Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Item 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 Item, and based on these observations, apply Extract Interface, too.
1 | <?php |
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14 | class Item extends \Model { |
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15 | |||
16 | public static $categoryModel = 'Ecommerce\Category'; |
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17 | public static $objectName = 'Товар'; |
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18 | public static $labels = [ |
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19 | 'name' => 'Название', |
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20 | 'alias' => 'Алиас', |
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21 | 'category_id' => 'Раздел', |
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22 | 'description' => 'Описание', |
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23 | 'item_type_id' => 'Тип товара', |
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24 | 'image_file_id' => 'Изображение', |
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25 | 'best' => 'Лучшее предложение', |
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26 | 'options' => 'Параметры', |
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27 | 'offers' => 'Торговые предложения', |
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28 | 'widget' => 'Виджет для отображения в каталоге', |
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29 | 'view' => 'Шаблон для отображения полной информации', |
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30 | 'deleted' => 'Удален', |
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31 | 'imgs' => 'Фото' |
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32 | ]; |
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33 | public static $cols = [ |
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34 | //Основные параметры |
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35 | 'category_id' => ['type' => 'select', 'source' => 'relation', 'relation' => 'category'], |
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36 | 'image_file_id' => ['type' => 'image'], |
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37 | 'name' => ['type' => 'text'], |
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38 | 'alias' => ['type' => 'text'], |
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39 | 'description' => ['type' => 'html'], |
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40 | 'item_type_id' => ['type' => 'select', 'source' => 'relation', 'relation' => 'type'], |
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41 | 'best' => ['type' => 'bool'], |
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42 | 'deleted' => ['type' => 'bool'], |
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43 | //Системные |
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44 | 'user_id' => ['type' => 'select', 'source' => 'relation', 'relation' => 'user'], |
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45 | 'weight' => ['type' => 'number'], |
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46 | 'sales' => ['type' => 'number'], |
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47 | 'imported' => ['type' => 'text'], |
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48 | 'tree_path' => ['type' => 'text'], |
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49 | 'search_index' => ['type' => 'text'], |
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50 | 'date_create' => ['type' => 'dateTime'], |
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51 | 'widget' => ['type' => 'text'], |
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52 | 'view' => ['type' => 'text'], |
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53 | //Менеджеры |
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54 | 'options' => ['type' => 'dataManager', 'relation' => 'options'], |
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55 | 'offers' => ['type' => 'dataManager', 'relation' => 'offers'], |
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56 | 'imgs' => ['type' => 'dataManager', 'relation' => 'images'], |
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57 | ]; |
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58 | |||
59 | public static function simpleItemHandler($request) { |
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110 | |||
111 | public static $dataManagers = [ |
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112 | 'manager' => [ |
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113 | 'name' => 'Товары', |
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114 | 'cols' => [ |
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115 | 'name', |
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116 | 'imgs', |
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117 | 'category_id', |
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118 | 'item_type_id', |
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119 | 'best', |
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120 | 'deleted', |
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121 | 'options', |
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122 | 'offers', |
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123 | ], |
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124 | 'categorys' => [ |
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125 | 'model' => 'Ecommerce\Category', |
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126 | ], |
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127 | 'sortMode' => true |
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128 | ] |
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129 | ]; |
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130 | public static $forms = [ |
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131 | 'manager' => [ |
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132 | 'map' => [ |
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133 | ['name', 'alias'], |
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134 | ['category_id', 'item_type_id', 'deleted'], |
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135 | ['widget', 'view'], |
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136 | ['best', 'image_file_id'], |
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137 | ['description'], |
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138 | ['imgs'], |
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139 | ['options'], |
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140 | ['offers'], |
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141 | ] |
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142 | ], |
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143 | 'simpleItem' => [ |
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144 | 'options' => [ |
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145 | 'access' => [ |
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146 | 'groups' => [ |
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147 | 3 |
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148 | ] |
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149 | ], |
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150 | ], |
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151 | 'name' => 'Простой товар с ценой', |
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152 | 'inputs' => [ |
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153 | 'name' => ['type' => 'text'], |
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154 | 'description' => ['type' => 'html'], |
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155 | 'category' => ['type' => 'select', 'source' => 'model', 'model' => 'Ecommerce\Category', 'label' => 'Категория'], |
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156 | 'image' => ['type' => 'image', 'label' => 'Изображение'], |
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157 | 'price' => ['type' => 'text', 'label' => 'Цена'], |
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158 | 'currency' => ['type' => 'select', 'source' => 'model', 'model' => 'Money\Currency', 'label' => 'Валюта'], |
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159 | 'options' => ['type' => 'dynamicList', 'source' => 'options', 'options' => [ |
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160 | 'inputs' => [ |
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161 | 'option' => ['type' => 'select', 'source' => 'model', 'model' => 'Ecommerce\Item\Option', 'label' => 'Свойство'], |
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162 | 'value' => ['type' => 'dynamicType', 'typeSource' => 'selfMethod', 'selfMethod' => 'realType', 'label' => 'Значение'], |
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163 | ] |
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164 | ] |
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165 | ], |
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166 | 'offerOptions' => ['type' => 'dynamicList', 'source' => 'options', 'options' => [ |
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167 | 'inputs' => [ |
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168 | 'option' => ['type' => 'select', 'source' => 'model', 'model' => 'Ecommerce\Item\Offer\Option', 'label' => 'Свойство предложения'], |
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169 | 'value' => ['type' => 'dynamicType', 'typeSource' => 'selfMethod', 'selfMethod' => 'realType', 'label' => 'Значение'], |
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170 | ] |
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171 | ],'label'=>'Параметры предлоежния' |
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172 | ] |
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173 | ], |
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174 | 'map' => [ |
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175 | ['name', 'category'], |
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176 | ['description'], |
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177 | ['image'], |
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178 | ['price', 'currency'], |
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179 | ['options'], |
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180 | ['offerOptions'], |
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181 | ], |
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182 | 'handler' => 'simpleItemHandler' |
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183 | ] |
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184 | ]; |
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185 | |||
186 | public function realType() { |
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201 | |||
202 | public static function indexes() { |
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224 | |||
225 | public function beforeSave() { |
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260 | |||
261 | public static function relations() { |
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300 | |||
301 | public function getPrice() { |
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317 | |||
318 | public function name() { |
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327 | |||
328 | public function beforeDelete() { |
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345 | |||
346 | public function getHref() { |
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349 | |||
350 | } |
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351 |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: