def delta(graph, cursor, mongoDB): extractor = TableDataExtractor() for table in graph: sqlKeys = extractor.getPrimaryKeyValues(cursor, table) #print "SQL Keys: " + str(sqlKeys) mongoKeys = [str(entry[table.primaryKey[0]]) for entry in mongoDB[table.tableName].find()] #print "Mongo Keys: " + str(mongoKeys) sqlSet = set(sqlKeys) mongoSet = set(mongoKeys) newKeys = sqlSet.difference(mongoSet) insertNewKeys(mongoDB, cursor, extractor, newKeys, table, table.primaryKey[0]) deletedKeys = mongoSet.difference(sqlSet) deleteRemovedKeys(mongoDB, deletedKeys, table.tableName, table.primaryKey[0])