What is Node.js
It is a JavaScript runtime built on google Chrome’s V8 JavaScript Engine.
Basically it makes Javascript a server side language, Without Node Javascript is a client (Browser) side language only.
What can you do with it?
Backend Apps, Chat, CMS and a many more
What is NPM?
Its Node Package Manager
Used for installing Node Programs and Modules
Sometimes we need to add sub sub categories in opencart header with the product images. One of my client wanted a similar layout, I did it with the following code.
Add the following code to header controller.
$categories_1 = $this->model_catalog_category->getCategories(0);
foreach ($categories_1 as $category_1) {
$level_2_data = array();
$categories_2 = $this->model_catalog_category->getCategories($category_1['category_id']);
foreach ($categories_2 as $category_2) {
/*Incase level 3 not available*/
$level_5_data = array();
$categories_5 = $this->model_catalog_product->getProducts($data = array('filter_category_id' => $category_2['category_id']));
foreach ($categories_5 as $category_5 ) {
$level_5_data [] = array(
'name' => $category_5['name'],
'image' => $server . 'image/' . $category_5['image'],
'href' => $this->url->link('product/product', 'product_id=' . $category_5['product_id']),
);
}
/*Incase level 3 not available*/
$level_3_data = array();
$categories_3 = $this->model_catalog_category->getCategories($category_2['category_id']);
foreach ($categories_3 as $category_3) {
// Custum code for for products by Diwakar Mishra (Appealsoft)
$level_4_data = array();
$categories_4 = $this->model_catalog_product->getProducts($data = array('filter_category_id' => $category_3['category_id']));
foreach ($categories_4 as $category_4 ) {
$level_4_data [] = array(
'name' => $category_4['name'],
'image' => $server . 'image/' . $category_4['image'],
'href' => $this->url->link('product/product', 'product_id=' . $category_4['product_id']),
);
}
// Custum code for for products by Diwakar Mishra (Appealsoft)
$level_3_data[] = array(
'name' => $category_3['name'],
'children' => $level_4_data,
'column' => $category_3['column'] ? $category_3['column'] : 1,
'href' => $this->url->link('product/category', 'path=' . $category_1['category_id'] . '_' . $category_2['category_id'] . '_' . $category_3['category_id'])
);
}
$level_2_data[] = array(
'name' => $category_2['name'],
'children' => $level_3_data,
'children_else' => $level_5_data,
'href' => $this->url->link('product/category', 'path=' . $category_1['category_id'] . '_' . $category_2['category_id'])
);
}
$this->data['categories'][] = array(
'name' => $category_1['name'],
'children' => $level_2_data,
'column' => $category_1['column'] ? $category_1['column'] : 1,
'href' => $this->url->link('product/category', 'path=' . $category_1['category_id'])
);
}
you will need to change the header.tpl file and create a loop of the above arrays to get the final result.