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<?php
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namespace artweb\artbox\ecommerce;
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use artweb\artbox\ecommerce\models\Category;
use artweb\artbox\ecommerce\models\Product;
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use artweb\artbox\ecommerce\models\ProductVariant;
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use yii\web\HttpException;
use yii\web\UrlRuleInterface;
class CatalogUrlManager implements UrlRuleInterface
{
public $route_map = [];
/**
* Parses the given request and returns the corresponding route and parameters.
*
* @param \yii\web\UrlManager $manager the URL manager
* @param \yii\web\Request $request the request component
*
* @throws HttpException
* @return array|boolean the parsing result. The route and the parameters are returned as an array.
* If false, it means this rule cannot be used to parse this path info.
*/
public function parseRequest($manager, $request)
{
$pathInfo = $request->getPathInfo();
$paths = explode('/', $pathInfo);
if (!array_key_exists($paths[ 0 ], $this->route_map)) {
return false;
}
$params = [];
if ($paths[ 0 ] == 'catalog') {
$route = 'catalog/category';
// Category
if (!empty( $paths[ 1 ] )) {
$category = Category::find()
->joinWith('lang')
->where(
[
'category_lang.alias' => $paths[ 1 ],
]
)
->one();
if (empty( $category )) {
\Yii::$app->response->redirect('/');
}
$params[ 'category' ] = $category;
}
if (!empty( $paths[ 2 ] )) {
// Filter
if (strpos($paths[ 2 ], 'filters:') === 0) {
if (!isset( $paths[ 3 ] )) {
$this->parseFilter($paths[ 2 ], $params);
} else {
throw new HttpException(404, 'Page not found');
}
} else {
throw new HttpException(404, 'Page not found');
}
}
} elseif ($paths[ 0 ] == 'product') {
if (!empty( $paths[ 3 ] )) {
throw new HttpException(404, 'Page not found');
}
$product = Product::find()
->joinWith('lang')
->where([ 'product_lang.alias' => $paths[ 1 ] ])
->one();
$variant = ProductVariant::find()
->joinWith('lang')
->where([ 'sku' => $paths[ 2 ] ])
->one();
if (empty( $variant->id ) || empty( $product->id )) {
throw new HttpException(404, 'Page not found');
}
$route = 'catalog/product';
$params = [
'product' => $product,
'variant' => $variant,
];
}
return [
$route,
$params,
];
}
/**
* Creates a URL according to the given route and parameters.
*
* @param \yii\web\UrlManager $manager the URL manager
* @param string $route the route. It should not have slashes at the beginning or the end.
* @param array $params the parameters
*
* @return string|boolean the created URL, or false if this rule cannot be used for creating this URL.
*/
public function createUrl($manager, $route, $params)
{
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if (!in_array($route, $this->route_map)) {
return false;
}
switch ($route) {
case 'catalog/category':
if (!empty( $params[ 'category' ] )) {
$category_alias = is_object(
$params[ 'category' ]
) ? $params[ 'category' ]->lang->alias : strtolower(
$params[ 'category' ]
);
$url = 'catalog/' . $category_alias . '/';
unset( $params[ 'category' ] );
} else {
$url = 'catalog/';
}
$this->setFilterUrl($params, $url);
foreach ($params as $key => $param) {
if (empty( $params[ $key ] )) {
unset( $params[ $key ] );
}
}
if (!empty( $params ) && ( $query = http_build_query($params) ) !== '') {
$url .= '?' . $query;
}
return $url;
break;
case 'catalog/product':
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$product_alias = '';
$variant_sku = '';
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if (!empty( $params[ 'product' ] )) {
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$product_alias = strtolower($params[ 'product' ]);
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unset( $params[ 'product' ] );
}
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if (!empty( $params[ 'variant' ] )) {
$variant_sku = strtolower($params[ 'variant' ]);
unset( $params[ 'variant' ] );
}
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$url = 'product/' . $product_alias . '/' . $variant_sku;
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if (!empty( $params ) && ( $query = http_build_query($params) ) !== '') {
$url .= '?' . $query;
}
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return $url;
break;
}
}
private function option_value_encode($value)
{
return str_replace(
[
',',
'/',
],
[
'~',
'&s;',
],
$value
);
}
private function setFilterUrl(&$params, &$url)
{
$filter = [];
if (!empty( $params[ 'filters' ] )) {
foreach ($params[ 'filters' ] as $key => $values) {
switch ($key) {
case 'prices':
$filter[] = $key . '=' . implode(':', $values);
break;
default:
foreach ($values as &$value) {
$value = $this->option_value_encode($value);
if (empty( $value )) {
unset( $value );
}
}
$filter[] = $key . '=' . implode(',', $values);
break;
}
}
if (!empty( $filter )) {
$url .= 'filters:' . implode(';', $filter);
}
unset( $params[ 'filters' ] );
}
}
private function parseFilter($paths, &$params)
{
$params[ 'filters' ] = [];
$filter_str = substr($paths, 8);
$filter_options = explode(';', $filter_str);
foreach ($filter_options as $filter_option) {
$filter_exp = explode('=', $filter_option);
if (!empty( $filter_exp[ 1 ] )) {
list( $filter_key, $filter_option ) = explode('=', $filter_option);
if ($filter_key == 'prices') { // price-interval section
$prices = explode(':', $filter_option);
$params[ 'filters' ][ $filter_key ] = [
'min' => floatval($prices[ 0 ]),
'max' => floatval($prices[ 1 ]),
];
} else { // brands and other sections
$params[ 'filters' ][ $filter_key ] = explode(',', $filter_option);
}
} else {
throw new HttpException(404, 'Page not found');
}
}
}
}
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