Quantity in Opencart

Question 1

It's simple.

First set "display stock" to Yes

admin panel>system>setting>options set display stock to "YES"

now

//catalog>controller>product>product.php

Find (around line 282)

if ($product_info['quantity'] <= 0) {
 $this->data['stock'] = $product_info['stock_status'];
} elseif ($this->config->get('config_stock_display')) {
 $this->data['stock'] = $product_info['quantity'];
} else {
 $this->data['stock'] = $this->language->get('text_instock');
}

Replace With

if ($product_info['quantity'] <= 0) {
 $this->data['stock'] = $product_info['stock_status'];
} elseif ($this->config->get('config_stock_display') && $product_info['quantity'] <= 5) {
 $this->data['stock'] = $product_info['quantity'];
} else {
 $this->data['stock'] = $this->language->get('text_instock');
}

Hope this helps

Question 2

Edit the file catalog/controller/product/category.php

Step : 1

Find the code:

if ($this->config->get('config_review_status')) {
    $rating = (int)$result['rating'];
} else {
    $rating = false;
}

Add the following just below the above code :

if ($result['quantity'] <= 0) {
    $rstock = $result['stock_status'];
} elseif ($this->config->get('config_stock_display')) {
    $rstock = "Stoc: " . $result['quantity'];
} else {
    $rstock = "In stoc";
}

Step : 2

Find :

'thumb' => $image,

Add the following just after the above line

'stoc' => $rstock,

Step 3

Edit the file catalog/view/theme/yourtheme/template/product/category.tpl

Find :

<div class="cart">

Add the following :

<?php echo $product['stoc']; ?>

And now the stock will appear for products in category page.

You can do the same for search (the files would be search.php and search.tpl - in the same folders as the category)

You can see a more detailed tutorial at :

All of the above uses the same idea, but implemented in different ways. But this should help you solve your problem.

Hope this helps.