| Total Complexity | 59 | 
| Total Lines | 343 | 
| Duplicated Lines | 0 % | 
| Changes | 4 | ||
| Bugs | 2 | Features | 0 | 
Complex classes like AbstractManager 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.
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 AbstractManager, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 27 | abstract class AbstractManager  | 
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| 28 | { | 
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| 29 | use SavingFields;  | 
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| 30 | use HasDetails;  | 
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                         | 
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| 31 | use HasDetailSections;  | 
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| 32 | use ManagesMedia;  | 
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| 33 | use ManagesPagebuilder;  | 
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| 34 | use TranslatableCommand;  | 
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| 35 | use ManagesAssistants;  | 
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| 36 | use ManagesFragments;  | 
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| 37 | |||
| 38 | protected $translation_columns = [];  | 
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| 39 | |||
| 40 | protected $model;  | 
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| 41 | |||
| 42 | /** @var Register */  | 
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| 43 | protected $registration;  | 
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| 44 | |||
| 45 | protected $pageCount = 20;  | 
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| 46 | protected $paginated = true;  | 
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| 47 | protected static $bootedTraitMethods = [];  | 
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| 48 | |||
| 49 | final public function __construct(Registration $registration)  | 
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| 50 |     { | 
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| 51 | $this->registration = $registration;  | 
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| 52 | |||
| 53 | // Upon instantiation, a general model is set that doesn't point to a persisted record.  | 
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| 54 | $this->manage(app($this->registration->model()));  | 
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| 55 | |||
| 56 | // Check if key and model are present since the model should be set by the manager itself  | 
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| 57 | $this->validateConstraints();  | 
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| 58 | |||
| 59 | static::bootTraitMethods();  | 
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| 60 | }  | 
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| 61 | |||
| 62 | public function managerKey(): string  | 
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| 63 |     { | 
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| 64 | return $this->registration->key();  | 
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| 65 | }  | 
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| 66 | |||
| 67 | public function manage($model): Manager  | 
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| 68 |     { | 
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| 69 | $this->model = $model;  | 
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| 70 | |||
| 71 | return $this;  | 
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| 72 | }  | 
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| 73 | |||
| 74 | public function isManualSortable(): bool  | 
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| 75 |     { | 
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| 76 | return (isset($this->useManualSorting) && $this->useManualSorting && method_exists($this->modelInstance(), 'scopeSortedManually'));  | 
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| 77 | }  | 
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| 78 | |||
| 79 | public function saveCreateFields(Request $request): void  | 
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| 80 |     { | 
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| 81 |         if($this->isManualSortable() && !$request->has('order')) { | 
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| 82 |             $this->model->order = $this->modelInstance()::orderBy('order', 'desc')->first()->order + 1; | 
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| 83 | }  | 
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| 84 | |||
| 85 | $this->saveFields($request, $this->createFields());  | 
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| 86 | }  | 
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| 87 | |||
| 88 | public function findManaged($id): Manager  | 
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| 89 |     { | 
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| 90 |         $modelInstance = $this->modelInstance()::where('id', $id)->withoutGlobalScopes()->first(); | 
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| 91 | |||
| 92 | return (new static($this->registration))->manage($modelInstance);  | 
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| 93 | }  | 
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| 94 | |||
| 95 | public function indexCollection()  | 
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| 96 |     { | 
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| 97 | $builder = ($this->modelInstance())->query();  | 
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| 98 | |||
| 99 | $this->filters()->apply($builder);  | 
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| 100 | |||
| 101 | $builder = $this->indexBuilder($builder);  | 
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| 102 | |||
| 103 | $builder = $this->indexSorting($builder);  | 
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| 104 | |||
| 105 |         if ($this->paginated) { | 
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| 106 | return $this->indexPagination($builder);  | 
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| 107 | }  | 
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| 108 | |||
| 109 |         return $builder->get()->map(function ($model) { | 
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| 110 | return (new static($this->registration))->manage($model);  | 
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| 111 | });  | 
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| 112 | }  | 
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| 113 | |||
| 114 | protected function indexBuilder(Builder $builder): Builder  | 
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| 115 |     { | 
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| 116 | return $builder;  | 
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| 117 | }  | 
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| 118 | |||
| 119 | protected function indexSorting(Builder $builder): Builder  | 
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| 120 |     { | 
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| 121 |         if($this->isManualSortable()) { | 
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| 122 | $builder->sortedManually();  | 
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| 123 | }  | 
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| 124 | |||
| 125 |         if ($this->isAssistedBy('publish') && Schema::hasColumn($this->modelInstance()->getTable(), 'published_at')) { | 
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| 126 |             $builder->orderBy('published_at', 'DESC'); | 
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| 127 | }  | 
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| 128 | |||
| 129 | // if model has no timestamps, updated_at doesn't exist  | 
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| 130 |         if ($this->modelInstance()->timestamps) { | 
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| 131 |             $builder->orderBy('updated_at', 'DESC'); | 
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| 132 | }  | 
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| 133 | |||
