How to show out of stock button in opencart - opencart

Question

I have added a product in opencart with 0 quantity but when I see it in front end then I want to show out of stock text and the add to cart button should also be disabled

Answer 1

Note : It's not recommended to make the direct changes in the core
files. You can make the vqmod for the same changes. changes given here
are tested in the default template, it might be different in other
custom theme.
Before
After
(1) Open catalog/controller/product/product.php (approx line num : 273) and search for the line:
if ($product_info['quantity'] <= 0) {
and make the changes as below:
$data['stock_qty']=1;
if ($product_info['quantity'] <= 0) {
$data['stock'] = $product_info['stock_status'];
$data['stock_qty']=0;
} elseif ($this->config->get('config_stock_display')) {
$data['stock'] = $product_info['quantity'];
} else {
$data['stock'] = $this->language->get('text_instock');
}
(2) Open catalog/view/theme/default/template/product/product.tpl (approx line num 303 to 309)
and wrap the block of "add to cart button" inside the condition.
<?php if($stock_qty!=0) { ?>
<div class="form-group">
<label class="control-label" for="input-quantity"><?php echo $entry_qty; ?></label>
<input type="text" name="quantity" value="<?php echo $minimum; ?>" size="2" id="input-quantity" class="form-control" />
<input type="hidden" name="product_id" value="<?php echo $product_id; ?>" />
<br />
<button type="button" id="button-cart" data-loading-text="<?php echo $text_loading; ?>" class="btn btn-primary btn-lg btn-block"><?php echo $button_cart; ?></button>
</div>
<?php } ?>

Answer 2

In the administrative dashboard;
Hover over the menu bar where it says SYSTEM and then click on
SETTINGS in the drop-down menu.
Select the STORE that you wish to edit and then click on EDIT on the
far right to proceed.
Click on the TAB that says OPTION, then scroll down until you see the
option labeled SHOW OUT-OF-STOCK WARNING.