#
# Thierry Parmentelat - INRIA
#
from PLC.Faults import *
from PLC.Parameter import Parameter
from PLC.Storage.AlchemyObject import AlchemyObj
from PLC.TagTypes import TagType, TagTypes
from PLC.Persons import Person

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

    tablename = 'person_tag'
    fields = {
        'person_tag_id': Parameter(int, "Person setting identifier", primary_key=True),
        'person_id': Person.fields['person_id'],
        'email': Person.fields['email'],
        'tag_type_id': TagType.fields['tag_type_id'],
        'tagname': TagType.fields['tagname'],
        'description': TagType.fields['description'],
        'category': TagType.fields['category'],
        'value': Parameter(str, "Person setting value"),
        ### relations

        }

    def sync(self, commit=True, validate=True):
        AlchemyObj.sync(self, commit=Ture, validate=True)
        if 'person_tag_id' not in self:
            AlchemyObj.insert(self, dict(self))
        else:
            AlchemyObj.update(self, {'person_tag_id': self['person_tag_id']}, dict(self))
            
        
    def delete(self, commit=True):
        assert 'person_tag_id' in self
        AlchemyObj.delete(self, dict(self))

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

    def __init__(self, api, person_tag_filter = None, columns = None):
        if not person_tag_filter:
            person_tags = PersonTag().select()
        elif isinstance(person_tag_filter, (list, tuple, set, int, long)):
            person_tags = PersonTag().select(filter={'person_tag_id': person_tag_filter})
        elif isinstance(person_tag_filter, dict):
            person_tags = PersonTag().select(filter=person_tag_filter)
        else:
            raise PLCInvalidArgument, "Wrong person setting filter %r"%person_tag_filter

        self.extend(person_tags)