1 | <?php |
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2 | |||
3 | namespace SilverShop\Extension; |
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4 | |||
5 | use SilverShop\Forms\VariationForm; |
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6 | use SilverShop\Model\Variation\AttributeType; |
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7 | use SilverShop\Model\Variation\AttributeValue; |
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8 | use SilverShop\Model\Variation\Variation; |
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9 | use SilverShop\ORM\FieldType\ShopCurrency; |
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10 | use SilverShop\Page\Product; |
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11 | use SilverStripe\Forms\FieldList; |
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12 | use SilverStripe\Forms\GridField\GridField; |
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13 | use SilverStripe\Forms\GridField\GridFieldConfig_RecordEditor; |
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14 | use SilverStripe\Forms\LabelField; |
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15 | use SilverStripe\Forms\ListboxField; |
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16 | use SilverStripe\ORM\DataExtension; |
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17 | use SilverStripe\ORM\DataList; |
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18 | use SilverStripe\Versioned\Versioned; |
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19 | use SilverStripe\View\ArrayData; |
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20 | |||
21 | /** |
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22 | * Adds extra fields and relationships to Products for variations support. |
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23 | * |
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24 | * @package silvershop |
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25 | * @subpackage variations |
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26 | */ |
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27 | class ProductVariationsExtension extends DataExtension |
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28 | { |
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29 | private static $has_many = [ |
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30 | 'Variations' => Variation::class, |
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31 | ]; |
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32 | |||
33 | private static $many_many = [ |
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34 | 'VariationAttributeTypes' => AttributeType::class, |
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35 | ]; |
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36 | |||
37 | /** |
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38 | * Adds variations specific fields to the CMS. |
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39 | */ |
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40 | public function updateCMSFields(FieldList $fields) |
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41 | { |
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42 | $fields->addFieldsToTab('Root.Variations', [ |
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43 | ListboxField::create( |
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44 | 'VariationAttributeTypes', |
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45 | _t(__CLASS__ . '.Attributes', "Attributes"), |
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46 | AttributeType::get()->map('ID', 'Title')->toArray() |
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47 | ) |
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48 | ->setDescription(_t( |
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49 | __CLASS__ . '.AttributesDescription', |
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50 | 'These are fields to indicate the way(s) each variation varies. Once selected, they can be edited on each variation.' |
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51 | )), |
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52 | GridField::create( |
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53 | 'Variations', |
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54 | _t(__CLASS__ . '.Variations', 'Variations'), |
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55 | $this->owner->Variations(), |
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56 | GridFieldConfig_RecordEditor::create() |
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57 | ) |
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58 | ]); |
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59 | if ($this->owner->Variations()->exists()) { |
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60 | $fields->addFieldToTab( |
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61 | 'Root.Pricing', |
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62 | LabelField::create( |
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63 | 'variationspriceinstructinos', |
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64 | _t( |
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65 | __CLASS__ . '.VariationsInfo', |
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66 | 'Price - Because you have one or more variations, the price can be set in the "Variations" tab.' |
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67 | ) |
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68 | ) |
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69 | ); |
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70 | $fields->removeFieldFromTab('Root.Pricing', 'BasePrice'); |
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71 | $fields->removeFieldFromTab('Root.Main', 'InternalItemID'); |
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72 | } |
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73 | } |
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74 | |||
75 | public function PriceRange() |
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76 | { |
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77 | $variations = $this->owner->Variations(); |
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78 | |||
79 | if (!Product::config()->allow_zero_price) { |
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80 | $variations = $variations->filter('Price:GreaterThan', 0); |
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81 | } |
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82 | |||
83 | if (!$variations->exists() || !$variations->Count()) { |
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84 | return null; |
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85 | } |
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86 | |||
87 | $prices = $variations->map('ID', 'SellingPrice')->toArray(); |
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88 | $pricedata = array( |
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89 | 'HasRange' => false, |
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90 | 'Max' => ShopCurrency::create(), |
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91 | 'Min' => ShopCurrency::create(), |
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92 | 'Average' => ShopCurrency::create(), |
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93 | ); |
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94 | $count = count($prices); |
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95 | $sum = array_sum($prices); |
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96 | $maxprice = max($prices); |
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97 | $minprice = min($prices); |
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98 | $pricedata['HasRange'] = ($minprice != $maxprice); |
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99 | $pricedata['Max']->setValue($maxprice); |
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100 | $pricedata['Min']->setValue($minprice); |
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101 | if ($count > 0) { |
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102 | $pricedata['Average']->setValue($sum / $count); |
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103 | } |
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104 | |||
105 | return ArrayData::create($pricedata); |
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106 | } |
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107 | |||
108 | /** |
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109 | * Pass an array of attribute ids to query for the appropriate variation. |
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110 | * |
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111 | * @param array $attributes |
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112 | * |
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113 | * @return Variation|null |
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114 | */ |
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115 | public function getVariationByAttributes(array $attributes) |
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116 | { |
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117 | if (!is_array($attributes)) { |
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118 | return null; |
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119 | } |
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120 | |||
121 | $attrs = array_filter(array_values($attributes)); |
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122 | $set = Variation::get()->filter('ProductID', $this->owner->ID); |
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123 | |||
124 | foreach ($attrs as $i => $valueid) { |
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125 | $alias = "A$i"; |
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126 | $set = $set->innerJoin( |
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127 | 'SilverShop_Variation_AttributeValues', |
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128 | "\"SilverShop_Variation\".\"ID\" = \"$alias\".\"SilverShop_VariationID\"", |
