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!this._previousAttributes?null:this._previousAttributes[a]},previousAttributes:function(){return f.clone(this._previousAttributes)},isValid:function(){return!this.validate(this.attributes)},_validate:function(a,b){if(b.silent||!this.validate)return!0;a=f.extend({},this.attributes,a);var c=this.validate(a,b);if(!c)return!0;b&&b.error?b.error(this,c,b):this.trigger("error",this,c,b);return!1}});var x=h.Collection=function(a,b){b||(b={});b.model&&(this.model=b.model);b.comparator&&(this.comparator=b.comparator);
this._reset();this.initialize.apply(this,arguments);a&&this.reset(a,{silent:!0,parse:b.parse})};f.extend(x.prototype,m,{model:u,initialize:function(){},toJSON:function(a){return this.map(function(b){return b.toJSON(a)})},add:function(a,b){var c,d,e,h,l,m={},n={},k=[];b||(b={});a=f.isArray(a)?a.slice():[a];c=0;for(d=a.length;c<d;c++){if(!(e=a[c]=this._prepareModel(a[c],b)))throw Error("Can't add an invalid model to a collection");h=e.cid;l=e.id;m[h]||this._byCid[h]||null!=l&&(n[l]||this._byId[l])?
k.push(c):m[h]=n[l]=e}for(c=k.length;c--;)a.splice(k[c],1);c=0;for(d=a.length;c<d;c++)(e=a[c]).on("all",this._onModelEvent,this),this._byCid[e.cid]=e,null!=e.id&&(this._byId[e.id]=e);this.length+=d;w.apply(this.models,[null!=b.at?b.at:this.models.length,0].concat(a));this.comparator&&this.sort({silent:!0});if(b.silent)return this;c=0;for(d=this.models.length;c<d;c++)if(m[(e=this.models[c]).cid])b.index=c,e.trigger("add",e,this,b);return this},remove:function(a,b){var c,d,e,h;b||(b={});a=f.isArray(a)?
a.slice():[a];c=0;for(d=a.length;c<d;c++)if(h=this.getByCid(a[c])||this.get(a[c]))delete this._byId[h.id],delete this._byCid[h.cid],e=this.indexOf(h),this.models.splice(e,1),this.length--,b.silent||(b.index=e,h.trigger("remove",h,this,b)),this._removeReference(h);return this},push:function(a,b){a=this._prepareModel(a,b);this.add(a,b);return a},pop:function(a){var b=this.at(this.length-1);this.remove(b,a);return b},unshift:function(a,b){a=this._prepareModel(a,b);this.add(a,f.extend({at:0},b));return a},
shift:function(a){var b=this.at(0);this.remove(b,a);return b},get:function(a){return null==a?void 0:this._byId[null!=a.id?a.id:a]},getByCid:function(a){return a&&this._byCid[a.cid||a]},at:function(a){return this.models[a]},where:function(a){return f.isEmpty(a)?[]:this.filter(function(b){for(var c in a)if(a[c]!==b.get(c))return!1;return!0})},sort:function(a){a||(a={});if(!this.comparator)throw Error("Cannot sort a set without a comparator");var b=f.bind(this.comparator,this);1==this.comparator.length?
