73:c859feab1f4a
Anton Shestakov <av6@dwimlabs.net>, Wed, 02 Mar 2016 21:25:41 +0800
test: test data after resource deletion, just in case

next change 95:ba60cdc7a535
previous change 33:9dfe8668e7fe

static/js/backbone.shard.js

Permissions: -rw-r--r--

Other formats: Feeds:
/*
* backbone.shard.js.
*
* (c) 2013 Anton Shestakov.
*
* This extension to Backbone may be freely distributed
* under the MIT license:
* http://opensource.org/licenses/mit-license.php
*/
Backbone.Shard = function(options) {
this._collection = options.collection;
this._filter = options.filter;
this.models = this._collection.filter(this._filter);
this._collection
.on('all', function(event, model) {
if (event == 'change') {
if (this._filter(model) && _(this.models).contains(model)) {
this.trigger.apply(this, arguments);
}
if (this._filter(model) && !_(this.models).contains(model)) {
this.models.push(model);
this.trigger('add', model);
}
if (!this._filter(model) && _(this.models).contains(model)) {
this.models = _.without(this.models, model);
this.trigger('remove', model);
}
} else if (/^change:/.test(event) && this._filter(model) && _(this.models).contains(model)) {
this.trigger.apply(this, arguments);
}
}, this)
.on('add', function(model) {
if (this._filter(model) && !_(this.models).contains(model)) {
this.models.push(model);
this.trigger('add', model);
}
}, this)
.on('remove', function(model) {
if (this._filter(model) && _(this.models).contains(model)) {
this.models = _.without(this.models, model);
this.trigger('remove', model);
}
}, this)
.on('reset', function() {
this.models = this._collection.filter(this._filter);
this.trigger('reset');
}, this);
this.initialize.apply(this, arguments);
};
_.extend(Backbone.Shard.prototype, Backbone.Events, {
initialize: function() {},
pluck: function(attr) {
return _.map(this.models, function(model) { return model.get(attr); });
}
});
// Underscore methods that we want to implement on the Shard.
var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
'tail', 'drop', 'last', 'without', 'indexOf', 'shuffle', 'lastIndexOf',
'isEmpty', 'chain'];
// Mix in each Underscore method as a proxy to `Shard#models`.
_.each(methods, function(method) {
Backbone.Shard.prototype[method] = function() {
var args = Array.prototype.slice.call(arguments);
args.unshift(this.models);
return _[method].apply(_, args);
};
});
// Underscore methods that take a property name as an argument.
var attributeMethods = ['groupBy', 'countBy', 'sortBy'];
// Use attributes instead of properties.
_.each(attributeMethods, function(method) {
Backbone.Shard.prototype[method] = function(value, context) {
var iterator = _.isFunction(value) ? value : function(model) {
return model.get(value);
};
return _[method](this.models, iterator, context);
};
});