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backbone_named_routes.js
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backbone_named_routes.js
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/*!
* Backbone Named Routes 0.1.0
* http://github.com/drtangible/backbone-named-routes.js
*/
Backbone.NamedRoutes = {
PATTERNS: {},
pathFor: function(pathPattern, urlParams, queryParams) {
var path = pathPattern;
if (path.charAt(0) !== "/") path = "/" + path;
if (Backbone.history.options && Backbone.history.options.root !== "/") path = Backbone.history.options.root + path;
for(var i = 0; i < urlParams.length; i++) {
var param = urlParams[i];
path = path.replace(/\:\w+/, param);
}
if (queryParams) {
path += "?" + $.param(queryParams);
}
return path;
}
};
_(Backbone.View.prototype).extend({
helper: Backbone.NamedRoutes
});
_(Backbone.Router.prototype).extend({
helper: Backbone.NamedRoutes
});
_(Backbone.Router.prototype).extend({
route: (function(original) {
return function(route, name, callback) {
// Create key to store path patterns for this route name.
Backbone.NamedRoutes.PATTERNS[name] = Backbone.NamedRoutes.PATTERNS[name] || {};
// Store the route pattern for the combination of this route name and the
// number of path params defined in the pattern.
var numberOfParams = route.match(/\:\w+/g) ? route.match(/\:\w+/g).length : 0;
Backbone.NamedRoutes.PATTERNS[name][numberOfParams] = route;
// Create the named route helper method for this route name.
Backbone.NamedRoutes[name + 'Path'] = function() {
var args = Array.prototype.slice.call(arguments);
var hasQueryParams = _(args[args.length-1]).isObject();
var numberOfParams = hasQueryParams ? arguments.length - 1 : arguments.length;
var routePattern = Backbone.NamedRoutes.PATTERNS[name][numberOfParams];
var queryParams = hasQueryParams ? args.pop() : null;
return Backbone.NamedRoutes.pathFor(routePattern, args, queryParams);
};
// Invoke the orginal #route method.
original.apply(this, arguments);
};
}(Backbone.Router.prototype.route))
});