| 134 | return $builder;  | 
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| 135 | }  | 
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| 136 | |||
| 137 | protected function indexPagination($builder): Paginator  | 
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| 138 |     { | 
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| 139 | $paginator = $builder->paginate($this->pageCount);  | 
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| 140 | |||
| 141 |         $modifiedCollection = $builder->paginate($this->pageCount)->getCollection()->transform(function ($model) { | 
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| 142 | return (new static($this->registration))->manage($model);  | 
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| 143 | });  | 
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| 144 | |||
| 145 | return $paginator->setCollection($modifiedCollection);  | 
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| 146 | }  | 
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| 147 | |||
| 148 | public function indexView(): string  | 
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| 149 |     { | 
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| 150 | return 'chief::back.managers._partials._rowitems';  | 
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| 151 | }  | 
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| 152 | |||
| 153 | public function indexViewData(): array  | 
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| 154 |     { | 
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| 155 | return [];  | 
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| 156 | }  | 
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| 157 | |||
| 158 | public function modelInstance(): ManagedModel  | 
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| 159 |     { | 
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| 160 | $class = $this->registration->model();  | 
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| 161 | |||
| 162 | return new $class();  | 
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| 163 | }  | 
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| 164 | |||
| 165 | public function existingModel(): ManagedModel  | 
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| 166 |     { | 
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| 167 |         if (!$this->hasExistingModel()) { | 
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| 168 |             throw new NonExistingRecord('Model does not exist yet but is expected.'); | 
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| 169 | }  | 
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| 170 | |||
| 171 | return $this->model;  | 
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| 172 | }  | 
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| 173 | |||
| 174 | public function hasExistingModel(): bool  | 
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| 175 |     { | 
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| 176 | return ($this->model && $this->model->exists);  | 
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| 177 | }  | 
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| 178 | |||
| 179 | /**  | 
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| 180 | * Determine which actions should be available for this  | 
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| 181 | * manager and their respective routed urls.  | 
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| 182 | *  | 
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| 183 | * @param $verb  | 
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| 184 | * @return null|string  | 
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| 185 | * @throws NonExistingRecord  | 
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| 186 | */  | 
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| 187 | public function route($verb): ?string  | 
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| 188 |     { | 
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| 189 | $routes = [  | 
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| 190 |             'index'  => route('chief.back.managers.index', [$this->registration->key()]), | 
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| 191 |             'create' => route('chief.back.managers.create', [$this->registration->key()]), | 
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| 192 |             'store'  => route('chief.back.managers.store', [$this->registration->key()]), | 
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| 193 | ];  | 
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| 194 | |||
| 195 |         if (array_key_exists($verb, $routes)) { | 
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| 196 | return $routes[$verb] ?? null;  | 
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| 197 | }  | 
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| 198 | |||
| 199 | //These routes expect the model to be persisted in the database  | 
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| 200 | $modelRoutes = [  | 
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| 201 |             'edit'   => route('chief.back.managers.edit', [$this->registration->key(), $this->existingModel()->id]), | 
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| 202 |             'update' => route('chief.back.managers.update', [$this->registration->key(), $this->existingModel()->id]), | 
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| 203 |             'delete' => route('chief.back.managers.delete', [$this->registration->key(), $this->existingModel()->id]), | 
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| 204 |             'upload' => route('chief.back.managers.media.upload', [ | 
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| 205 | $this->registration->key(),  | 
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| 206 | $this->existingModel()->id,  | 
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| 207 | ]),  | 
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| 208 | ];  | 
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| 209 | |||
| 210 | return $modelRoutes[$verb] ?? null;  | 
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| 211 | }  | 
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| 212 | |||
| 213 | public function can($verb): bool  | 
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| 214 |     { | 
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| 215 |         foreach (static::$bootedTraitMethods['can'] as $method) { | 
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| 216 |             if (!method_exists($this, $method)) { | 
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| 217 | continue;  | 
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| 218 | }  | 
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| 219 | $this->$method($verb);  | 
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| 220 | }  | 
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| 221 | |||
| 222 | return !is_null($this->route($verb));  | 
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| 223 | }  | 
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| 224 | |||
| 225 | public function guard($verb): Manager  | 
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| 226 |     { | 
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| 227 |         if (!$this->can($verb)) { | 
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| 228 | NotAllowedManagerRoute::notAllowedVerb($verb, $this);  | 
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| 229 | }  | 
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| 230 | |||
| 231 | return $this;  | 
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| 232 | }  | 
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| 233 | |||
| 234 | public function fields(): Fields  | 
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| 235 |     { | 
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| 236 | return new Fields();  | 
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| 237 | }  | 
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| 238 | |||
| 239 | /**  | 
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| 240 | * Enrich the manager fields with any of the assistant specified fields  | 
