overrides for Ext.data.reader.Json

JsonReaderOverride.js

Ext.define('overrides.data.Reader.Json', {
    override: 'Ext.data.reader.Json',

    /**
     * Override that makes sure to first delete the existing store so that keyless associations
     * can be reloaded when their parent record is reloaded.
     * JIRA: EXTJS-21175
     */
    readAssociated: function(record, data, readOptions) {
        var roles = record.associations,
            key, role;

        for (key in roles) {
            if (roles.hasOwnProperty(key)) {
                role = roles[key];

                if (role.cls) {
                    // override begin
                    // delete the existing store since we are reading in new data
                    if (Ext.getVersion('extjs').isLessThan('6.5') && record[role.storeName]) {
                        delete record[role.storeName];
                    }
                    // override end
                    role.read(record, data, this, readOptions);
                }
            }
        }
    }
});