def _isUnique(self,item,default=None,dm=None,munge=True):
# usage:
# variation of _getMember which only returns True (if not present) or False (if present)
# and optionally updates the index
# if item and not present and default supplied set it
# inputs:
# item - key whose value is to be retrieved
# default - value to set a new key to if supplied
# dm - dictionary or mtcollection munging mode ['keys'|'items'|'values']
# munge - mungeKey [True|False]
# returns:
# unique - [True|False]
unique = False
from metabulate.utils.utils import _mungeKey
if munge: item = _mungeKey(item,dm=dm)
if not item in self._items:
if default is not None: self._setItem(item,default)
unique = True
return unique
def _getMember(self,item,default=None,returnSet=None,dm=None,munge=True):
# usage:
# gets an item from the index if present
# if not indexes it against its default, returning this
# otherwise returns None
# munges the index to ensure it can be hashed
# inputs:
# item - key whose value is to be retrieved
# default - value to set a new key to if supplied
# returnSet - if None returns value if match found, else returns the default if applied
# dm - dictionary or mtcollection munging mode ['keys'|'items'|'values']
# munge - mungeKey [True|False]
# returns:
# value for key if present, default if supplied and key not present, else None
from metabulate.utils.utils import _mungeKey
if munge: item = _mungeKey(item,dm)
if item in self._items: return self._getItem(item,'')
else:
if default is not None:
self._setItem(item,default)
if returnSet is None: return None
else: return default
def _setMember(self,item,value):
from metabulate.utils.utils import _mungeKey
return self._setItem(_mungeKey(item),value)
