如何在symfony 1.4中显示空记录错误信息 - How to display a empty record error message in symfony 1.4

How to display a empty record error message in symfony 1.4

我使用foreach循环来显示表记录。下面是我的代码indexSuccess.php模板

<?php $counter = 0; ?>                    
<?php foreach ($prescription->getPrescriptionDrugs() as $prescriptionDrug): ?>
<?php $counter++; ?>
<tr>
<th class="start"><?php echo $prescriptionDrug->getDrug()->getDrugName() ?></th>
<td><?php echo $prescriptionDrug->getAmountPerTime() ?></td>
<td><?php echo $prescriptionDrug->getTimesPerDay() ?></td>                                   
<td><?php echo $prescriptionDrug->getCreater() ?> (<?php echo $prescriptionDrug->getCreatedAt() ?>)</td>
</tr>                         
<?php endforeach; ?>  
<?php if($counter==0): ?>
<tr>
<td colspan="5">No items found</td>
</tr> 
<?php endif; ?>

我似乎找不到回音的方法

<td colspan="5">No items found</td>

当表没有显示任何记录时。

如果我使用

<?php echo var_dump ($counter); ?>

显示

下面的结果

int 1
int 2
int 1
int 2
int 1
int 2
int 1
int 2
int 1
int 2

<?php if($prescription->getPrescriptionDrugs()->count() == 0): ?>  
    <tr>
        <td colspan="5">No items found</td>
    </tr> 
<?php else: ?>       
    <?php foreach ($prescription->getPrescriptionDrugs() as $prescriptionDrug): ?>
        <tr>
            <th class="start"><?php echo $prescriptionDrug->getDrug()->getDrugName() ?></th>
            <td><?php echo $prescriptionDrug->getAmountPerTime() ?></td>
            <td><?php echo $prescriptionDrug->getTimesPerDay() ?></td>                                   
            <td><?php echo $prescriptionDrug->getCreater() ?> (<?php echo $prescriptionDrug->getCreatedAt() ?>)</td>
        </tr>                         
    <?php endforeach; ?>
<?php endif; ?>

您可以使用count()函数返回行数。

<?php $rows = count($prescription->getPrescriptionDrugs()); ?>   
<?php if($rows==0){ ?>  
    <tr>
        <td colspan="5">No items found</td>
    </tr> 
<?php } else { ?>       
    <?php foreach ($prescription->getPrescriptionDrugs() as $prescriptionDrug): ?>
        <tr>
            <th class="start"><?php echo $prescriptionDrug->getDrug()->getDrugName() ?></th>
            <td><?php echo $prescriptionDrug->getAmountPerTime() ?></td>
            <td><?php echo $prescriptionDrug->getTimesPerDay() ?></td>                                   
            <td><?php echo $prescriptionDrug->getCreater() ?> (<?php echo $prescriptionDrug->getCreatedAt() ?>)</td>
        </tr>                         
    <?php endforeach; ?>
<?php } ?>