如何使用phalcon createbuilder連接多個表格

Question

這裏是使用PHQL來顯示來自3個不同表格的行的工作代碼。我想使用$this->modelsManager->createBuilder()來編碼。請在下面找到工作代碼和錯誤。

控制器

<?php 
    $phql = 'SELECT product.*, currency.*, unittype.* FROM product LEFT JOIN currency ON product.CurrencyId=currency.Id LEFT JOIN unittype ON product.UnitTypeId=unittype.Id ORDER BY product.Name ASC'; 
    $query = $this->modelsManager->createQuery($phql); 
    $this->view->products = $query->execute(); 
?> 

查看

<table class="table"> 
    <tr> 
     <th>Name</th> 
     <th>Description</th> 
     <th>Unit Type</th> 
     <th>Price</th> 
     <th>Currency</th> 
     <th></th> 
     <th></th> 
    </tr> 
    <?php foreach($products as $row) { ?> 
    <tr> 
     <td><?php echo $row->product->Name; ?></td> 
     <td><?php echo $row->product->Description; ?></td> 
     <td><?php echo $row->unittype->Name; ?></td> 
     <td><?php echo $row->product->Price; ?></td> 
     <td><?php echo $row->currency->Code; ?></td> 
     <td><?php echo $this->tag->linkTo('product/edit/'.$row->product->Id,'Edit'); ?></td> 
     <td><?php echo $this->tag->linkTo('product/delete/'.$row->product->Id,'Delete'); ?></td> 
    </tr> 
    <?php } ?> 
</table> 

I wanted to use createbuilder from modelmanager; how to writequery and print in view?

below is the code i wrote and having issue:

控制器

<?php 
    $this->view->products = $this->modelsManager->createBuilder() 
     ->from('product') 
     ->innerjoin('currency','product.CurrencyId=currency.Id') 
     ->orderBy('product.Name') 
     ->getQuery() 
     ->execute(); 
?> 

查看

<table class="table"> 
    <tr> 
     <th>Name</th> 
     <th>Description</th> 
     <th>Unit Type</th> 
     <th>Price</th> 
     <th>Currency</th> 
     <th></th> 
     <th></th> 
    </tr> 
    <?php foreach($products as $product) { ?> 
    <tr> 
     <td><?php echo $product->Name; ?></td> 
     <td><?php echo $product->Description; ?></td> 
     <td><?php echo $product->UnitTypeId; ?></td> 
     <td><?php echo $product->Price; ?></td> 
     <td><?php echo $product->currency->Id; ?></td> 
     <td><?php echo $this->tag->linkTo('product/edit/'.$product->Id,'Edit'); ?></td> 
     <td><?php echo $this->tag->linkTo('product/delete/'.$product->Id,'Delete'); ?></td> 
    </tr> 
    <?php } ?> 
</table> 

上面的代碼產生以下錯誤：

Notice: Trying to get property of non-object in C:\wamp\www\xxxx.volt.php on line xx

Answer 1

在你的控制器試試這個。由此產生的數據應該是一個Resultset

$builder = $this->modelsManager->createBuilder(); 

$builder 
    ->columns(
     [ 
      'Product.Id'   => 'productId', 
      'Product.Name'  => 'productName', 
      'Product.Description' => 'productDescription', 
      'Unittype.Name'  => 'unitTypeName', 
      'Product.Price'  => 'productPrice', 
      'Currency.Code'  => 'Currency.Code', 
     ] 
    ) 
    ->addFrom('Product') 
    ->leftJoin('Currency', 'Product.CurrencyId = Currency.Id') 
    ->leftJoin('Unittype', 'Product.UnitTypeId = Unittype.Id') 
    ->orderBy('Product.Name') 
    ->getQuery(); 

$data = $builder->execute(); 

var_dump($data); 

這將返回只有你在你看來有場。