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| 241 | *  | 
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| 242 | * @return Fields  | 
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| 243 | * @throws \Exception  | 
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| 244 | */  | 
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| 245 | public function fieldsWithAssistantFields(): Fields  | 
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| 258 | }  | 
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| 259 | |||
| 260 | public function createFields(): Fields  | 
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| 261 |     { | 
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| 262 | $fields = $this->fieldsWithAssistantFields();  | 
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| 263 | |||
| 264 |         if($this->isManualSortable() && !$fields->offsetExists('order')) { | 
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| 265 |             $fields = $fields->add(NumberField::make('order')); | 
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| 266 | }  | 
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| 267 | trap($fields);  | 
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| 268 | return $fields;  | 
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| 269 | }  | 
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| 270 | |||
| 271 | public function editFields(): Fields  | 
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| 272 |     { | 
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| 273 |         return $this->fieldsWithAssistantFields()->map(function (Field $field) { | 
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| 274 | return $field->model($this->model);  | 
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| 275 | });  | 
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| 276 | }  | 
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| 277 | |||
| 278 | public function createView(): string  | 
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| 279 |     { | 
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| 280 | return 'chief::back.managers._partials._form';  | 
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| 281 | }  | 
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| 282 | |||
| 283 | public function createViewData(): array  | 
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| 284 |     { | 
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| 285 | return [];  | 
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| 286 | }  | 
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| 287 | |||
| 288 | public function editView(): string  | 
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| 289 |     { | 
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| 290 | return 'chief::back.managers._partials._form';  | 
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| 291 | }  | 
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| 292 | |||
| 293 | public function editViewData(): array  | 
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| 294 |     { | 
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| 295 | return [];  | 
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| 296 | }  | 
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| 297 | |||
| 298 | public function delete()  | 
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| 299 |     { | 
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| 300 |         $this->guard('delete'); | 
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| 301 | |||
| 302 |         if ($this->model instanceof ActsAsChild) { | 
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| 303 | $this->model->detachAllParentRelations();  | 
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| 304 | }  | 
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| 305 | |||
| 306 |         if ($this->model instanceof ActsAsParent) { | 
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| 307 | $this->model->detachAllChildRelations();  | 
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| 308 | }  | 
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| 309 | |||
| 310 | $this->model->delete();  | 
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| 311 | }  | 
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| 312 | |||
| 313 | public static function filters(): Filters  | 
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| 314 |     { | 
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| 315 | return new Filters();  | 
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| 316 | }  | 
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| 317 | |||
| 318 | /**  | 
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| 319 | * This method can be used to manipulate the store request payload  | 
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| 320 | * before being passed to the storing / updating the models.  | 
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| 321 | *  | 
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| 322 | * @param Request $request  | 
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| 323 | * @return Request  | 
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| 324 | */  | 
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| 325 | public function storeRequest(Request $request): Request  | 
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| 328 | }  | 
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| 329 | |||
| 330 | /**  | 
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| 331 | * This method can be used to manipulate the update request payload  | 
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| 332 | * before being passed to the storing / updating the models.  | 
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| 333 | *  | 
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| 334 | * @param Request $request  | 
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| 335 | * @return Request  | 
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| 336 | */  | 
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| 337 | public function updateRequest(Request $request): Request  | 
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| 338 |     { | 
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| 339 | return $request;  | 
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| 340 | }  | 
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| 341 | |||
| 342 | protected function requestContainsTranslations(Request $request): bool  | 
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| 343 |     { | 
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| 344 |         return $request->has('trans'); | 
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| 345 | }  | 
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| 346 | |||
| 347 | protected function validateConstraints()  | 
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| 351 | }  | 
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| 352 | }  | 
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| 353 | |||
| 354 | public static function bootTraitMethods()  | 
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| 355 |     { | 
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| 356 | $class = static::class;  | 
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| 357 | |||
| 358 | $methods = [  | 
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| 359 | 'can',  | 
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| 360 | ];  | 
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| 361 | |||
| 362 |         foreach ($methods as $baseMethod) { | 
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| 363 | static::$bootedTraitMethods[$baseMethod] = [];  | 
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| 364 | |||
| 365 |             foreach (class_uses_recursive($class) as $trait) { | 
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| 370 | }  | 
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| 371 | }  | 
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| 372 | }  | 
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| 373 | }  | 
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| 374 | }  | 
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| 375 |