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POSelect all products (table1) under parent_id (table2 = categories)
 

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  1. POSelect all products (table1) under parent_id (table2 = categories)
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    <p>How do I SELECT them from the database to show all products (table1) under parent_id from the categories (table2)?</p> <p>For example, I want to show/list all the products under parent_id = 1 (Kid's Clothing) including all products under sub-categories per page using a link like cat.php?id=1</p> <p>Parent Category ID #1</p> <ul> <li>Product#1 > category_id #5</li> <li>Product#2 > category_id #10</li> <li>Product#3 >> category_id #16</li> <li>Product#4 >> category_id #20</li> </ul> <p>Parent Category ID #2</p> <ul> <li>Product#5 > category_id #31</li> <li>Product#6 > category_id #33</li> </ul> <p>Parent Category ID #3</p> <ul> <li>Product#7 > category_id #27</li> <li>Product#8 > category_id #29</li> </ul> <p>Here's what I have so far, but it's still not showing all the products in the parent category <a href="http://sqlfiddle.com/#!2/40e8ed/15" rel="nofollow">sqlfiddle</a></p> <pre><code>SELECT * FROM products LEFT JOIN categories ON products.category = categories.category_id GROUP BY (SELECT parent_id FROM categories WHERE parent_id = 1 GROUP BY parent_id) </code></pre> <p>DB: categories</p> <pre><code>CREATE TABLE IF NOT EXISTS `categories` ( `category_id` int(10) NOT NULL AUTO_INCREMENT, `parent_id` int(10) DEFAULT NULL, `title` varchar(255) NOT NULL, PRIMARY KEY (`category_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; </code></pre> <p>DB: products</p> <pre><code>CREATE TABLE IF NOT EXISTS `products` ( `id` int(10) NOT NULL AUTO_INCREMENT, `product` varchar(255) DEFAULT NULL, `description` longtext DEFAULT NULL, `category` int(10) DEFAULT NULL, `color` varchar(255) DEFAULT NULL, `sizes` varchar(255) DEFAULT NULL, `style` varchar(255) DEFAULT NULL, `material` varchar(255) DEFAULT NULL, `stock` varchar(255) DEFAULT NULL, `ws_price` decimal(6,2) DEFAULT NULL, `rt_price` decimal(6,2) DEFAULT NULL, `sp_code` varchar(255) DEFAULT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; </code></pre> <p>Structure for CATEGORIES</p> <ul> <li>Kid's Clothing</li> <li>--Big Boys &amp; Girls Apparel </li> <li>-------Tops &amp; Tees</li> <li>-------Skirt &amp; Pants</li> <li>--Baby Boys &amp; Girls</li> <li>-------Rompers/Onesies</li> <li>-------Baby Accessories</li> <li>-------Baby Care &amp; Toys</li> <li>--Clothing Set --------Unisex</li> </ul> <p>Code for viewing the products (example):</p> <pre><code>$getid = $_GET['id']; $q = mysqli_query($con," SELECT products.*, categories.* FROM products, categories WHERE products.category = categories.category_id GROUP BY categories.parent_id= $getid "); while($row = mysqli_fetch_array($q, MYSQLI_ASSOC)){ $id = $row['id']; $product = $row['product']; $cat = $row['category']; $c = mysqli_query($con,"SELECT title FROM categories WHERE category_id = $cat"); while($r = mysqli_fetch_array($c)){ $pcat= $r['title']; } echo '&lt;p&gt;ID#'.$id.'-'.$product.' (Category#'.$cat.'-'.$pcat.')&lt;/p&gt;'; } mysqli_close($con); </code></pre>
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