Complex classes like Issue 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 Issue, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 22 | class Issue extends FormAbstract |
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| 23 | { |
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| 24 | /** |
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| 25 | * An instance of project model. |
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| 26 | * |
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| 27 | * @var Model\Project |
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| 28 | */ |
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| 29 | protected $project; |
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| 30 | |||
| 31 | /** |
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| 32 | * Collection of all tags. |
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| 33 | * |
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| 34 | * @var \Illuminate\Database\Eloquent\Collection |
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| 35 | */ |
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| 36 | protected $tags = null; |
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| 37 | |||
| 38 | /** |
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| 39 | * Is issue readonly. |
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| 40 | * |
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| 41 | * @var bool |
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| 42 | */ |
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| 43 | protected $readOnly = false; |
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| 44 | |||
| 45 | /** |
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| 46 | * @param string $type |
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| 47 | * |
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| 48 | * @return \Illuminate\Database\Eloquent\Collection|null |
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| 49 | */ |
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| 50 | 9 | protected function getTags($type) |
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| 58 | |||
| 59 | /** |
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| 60 | * Returns an array of tags to be used as the selectable options. |
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| 61 | * |
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| 62 | * @param string $type |
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| 63 | * |
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| 64 | * @return array |
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| 65 | */ |
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| 66 | 9 | protected function getSelectableTags($type = null) |
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| 67 | { |
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| 68 | 9 | $currentTag = $this->getIssueTag($type); |
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| 69 | |||
| 70 | 9 | if ($currentTag->id && (!$currentTag->canView() || $this->readOnly)) { |
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| 71 | 1 | $tags = [$currentTag]; |
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| 72 | 9 | } elseif ($this->readOnly) { |
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| 73 | 1 | $tags = []; |
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| 74 | } else { |
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| 75 | 9 | $tags = $this->getTags($type); |
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| 76 | } |
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| 77 | |||
| 78 | 9 | return $this->generateTagRadioButtonOptions($tags, $type); |
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| 79 | } |
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| 80 | |||
| 81 | /** |
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| 82 | * Get issue tag for specific type/group. |
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| 83 | * |
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| 84 | * @param string $type |
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| 85 | * |
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| 86 | * @return Model\Tag |
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| 87 | */ |
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| 88 | 9 | protected function getIssueTag($type) |
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| 89 | { |
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| 90 | 9 | if ($this->isEditing()) { |
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| 91 | 4 | $groupId = $this->getTags($type)->first()->parent_id; |
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| 92 | 4 | $selectedTag = $this->getModel()->tags->where('parent_id', $groupId); |
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| 93 | |||
| 94 | 4 | if ($selectedTag->count() > 0) { |
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| 95 | 1 | return $selectedTag->last(); |
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| 96 | } |
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| 97 | } |
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| 98 | |||
| 99 | 9 | return new Model\Tag(); |
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| 100 | } |
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| 101 | |||
| 102 | /** |
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| 103 | * @param array $params |
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| 104 | * |
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| 105 | * @return void |
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| 106 | */ |
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| 107 | 8 | public function setup(array $params) |
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| 108 | { |
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| 109 | 8 | $this->project = $params['project']; |
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| 110 | 8 | if (!empty($params['issue'])) { |
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| 111 | 4 | $this->editingModel($params['issue']); |
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| 112 | 4 | $this->readOnly = $this->getModel()->hasReadOnlyTag($this->getLoggedUser()); |
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| 113 | } |
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| 114 | 8 | } |
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| 115 | |||
| 116 | /** |
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| 117 | * @return array |
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| 118 | */ |
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| 119 | 6 | public function actions() |
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| 120 | { |
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| 121 | 6 | $actions = []; |
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| 122 | |||
| 123 | // Check if issue is in readonly tag |
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| 124 | 6 | if (!$this->readOnly) { |
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| 125 | $actions = [ |
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| 126 | 6 | 'submit' => $this->isEditing() ? 'update_issue' : 'create_issue', |
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| 127 | ]; |
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| 128 | |||
| 129 | 6 | if ($this->isEditing() && $this->getLoggedUser()->permission(Model\Permission::PERM_ISSUE_MODIFY)) { |
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| 130 | 2 | $actions['delete'] = [ |
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| 131 | 2 | 'type' => 'danger_submit', |
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| 132 | 2 | 'label' => trans('tinyissue.delete_something', ['name' => '#' . $this->getModel()->id]), |
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| 133 | 2 | 'class' => 'close-issue', |
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| 134 | 2 | 'name' => 'delete-issue', |
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| 135 | 2 | 'data-message' => trans('tinyissue.delete_issue_confirm'), |
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| 136 | ]; |
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| 137 | } |
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| 138 | } |
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| 139 | |||
| 140 | 6 | return $actions; |
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| 141 | } |
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| 142 | |||
| 143 | /** |
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| 144 | * @return array |
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| 145 | */ |
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| 146 | 8 | public function fields() |
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| 147 | { |
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| 148 | 8 | $issueModify = $this->getLoggedUser()->permission('issue-modify'); |
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| 149 | |||
| 150 | 8 | $fields = []; |
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| 151 | 8 | $fields += $this->readOnlyMessage(); |
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| 152 | 8 | $fields += $this->fieldTitle(); |
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| 153 | 8 | $fields += $this->fieldBody(); |
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| 154 | 8 | $fields += $this->fieldTag('type'); |
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| 155 | |||
| 156 | // Only on creating new issue |
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| 157 | 8 | if (!$this->isEditing()) { |
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| 158 | 5 | $fields += $this->fieldUpload(); |
