1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
// Single $ is special and does not get searched
// Double $$ is special an is client only (does not get sent to server)
function Model(entity, initial) {
this['$$entity'] = entity;
this.$loadFrom(initial||{});
this.$entity = entity['title'];
this.$migrate();
};
Model.copyDirectFields = function(src, dst) {
if (src === dst || !src || !dst) return;
var isDataField = function(src, dst, field) {
return (field.substring(0,2) !== '$$') &&
(typeof src[field] !== 'function') &&
(typeof dst[field] !== 'function');
};
for (var field in dst) {
if (isDataField(src, dst, field))
delete dst[field];
}
for (field in src) {
if (isDataField(src, dst, field))
dst[field] = src[field];
}
};
Model.prototype = {
'$migrate': function() {
merge(this['$$entity'].defaults, this);
return this;
},
'$merge': function(other) {
merge(other, this);
return this;
},
'$save': function(callback) {
this['$$entity'].datastore.save(this, callback === true ? undefined : callback);
if (callback === true) this['$$entity'].datastore.flush();
return this;
},
'$delete': function(callback) {
this['$$entity'].datastore.remove(this, callback === true ? undefined : callback);
if (callback === true) this['$$entity'].datastore.flush();
return this;
},
'$loadById': function(id, callback) {
this['$$entity'].datastore.load(this, id, callback);
return this;
},
'$loadFrom': function(other) {
Model.copyDirectFields(other, this);
return this;
},
'$saveTo': function(other) {
Model.copyDirectFields(this, other);
return this;
}
};
|