this.models=this.sortBy(b):this.models.sort(b);a.silent||this.trigger("reset",this,a);return this},pluck:function(a){return f.map(this.models,function(b){return b.get(a)})},reset:function(a,b){a||(a=[]);b||(b={});for(var c=0,d=this.models.length;c<d;c++)this._removeReference(this.models[c]);this._reset();this.add(a,f.extend({silent:!0},b));b.silent||this.trigger("reset",this,b);return this},fetch:function(a){a=a?f.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=this,c=a.success;a.success=function(d,
e,f){b[a.add?"add":"reset"](b.parse(d,f),a);c&&c(b,d)};a.error=h.wrapError(a.error,b,a);return(this.sync||h.sync).call(this,"read",this,a)},create:function(a,b){var c=this;b=b?f.clone(b):{};a=this._prepareModel(a,b);if(!a)return!1;b.wait||c.add(a,b);var d=b.success;b.success=function(e,f,h){b.wait&&c.add(e,b);d?d(e,f):e.trigger("sync",a,f,b)};a.save(null,b);return a},parse:function(a,b){return a},chain:function(){return f(this.models).chain()},_reset:function(a){this.length=0;this.models=[];this._byId=
{};this._byCid={}},_prepareModel:function(a,b){b||(b={});a instanceof u?a.collection||(a.collection=this):(b.collection=this,a=new this.model(a,b),a._validate(a.attributes,b)||(a=!1));return a},_removeReference:function(a){this==a.collection&&delete a.collection;a.off("all",this._onModelEvent,this)},_onModelEvent:function(a,b,c,d){("add"==a||"remove"==a)&&c!=this||("destroy"==a&&this.remove(b,d),b&&a==="change:"+b.idAttribute&&(delete this._byId[b.previous(b.idAttribute)],this._byId[b.id]=b),this.trigger.apply(this,
arguments))}});f.each("forEach each map reduce reduceRight find detect filter select reject every all some any include contains invoke max min sortBy sortedIndex toArray size first initial rest last without indexOf shuffle lastIndexOf isEmpty groupBy".split(" "),function(a){x.prototype[a]=function(){return f[a].apply(f,[this.models].concat(f.toArray(arguments)))}});var D=h.Router=function(a){a||(a={});a.routes&&(this.routes=a.routes);this._bindRoutes();this.initialize.apply(this,arguments)},F=/:\w+/g,
G=/\*\w+/g,H=/[-[\]{}()+?.,\\^$|#\s]/g;f.extend(D.prototype,m,{initialize:function(){},route:function(a,b,c){h.history||(h.history=new r);f.isRegExp(a)||(a=this._routeToRegExp(a));c||(c=this[b]);h.history.route(a,f.bind(function(d){d=this._extractParameters(a,d);c&&c.apply(this,d);this.trigger.apply(this,["route:"+b].concat(d));h.history.trigger("route",this,b,d)},this));return this},navigate:function(a,b){h.history.navigate(a,b)},_bindRoutes:function(){if(this.routes){var a=[],b;for(b in this.routes)a.unshift([b,
this.routes[b]]);b=0;for(var c=a.length;b<c;b++)this.route(a[b][0],a[b][1],this[a[b][1]])}},_routeToRegExp:function(a){a=a.replace(H,"\\$&").replace(F,"([^/]+)").replace(G,"(.*?)");return RegExp("^"+a+"$")},_extractParameters:function(a,b){return a.exec(b).slice(1)}});var r=h.History=function(){this.handlers=[];f.bindAll(this,"checkUrl")},y=/^[#\/]/,z=/msie [\w.]+/;r.started=!1;f.extend(r.prototype,m,{interval:50,getHash:function(a){return(a=(a?a.location:window.location).href.match(/#(.*)$/))?a[1]:
""},getFragment:function(a,b){if(null==a)if(this._hasPushState||b){a=window.location.pathname;var c=window.location.search;c&&(a+=c)}else a=this.getHash();a.indexOf(this.options.root)||(a=a.substr(this.options.root.length));return a.replace(y,"")},start:function(a){if(r.started)throw Error("Backbone.history has already been started");r.started=!0;this.options=f.extend({},{root:"/"},this.options,a);this._wantsHashChange=!1!==this.options.hashChange;this._wantsPushState=!!this.options.pushState;this._hasPushState=
!(!this.options.pushState||!window.history||!window.history.pushState);a=this.getFragment();var b=document.documentMode;if(b=z.exec(navigator.userAgent.toLowerCase())&&(!b||7>=b))this.iframe=l('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo("body")[0].contentWindow,this.navigate(a);this._hasPushState?l(window).bind("popstate",this.checkUrl):this._wantsHashChange&&"onhashchange"in window&&!b?l(window).bind("hashchange",this.checkUrl):this._wantsHashChange&&(this._checkUrlInterval=setInterval(this.checkUrl,