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| 159 | } |
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| 160 | |||
| 161 | // Show fields for users with issue modify permission |
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| 162 | 8 | if ($issueModify) { |
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| 163 | 8 | $fields += $this->issueModifyFields(); |
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| 164 | } |
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| 165 | |||
| 166 | 8 | return $fields; |
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| 167 | } |
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| 168 | |||
| 169 | /** |
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| 170 | * Return a list of fields for users with issue modify permission. |
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| 171 | * |
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| 172 | * @return array |
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| 173 | */ |
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| 174 | 8 | protected function issueModifyFields() |
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| 175 | { |
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| 176 | 8 | $fields = []; |
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| 177 | |||
| 178 | 8 | $fields['internal_status'] = [ |
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| 179 | 'type' => 'legend', |
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| 180 | ]; |
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| 181 | |||
| 182 | // Status tags |
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| 183 | 8 | $fields += $this->fieldTag('status'); |
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| 184 | |||
| 185 | // Assign users |
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| 186 | 8 | $fields += $this->fieldAssignedTo(); |
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| 187 | |||
| 188 | // Quotes |
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| 189 | 8 | $fields += $this->fieldTimeQuote(); |
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| 190 | |||
| 191 | // Resolution tags |
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| 192 | 8 | $fields += $this->fieldResolutionTags(); |
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| 193 | |||
| 194 | 8 | return $fields; |
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| 195 | } |
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| 196 | |||
| 197 | /** |
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| 198 | * Returns message about read only issue. |
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| 199 | * |
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| 200 | * @return array |
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| 201 | */ |
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| 202 | 8 | protected function readOnlyMessage() |
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| 203 | { |
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| 204 | 8 | $field = []; |
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| 205 | |||
| 206 | 8 | if ($this->readOnly) { |
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| 207 | $field = [ |
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| 208 | 'readonly' => [ |
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| 209 | 1 | 'type' => 'plaintext', |
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| 210 | 1 | 'label' => ' ', |
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| 211 | 1 | 'value' => '<div class="alert alert-warning">' . trans('tinyissue.readonly_issue_message') . '</div>', |
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| 212 | ], |
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| 213 | ]; |
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| 214 | } |
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| 215 | |||
| 216 | 8 | return $field; |
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| 217 | } |
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| 218 | |||
| 219 | /** |
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| 220 | * Returns title field. |
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| 221 | * |
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| 222 | * @return array |
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| 223 | */ |
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| 224 | 9 | protected function fieldTitle() |
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| 233 | |||
| 234 | /** |
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| 235 | * Returns body field. |
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| 236 | * |
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| 237 | * @return array |
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| 238 | */ |
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| 239 | 9 | protected function fieldBody() |
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| 240 | { |
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| 248 | |||
| 249 | /** |
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| 250 | * Returns tag field. |
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| 251 | * |
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| 252 | * @param string $type |
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| 253 | * @param array $prepend |
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| 254 | * |
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| 255 | * @return array |
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| 256 | */ |
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| 257 | 9 | protected function fieldTag($type, array $prepend = []) |
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| 271 | |||
| 272 | /** |
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| 273 | * Returns tags field. |
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| 274 | * |
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| 275 | * @return array |
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| 276 | */ |
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| 277 | 8 | protected function fieldResolutionTags() |
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| 288 | |||
| 289 | /** |
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| 290 | * Returns assigned to field. |
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| 291 | * |
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| 292 | * @return array |
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| 293 | */ |
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| 294 | 8 | protected function fieldAssignedTo() |
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| 305 | |||
| 306 | /** |
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| 307 | * Returns upload field. |
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| 308 | * |
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| 309 | * @return array |
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| 310 | */ |
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| 311 | 6 | protected function fieldUpload() |
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| 319 | |||
| 320 | /** |
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| 321 | * Returns time quote field. |
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| 322 | * |
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| 323 | * @return array |
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| 324 | */ |
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| 325 | 8 | protected function fieldTimeQuote() |
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| 377 | |||
| 378 | /** |
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| 379 | * @return array |
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| 380 | */ |
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| 381 | 7 | public function rules() |
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| 390 | |||
| 391 | /** |
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| 392 | * @return string |
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| 393 | */ |
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| 394 | public function getRedirectUrl() |
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| 402 | |||
| 403 | /** |
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| 404 | * Extract number of hours, or minutes, or seconds from a quote. |
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| 405 | * |
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| 406 | * @param string $part |
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| 407 | * |
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| 408 | * @return float|int |
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| 409 | */ |
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| 410 | 8 | protected function extractQuoteValue($part) |
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| 425 | |||
| 426 | /** |
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| 427 | * Returns an array structured for radio button element. |
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| 428 | * |
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| 429 | * @param Collection|array $tags |
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| 430 | * @param string $type |
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| 431 | * |
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| 432 | * @return array |
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| 433 | */ |
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| 434 | 9 | protected function generateTagRadioButtonOptions($tags, $type) |
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| 451 | } |
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| 452 |
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.