def __contains__( self, docid ):
"""Return whether the document identified by ``docid`` is present in
the database.
"""
try :
doc = Document( self, docid )
doc.head()
return True
except :
return False
def __delitem__( self, docid ):
"""Remove the document specified by ``docid`` from database"""
doc = Document( self, docid )
headers = doc.head()
etag = headers['Etag'][1:-1] # Strip the leading and trailing quotes
doc.delete( rev=etag )