this.interval));this.fragment=a;a=window.location;b=a.pathname==this.options.root;if(this._wantsHashChange&&this._wantsPushState&&!this._hasPushState&&!b)return this.fragment=this.getFragment(null,!0),window.location.replace(this.options.root+"#"+this.fragment),!0;this._wantsPushState&&(this._hasPushState&&b&&a.hash)&&(this.fragment=this.getHash().replace(y,""),window.history.replaceState({},document.title,a.protocol+"//"+a.host+this.options.root+this.fragment));if(!this.options.silent)return this.loadUrl()},
stop:function(){l(window).unbind("popstate",this.checkUrl).unbind("hashchange",this.checkUrl);clearInterval(this._checkUrlInterval);r.started=!1},route:function(a,b){this.handlers.unshift({route:a,callback:b})},checkUrl:function(a){a=this.getFragment();a==this.fragment&&this.iframe&&(a=this.getFragment(this.getHash(this.iframe)));if(a==this.fragment)return!1;this.iframe&&this.navigate(a);this.loadUrl()||this.loadUrl(this.getHash())},loadUrl:function(a){var b=this.fragment=this.getFragment(a);return f.any(this.handlers,
function(a){if(a.route.test(b))return a.callback(b),!0})},navigate:function(a,b){if(!r.started)return!1;if(!b||!0===b)b={trigger:b};var c=(a||"").replace(y,"");this.fragment!=c&&(this._hasPushState?(0!=c.indexOf(this.options.root)&&(c=this.options.root+c),this.fragment=c,window.history[b.replace?"replaceState":"pushState"]({},document.title,c)):this._wantsHashChange?(this.fragment=c,this._updateHash(window.location,c,b.replace),this.iframe&&c!=this.getFragment(this.getHash(this.iframe))&&(b.replace||
this.iframe.document.open().close(),this._updateHash(this.iframe.location,c,b.replace))):window.location.assign(this.options.root+a),b.trigger&&this.loadUrl(a))},_updateHash:function(a,b,c){c?a.replace(a.toString().replace(/(javascript:|#).*$/,"")+"#"+b):a.hash=b}});var E=h.View=function(a){this.cid=f.uniqueId("view");this._configure(a||{});this._ensureElement();this.initialize.apply(this,arguments);this.delegateEvents()},L=/^(\S+)\s*(.*)$/,A="model collection el id attributes className tagName".split(" ");
f.extend(E.prototype,m,{tagName:"div",$:function(a){return this.$el.find(a)},initialize:function(){},render:function(){return this},remove:function(){this.$el.remove();return this},make:function(a,b,c){a=document.createElement(a);b&&l(a).attr(b);c&&l(a).html(c);return a},setElement:function(a,b){this.$el&&this.undelegateEvents();this.$el=a instanceof l?a:l(a);this.el=this.$el[0];!1!==b&&this.delegateEvents();return this},delegateEvents:function(a){if(a||(a=t(this,"events"))){this.undelegateEvents();
for(var b in a){var c=a[b];f.isFunction(c)||(c=this[a[b]]);if(!c)throw Error('Method "'+a[b]+'" does not exist');var d=b.match(L),e=d[1],d=d[2],c=f.bind(c,this),e=e+(".delegateEvents"+this.cid);""===d?this.$el.bind(e,c):this.$el.delegate(d,e,c)}}},undelegateEvents:function(){this.$el.unbind(".delegateEvents"+this.cid)},_configure:function(a){this.options&&(a=f.extend({},this.options,a));for(var b=0,c=A.length;b<c;b++){var d=A[b];a[d]&&(this[d]=a[d])}this.options=a},_ensureElement:function(){if(this.el)this.setElement(this.el,
!1);else{var a=t(this,"attributes")||{};this.id&&(a.id=this.id);this.className&&(a["class"]=this.className);this.setElement(this.make(this.tagName,a),!1)}}});u.extend=x.extend=D.extend=E.extend=function(a,b){var c=I(this,a,b);c.extend=this.extend;return c};var d={create:"POST",update:"PUT","delete":"DELETE",read:"GET"};h.sync=function(a,b,c){var g=d[a];c||(c={});var e={type:g,dataType:"json"};c.url||(e.url=t(b,"url")||J());if(!c.data&&b&&("create"==a||"update"==a))e.contentType="application/json",
e.data=JSON.stringify(b.toJSON());h.emulateJSON&&(e.contentType="application/x-www-form-urlencoded",e.data=e.data?{model:e.data}:{});if(h.emulateHTTP&&("PUT"===g||"DELETE"===g))h.emulateJSON&&(e.data._method=g),e.type="POST",e.beforeSend=function(a){a.setRequestHeader("X-HTTP-Method-Override",g)};"GET"!==e.type&&!h.emulateJSON&&(e.processData=!1);return l.ajax(f.extend(e,c))};h.wrapError=function(a,b,c){return function(d,e){e=d===b?e:d;a?a(b,e,c):b.trigger("error",b,e,c)}};var n=function(){},I=function(a,
b,c){var d;d=b&&b.hasOwnProperty("constructor")?b.constructor:function(){a.apply(this,arguments)};f.extend(d,a);n.prototype=a.prototype;d.prototype=new n;b&&f.extend(d.prototype,b);c&&f.extend(d,c);d.prototype.constructor=d;d.__super__=a.prototype;return d},t=function(a,b){return!a||!a[b]?null:f.isFunction(a[b])?a[b]():a[b]},J=function(){throw Error('A "url" property or function must be specified');}}).call(this);