import couchdb

    class connector(object):
            def __init__(self, dbname):
                    couch = couchdb.Server()
                    try:
                            self.__db = couch[dbname]
                    except:
                            raise Exception #Implementar excepcion


            #Devuelve la lista de todos los eventos
            def get_events(self):
                    map_fun = '''function(doc) {
                                    if (doc.type == 'Event') {
                                            emit(doc.date, {Creator: doc.creator, Date: doc.date, Description: doc.description, Tags: doc.tags, Type: doc.type});
                                            }
                                    }'''

                    results = self.__db.query(map_fun)
                    ls = list(results)
                    return ls

            #Deuvle la lista de usuarios
            def get_users(self):
                    map_fun = '''function(doc) {
                                    if (doc.type == 'User') {
                                            emit(doc.type, {Description: doc.description, Subjects: doc.subjects, Subtype: doc.subtype, Type: doc.type});
                                            }
                                    }'''
                    results = self.__db.query(map_fun)
                    ls = list(results)
                    return ls