def render(self, **kwargs):
"""render a file field and the file preview
"""
html = Base.render(self, **kwargs)
value = self.field.value
if value:
html += self.render_readonly()
# add the old value for objects not yet stored
old_value = "%s--old" % self.name
html += h.hidden_field(old_value, value=value)
return html
def deserialize(self):
if self._path:
return self._path
data = Base.deserialize(self)
if self._data is not None and self._filename:
filename = normalized_basename(self._filename)
self._path = self.relative_path(filename)
filepath = os.path.join(self.storage_path, self._path.replace("/", os.sep))
dirname = os.path.dirname(filepath)
if not os.path.isdir(dirname):
os.makedirs(dirname)
fd = open(filepath, "wb")
fd.write(data)
fd.close()
return self._path
# get value from old_value if needed
old_value = "%s--old" % self.name
checkbox_name = "%s--remove" % self.name
if not data and not self.params.has_key(checkbox_name) and self.params.has_key(old_value):
return self.params[old_value]
return data is not None and data or ""
def __init__(self, *args, **kwargs):
if not self.storage_path or not os.path.isdir(self.storage_path):
raise ValueError("storage_path must be set to a valid path. Got %r" % self.storage_path)
Base.__init__(self, *args, **kwargs)
self._path = None
