带有验证的 Opencart 额外字段客户编号

Question

我正在尝试在客户的 (admin->customer->tab general) 客户部分添加一个新字段（以编程方式），称为客户编号。一切都按预期工作，但我不想在数据库中获得双数，因为用户可以输入自己的号码。每次从管理员创建新用户时，代码都会查找最后（最高）客户编号并为其添加 +1。

我找不到这种情况的解决方案：

• 如果客户已经存在（编辑模式），它应该显示一个不可编辑的值（只读）

• 如果注册新客户，则应显示最后（最高）客户编号（可编辑）。如果用户输入的数字低于最高客户编号，则应显示错误，并应显示最高客户编号 + 1。

这是我到目前为止的代码 在控制器（getForm）中：

if (isset($this->error['customer_number'])) {
    $data['error_customer_number'] = $this->error['customer_number'];
} else {
    $data['error_customer_number'] = '';
}

$data['latest_customer'] = $this->model_sale_customer->getLatestCustomerNumber();

if (isset($this->request->post['customer_number'])) {
    $data['customer_number'] = $this->request->post['customer_number'];
} elseif (!empty($customer_info)) {
    $data['customer_number'] = $customer_info['customer_number'];
} else {
    $data['customer_number'] = '0';
}

在验证（validateForm）中：

$data['latest_customer'] = $this->model_sale_customer->getLatestCustomerNumber();

if (isset($this->request->post['customer_number']) && ($this->request->post['customer_number'] <= $data['latest_customer'])) {
    $this->error['customer_number'] = $this->language->get('error_customer_number');
}

在我的 customer_form.tpl 我有：

<div class="form-group">
   <label class="col-sm-2 control-label" for="input-customer-number"><span data-toggle="tooltip" title="<?php echo $help_customer_number; ?>"> <?php echo $entry_customer_number; ?></span></label>
   <div class="col-sm-10">
      <?php if (!empty($customer_number) || $customer_number != 0){ ?>
      <input type="text" name="customer_number" value="<?php echo $customer_number; ?>" placeholder="<?php echo $entry_customer_number; ?>" id="input-customer-number" class="form-control" />
      <?php }else{ ?>
      <input type="text" name="customer_number" value="<?php echo $latest_customer + 1; ?>" placeholder="<?php echo $entry_customer_number; ?>" id="input-customer-number" class="form-control" />
      <?php if ($error_customer_number) { ?>
      <div class="text-danger"><?php echo $error_customer_number; ?></div>
      <?php  } ?>
      <?php } ?>
   </div>
</div>

这显然不起作用，因为在编辑现有客户时，客户编号始终低于系统中的最高客户编号（因此会出错）。希望有人可以帮助我解决这个问题！提前致谢！

Answer 1

对于其他正在研究此问题的人，我自己解决了我的问题。阿里的评论让我思考。我添加了一个隐藏的输入字段，以便我可以检查它。是否是现有客户（有或没有）。我只需要检查新客户，因为这是一个输入字段（现有是只读的，因此不可编辑）。检查是看这是否是新客户（值 0） - 过帐值

这是我在控制器（getForm）中的代码：

if (isset($this->error['customer_number'])) {
$data['error_customer_number'] = $this->error['customer_number'];
} else {
$data['error_customer_number'] = '';
}

if (isset($this->request->post['customer_number']) && (($this->request->post['customer_number'] < $data['latest_customer']) && $this->request->post['existing_customer'] == '0')) {
        $this->request->post['customer_number'] = '0';
        $data['customer_number'] = '0';
    } elseif (isset($this->request->post['customer_number'])) {
        $data['customer_number'] = $this->request->post['customer_number'];
    } elseif (!empty($customer_info)) {
        $data['customer_number'] = $customer_info['customer_number'];
    } else {
        $data['customer_number'] = '0';
    }

    if (isset($this->request->post['existing_customer'])) {
        $data['existing_customer'] = $this->request->post['existing_customer'];
    } else {
        $data['existing_customer'] = '0';
    }

在验证（validateForm）中：

$data['latest_customer'] = $this->model_customer_customer->getLatestCustomerNumber();

    if (isset($this->request->post['customer_number']) && (($this->request->post['customer_number'] < $data['latest_customer']) && ($this->request->post['existing_customer'] == '0' || $data['existing_customer'] = '0'))) {
        $this->error['customer_number'] = $this->language->get('error_customer_number');
    }

在我的 customer_form.tpl 我有：

 <div class="form-group">
                <label class="col-sm-2 control-label" for="input-customer-number"><span data-toggle="tooltip" title="<?php echo $help_customer_number; ?>"> <?php echo $entry_customer_number; ?></span></label>
                <div class="col-sm-10">
                <?php if (!empty($customer_number) || $customer_number != 0){ ?>
                  <input type="text" name="customer_number" value="<?php echo $customer_number; ?>" placeholder="<?php echo $entry_customer_number; ?>" id="input-customer-number" class="form-control" readonly />
                  <input type="hidden" name="existing_customer" value="1" id="input-existing-customer" class="form-control" />
                  <?php }else{ ?>

                    <input type="text" name="customer_number" value="<?php echo $latest_customer + 1; ?>" placeholder="<?php echo $entry_customer_number; ?>" id="input-customer-number" class="form-control" />
                    <input type="hidden" name="existing_customer" value="0" id="input-existing-customer" class="form-control" />
                    <?php } ?>
                    <?php if ($error_customer_number) { ?>
                  <div class="text-danger"><?php echo $error_customer_number; ?></div>
                  <?php  } ?>
                </div>
              </div>