Complex classes like Prestashop often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Prestashop, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 9 | class Prestashop implements MessageComponentInterface |
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| 10 | { |
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| 11 | protected $clients; |
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| 12 | protected $dbConn; |
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| 13 | |||
| 14 | public function __construct() |
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| 27 | |||
| 28 | public function onOpen(ConnectionInterface $conn) |
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| 35 | |||
| 36 | public function onMessage(ConnectionInterface $from, $msg) |
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| 58 | |||
| 59 | /** |
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| 60 | * @param string $data |
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| 61 | */ |
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| 62 | private function getCombinationData($data) { |
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| 78 | |||
| 79 | /** |
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| 80 | * @param string $data |
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| 81 | */ |
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| 82 | private function getProductData($data) { |
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| 83 | $category = (int) substr($data, 0, strpos($data, ',')); |
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| 84 | if ($category != 0) { |
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| 85 | $products = $this->getProducts($category); |
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| 86 | } else { |
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| 87 | $product = substr($data, strpos($data, ',') + 1); |
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| 88 | $products = $this->getProducts($product); |
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| 89 | } |
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| 90 | Analog::log("Product variables: $data"); |
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| 91 | return $products; |
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| 92 | } |
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| 93 | |||
| 94 | /** |
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| 95 | * @param string $data |
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| 96 | */ |
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| 97 | private function getCartData($data) { |
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| 98 | $cart = substr($data, 0, strpos($data, ',')); |
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| 99 | $cust = substr($data, strpos($data, ',') + 1); |
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| 100 | |||
| 101 | Analog::log("Cart & customer variables: $data"); |
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| 102 | $otherCarts = $this->processFindCarts($cart, $cust); |
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| 103 | return $otherCarts; |
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| 104 | } |
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| 105 | |||
| 106 | |||
| 107 | /** |
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| 108 | * @param string $cart |
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| 109 | * @param string $cust |
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| 110 | */ |
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| 111 | private function processFindCarts($cart, $cust) |
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| 112 | { |
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| 113 | $sql = 'SELECT DISTINCT pc.id_cart as id, DATE_FORMAT(pc.date_upd,"%a %D %b %Y, %l:%i %p") as timer from '._DB_PREFIX_.'cart as pc |
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| 114 | LEFT JOIN '._DB_PREFIX_.'cart_product as pcp on pcp.id_cart = pc.id_cart |
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| 115 | WHERE pc.id_cart NOT IN (SELECT po.id_cart FROM '._DB_PREFIX_.'orders as po) |
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| 116 | AND pcp.id_product IS NOT NULL |
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| 117 | AND pc.id_customer = '.(int) $cust.' |
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| 118 | AND pc.id_cart != '.(int) $cart.' |
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| 119 | ORDER BY pc.date_upd DESC |
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| 120 | LIMIT 10'; |
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| 121 | if ($results = $this->dbConn->fetchRowMany($sql)) { |
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| 122 | foreach ($results as &$row) { |
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| 123 | $row['token'] = md5(_COOKIE_KEY_.'recover_cart_'.$row['id']); |
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| 124 | } |
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| 125 | |||
| 126 | return $results; |
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| 127 | } |
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| 128 | } |
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| 129 | |||
| 130 | |||
| 131 | /** |
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| 132 | * @param string $product |
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| 133 | */ |
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| 134 | private function getAttribute($product, $choices) |
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| 135 | { |
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| 136 | $sql = 'SELECT pac.id_product_attribute from '._DB_PREFIX_.'product_attribute_combination as pac |
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| 137 | LEFT JOIN '._DB_PREFIX_.'product_attribute as ppa on ppa.id_product_attribute = pac.id_product_attribute |
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| 138 | LEFT JOIN '._DB_PREFIX_.'attribute a ON (a.id_attribute = pac.id_attribute) |
