Opencart minimum order price exclude one category

问题

I am using opencart and successfully added minimum order price for all transactions. This is the code I used:

<?php if ($this->cart->getSubtotal() >= 10) { ?>
<div id="payment"><?php echo $payment; ?></div>
<?php } else { ?>
<div class="warning">Minimum 10 Euro to checkout</div>
<?php }  ?>

Now I want to exclude one category out of it so that $9 product from that category can be bought.

Update 1: Thank you so much for the help shadyyx

I tried shadyyx method but I am getting this error: unexpected T_BOOLEAN_OR in this line

<?php if ($this->cart->getSubtotal() >= 10 || $this->cart->productsAreInCategory(1)) { ?>

Update 2: I tried this but it gave a pop up saying just error and ok button <?php if (($this->cart->getSubtotal() >= 10) || $this->cart->productsAreInCategory(1)) { ?>

I tried this <?php if (($this->cart->getSubtotal() >= 10) || ($this->cart->productsAreInCategory(1))) { ?> it did not give any error and does same work (min amount for all orders regardless of category id)

回答1:

I would go this way:

Extend the system/library/cart.php and add a method:

public function productsAreInCategory($category_id) {
    $product_ids = array();
    foreach($this->getProducts() as $product) {
        $product_ids[] = $product['product_id'];
    }

    $categories = $this->db->query('SELECT category_id FROM ' . DB_PREFIX . 'product_to_category WHERE product_id IN (' . implode(',', $product_ids) . ')')->rows;

    $category_ids = array();
    foreach($categories as $category) {
        $category_ids[] = $category['category_id'];
    }

    if(in_array($category_id, $category_ids) {
        return true;
    }

    return false;
}

This method should accept a $category_id parameter to test against and should load categories for all products in cart. After first match a true is returned, if no match, a false is returned. You can now use this method this way:

<?php if (($this->cart->getSubtotal() >= 10) || $this->cart->productsAreInCategory(1)) { ?>
<div id="payment"><?php echo $payment; ?></div>
<?php } else { ?>
<div class="warning">Minimum 10 Euro to checkout</div>
<?php }  ?>

Just replace the category ID in $this->cart->productsAreInCategory(1) with the correct one.

来源：https://stackoverflow.com/questions/20042912/opencart-minimum-order-price-exclude-one-category

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opencart