def from_sessionized(cls, d):
if is_listy(d):
return [cls.from_sessionized(t) for t in d]
elif isinstance(d, dict):
assert d['_model'] in {'Attendee', 'Group'}
if d['_model'] == 'Group':
return cls.from_sessionized_group(d)
else:
return cls.from_sessionized_attendee(d)
else:
return d
def to_sessionized(cls, m):
from uber.models import Attendee, Group
if is_listy(m):
return [cls.to_sessionized(t) for t in m]
elif isinstance(m, dict):
return m
elif isinstance(m, Attendee):
return m.to_dict(Attendee.to_dict_default_attrs + ['promo_code'] +
list(Attendee._extra_apply_attrs_restricted))
elif isinstance(m, Group):
return m.to_dict(Group.to_dict_default_attrs + ['attendees'] +
list(Group._extra_apply_attrs_restricted))
else:
raise AssertionError('{} is not an attendee or group'.format(m))
def success(result):
response = {'jsonrpc': '2.0', 'id': id, 'result': result}
log.debug(
'Returning success message: {}', {
'jsonrpc':
'2.0',
'id':
id,
'result':
len(result)
if is_listy(result) else str(result).encode('utf-8')
})
cherrypy.response.status = 200
return response
def normalize_sort(model, sort):
if sort and isinstance(sort, six.string_types):
first_char = sort.lstrip()[0]
if first_char == '[' or first_char == '{':
sort = json.loads(sort)
if isinstance(sort, six.string_types):
return [{'field': _extract_sort_field(model, sort), 'dir': 'asc'}]
elif is_listy(sort):
sorters = []
for s in sort:
sorters.extend(normalize_sort(model, s))
return sorters
elif isinstance(sort, dict):
field = sort.get('property', sort.get('fields', sort.get('field', [])))
direction = sort.get('direction', sort.get('dir', 'asc')).lower()
return [{'field': _extract_sort_field(model, field), 'dir': direction}]
return [{'field': 'id', 'dir': 'asc'}]
def _merge_relations(self,
name,
value,
validator=lambda self, name, val: True):
attr = getattr(self.__class__, name)
if (not isinstance(attr, InstrumentedAttribute)
or not isinstance(attr.property, RelationshipProperty)):
return
session = orm.Session.object_session(self)
assert session, "cannot call _merge_relations on objects not attached to a session"
property = attr.property
relation_cls = property.mapper.class_
# e.g., if this a Team with many Players, and we're handling the attribute name
# "players," we want to set the team_id on all dictionary representations of those players.
backref_id_name = self.one_to_many_foreign_key_column_name(name)
original_value = getattr(self, name)
if is_listy(original_value):
new_insts = []
if value is None:
value = []
if isinstance(value, six.string_types):
value = [value]
for i in value:
if backref_id_name is not None and isinstance(
i, dict) and not i.get(backref_id_name):
i[backref_id_name] = self.id
relation_inst = relation_cls._create_or_fetch(
session, i,
**{backref_id_name: self.id} if backref_id_name else {})
if isinstance(i, dict):
if relation_inst._sa_instance_state.identity:
validator = _crud_write_validator
else:
validator = _crud_create_validator
relation_inst.from_dict(i, validator)
new_insts.append(relation_inst)
relation = original_value
remove_insts = [
stale_inst for stale_inst in relation
if stale_inst not in new_insts
]
for stale_inst in remove_insts:
relation.remove(stale_inst)
if property.cascade.delete_orphan:
session.delete(stale_inst)
for new_inst in new_insts:
if new_inst.id is None or new_inst not in relation:
relation.append(new_inst)
elif isinstance(value, (collections.Mapping, six.string_types)):
if backref_id_name is not None and not value.get(backref_id_name):
# if this is a dictionary, it's possible we're going to be
# creating a new thing, if so, we'll add a backref to the
# "parent" if one isn't already set
value[backref_id_name] = self.id
relation_inst = relation_cls._create_or_fetch(session, value)
stale_inst = original_value
if stale_inst is None or stale_inst.id != relation_inst.id:
if stale_inst is not None and property.cascade.delete_orphan:
session.delete(stale_inst)
if isinstance(value, collections.Mapping):
relation_inst.from_dict(value, validator)
session.flush([
relation_inst
]) # we want this this to be queryable for other things
setattr(self, name, relation_inst)
elif value is None:
# the first branch handles the case of setting a many-to-one value
# to None. So this is for the one-to-one-mapping case
# Setting a relation to None is nullifying the relationship, which
# has potential side effects in the case of cascades, etc.
setattr(self, name, value)
stale_inst = original_value
if stale_inst is not None and property.cascade.delete_orphan:
session.delete(stale_inst)
else:
raise TypeError('merging relations on {1} not support for values '
'of type: {0.__class__.__name__} '
'(value: {0})'.format(value, name))
def success(result):
response = {'jsonrpc': '2.0', 'id': id, 'result': result}
log.debug('Returning success message: {}', {
'jsonrpc': '2.0', 'id': id, 'result': len(result) if is_listy(result) else str(result).encode('utf-8')})
cherrypy.response.status = 200
return response
