以编程方式更改Drupal个人资料图片

Question

我想以编程方式在Drupal网站上更改我的个人资料图片，但它只在一个地方更改图片，因此它具有良好的图像，但我们每次显示它时都会继续看到旧图片。我需要改变什么？

这是我的代码：

<form id="edit-profile-image" method="post" enctype="multipart/form-data">
    Your Photo: <input type="file" name="photo" size="25" />
    <input class="edit-profile-image-submit" type="submit" name="submit" value="Submit" />
</form>

它从这种形式得到了图片：

$("body").on('click','.edit-profile-image-submit',function(){

    var formData = new FormData($('#edit-profile-image')[0]);
    $.ajax({
        url: '/sites/all/themes/CEX/functions/edit-profile-image.php',
        type: 'POST',
        data: formData,
        async: false,
        cache: false,
        contentType: false,
        processData: false,
        success: function (data) {
            alert(data)
        },
    });

    return false;
});

有了这个ajax：

Session session = HibernateSessionFactory.getSession(); 
Transaction transaction = session.beginTransaction();
VoucherDetail voucherDetail = new VoucherDetail();              
voucherDetail.setVoucher(voucher);
voucherDetail = (VoucherDetail) save(voucherDetail2, session, transaction);
//i commented these statements so i don't commit(for testing) 
//session.flush();              
//transaction.commit();
//session.close();

//Then i rollback and flush session for assurity
if(session.isOpen()){
        session.flush();    
        transaction.rollback();                                 
        session.close();
}

//My save function
@SuppressWarnings("unchecked")
public PAK save(ED newInstance, Session session, Transaction transaction) {        
    try {           

        session.saveOrUpdate(newInstance);           
        System.out.println("--------Transaction Committed");
        return (PAK) newInstance;

    } catch (Exception e) {

        try {
            session.merge(newInstance);                                  
            return (PAK) newInstance;
        } catch (HibernateException e1) {
            LOG.error(GD.class.getName(), e1);
        }

        LOG.error(GD.class.getName(), e);
    }           
    return null;
}

我希望我什么都不会忘记，如果有人可以帮助我，我会坚持下去...... 谢谢