Question

i’m creating a small shopping cart and i’m saving my products in a session (no database). My session sets the product id. But how can get the correct product from my database that matches the product id in my stored session?

Code:

foreach ( (isset($shopcart) && is_array($shopcart) && count($shopcart) > 0) ? $shopcart : array() as $item )
{  
    $this->template->shopcart =  $shopcart;
}

.

<?php if( isset( $shopcart ) ): ?>
            <?php foreach ($shopcart as $item): ?>
             <?php echo $item['id'] ?>
  <?php endforeach ?>
<?php endif; ?>

EDIT:

 foreach ( (isset($shopcart) && is_array($shopcart) && count($shopcart) > 0) ? $shopcart : array() as $item )
    {  
        $this->template->shopcart  = DB::select()->where('id', 'IN', $item['id']) ->from('products')->execute();

        //$this->template->shopcart =  $shopcart;
    }

Database_Exception [ 1064 ]: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ”5” at line 1 [ SELECT * FROM products WHERE id IN ‘5’ ]

EDIT 2:

$this->template->shopcart = array();

if (count($shopcart))
{
  $this->template->shopcart = 
    DB::select()
    ->where('id', 'IN', $item)
    ->from('products')
    ->execute();
}

Template:

<?php if( isset( $shopcart ) ): ?>
  <?php foreach ($shopcart as $item): ?>
<?php echo $item['id'] ?> //This is the product id in my saved session but i need to get the name from the database


 <?php endforeach ?>
 <?php endif; ?>

Answer 1

Are you using ORM or the query builder? If you are using the ORM, you could do:

$this->template->shopcart = 
    ORM::factory('products')
    ->where('id', 'IN', $_SESSION['cart'])
    ->find_all();

if you are using the query builder:

$this->template->shopcart = 
     DB::select()
     ->where('id', 'IN', $_SESSION['cart'])
     ->from('products')
     ->execute();

In your view, now iterate of your $shopcart as you would.

Using your case, (take it out of your loop)

$this->template->shopcart = array();

if (count($shopcart))
{
  $product_ids = array();
  foreach ($shopcart as $item)
  {
     $product_ids[] = $item['id'];
  }
  $this->template->shopcart = 
    DB::select()
    ->where('id', 'IN', $product_ids)
    ->from('products')
    ->execute();
}