = u'<img src="%s" alt="%s" ' % (
xml_escape(entity.download_url()),
(self.req._('download %s') % xml_escape(entity.download_file_name())))
if width:
imgtag += u'width="%i" ' % width
if height:
imgtag += u'height="%i" ' % height
imgtag += u'/>'
if link:
self.w(u'<a href="%s">%s</a>' % (entity.absolute_url(vid='download'),
imgtag))
else:
self.w(imgtag)