[add.hide]: function (state, action) {
     return $.extend({}, state, action.data, {
         visible: false,
         hasError:false,
         url:''
     });
 }

 [add.error]:function(state,action) {
     return $.extend({},state,{
       hasError:true,
       isLoading:false,
       errorMessage:action.errorMessage
   });  
 },

 constructor(_calendar, overrides) {
   super()
   this._calendar = _calendar
   this.overrides = $.extend({}, overrides) // make a copy
   this.dynamicOverrides = {}
   this.compute()
 }

  // cleans meta data and other non peristent state
  getSaveModelClone() {
    // temp remove stuff
    var events = this.events;
    var meta = this.meta;
    var rows = this.rows;
    var variables = this.templating.list;

    delete this.events;
    delete this.meta;

    // prepare save model
    this.rows = _.map(rows, row => row.getSaveModel());
    this.templating.list = _.map(variables, variable => variable.getSaveModel ? variable.getSaveModel() : variable);

    // make clone
    var copy = $.extend(true, {}, this);
    //  sort clone
    copy = sortByKeys(copy);

    // restore properties
    this.events = events;
    this.meta = meta;
    this.rows = rows;
    this.templating.list = variables;

    return copy;
  }

    [player.remove]: function (state, action) {

        return $.extend({}, state, {
            playlist: state.playlist.filter(data => {
                return data.id != action.id;
            })
        });
    },

 /*
 If falsy, resets all the gutters to 0
 */
 setGutters(gutters) {
   if (!gutters) {
     this.gutters = {}
   } else {
     $.extend(this.gutters, gutters)
   }
   this.updateSize()
 }

 [session.success]:function(state,action) {
   sessionStorage['username2']=action.data.user.username;
   sessionStorage['studioid2']=action.data.user.studioId;
   return $.extend({},state,action.data,{
       hasError:false,
       isLoading:false
   });  
 },

  queryScroll() {
    const scroll = View.prototype.queryScroll.apply(this, arguments)

    if (this.isResourcesRendered) {
      $.extend(scroll, this.queryResourceScroll())
    }

    return scroll
  }

EventDef.prototype.applyMiscProps = function(rawProps) {
  rawProps = $.extend({}, rawProps) // clone, because of delete

  this.resourceIds = Resource.extractIds(rawProps, this.source.calendar)

  delete rawProps.resourceId
  delete rawProps.resourceIds

  origMethods.applyMiscProps.apply(this, arguments)
}