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129 | $alias |
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130 | )->where(["\"$alias\".\"SilverShop_AttributeValueID\" = ?" => $valueid]); |
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131 | } |
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132 | |||
133 | return $set->first(); |
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134 | } |
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135 | |||
136 | /** |
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137 | * Generates variations based on selected attributes. |
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138 | * |
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139 | * @param AttributeType $attributetype |
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140 | * @param array $values |
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141 | * @throws \SilverStripe\ORM\ValidationException |
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142 | */ |
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143 | public function generateVariationsFromAttributes(AttributeType $attributetype, array $values) |
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144 | { |
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145 | //TODO: introduce transactions here, in case objects get half made etc |
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146 | //if product has variation attribute types |
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147 | if (!empty($values)) { |
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148 | //TODO: get values dataobject set |
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149 | $avalues = $attributetype->convertArrayToValues($values); |
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150 | $existingvariations = $this->owner->Variations(); |
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151 | if ($existingvariations->exists()) { |
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152 | //delete old variation, and create new ones - to prevent modification of exising variations |
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153 | foreach ($existingvariations as $oldvariation) { |
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154 | $oldvalues = $oldvariation->AttributeValues(); |
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155 | foreach ($avalues as $value) { |
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156 | $newvariation = $oldvariation->duplicate(); |
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157 | $newvariation->InternalItemID = $this->owner->InternalItemID . '-' . $newvariation->ID; |
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158 | $newvariation->AttributeValues()->addMany($oldvalues); |
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159 | $newvariation->AttributeValues()->add($value); |
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160 | $newvariation->write(); |
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161 | $existingvariations->add($newvariation); |
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162 | } |
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163 | $existingvariations->remove($oldvariation); |
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164 | $oldvariation->AttributeValues()->removeAll(); |
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165 | $oldvariation->delete(); |
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166 | $oldvariation->destroy(); |
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167 | //TODO: check that old variations actually stick around, as they will be needed for past orders etc |
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168 | } |
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169 | } else { |
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170 | foreach ($avalues as $value) { |
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171 | $variation = Variation::create(); |
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172 | $variation->ProductID = $this->owner->ID; |
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173 | $variation->Price = $this->owner->BasePrice; |
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174 | $variation->write(); |
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175 | $variation->InternalItemID = $this->owner->InternalItemID . '-' . $variation->ID; |
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176 | $variation->AttributeValues()->add($value); |
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177 | $variation->write(); |
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178 | $existingvariations->add($variation); |
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179 | } |
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180 | } |
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181 | } |
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182 | } |
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183 | |||
184 | /** |
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185 | * Get all the {@link ProductAttributeValue} for a given attribute type, |
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186 | * based on this product's variations. |
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187 | * |
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188 | * @return DataList |
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189 | */ |
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190 | public function possibleValuesForAttributeType($type) |
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191 | { |
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192 | if (!is_numeric($type)) { |
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193 | $type = $type->ID; |
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194 | } |
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195 | |||
196 | if (!$type) { |
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197 | return null; |
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198 | } |
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199 | |||
200 | $list = AttributeValue::get() |
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201 | ->innerJoin( |
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202 | 'SilverShop_Variation_AttributeValues', |
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203 | '"SilverShop_AttributeValue"."ID" = "SilverShop_Variation_AttributeValues"."SilverShop_AttributeValueID"' |
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204 | )->innerJoin( |
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205 | 'SilverShop_Variation', |
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206 | '"SilverShop_Variation_AttributeValues"."SilverShop_VariationID" = "SilverShop_Variation"."ID"' |
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207 | )->where("TypeID = $type AND \"SilverShop_Variation\".\"ProductID\" = " . $this->owner->ID); |
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208 | |||
209 | if (!Product::config()->allow_zero_price) { |
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210 | $list = $list->where('"SilverShop_Variation"."Price" > 0'); |
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211 | } |
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212 | return $list; |
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213 | } |
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214 | |||
215 | /** |
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216 | * Make sure variations are deleted with product. |
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217 | */ |
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218 | public function onAfterDelete() |
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219 | { |
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220 | $remove = false; |
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221 | // if a record is staged or live, leave it's variations alone. |
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222 | if (!property_exists($this, 'owner')) { |
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223 | $remove = true; |
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224 | } else { |
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225 | $staged = Versioned::get_by_stage($this->owner->ClassName, 'Stage') |
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226 | ->byID($this->owner->ID); |
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227 | $live = Versioned::get_by_stage($this->owner->ClassName, 'Live') |
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228 | ->byID($this->owner->ID); |
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229 | if (!$staged && !$live) { |
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230 | $remove = true; |
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231 | } |
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232 | } |
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233 | if ($remove) { |
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234 | foreach ($this->owner->Variations() as $variation) { |
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235 | $variation->delete(); |
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236 | $variation->destroy(); |
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237 | } |
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238 | } |
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239 | } |
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240 | |||
241 | public function updateFormClass(&$formClass) |
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242 | { |
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243 | if ($this->owner->Variations()->exists()) { |
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244 | $formClass = VariationForm::class; |
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245 | } |
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246 | } |
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247 | } |
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248 |