Total Complexity | 45 |
Total Lines | 343 |
Duplicated Lines | 0 % |
Changes | 5 | ||
Bugs | 1 | Features | 0 |
Complex classes like AddToCartForm 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.
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 AddToCartForm, and based on these observations, apply Extract Interface, too.
1 | <?php |
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27 | class AddToCartForm extends Form |
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28 | { |
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29 | /** |
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30 | * @var FoxyHelper |
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31 | */ |
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32 | protected FoxyHelper $helper; |
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33 | |||
34 | /** |
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35 | * @var Product |
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36 | */ |
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37 | private Product $product; |
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38 | |||
39 | /** |
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40 | * @var string If there are no variation types defined this value will be used in place of type title |
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41 | */ |
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42 | private static $default_options_title = 'Options'; |
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43 | |||
44 | /** |
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45 | * @param $helper |
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46 | * |
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47 | * @return $this |
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48 | */ |
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49 | public function setFoxyHelper($helper): self |
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50 | { |
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51 | $helper = $helper === null ? FoxyHelper::create() : $helper; |
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52 | if ($helper instanceof FoxyHelper) { |
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53 | $this->helper = $helper; |
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54 | |||
55 | return $this; |
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56 | } |
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57 | throw new \InvalidArgumentException('$helper needs to be an instance of FoxyHelper.'); |
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58 | } |
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59 | |||
60 | /** |
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61 | * @return FoxyHelper |
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62 | */ |
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63 | public function getFoxyHelper(): FoxyHelper |
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64 | { |
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65 | if (!$this->helper) { |
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66 | $this->setFoxyHelper(FoxyHelper::create()); |
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67 | } |
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68 | |||
69 | return $this->helper; |
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70 | } |
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71 | |||
72 | /** |
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73 | * @param $product |
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74 | * |
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75 | * @return $this |
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76 | */ |
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77 | public function setProduct($product): self |
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78 | { |
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79 | if ($product instanceof VirtualPage) { |
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80 | if (!$product = Product::get_by_id(Product::class, $product->CopyContentFromID)) { |
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81 | throw new \InvalidArgumentException(sprintf('$product needs to be a descendant of %s, or a Virtual Page copied from a %s descendant.', Product::class, Product::class)); |
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82 | } |
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83 | } |
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84 | |||
85 | $this->product = $product; |
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86 | |||
87 | return $this; |
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88 | } |
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89 | |||
90 | /** |
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91 | * @return Product |
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92 | */ |
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93 | public function getProduct(): Product |
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94 | { |
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95 | return $this->product; |
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96 | } |
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97 | |||
98 | /** |
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99 | * AddToCartForm constructor. |
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100 | * @param $controller |
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101 | * @param $name |
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102 | * @param FieldList|null $fields |
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103 | * @param FieldList|null $actions |
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104 | * @param null $validator |
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105 | * @param null $product |
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106 | * @param null $helper |
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107 | * @throws ValidationException |
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108 | */ |
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109 | public function __construct( |
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110 | $controller, |
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111 | $name, |
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112 | FieldList $fields = null, |
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113 | FieldList $actions = null, |
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114 | $validator = null, |
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115 | $product = null, |
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116 | $helper = null |
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117 | ) |
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118 | { |
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119 | $this->setProduct($product); |
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120 | $this->setFoxyHelper($helper); |
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121 | |||
122 | $fields = ($fields != null && $fields->exists()) ? |
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123 | $this->getProductFields($fields) : |
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124 | $this->getProductFields(FieldList::create()); |
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125 | |||
126 | $actions = ($actions != null && $actions->exists()) ? |
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127 | $this->getProductActions($actions) : |
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128 | $this->getProductActions(FieldList::create()); |
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129 | |||
130 | $validator = (!empty($validator) || $validator != null) ? $validator : RequiredFields::create(); |
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131 | |||
132 | parent::__construct($controller, $name, $fields, $actions, $validator); |
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133 | |||
134 | //have to call after parent::__construct() |
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135 | $this->setAttribute('action', FoxyHelper::FormActionURL()); |
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136 | $this->disableSecurityToken(); |
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137 | $this->setHTMLID($this->getTemplateHelper()->generateFormID($this) . "_{$product->ID}"); |
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138 | } |
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139 | |||
140 | /** |
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141 | * @param FieldList $fields |
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142 | * |
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143 | * @return FieldList |
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144 | */ |
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145 | protected function getProductFields(FieldList $fields): FieldList |
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146 | { |
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147 | $hiddenTitle = ($this->product->ReceiptTitle) ? |
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148 | htmlspecialchars($this->product->ReceiptTitle) : |
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149 | htmlspecialchars($this->product->Title); |
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150 | $code = $this->product->Code; |
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151 | |||
152 | if ($this->product->getIsAvailable()) { |
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153 | $fields->push( |
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154 | HiddenField::create('name') |
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155 | ->setValue( |
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156 | self::getGeneratedValue($code, 'name', $hiddenTitle, 'value') |
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157 | ) |
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158 | ); |
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159 | |||
160 | $fields->push( |
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161 | HiddenField::create('category') |
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162 | ->setValue( |
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163 | self::getGeneratedValue($code, 'category', $this->product->FoxyCategory()->Code, 'value') |