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| 139 | WHERE ppa.id_product = '.$product; |
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| 140 | foreach ($choices as $value) { |
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| 141 | $sql .= ' AND pac.id_product_attribute IN |
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| 142 | ( SELECT pac.id_product_attribute from '._DB_PREFIX_.'product_attribute_combination as pac |
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| 143 | WHERE pac.id_attribute = '.(int) $value.') '; |
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| 144 | } |
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| 145 | $sql .= ' GROUP BY pac.id_product_attribute'; |
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| 146 | $id_product_attribute = $this->dbConn->fetchColumn($sql); |
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| 147 | |||
| 148 | return $id_product_attribute; |
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| 149 | } |
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| 150 | |||
| 151 | /** |
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| 152 | * @param null|string $id_product_attribute |
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| 153 | */ |
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| 154 | private function buildAttributes($combinations, $id_product_attribute, $row) |
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| 155 | { |
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| 156 | $combinationSet = array(); |
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| 157 | $specific_price = null; |
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| 158 | |||
| 159 | $combinations['name'] = $row['product_name']; |
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| 160 | $typcheck = array("id_product", "price", "base_price", "price", "ecotax", "weight", "quantity", "unit_impact", "minimal_quantity"); |
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| 161 | |||
| 162 | foreach ($typcheck as $key=>$value) |
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| 163 | { |
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| 164 | ((strpos($value, 'price') !== false) || (strpos($value, 'weight') !== false) || (strpos($value, 'ecotax') !== false) || (strpos($value, 'impact') !== false)) ? $combinations[$value] = (float) $row[$value] : $combinations[$value] = (int) $row[$value]; |
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| 165 | |||
| 166 | } |
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| 167 | $combinations['attributes_values'][$row['id_attribute_group']] = $row['attribute_name']; |
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| 168 | $combinations['attributes'][] = (int) $row['id_attribute']; |
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| 169 | |||
| 170 | list ($combinationSet[(int) $row['id_product_attribute']], $combinations['specific_price']) = $this->getCombinationSpecificPrice($combinationSet, $row, $id_product_attribute); |
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| 171 | |||
| 172 | $combinations['reference'] = $row['reference']; |
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| 173 | $combinations['available_date'] = $this->getAvailableDate($row); |
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| 174 | $combinations['image'] = $this->getComboImage($id_product_attribute); |
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| 175 | $combinations['final_price'] = $this->getFinalPrice($row, $specific_price); |
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| 176 | |||
| 177 | return $combinations; |
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| 178 | } |
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| 179 | |||
| 180 | private function getFinalPrice($row, $specific_price) |
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| 181 | { |
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| 182 | $specific_price['price'] != 0 ? $final_price = (((float) $row['base_price'] + (float) $row['price']) * (((int) 100 - $specific_price['reduction_percent']) / 100)) : $final_price = (float) $row['base_price'] + (float) $row['price']; |
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| 183 | return $final_price; |
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| 184 | } |
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| 185 | |||
| 186 | |||
| 187 | private function getAvailableDate($row) { |
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| 188 | ($row['available_date'] != '0000-00-00') ? $dater = $row['available_date'] : $dater = ''; |
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| 189 | return $dater; |
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| 190 | } |
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| 191 | |||
| 192 | /** |
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| 193 | * @param null|string $id_product_attribute |
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| 194 | */ |
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| 195 | private function getCombinationSpecificPrice($combinationSet, $row, $id_product_attribute) { |
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| 196 | // Call getSpecificPrice in order to set $combination_specific_price |
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| 197 | if (!isset($combinationSet[(int) $row['id_product_attribute']])) { |
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| 198 | $specific_price = $this->getSpecificPrice($id_product_attribute, $row['id_product']); |
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| 199 | $combinationSet[(int) $row['id_product_attribute']] = true; |
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| 200 | return array($combinationSet, $specific_price); |
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| 201 | } else { |
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| 202 | return array(false, null); |
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| 203 | } |
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| 204 | } |
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| 205 | |||
| 206 | |||
| 207 | |||
| 208 | /** |
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| 209 | * @param null|string $id_product_attribute |
