CakePHP3合并添加和编辑操作

时间:2019-06-18 11:58:03

标签: php cakephp cakephp-3.0

herd添加到系统后,用户将被重定向到herdimports控制器,可以在其中输入导入数据。

我想在一个动作和视图中添加和编辑表单。

在控制器中有效:

public function edit($herd_id = null)
{
    if($herd_id == null) 
    {
        // log error
        $this->Flash->success(__('No herd was selected.'));
        return $this->redirect(['action' => 'index']);
    }
    $herdimport = $this->Herdimports->find('all')->where(['herd_id'=>$herd_id]);
    if($herdimport->count() == 0)
    {
        $herdimport = $this->Herdimports->newEntity();
    }

    if ($this->request->is(['patch', 'post', 'put'])) {
        $herdimport = $this->Herdimports->patchEntities($herdimport, $this->request->getData());
        $this->Herdimports->deleteAll(['herd_id'=>$herd_id]);
        if ($this->Herdimports->saveMany($herdimport)) {
            $this->Flash->success(__('The herdimport has been saved.'));
            return $this->redirect(['action' => 'index']);
        }
        $this->Flash->error(__('The herdimport could not be saved. Please, try again.'));
    }
    $this->set('herd_id', $herd_id);
    $this->set(compact('herdimport'));
}

在视图中,我有以下代码:

<?= $this->Form->create($herdimport) ?> 
<fieldset>
    <legend><?= __('Edit Herdimport') ?></legend>
    <? $i = 0; ?>
    <? foreach ($herdimport as $h) : ?>
    <div class="repeat"> 
        <?= $this->Form->hidden($i.'.herd_id'); ?> 
        <?= $this->Form->control($i.'.num',['data-default'=>""]); ?> 
        <?= $this->Form->control($i.'.date',['data-default'=>""]); ?> 
        <?= $this->Form->control($i.'.origin',['data-default'=>""]);?> 
        <?= $this->Form->control($i.'.weight',['data-default'=>""]); ?> 
        <?= $this->Form->control($i.'.price',['data-default'=>""]); ?> 
    </div>
    <? $i ++; ?>
    <? endforeach; ?>

    <button class="extra-row"><?=__('Extra row');?></button>
    <button class="delete-row" style="display: none;"><?=__('Delete row');?></button>

</fieldset>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>

当我有该畜群的条目时,哪个效果最佳。但是,如果现在还有条目(加号),则foreach将被忽略。

如何检查视图中是否有行。我尝试过$herdimport->count(),但是在没有行的情况下会报错。
还尝试了$herdimport->isNew(),当有行时会出错。

有什么想法吗?

1 个答案:

答案 0 :(得分:1)

您可能不应该这样做:

$herdimport = $this->Herdimports->newEntity();

如果要添加/编辑多个项目,则$herdimport应该始终是查询或实体列表,而不是单个实体。

如果潜在的目标/问题是在没有记录的情况下具有一组初始输入,那么您可以执行以下操作:

$entity = $this->Herdimports->newEntity();
$entity->herd_id = $herd_id;

$herdimport = [$entity];

ie只需将初始实体包装在数组中(并确保填充外键字段)。

相关问题