[SOLVED] Products in Pulldown Menu

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// Menu
		$this->load->model('catalog/category');

		$this->load->model('catalog/product');

		$data['categories'] = array();

		$categories = $this->model_catalog_category->getCategories(0);

		foreach ($categories as $category) {
			if ($category['top']) {
				// Level 2
				$children_data = array();

				$children = $this->model_catalog_category->getCategories($category['category_id']);

				foreach ($children as $child) {
					$filter_data = array(
						'filter_category_id'  => $child['category_id'],
						'filter_sub_category' => true
					);

					$children_data[] = array(
						'name'  => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
						'href'  => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id'])
					);
				}

				// Level 1
				$data['categories'][] = array(
					'name'     => $category['name'],
					'children' => $children_data,
					'column'   => $category['column'] ? $category['column'] : 1,
					'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
				);
			}
		}
		

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$this->load->model('catalog/product');

$filter_data = [
    'filter_category_id' => 123
];
 
$products = $this->model_catalog_product->getProducts($filter_data);

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// ...
$products = $this->model_catalog_product->getProducts($filter_data);

$data['dropdown_products'] = []; // you need to declare this so that your frontend can access the variable you've created

foreach ($products as $product) {
  $data['dropdown_products'][] = [
      'product_id' => $product['product_id'],
      'name'       => $product['name'],
      // ...
      // ...
  ];
}
// ...

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{% for product in dropdown_products %}
<div>
  <p>{{ product.name }}</p>
</div>
{% endfor %}

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// ...
$categories = $this->model_catalog_category->getCategories(0);

// make sure you load the model to prevent any errors
$this->load->model('catalog/product');

foreach ($categories as $category) {
  if ($category['top']) {
    // Level 2 - which is where you want to insert your products instead of the sub-categories
    $children_data = array();

    $filter_data = [
      'filter_category_id' => $category['category_id']
    ];

    $products = $this->model_catalog_product->getProducts($filter_data);

    foreach ($products as $product) {
      $children_data[] = [
        'name' => $product['name'],
        'href' => $this->url->link('product/product', 'product_id=' . $product['product_id'])
      ];
    }

    // Level 1
    $data['categories'][] = array(
      'name'     => $category['name'],
      'children' => $children_data,
      'column'   => $category['column'] ? $category['column'] : 1,
      'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
    );
  }
}
// ...