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| 210 | */ |
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| 211 | private function getCombination($id_product_attribute) |
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| 212 | { |
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| 213 | $sql = 'SELECT ag.`id_attribute_group`, ag.`is_color_group`, agl.`name` AS group_name, agl.`public_name` AS public_group_name, |
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| 214 | a.`id_attribute`, al.`name` AS attribute_name, a.`color` AS attribute_color, pas.`id_product_attribute`, |
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| 215 | IFNULL(stock.quantity, 0) as quantity, pc.price as base_price, pc.id_product, pas.`price`, pas.`ecotax`, pas.`weight`, |
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| 216 | pas.`default_on`, pa.`reference`, pas.`unit_price_impact`, pl.name as product_name, |
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| 217 | pas.`minimal_quantity`, pas.`available_date`, ag.`group_type` |
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| 218 | FROM `'._DB_PREFIX_.'product_attribute` pa |
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| 219 | INNER JOIN '._DB_PREFIX_.'product_attribute_shop pas |
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| 220 | ON (pas.id_product_attribute = pa.id_product_attribute AND pas.id_shop = 1) |
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| 221 | LEFT JOIN '._DB_PREFIX_.'stock_available stock |
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| 222 | ON (stock.id_product = pa.id_product AND stock.id_product_attribute = IFNULL(`pa`.id_product_attribute, 0) AND stock.id_shop = 1 ) |
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| 223 | LEFT JOIN `'._DB_PREFIX_.'product_attribute_combination` pac ON (pac.`id_product_attribute` = pa.`id_product_attribute`) |
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| 224 | LEFT JOIN `'._DB_PREFIX_.'product` pc ON (pa.`id_product` = pc.`id_product`) |
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| 225 | LEFT JOIN `'._DB_PREFIX_.'product_lang` pl ON (pc.`id_product` = pl.`id_product`) |
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| 226 | LEFT JOIN `'._DB_PREFIX_.'attribute` a ON (a.`id_attribute` = pac.`id_attribute`) |
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| 227 | LEFT JOIN `'._DB_PREFIX_.'attribute_group` ag ON (ag.`id_attribute_group` = a.`id_attribute_group`) |
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| 228 | LEFT JOIN `'._DB_PREFIX_.'attribute_lang` al ON (a.`id_attribute` = al.`id_attribute`) |
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| 229 | LEFT JOIN `'._DB_PREFIX_.'attribute_group_lang` agl ON (ag.`id_attribute_group` = agl.`id_attribute_group`) |
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| 230 | INNER JOIN '._DB_PREFIX_.'attribute_shop attribute_shop |
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| 231 | ON (attribute_shop.id_attribute = a.id_attribute AND attribute_shop.id_shop = 1) |
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| 232 | WHERE pas.`id_product_attribute`= '.(int)$id_product_attribute.' |
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| 233 | GROUP BY id_attribute_group, id_product_attribute |
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| 234 | ORDER BY ag.`position` ASC, a.`position` ASC, agl.`name` ASC'; |
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| 235 | |||
| 236 | $combo_groups = $this->dbConn->fetchRowMany($sql); |
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| 237 | |||
| 238 | return $combo_groups; |
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| 239 | } |
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| 240 | |||
| 241 | public function getAttributeBase($attribute) { |
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| 242 | $sql = 'SELECT al.* |
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| 243 | FROM '._DB_PREFIX_.'product_attribute_combination pac |
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| 244 | JOIN '._DB_PREFIX_.'attribute_lang al ON (pac.id_attribute = al.id_attribute AND al.id_lang=1) |
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| 245 | WHERE pac.id_product_attribute='.(int) $attribute; |
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| 246 | $result = $this->dbConn->fetchRowMany($sql); |
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| 247 | |||
| 248 | return $result; |
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| 249 | } |
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| 250 | |||
| 251 | /** |
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| 252 | * @param null|string $id_product_attribute |
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| 253 | * @param string $id_product |
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| 254 | */ |
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| 255 | private function getSpecificPrice($id_product_attribute, $id_product) |
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| 256 | { |
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| 257 | $specific_price = array(); |
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| 258 | if ($this->getNumberSpecificPrice($id_product_attribute, $id_product) > 0) { |
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| 259 | $result = $this->getSpecificPriceData($id_product_attribute, $id_product, date('Y-m-d H:i:s')); |
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| 260 | $specific_price['price'] = $result['price']; |
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| 261 | $specific_price['id_product_attribute'] = $result['id_product_attribute']; |
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| 262 | $specific_price['reduction_percent'] = (int) 100 * $result['reduction']; |
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| 263 | $specific_price['reduction_price'] = 0; |
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| 264 | $specific_price['reduction_type'] = $result['reduction_type']; |
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| 265 | |||
| 266 | return $specific_price; |
