controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  queryParams: ['filter', 'sort'],

  filterParams: ['id', 'company_name'],
  filter: {},
  sort: '-id',

  actions: {
    search: function() {
      var params = {};

      this.get('queryParams').forEach(function(param){
        if (param === 'filter') {
          this.get('filterParams').forEach(function(filterParam){
            if (this.get('filter')[filterParam]) {
              if (!params['filter']) {
                params['filter'] = {}
              }
              params['filter'][filterParam] = this.get('filter')[filterParam];
            }
          }, this);
        } else {
          params[param] = this.get(param);
        }
      }, this);

      var results = this.store.find('account', params);
      this.set('model', results);
    }
  }
});