def set(self, instance, value, **kw):
"""Set the value of the (proxy) field
"""
proxy_field = self.get_proxy_field(instance)
if proxy_field is None:
return None
# set the field with the proper field manager of the proxy field
fieldmanager = IFieldManager(proxy_field)
return fieldmanager.set(instance, value, **kw)
def json_data(self, name):
"""Get a JSON compatible structure for the named attribute
"""
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if not field:
return None
fieldmanager = IFieldManager(field)
return fieldmanager.json_data(self.context)
def get(self, name):
"""Get the value of the field by name
"""
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if not field:
return None
# call the field adapter and set the value
fieldmanager = IFieldManager(field)
return fieldmanager.get(self.context)
def set(self, name, value, **kw):
"""Set the field to the given value.
The keyword arguments represent the other field values
to integrate constraints to other values.
"""
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if not field:
return False
# call the field adapter and set the value
fieldmanager = IFieldManager(field)
return fieldmanager.set(self.context, value, **kw)
def get_file_info(obj, fieldname, default=None):
"""Extract file data from a file field
:param obj: Content object
:type obj: ATContentType/DexterityContentType
:param fieldname: Schema name of the field
:type fieldname: str/unicode
:returns: File data mapping
:rtype: dict
"""
# extract the file field from the object if omitted
field = get_field(obj, fieldname)
# get the value with the fieldmanager
fm = IFieldManager(field)
# return None if we have no file data
if fm.get_size(obj) == 0:
return None
out = {
"content_type": fm.get_content_type(obj),
"filename": fm.get_filename(obj),
"download": fm.get_download_url(obj),
}
# only return file data only if requested (?filedata=yes)
if req.get_filedata(False):
data = fm.get_data(obj)
out["data"] = data.encode("base64")
return out
def json_data(self, name):
"""Get a JSON compatible structure for the named attribute
"""
# Check the write permission of the context
# XXX: This should be done on field level by the field manager adapter
if not self.can_write():
raise Unauthorized("You are not allowed to modify this content")
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if not field:
return None
fieldmanager = IFieldManager(field)
return fieldmanager.json_data(self.context)
def get(self, name):
"""Get the value of the field by name
"""
# Check the read permission of the context
# XXX: This should be done on field level by the field manager adapter
if not self.can_write():
raise Unauthorized("You are not allowed to modify this content")
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if field is None:
return None
# call the field adapter and set the value
fieldmanager = IFieldManager(field)
return fieldmanager.get(self.context)
def set(self, name, value, **kw):
"""Set the field to the given value.
The keyword arguments represent the other field values
to integrate constraints to other values.
"""
# Check the write permission of the context
# XXX: This should be done on field level by the field manager adapter
if not self.can_write():
raise Unauthorized("You are not allowed to modify this content")
# fetch the field by name
field = api.get_field(self.context, name)
# bail out if we have no field
if not field:
return False
# call the field adapter and set the value
fieldmanager = IFieldManager(field)
return fieldmanager.set(self.context, value, **kw)