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164 | ) |
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165 | ); |
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166 | |||
167 | $fields->push( |
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168 | HiddenField::create('code') |
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169 | ->setValue( |
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170 | self::getGeneratedValue($code, 'code', $this->product->Code, 'value') |
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171 | ) |
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172 | ); |
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173 | |||
174 | $fields->push( |
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175 | HiddenField::create('product_id') |
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176 | ->setValue( |
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177 | self::getGeneratedValue($code, 'product_id', $this->product->ID, 'value') |
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178 | ) |
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179 | ->setName('h:product_id') |
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180 | ); |
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181 | |||
182 | $fields->push( |
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183 | HiddenField::create('price') |
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184 | ->setValue( |
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185 | self::getGeneratedValue($code, 'price', $this->product->Price, 'value') |
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186 | ) |
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187 | ); |
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188 | |||
189 | if ($this->product->hasMethod('AbsoluteLink')) { |
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190 | $fields->push( |
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191 | HiddenField::create('url') |
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192 | ->setValue( |
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193 | self::getGeneratedValue($code, 'url', $this->product->AbsoluteLink(), 'value') |
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194 | ) |
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195 | ); |
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196 | } |
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197 | |||
198 | if ($this->product instanceof ShippableProduct) { |
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199 | if ($this->product->Weight > 0) { |
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200 | $fields->push( |
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201 | HiddenField::create('weight') |
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202 | ->setValue( |
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203 | self::getGeneratedValue($code, 'weight', $this->product->Weight, 'value') |
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204 | ) |
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205 | ); |
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206 | } |
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207 | } |
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208 | |||
209 | $image = null; |
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210 | if ($this->product->hasMethod('getImage')) { |
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211 | if ($this->product->getImage()) { |
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212 | $image = $this->product->getImage()->CMSThumbnail()->absoluteURL; |
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213 | } |
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214 | if ($image) { |
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215 | $fields->push( |
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216 | HiddenField::create('image') |
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217 | ->setValue( |
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218 | self::getGeneratedValue($code, 'image', $image, 'value') |
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219 | ) |
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220 | ); |
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221 | } |
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222 | } |
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223 | |||
224 | if ($this->product->QuantityMax > 0) { |
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225 | $fields->push( |
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226 | HiddenField::create('quantity_max') |
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227 | ->setValue(self::getGeneratedValue($code, 'quantity_max', $this->product->QuantityMax, 'value')) |
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228 | ); |
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229 | } |
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230 | |||
231 | if ($variationsField = $this->getProductVariations()) { |
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232 | $fields->push($variationsField); |
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233 | } |
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234 | |||
235 | if ($this->product->QuantityMax != 1) { |
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236 | $fields->push(QuantityField::create('x:visibleQuantity')->setTitle('Quantity')->setValue(1)); |
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237 | } |
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238 | $fields->push( |
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239 | HiddenField::create('quantity') |
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240 | ->setValue( |
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241 | self::getGeneratedValue($code, 'quantity', 1, 'value') |
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242 | ) |
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243 | ); |
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244 | |||
245 | $fields->push( |
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246 | HeaderField::create('submitPrice', '$' . $this->product->Price, 4) |
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247 | ->addExtraClass('submit-price') |
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248 | ); |
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249 | } |
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250 | |||
251 | $this->extend('updateProductFields', $fields); |
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252 | |||
253 | return $fields; |
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254 | } |
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255 | |||
256 | /** |
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257 | * @param FieldList $actions |
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258 | * |
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259 | * @return FieldList |
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260 | */ |
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261 | protected function getProductActions(FieldList $actions): FieldList |
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277 | } |
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278 | |||
279 | /** |
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280 | * @param null $productCode |
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281 | * @param null $optionName |
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282 | * @param null $optionValue |
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283 | * @param string $method |
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284 | * @param bool $output |
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285 | * @param bool $urlEncode |
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286 | * |
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287 | * @return null|string |
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288 | */ |
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289 | public static function getGeneratedValue( |
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290 | $productCode = null, |
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291 | $optionName = null, |
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292 | $optionValue = null, |
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293 | $method = 'name', |
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294 | $output = false, |
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295 | $urlEncode = false |
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296 | ): string |
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297 | { |
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298 | $optionName = ($optionName !== null) ? preg_replace('/\s/', '_', $optionName) : $optionName; |
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299 | $helper = FoxyHelper::create(); |
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300 | |||
301 | return $helper::fc_hash_value($productCode, $optionName, $optionValue, $method, $output, $urlEncode); |
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302 | } |
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303 | |||
304 | /** |
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305 | * @return CompositeField|FormField|DropdownField|bool |
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306 | */ |
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307 | protected function getProductVariations() |
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327 | } |
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328 | |||
329 | /** |
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330 | * @param HasManyList $variations |
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331 | * @param VariationType|null $type |
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332 | * @return DropdownField |
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333 | */ |
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334 | protected function createVariationField(HasManyList $variations, VariationType $type = null): DropdownField |
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370 | } |
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371 | } |
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372 |