MapCodeView.js

var MapCodeView = Backbone.View.extend({
    tagName: "textarea",
    initialize: function () {
        _.bindAll(this, "render","setBounds","setCode","getCode");
        this.model.bind("change:mapcode", this.render);
        this.model.bind("change:rows change:cols", this.setBounds);
        this.render();
    },
    setBounds: function() {
        //console.log("Bounds");
        this.$el.attr({
                "rows": this.model.get("rows")+1,
                "cols": this.model.get("cols")+1
            })
        ;
    },
    setCode: function() {
        this.$el.val(this.model.get("mapcode"));
    },
    getCode: function() {
        return this.$el.val();
    },
    render: function () {
        this.setBounds();
        this.setCode();
    }
})