foam-framework
Version:
MVC metaprogramming framework
65 lines (59 loc) • 1.9 kB
JavaScript
/**
* @license
* Copyright 2014 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
CLASS({
package: 'foam.dao',
name: 'FindFallbackDAO',
extends: 'foam.dao.ProxyDAO',
properties: [
{
name: 'fallback'
}
],
methods: {
find: function(id, sink) {
var sid = ""+id;
//console.log("FFD find: ", sid);
this.delegate.find(sid, {
put: function(o) {
//console.log("FFD found primary: ", sid);
this.delegate.put(o);
sink && sink.put && sink.put(o);
}.bind(this),
error: function() {
if ( ! this.fallback ) {
//console.log("FFD primary fail, no fallback: ", sid);
sink && sink.error && sink.error();
} else {
var fid = ""+sid;
//console.log("FFD fallback find: ", fid);
this.fallback.find(fid, {
put: function(o) {
//console.log("FFD fallback found: ", fid);
this.delegate.put(o);
sink && sink.put && sink.put(o);
}.bind(this),
error: function() {
//console.log("FFD fallback not found: ", fid);
sink && sink.error && sink.error();
}.bind(this)
});
}
}.bind(this)
});
}
}
});