cakephp用foreach()保存数据数组

Question

我正在尝试保存来自多个同名输入的大小数据.

问题是我无法保存数据.只有最后一个值"sizes"在数据库中保存.

if ($this->EquipmentType->save($this->request->data['EquipmentType'], false)) {
    $id = $this->EquipmentType->getLastInsertId();
    $this->loadModel('EquipmentTypesSize');
    $sizesArray = $this->request->data['EquipmentType']['size'];
    foreach($sizesArray as $val){
        $data[] = array('EquipmentTypesSize' => array('sizes' =>  $val));
    }
    $this->request->data['EquipmentTypesSize']['equipment_type_id'] = $id;
    $this->EquipmentTypesSize->set($this->request->data);
    $this->EquipmentTypesSize->save($this->request->data['EquipmentTypesSize']);
    $this->Session->setFlash('Equipment type has been added successfully ', 'default', 'success');
    $this->redirect(array('controller' => 'equipments', 'action' => 'listequipmenttypes', 'admin' => true));
}

我想把它保存为

equipment_type_id | size1
equipment_type_id | size2
equipment_type_id | size3

Answer 1

有几个问题 - create凯提到的这个问题就是其中之一.

首先,这是你的代码,但我在我看到明显问题的地方添加了评论(我很多都没有抓到所有这些)

<?php 
if ($this->EquipmentType->save($this->request->data['EquipmentType'], false)) {
    $id = $this->EquipmentType->getLastInsertId();
    $this->loadModel('EquipmentTypesSize');
    $sizesArray = $this->request->data['EquipmentType']['size'];
    foreach($sizesArray as $val){
        $data[] = array('EquipmentTypesSize' => array('sizes' =>  $val));
        // WHERE IS THIS $data VARIABLE USED? It seems it's never used?
    }
    $this->request->data['EquipmentTypesSize']['equipment_type_id'] = $id;
    $this->EquipmentTypesSize->set($this->request->data); // NO NEED TO CALL SET HERE - YOU ALREADY PASS DATA IN AS A PARAM TO SAVE
    // YOU MUST CALL CREATE BEFORE ADDING A NEW RECORD
    $this->EquipmentTypesSize->save($this->request->data['EquipmentTypesSize']);
    // I DON'T THINK $this->request->data['EquipmentTypesSize'] HOLDS THE VALUE YOU THINK IT DOES AT THIS POINT
    $this->Session->setFlash('Equipment type has been added successfully ', 'default', 'success');
    $this->redirect(array('controller' => 'equipments', 'action' => 'listequipmenttypes', 'admin' => true));
}

现在,很难确切地说出你想要做什么,但这是我试图写出你想要的东西.如果它不起作用,它应该有希望让你走上正确的轨道.

if ($this->EquipmentType->save($this->request->data['EquipmentType'], false)) {
    $id = $this->EquipmentType->getLastInsertId();
    $this->loadModel('EquipmentTypesSize');
    $sizesArray = $this->request->data['EquipmentType']['size'];
    foreach($sizesArray as $val){
        $this->EquipmentTypesSize->create();
        $this->EquipmentTypesSize->save(array(
            'sizes' =>  $val,
            'equipment_type_id' => $id,
        ));
    }
    $this->Session->setFlash('Equipment type has been added successfully ', 'default', 'success');
    $this->redirect(array('controller' => 'equipments', 'action' => 'listequipmenttypes', 'admin' => true));
}

最后,有两件事:

1. 实际上,您应该尽可能多地将这些逻辑推送到您的EquipmentType模型中.因此,您可以saveWithSizes在EquipmentType模型中创建一个包含大部分代码的方法.

2. 您应该查看Cake的saveAll方法(http://book.cakephp.org/2.0/en/models/saving-your-data.html#model-saveall-array-data-null-array-options-array).理想情况下,您需要设置表单数据,以便您可以调用saveAll并让Cake自动处理它.尽管如此,这可能是也可能不是.