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| 267 | } |
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| 268 | } |
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| 269 | |||
| 270 | |||
| 271 | /** |
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| 272 | * @param string $now |
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| 273 | * @param null|string $id_product_attribute |
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| 274 | * @param string $id_product |
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| 275 | */ |
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| 276 | private function getSpecificPriceData($id_product_attribute, $id_product, $now) |
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| 277 | { |
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| 278 | $sql = 'SELECT * FROM '._DB_PREFIX_.'specific_price |
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| 279 | WWHERE id_product = '.(int) $id_product.' |
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| 280 | AND id_product_attribute IN (0, '.(int) $id_product_attribute.') |
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| 281 | AND ( |
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| 282 | (from = \'0000-00-00 00:00:00\' OR \''.$now.'\' >= from) |
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| 283 | AND |
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| 284 | (to = \'0000-00-00 00:00:00\' OR \''.$now.'\' <= to) |
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| 285 | ) '; |
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| 286 | |||
| 287 | $sql .= ' ORDER BY id_product_attribute DESC, from_quantity DESC, id_specific_price_rule ASC'; |
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| 288 | |||
| 289 | $result = $this->dbConn->fetchRow($sql); |
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| 290 | |||
| 291 | return $result; |
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| 292 | } |
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| 293 | |||
| 294 | /** |
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| 295 | * @param null|string $id_product_attribute |
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| 296 | * @param string $id_product |
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| 297 | */ |
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| 298 | private function getNumberSpecificPrice($id_product_attribute, $id_product) |
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| 309 | |||
| 310 | /** |
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| 311 | * @param null|string $id_product_attribute |
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| 312 | */ |
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| 313 | private function getComboImage($id_product_attribute) |
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| 314 | { |
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| 315 | $sql = 'SELECT pai.id_imageas image |
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| 316 | FROM '._DB_PREFIX_.'product_attribute_image pai |
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| 317 | LEFT JOIN '._DB_PREFIX_.'image_lang il ON (il.id_image = pai.id_image) |
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| 318 | LEFT JOIN '._DB_PREFIX_.'image i ON (i.id_image = pai.id_image) |
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| 319 | WHERE pai.id_product_attribute = '.(int) $id_product_attribute.' ORDER by i.position'; |
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| 320 | $image = $this->dbConn->fetchColumn($sql); |
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| 321 | ($image !== false) ? $imager = (int) $image : $imager = -1; |
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| 322 | return $imager; |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * @param string $category |
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| 327 | */ |
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| 328 | private function getProducts($category) |
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| 335 | |||
| 336 | /** |
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| 337 | * @param string $category |
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| 338 | */ |
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| 339 | private function getProductIDs($category) |
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| 340 | { |
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| 341 | $sql = 'SELECT DISTINCT p.id_product |
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| 342 | from '._DB_PREFIX_.'product as p |
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| 343 | LEFT JOIN '._DB_PREFIX_.'image AS i ON i.id_product = p.id_product |
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| 344 | LEFT JOIN '._DB_PREFIX_.'product_lang as pl ON pl.id_product = p.id_product |
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| 345 | WHERE p.active = 1 |
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| 346 | AND p.id_category_default = '.(int) $category.' |
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| 347 | GROUP BY p.id_product'; |
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| 360 | |||
| 361 | /** |
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| 362 | * @param string $ids |
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| 363 | */ |
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| 364 | private function getProduct($ids) |
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| 390 | |||
| 391 | private function getOrderPrice($product) { |
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| 396 | |||
| 397 | private function getProductCat($category) { |
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| 402 | |||
| 403 | |||
| 404 | public function onClose(ConnectionInterface $conn) |
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| 410 | |||
| 411 | public function onError(ConnectionInterface $conn, \Exception $e) |
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| 417 | } |
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| 418 |
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: