from types import StringTypes
import time
import re
import datetime

from PLC.Faults import *
from PLC.Parameter import Parameter, Mixed
from PLC.Filter import Filter
from PLC.Debug import profile
from PLC.Timestamp import Timestamp
from PLC.Storage.AlchemyObject import AlchemyObj

class ConfFileNode(AlchemyObj):
    """
    Representation of a row in the conf_file_node table. To use, optionally
    instantiate with a dict of values. Update as you would a
    dict. Commit to the database with sync().To use, instantiate
    with a dict of values.
    """

    tablename = 'conf_file_node'
 
    fields = {
        'conf_file_id': Parameter(int, "Conf file identifier", primary_key=True),
        'node_id': Parameter(int, "Node identifier", indexed=True),
        }

    tags = {}

    def sync(self, commit = True, validate=True):
        """
        Add the record
        """
        AlchemyObj.sync(self, commit, validate)
        AlchemyObj.insert(self, dict(self))

    def delete(self, commit = True):
        """
        Delete existing slice.
        """
        AlchemyObj.delete(self, dict(self))


class ConfFileNodes(list):
    """
    Representation of row(s) from the conf_file_nodes table in the
    database.
    """

    def __init__(self, api, filter = None, columns = None):
         
        # the view that we're selecting upon: start with view_slices
        if not filter:
            conf_file_nodes = ConfFileNode().select()
        elif isinstance(filter, dict):
            conf_file_nodes = ConfFileNode().select(filter=filter)
        else:
            raise PLCInvalidArgument, "Wrong conf_file_node filter %r"%filter

        for conf_file_node in conf_file_nodes:
            self.append(ConfFileNode(api, object=conf_file_node))