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/*
* Copyright (C) 2011 Alexander Larsson <alexl@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using Folks;
public class Contacts.LinkOperation : Operation {
private weak Store store;
private Gee.LinkedList<Individual> individuals;
private Gee.HashSet<Gee.HashSet<Persona>> personas_to_link
= new Gee.HashSet<Gee.HashSet<Persona>> ();
private bool _reversable = false;
public override bool reversable { get { return this._reversable; } }
private string _description;
public override string description { owned get { return this._description; } }
public LinkOperation (Store store, Gee.LinkedList<Individual> individuals) {
this.store = store;
this.individuals = individuals;
this._description = ngettext ("Linked %d contact",
"Linked %d contacts", individuals.size)
.printf (individuals.size);
}
/**
* Link individuals
*/
public override async void execute () throws GLib.Error {
var personas_to_link = new Gee.HashSet<Persona> ();
foreach (var i in individuals) {
var saved_personas = new Gee.HashSet<Persona> ();
foreach (var persona in i.personas) {
personas_to_link.add (persona);
saved_personas.add (persona);
}
this.personas_to_link.add (saved_personas);
}
yield this.store.aggregator.link_personas (personas_to_link);
this._reversable = true;
notify_property ("reversable");
}
/**
* Undoing means unlinking
*/
public override async void _undo () throws GLib.Error {
var individual = this.personas_to_link.first_match(() => {return true;})
.first_match(() => {return true;}).individual;
yield store.aggregator.unlink_individual (individual);
foreach (var personas in personas_to_link) {
yield this.store.aggregator.link_personas (personas);
}
this._reversable = false;
notify_property ("reversable");
}
}
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