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Separate controller and view from multiples queries?

开发者 https://www.devze.com 2023-02-22 14:00 出处:网络
I have multiple MySQL queries and I need to separate them into Controller and View (CodeIgniter framework), how is that possible? See example of codes below:

I have multiple MySQL queries and I need to separate them into Controller and View (CodeIgniter framework), how is that possible? See example of codes below:

For example:

$SQL_Cat = mysql_query("SELECT * FROM categories WHERE restaurant_id = '$restaurantID'");

while ($category = mysql_fetch_array($SQL_Cat))
{

    $CategoryID = $category['id'];

    echo $category['name'];
    if ($category['description'] != "") { 
        echo $category['description'];
    }

    $q = mysql_query("SELECT * FROM items WHERE category_id = '" . $CategoryID . "'");
    while($item = mysql_fetch_array($q))
    {          
        $item_name = $item['name'];
        echo $item_name;
        $item_des = $item['description'];
        $sq = mysql_query("SELECT * FROM item_options WHERE item_id = '" . $item['id'] . "'");
        $item_id = $item['id'];
        if(mysql_num_rows($sq) > 0)
        {
            while($item_开发者_C百科option = mysql_fetch_array($sq))
            {
               echo "---------<br />";
               $item_option_name = $item_option['option_value'];
               $item_option_price = $item_option['price'];
               $item_option_id = $item_option['id'];

               echo $item_name;
               echo $item_des;
               echo $item_option_name;
           }
       }
   }
}

The echo's part should be in view (MVC).


Well... The simplest way is this

controller.php

$id = $_GET[ 'id' ] ;
include_once 'model.php' ;
$content = getPage( $id ) ;
include 'view.php' ;

model.php

function getPage( $id ) {
    $result = mysql_query( 'SELECT content FROM pages WHERE id = ' . intval( $id ) ) ;
    $c = mysql_fetch_assoc( $result ) ;
    return $c[ 'content' ] ;
}

view.php

<?= $content; ?>

Just type http://site/controller.php?id=1 in your browser (there should be en entry in you db of course)

A bit simplified but no fun in writing code scrolls :)


Check out the user guide. It really helped me understand MVC.

  1. Model
  2. View
  3. Controller

Once you have a good understanding of using this pattern, decomposing what you have shouldn't be too hard.

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