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 ProjectRoleHelper 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 ProjectRoleHelper, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 22 | class ProjectRoleHelper extends Base |
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| 23 | { |
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| 24 | /** |
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| 25 | * Get project role for the current user. |
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| 26 | * |
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| 27 | * @param int $project_id |
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| 28 | * |
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| 29 | * @return string |
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| 30 | */ |
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| 31 | public function getProjectUserRole($project_id) |
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| 35 | |||
| 36 | /** |
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| 37 | * Return true if the task can be moved by the logged user. |
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| 38 | * |
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| 39 | * @param array $task |
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| 40 | * |
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| 41 | * @return bool |
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| 42 | */ |
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| 43 | public function isDraggable(array &$task) |
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| 51 | |||
| 52 | /** |
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| 53 | * Return true is the column is sortable. |
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| 54 | * |
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| 55 | * @param int $project_id |
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| 56 | * @param int $column_id |
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| 57 | * |
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| 58 | * @return bool |
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| 59 | */ |
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| 60 | public function isSortableColumn($project_id, $column_id) |
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| 78 | |||
| 79 | /** |
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| 80 | * Check if the user can move a task. |
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| 81 | * |
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| 82 | * @param int $project_id |
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| 83 | * @param int $src_column_id |
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| 84 | * @param int $dst_column_id |
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| 85 | * |
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| 86 | * @return bool|int |
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| 87 | */ |
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| 88 | public function canMoveTask($project_id, $src_column_id, $dst_column_id) |
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| 114 | |||
| 115 | /** |
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| 116 | * Return true if the user can create a task for the given column. |
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| 117 | * |
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| 118 | * @param int $project_id |
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| 119 | * @param int $column_id |
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| 120 | * |
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| 121 | * @return bool |
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| 122 | */ |
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| 123 | View Code Duplication | public function canCreateTaskInColumn($project_id, $column_id) |
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| 135 | |||
| 136 | /** |
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| 137 | * Return true if the user can create a task for the given column. |
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| 138 | * |
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| 139 | * @param int $project_id |
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| 140 | * @param int $column_id |
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| 141 | * |
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| 142 | * @return bool |
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| 143 | */ |
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| 144 | View Code Duplication | public function canChangeTaskStatusInColumn($project_id, $column_id) |
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| 156 | |||
| 157 | /** |
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| 158 | * Return true if the user can remove a task. |
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| 159 | * |
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| 160 | * Regular users can't remove tasks from other people |
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| 161 | * |
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| 162 | * @public |
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| 163 | * |
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| 164 | * @param array $task |
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| 165 | * |
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| 166 | * @return bool |
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| 167 | */ |
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| 168 | public function canRemoveTask(array $task) |
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| 180 | |||
| 181 | /** |
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| 182 | * Check project access. |
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| 183 | * |
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| 184 | * @param string $controller |
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| 185 | * @param string $action |
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| 186 | * @param int $project_id |
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| 187 | * |
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| 188 | * @return bool |
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| 189 | */ |
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| 190 | public function checkProjectAccess($controller, $action, $project_id) |
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| 214 | |||
| 215 | /** |
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| 216 | * Check authorization for a custom project role to change the task status. |
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| 217 | * |
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| 218 | * @param int $project_id |
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| 219 | * @param int $column_id |
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| 220 | * @param string $role |
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| 221 | * |
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| 222 | * @return bool |
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| 223 | */ |
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| 224 | View Code Duplication | protected function isAllowedToChangeTaskStatus($project_id, $column_id, $role) |
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| 248 | |||
| 249 | /** |
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| 250 | * Check authorization for a custom project role to create a task. |
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| 251 | * |
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| 252 | * @param int $project_id |
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| 253 | * @param int $column_id |
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| 254 | * @param string $role |
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| 255 | * |
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| 256 | * @return bool |
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| 257 | */ |
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| 258 | View Code Duplication | protected function isAllowedToCreateTask($project_id, $column_id, $role) |
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| 282 | |||
| 283 | /** |
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| 284 | * Check if the role can move task in the given project. |
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| 285 | * |
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| 286 | * @param int $project_id |
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| 287 | * @param string $role |
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| 288 | * |
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| 289 | * @return bool |
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| 290 | */ |
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| 291 | protected function isAllowedToMoveTask($project_id, $role) |
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| 303 | } |
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| 304 |
Since your code implements the magic getter
_get, this function will be called for any read access on an undefined variable. You can add the@propertyannotation to your class or interface to document the existence of this variable.If the property has read access only, you can use the @property-read annotation instead.
Of course, you may also just have mistyped another name, in which case you should fix the error.
See also the PhpDoc documentation for @property.