def _update_tables(self, thing_id, key, olddata, newdata):
def find_datatype(value):
if isinstance(value, common.Text):
return 'text'
elif isinstance(value, common.Reference):
return 'ref'
elif isinstance(value, bool):
return 'boolean'
elif isinstance(value, float):
return 'float'
elif isinstance(value, int):
return 'int'
else:
return 'str'
def do_action(f, typekey, thing_id, name, value, ordering=None):
if isinstance(value, list):
for i, v in enumerate(value):
do_action(f, typekey, thing_id, name, v, i)
elif isinstance(value, dict):
for k, v in value.items():
do_action(f, typekey, thing_id, name + '.' + k, v, ordering)
else:
datatype = find_datatype(value)
if datatype == 'ref':
value = self.get_metadata(value)
value = value and value.id
elif datatype == 'str':
value = value[:2048] # truncate long strings
elif isinstance(value, bool):
value = "ft"[int(value)] # convert boolean to 't' or 'f'
table = self.schema.find_table(typekey, datatype, name)
if table:
type_id = self.get_metadata(typekey).id
pid = self.get_property_id(type_id, name, create=True)
assert pid is not None
f(table, thing_id, pid, value, ordering)
def action_delete(table, thing_id, key_id, value, ordering):
self.db.delete(table, where='thing_id=$thing_id AND key_id=$key_id', vars=locals())
def action_insert(table, thing_id, key_id, value, ordering):
self.db.insert(table, seqname=False, thing_id=thing_id, key_id=key_id, value=value, ordering=ordering)
old_type = (olddata and olddata['type']) or None
new_type = newdata['type']
def _coerce(d):
if isinstance(d, dict) and 'key' in d:
return d['key']
else:
return d
old_type = _coerce(old_type)
new_type = _coerce(new_type)
for k in ['id', 'key', 'type', 'last_modified', 'created', 'revision']:
olddata.pop(k, None)
newdata.pop(k, None)
removed, unchanged, added = common.dict_diff(olddata, newdata)
if old_type != new_type:
removed = olddata.keys()
added = newdata.keys()
for k in removed:
do_action(action_delete, old_type, thing_id, k, olddata[k])
for k in added:
do_action(action_insert, new_type, thing_id, k, newdata[k])