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 |
||
| 39 | trait QueryTrait |
||
| 40 | { |
||
| 41 | /** |
||
| 42 | * Returns collection of active projects. |
||
| 43 | * |
||
| 44 | * @return Eloquent\Collection |
||
| 45 | */ |
||
| 46 | public static function activeProjects() |
||
| 47 | { |
||
| 48 | return static::where('status', '=', Project::STATUS_OPEN) |
||
| 49 | ->orderBy('name', 'ASC') |
||
| 50 | ->get(); |
||
| 51 | } |
||
| 52 | |||
| 53 | /** |
||
| 54 | * Returns collection of public projects. |
||
| 55 | * |
||
| 56 | * @return Eloquent\Collection |
||
| 57 | */ |
||
| 58 | public function publicProjects() |
||
| 64 | |||
| 65 | /** |
||
| 66 | * Returns all users that are not assigned in the current project. |
||
| 67 | * |
||
| 68 | * @return array |
||
| 69 | */ |
||
| 70 | 1 | public function usersNotIn() |
|
| 71 | { |
||
| 72 | 1 | if ($this->id > 0) { |
|
| 73 | $userIds = $this->users()->lists('user_id')->all(); |
||
| 74 | $users = User::where('deleted', '=', User::NOT_DELETED_USERS)->whereNotIn('id', $userIds)->get(); |
||
| 75 | } else { |
||
| 76 | 1 | $users = User::where('deleted', '=', User::NOT_DELETED_USERS)->get(); |
|
| 77 | } |
||
| 78 | |||
| 79 | 1 | return $users->lists('fullname', 'id')->all(); |
|
| 80 | } |
||
| 81 | |||
| 82 | /** |
||
| 83 | * Fetch and filter issues in the project. |
||
| 84 | * |
||
| 85 | * @param int $status |
||
| 86 | * @param array $filter |
||
| 87 | * |
||
| 88 | * @return \Illuminate\Database\Eloquent\Collection |
||
| 89 | */ |
||
| 90 | 2 | public function listIssues($status = Project\Issue::STATUS_OPEN, array $filter = []) |
|
| 91 | { |
||
| 92 | 2 | $sortOrder = array_get($filter, 'sort.sortorder', 'desc'); |
|
| 93 | 2 | $sortBy = array_get($filter, 'sort.sortby', null); |
|
| 94 | |||
| 95 | 2 | $query = $this->issues() |
|
| 96 | 2 | ->with('countComments', 'user', 'updatedBy', 'tags', 'tags.parent') |
|
| 97 | 2 | ->with([ |
|
| 98 | 'tags' => function (Relation $query) use ($sortOrder) { |
||
| 99 | 2 | $query->orderBy('name', $sortOrder); |
|
| 100 | 2 | }, |
|
| 101 | ]) |
||
| 102 | 2 | ->where('status', '=', $status); |
|
| 103 | |||
| 104 | // Filter issues |
||
| 105 | 2 | $this->filterAssignTo($query, array_get($filter, 'assignto')); |
|
| 106 | 2 | $this->filterTitleOrBody($query, array_get($filter, 'keyword')); |
|
| 107 | 2 | $this->filterTags($query, array_get($filter, 'tag_status')); |
|
| 108 | 2 | $this->filterTags($query, array_get($filter, 'tag_type')); |
|
| 109 | 2 | $this->filterCreatedBy($query, array_get($filter, 'created_by'), $this->isPrivateInternal()); |
|
| 110 | |||
| 111 | // Sort |
||
| 112 | 2 | if ($sortBy == 'updated') { |
|
| 113 | $this->sortByUpdated($query, $sortOrder); |
||
| 114 | 2 | } elseif (($tagGroup = substr($sortBy, strlen('tag:'))) > 0) { |
|
| 115 | return $this->sortByTag($query, $tagGroup, $sortOrder); |
||
| 116 | } |
||
| 117 | |||
| 118 | 2 | return $query->get(); |
|
| 119 | } |
||
| 120 | |||
| 121 | /** |
||
| 122 | * Fetch issues assigned to a user. |
||
| 123 | * |
||
| 124 | * @param User $user |
||
| 125 | * |
||
| 126 | * @return \Illuminate\Database\Eloquent\Collection |
||
| 127 | */ |
||
| 128 | 1 | public function listAssignedOrCreatedIssues(User $user) |
|
| 129 | { |
||
| 130 | 1 | $assignedOrCreate = $user->isUser() ? 'created_by' : 'assigned_to'; |
|
| 131 | |||
| 132 | 1 | return $this->issues() |
|
| 133 | 1 | ->with('countComments', 'user', 'updatedBy') |
|
| 134 | 1 | ->where('status', '=', Project\Issue::STATUS_OPEN) |
|
| 135 | 1 | ->where($assignedOrCreate, '=', $user->id) |
|
| 136 | 1 | ->orderBy('updated_at', 'DESC') |
|
| 137 | 1 | ->get(); |
|
| 138 | } |
||
| 139 | |||
| 140 | /** |
||
| 141 | * Returns projects with issues details eager loaded. |
||
| 142 | * |
||
| 143 | * @param int $status |
||
| 144 | * @param int $private |
||
| 145 | * |
||
| 146 | * @return Relations\HasMany |
||
| 147 | */ |
||
| 148 | 4 | public function projectsWidthIssues($status = Project::STATUS_OPEN, $private = Project::PRIVATE_NO) |
|
| 173 | |||
| 174 | /** |
||
| 175 | * Returns collection of tags for Kanban view. |
||
| 176 | * |
||
| 177 | * @param User $user |
||
| 178 | * |
||
| 179 | * @return mixed |
||
| 180 | */ |
||
| 181 | public function getKanbanTagsForUser(User $user) |
||
| 192 | |||
| 193 | /** |
||
| 194 | * Returns collection of issues grouped by tags. |
||
| 195 | * |
||
| 196 | * @param $tagIds |
||
| 197 | * |
||
| 198 | * @return mixed |
||
| 199 | */ |
||
| 200 | public function issuesGroupByTags($tagIds) |
||
| 215 | |||
| 216 | /** |
||
| 217 | * Returns users assigned to the project that can fix issues (with edit permission). |
||
| 218 | * |
||
| 219 | * @return Relations\BelongsToMany |
||
| 220 | */ |
||
| 221 | 10 | public function usersCanFixIssue() |
|
| 225 | } |
||
| 226 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.