var Backbone = require('backbone'); module.exports = Backbone.Collection.extend({ model: function (d, opts) { var attrs = {}; attrs.id = d.id; if (d.options.tile_style) { attrs.cartocss = d.options.tile_style; } return new Backbone.Model(attrs); }, resetByLayersData: function (data) { this.reset(data, { silent: true }); }, findById: function (id) { return this.findWhere({id: id}); } });