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:
1 | <?php |
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16 | class EditableMultipleOptionField extends EditableFormField { |
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17 | |||
18 | /** |
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19 | * Define this field as abstract (not inherited) |
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20 | * |
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21 | * @config |
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22 | * @var bool |
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23 | */ |
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24 | private static $abstract = true; |
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25 | |||
26 | private static $has_many = array( |
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27 | "Options" => "EditableOption" |
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28 | ); |
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29 | |||
30 | /** |
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31 | * @return FieldList |
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32 | */ |
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33 | public function getCMSFields() { |
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34 | $fields = parent::getCMSFields(); |
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35 | |||
36 | $editableColumns = new GridFieldEditableColumns(); |
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37 | $editableColumns->setDisplayFields(array( |
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38 | 'Title' => array( |
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39 | 'title' => _t('EditableMultipleOptionField.TITLE', 'Title'), |
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40 | 'callback' => function($record, $column, $grid) { |
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41 | return TextField::create($column); |
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42 | } |
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43 | ), |
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44 | 'Value' => array( |
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45 | 'title' => _t('EditableMultipleOptionField.VALUE', 'Value'), |
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46 | 'callback' => function($record, $column, $grid) { |
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47 | return TextField::create($column); |
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48 | } |
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49 | ), |
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50 | 'Default' => array( |
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51 | 'title' => _t('EditableMultipleOptionField.DEFAULT', 'Selected by default?'), |
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52 | 'callback' => function($record, $column, $grid) { |
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53 | return CheckboxField::create($column); |
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54 | } |
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55 | ) |
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56 | )); |
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57 | |||
58 | $optionsConfig = GridFieldConfig::create() |
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59 | ->addComponents( |
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60 | new GridFieldToolbarHeader(), |
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61 | new GridFieldTitleHeader(), |
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62 | new GridFieldOrderableRows('Sort'), |
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63 | $editableColumns, |
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64 | new GridFieldButtonRow(), |
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65 | new GridFieldAddNewInlineButton(), |
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66 | new GridFieldDeleteAction() |
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67 | ); |
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68 | |||
69 | $optionsGrid = GridField::create( |
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70 | 'Options', |
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71 | _t('EditableFormField.CUSTOMOPTIONS', 'Options'), |
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72 | $this->Options(), |
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73 | $optionsConfig |
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74 | ); |
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75 | |||
76 | $fields->insertAfter(new Tab('Options', _t('EditableMultipleOptionField.OPTIONSTAB','Options')), 'Main'); |
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77 | $fields->addFieldToTab('Root.Options', $optionsGrid); |
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78 | |||
79 | return $fields; |
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80 | } |
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81 | |||
82 | /** |
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83 | * Publishing Versioning support. |
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84 | * |
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85 | * When publishing it needs to handle copying across / publishing |
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86 | * each of the individual field options |
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87 | * |
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88 | * @return void |
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89 | */ |
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90 | public function doPublish($fromStage, $toStage, $createNewVersion = false) { |
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91 | $live = Versioned::get_by_stage("EditableOption", "Live", "\"EditableOption\".\"ParentID\" = $this->ID"); |
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92 | |||
93 | if($live) { |
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94 | foreach($live as $option) { |
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95 | $option->delete(); |
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96 | } |
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97 | } |
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98 | |||
99 | if($this->Options()) { |
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100 | foreach($this->Options() as $option) { |
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101 | $option->publish($fromStage, $toStage, $createNewVersion); |
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102 | } |
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103 | } |
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104 | |||
105 | parent::doPublish($fromStage, $toStage, $createNewVersion); |
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106 | } |
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107 | |||
108 | /** |
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109 | * Unpublishing Versioning support |
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110 | * |
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111 | * When unpublishing the field it has to remove all options attached |
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112 | * |
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113 | * @return void |
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114 | */ |
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115 | public function doDeleteFromStage($stage) { |
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116 | // Remove options |
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117 | $options = Versioned::get_by_stage('EditableOption', $stage) |
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118 | ->filter('ParentID', $this->ID); |
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119 | foreach($options as $option) { |
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120 | $option->deleteFromStage($stage); |
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121 | } |
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122 | |||
123 | parent::doDeleteFromStage($stage); |
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124 | } |
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125 | |||
126 | /** |
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127 | * Deletes all the options attached to this field before deleting the |
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128 | * field. Keeps stray options from floating around |
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129 | * |
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130 | * @return void |
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131 | */ |
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132 | public function delete() { |
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133 | $options = $this->Options(); |
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134 | |||
135 | if($options) { |
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136 | foreach($options as $option) { |
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137 | $option->delete(); |
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138 | } |
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139 | } |
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140 | |||
141 | parent::delete(); |
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142 | } |
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143 | |||
144 | /** |
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145 | * Duplicate a pages content. We need to make sure all the fields attached |
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146 | * to that page go with it |
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147 | * |
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148 | * @return DataObject |
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149 | */ |
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150 | public function duplicate($doWrite = true) { |
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151 | $clonedNode = parent::duplicate(); |
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152 | |||
153 | View Code Duplication | foreach($this->Options() as $field) { |
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154 | $newField = $field->duplicate(false); |
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155 | $newField->ParentID = $clonedNode->ID; |
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156 | $newField->Version = 0; |
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157 | $newField->write(); |
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158 | } |
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159 | |||
160 | return $clonedNode; |
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161 | } |
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162 | |||
163 | /** |
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164 | * Return whether or not this field has addable options such as a |
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165 | * {@link EditableDropdownField} or {@link EditableRadioField} |
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166 | * |
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167 | * @return bool |
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168 | */ |
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169 | public function getHasAddableOptions() { |
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170 | return true; |
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171 | } |
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172 | |||
173 | /** |
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174 | * Gets map of field options suitable for use in a form |
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175 | * |
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176 | * @return array |
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177 | */ |
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178 | protected function getOptionsMap() { |
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186 | |||
187 | /** |
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188 | * Returns all default options |
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189 | * |
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190 | * @return SS_List |
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191 | */ |
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192 | protected function getDefaultOptions() { |
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195 | } |
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196 |
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.