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 | { |
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| 18 | |||
| 19 | /** |
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| 20 | * Define this field as abstract (not inherited) |
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| 21 | * |
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| 22 | * @config |
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| 23 | * @var bool |
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| 24 | */ |
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| 25 | private static $abstract = true; |
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| 26 | |||
| 27 | private static $has_many = array( |
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| 28 | "Options" => "EditableOption" |
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| 29 | ); |
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| 30 | |||
| 31 | /** |
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| 32 | * @return FieldList |
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| 33 | */ |
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| 34 | 3 | public function getCMSFields() |
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| 85 | |||
| 86 | /** |
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| 87 | * Publishing Versioning support. |
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| 88 | * |
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| 89 | * When publishing it needs to handle copying across / publishing |
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| 90 | * each of the individual field options |
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| 91 | * |
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| 92 | * @param string $fromStage |
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| 93 | * @param string $toStage |
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| 94 | * @param bool $createNewVersion |
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| 95 | */ |
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| 96 | 2 | public function doPublish($fromStage, $toStage, $createNewVersion = false) |
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| 101 | |||
| 102 | |||
| 103 | /** |
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| 104 | * Publish list options |
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| 105 | * |
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| 106 | * @param string $fromStage |
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| 107 | * @param string $toStage |
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| 108 | * @param bool $createNewVersion |
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| 109 | */ |
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| 110 | 2 | View Code Duplication | protected function publishOptions($fromStage, $toStage, $createNewVersion) |
| 111 | { |
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| 112 | 2 | $seenIDs = array(); |
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| 113 | |||
| 114 | // Publish all options |
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| 115 | 2 | foreach ($this->Options() as $option) { |
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| 116 | 2 | $seenIDs[] = $option->ID; |
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| 117 | 2 | $option->publish($fromStage, $toStage, $createNewVersion); |
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| 118 | 2 | } |
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| 119 | |||
| 120 | // remove any orphans from the "fromStage" |
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| 121 | 2 | $options = Versioned::get_by_stage('EditableOption', $toStage) |
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| 122 | 2 | ->filter('ParentID', $this->ID); |
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| 123 | |||
| 124 | 2 | if (!empty($seenIDs)) { |
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| 125 | 2 | $options = $options->exclude('ID', $seenIDs); |
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| 126 | 2 | } |
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| 127 | |||
| 128 | 2 | foreach ($options as $rule) { |
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| 129 | $rule->deleteFromStage($toStage); |
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| 130 | 2 | } |
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| 131 | 2 | } |
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| 132 | |||
| 133 | /** |
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| 134 | * Unpublishing Versioning support |
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| 135 | * |
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| 136 | * When unpublishing the field it has to remove all options attached |
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| 137 | * |
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| 138 | * @return void |
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| 139 | */ |
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| 140 | public function doDeleteFromStage($stage) |
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| 151 | |||
| 152 | /** |
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| 153 | * Deletes all the options attached to this field before deleting the |
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| 154 | * field. Keeps stray options from floating around |
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| 155 | * |
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| 156 | * @return void |
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| 157 | */ |
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| 158 | public function delete() |
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| 170 | |||
| 171 | /** |
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| 172 | * Duplicate a pages content. We need to make sure all the fields attached |
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| 173 | * to that page go with it |
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| 174 | * |
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| 175 | * @return DataObject |
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| 176 | */ |
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| 177 | 1 | public function duplicate($doWrite = true) |
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| 190 | |||
| 191 | /** |
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| 192 | * Return whether or not this field has addable options such as a |
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| 193 | * {@link EditableDropdownField} or {@link EditableRadioField} |
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| 194 | * |
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| 195 | * @return bool |
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| 196 | */ |
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| 197 | public function getHasAddableOptions() |
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| 201 | |||
| 202 | /** |
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| 203 | * Gets map of field options suitable for use in a form |
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| 204 | * |
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| 205 | * @return array |
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| 206 | */ |
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| 207 | 3 | protected function getOptionsMap() |
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| 216 | |||
| 217 | /** |
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| 218 | * Returns all default options |
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| 219 | * |
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| 220 | * @return SS_List |
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| 221 | */ |
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| 222 | 3 | protected function getDefaultOptions() |
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| 226 | } |
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| 227 |
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.