有没有一种方法可以在extjs中直接使用枚举和标记域？

Ext.define('MyModel', {
    extend: 'Ext.data.Model',
    fields: [
        { name: 'status', type: 'string' },
        { name: 'priority', type: 'string' },
        { name: 'type', type: 'string' },
        // 定义枚举类型字段
        { name: 'statusEnum', type: 'auto', defaultValue: ['Open', 'Closed', 'Pending'] },
        { name: 'priorityEnum', type: 'auto', defaultValue: ['High', 'Medium', 'Low'] },
        { name: 'typeEnum', type: 'auto', defaultValue: ['Bug', 'Feature', 'Task'] }
    ]
});

var myModel = Ext.create('MyModel', {
    status: 'Open',
    priority: 'High',
    type: 'Bug'
});

console.log(myModel.get('statusEnum')); // 输出 ['Open', 'Closed', 'Pending']

Ext.create('Ext.form.Panel', {
    title: 'My Form',
    items: [{
        xtype: 'textfield',
        fieldLabel: 'Name'
    }, {
        xtype: 'checkbox',
        fieldLabel: 'Active',
        name: 'active',
        inputValue: true,
        uncheckedValue: false
    }],
    buttons: [{
        text: 'Submit',
        handler: function() {
            var form = this.up('form').getForm();
            if (form.isValid()) {
                var values = form.getValues();
                console.log(values);
            }
        }
    }]
});