#
# Thierry Parmentelat - INRIA
#
from PLC.Faults import *
from PLC.Parameter import Parameter
from PLC.Filter import Filter
from PLC.Table import Row, Table
from PLC.Storage.AlchemyObject import AlchemyObj
from PLC.TagTypes import TagType, TagTypes

class SiteTag(AlchemyObj):
    """
    Representation of a row in the site_tag.
    To use, instantiate with a dict of values.
    """

    tablename = 'site_tags'
    fields = {
        'site_tag_id': Parameter(int, "Site setting identifier", primary_key=True),
        'site_id': Parameter(int, "Site identifier"),
        'login_base': Parameter(str, "Site login base"),
        'tag_type_id': Parameter(int, "Tag Type identifier"),
        'tagname': Parameter(str, "Tag Name"),
        'description': Parameter(str, "Description"),
        'category': Parameter(str, "Category"),
        'value': Parameter(str, "Site setting value"),
        ### relations

        }

    def sync(self, insert=False, validate=True):
        AlchemyObj.sync(self, insert, validate)
        if insert == True or 'site_tag_id' not in self:
            AlchemyObj.insert(self, dict(self))
        else:
            AlchemyObj.update(self, dict(self))  

    def delete(self, commit=True):
        AlchemyObj.delete(self, dict(self))

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

    def __init__(self, api, site_tag_filter = None, columns = None):
        from PLC.Sites import Site
        if not site_tag_filter:
            site_tags = SiteTag().select()
        if isinstance(site_tag_filter, (list, tuple, set, int, long)):
            site_tags = SiteTag().select(filter={'site_tag_id': site_tag_filter})
        elif isinstance(site_tag_filter, dict):
            site_tags = SiteTag().select(filter=site_tag_filter)
        else:
            raise PLCInvalidArgument, "Wrong site setting filter %r"%site_tag_filter

        for site_tag in site_tags:
            site_tag = SiteTag(self.api, object=site_tag)
            self.append(site_tag)