How to display data from the database in MODx.combo.ComboBox?

Question

MODX

Good day!
I started to understand the creation of components for Modx Revo and a problem arose:
There is a table in which we store reviews for the catalog of companies in it fields like: id, text, name, company_id. In the admin panel of the component, we can create and edit reviews, but (!) It is very inconvenient to follow them by the company ID, so it would be great to take the name of this company from the database and replace the number with it, but keep the number at the same time.
Combobox example. How can I change it to suit my needs. I know that you can connect a connector (URL field), but in what form should it give out data?, unless of course I understood the essence of the connector correctly

EWreview.combo.Rate = function(config) {
    config = config || {};
    Ext.applyIf(config,{
        store: new Ext.data.ArrayStore({
            id: 0
            ,fields: ['rate','display']
            ,url: ??????????????
            ,data: [
                ['1','1']
                ,['2','2']
                ,['3','3']
                ,['4','4']
                ,['5','5']
            ]
        })
        ,mode: 'local'
        ,displayField: 'display'
        ,valueField: 'rate'
    });
    EWreview.combo.Rate.superclass.constructor.call(this,config);
};
Ext.extend(EWreview.combo.Rate,MODx.combo.ComboBox);
Ext.reg('ewreview-combo-rate',EWreview.combo.Rate);

Answer 1

I asked myself, I answered

EWreview.combo.Rate = function(config) {
    config = config || {};
    Ext.applyIf(config,{
        name: 'name'
        ,hiddenName: 'product_id'
        ,displayField: 'name'
        ,valueField: 'product_id'
        ,fields: ['product_id','name']
        ,pageSize: 20
        ,url: EWreview.config.connector_url
        ,baseParams: {
            action: 'ew/getlist'
        }
        ,typeAhead: true
        ,editable: true
    });
    EWreview.combo.Rate.superclass.constructor.call(this,config);
};
Ext.extend(EWreview.combo.Rate,MODx.combo.ComboBox);
Ext.reg('ewreview-combo-rate',EWreview.combo.Rate);