Question

我有三列。两列的产品使用codeigniter验证规则进入第三列名称income_amount。第一列是crop_quantity，第二列是per_rate

控制器

$this->form_validation->set_rules('crop_quantity', 'Crop Quantity', 'required|numeric');
$this->form_validation->set_rules('per_rate', 'Per Rate', 'required|numeric|callback_get_product');
$this->form_validation->set_rules('income_amount', 'Income Amount', 'required|numeric');
$this->form_validation->set_rules('select_client', 'Client Name', 'required');

function get_product($crop_quantity,$per_rate)
{
    $q = $crop_quantity;
    $p = $per_rate;
    if(q!='' && p!='')
    {
        $total = $p * $q;
        $income_amount=$total;
    }
}

查看

<div class="control-group">
    <label class="control-label">Crop Quantity</label>
    <div class="controls">
        <input type="text" class="span6 m-wrap" value="<?echo $name->crop_quantity?>" name="crop_quantity" >
        <?php echo form_error('crop_quantity'); ?>
    </div>
</div>

Answer 1

将以下代码添加到Controller Post：

$this->form_validation->set_rules('crop_quantity', 'Crop Quantity', 'required|numeric');
$this->form_validation->set_rules('per_rate', 'Per Rate', 'required|numeric|callback_get_product');
$this->form_validation->set_rules('income_amount', 'Income Amount', 'required|numeric|callback_validate_amount');
$this->form_validation->set_rules('select_client', 'Client Name', 'required');

在同一控制器中添加名为'validate_amount'的新函数（提示：callback_validate_amount）

function validate_amount() {
    $q = $this->input->post('crop_quantity');
    $p = $this->input->post('per_rate');
    $income_amount = $this->input->post('income_amount');

    $total = $p * $q;
    if ($income_amount == $total) {
        return TRUE;
    } else {
        $this->form_validation->set_message('validate_amount', 'The %s field must contain the product of  crop_quantity and per_rate');
        return FALSE;
    }
}

Answer 2

您需要对控制器执行任何操作。将此更改添加到

<script>
function calculate() {
    var myBox1 = document.getElementById('crop_quantity').value;    
    var myBox2 = document.getElementById('per_rate').value;
    var result = document.getElementById('income_amount');  
    var myResult = myBox1 * myBox2;
    result.value = myResult;


}
window.onload = calculate();
</script>


  <div class="control-group">
                        <label class="control-label">Crop Quantity</label>
                        <div class="controls">
       <input type="text" id="crop_quantity" oninput="calculate()" class="span6 m-wrap" value="<?echo $name->crop_quantity?>" name="crop_quantity" >
                        <?php echo form_error('crop_quantity'); ?>        

                        </div>
                        </div>

                       <div class="control-group">
                        <label class="control-label">Per Rate</label>
                        <div class="controls">
  <input type="text" id="per_rate" class="span6 m-wrap" value="<?echo $name->per_rate ?>" name="per_rate" oninput="calculate()">
                        <?php echo form_error('per_rate'); ?>        

                        </div>
                        </div>

                        <div class="control-group">
                        <label class="control-label">Income Amount</label>
                        <div class="controls">
  <input type="text" id="income_amount" class="span6 m-wrap" value="<?echo $name->income_amount?>" name="income_amount" >
                        <?php echo form_error('income_amount'); ?>        

                        </div>
                        </div>

注意：我在每个输入字段中添加了属性id。您还可以在输出框中添加禁用字段 注2：我也在输入字段中使用了oninput="calculate()"。示例

＆＃13;

function calculate() {
		var myBox1 = document.getElementById('crop_quantity').value;	
		var myBox2 = document.getElementById('per_rate').value;
		var result = document.getElementById('income_amount');	
		var myResult = myBox1 * myBox2;
		result.value = myResult;
      
		
	}

window.onload = calculate();

＆＃13;

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
  
<table width="80%" border="0">
  <tr>
    <th>crop_quantity</th>
    <th>per_rate</th>
    <th>income_amount</th>
  </tr>
  <tr>
    <td><input id="crop_quantity" name="crop_quantity" type="text" oninput="calculate()" value="13" /></td>
    <td><input id="per_rate" name="per_rate" value="10" type="text" oninput="calculate()" /></td>
    <td><input id="income_amount" name="income_amount" disabled/></td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
</table>
  
</body>
</html>

＆＃13;

修改更新javascript

Answer 3

uzumaki ichigo解决方案看起来工作只是想添加一些点

1.请检查<?(shorthand tags) are enabled or not else use <?php instead of ?>

2.更多的事情是<? and echo

之间应该有空格

如何使用codeigniter验证规则将两个列名称相乘

3 个答案: