_.each(this, function(value, property) {
if (value && snippet.isFunction(value._destroy)) {
value._destroy();
}
if (value && snippet.isFunction(value.stopListening)) {
value.stopListening();
}
this[property] = null;
}, this);
_getDefaultRequestOptions: function(type, params) {
var options = this.command[type];
if (snippet.isFunction(options.url)) { // for restful API url
options.url = options.url(params);
}
if (snippet.isFunction(options.data)) { // for custom request data
options.data = options.data(params);
}
options.type = (options.type) ? options.type.toLowerCase() : 'get';
options.dataType = options.dataType || 'json';
return options;
},
changeTemplateToElement: function(template, props) {
var html;
if (snippet.isFunction(template)) {
html = template(props);
} else {
html = util.replaceTemplate(template, props);
}
return util.getElementFromTemplate(html);
},
Collection.prototype.single = function(filter) {
var result,
useFilter = util.isFunction(filter);
this.each(function(item) {
if (!useFilter) {
result = item;
return false; // returning false can stop this loop
}
if (filter(item)) {
result = item;
return false; // returning false can stop this loop
}
return true;
}, this);
return result;
};