Complex classes like JsonApiController 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 JsonApiController, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 25 | abstract class JsonApiController extends Controller  | 
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| 26 | { | 
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| 27 | use JsonApiErrors;  | 
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| 28 | use AuthorizesRequests;  | 
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| 29 | use ValidatesRequests;  | 
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| 30 | |||
| 31 | /**  | 
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| 32 | * Return the Eloquent Model for the resource.  | 
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| 33 | *  | 
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| 34 | * @return Model  | 
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| 35 | */  | 
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| 36 | abstract protected function getModel();  | 
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| 37 | |||
| 38 | /**  | 
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| 39 | * The model relationships that can be updated.  | 
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| 40 | *  | 
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| 41 | * @return array  | 
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| 42 | */  | 
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| 43 | protected function getModelRelationships()  | 
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| 47 | |||
| 48 | /**  | 
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| 49 | * Return a listing of the resource.  | 
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| 50 | *  | 
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| 51 | * @param Request $request  | 
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| 52 | * @param \Illuminate\Database\Eloquent\Builder|null $query Custom resource query  | 
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| 53 | *  | 
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| 54 | * @return JsonApiResponse  | 
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| 55 | */  | 
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| 56 | public function indexAction(Request $request, $query = null)  | 
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| 75 | |||
| 76 | /**  | 
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| 77 | * Store a new record.  | 
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| 78 | *  | 
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| 79 | * @param Request $request  | 
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| 80 | *  | 
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| 81 | * @return JsonApiResponse  | 
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| 82 | */  | 
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| 83 | public function storeAction(Request $request)  | 
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| 93 | |||
| 94 | /**  | 
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| 95 | * Return a specified record.  | 
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| 96 | *  | 
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| 97 | * @param Request $request  | 
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| 98 | * @param Model|int $record  | 
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| 99 | *  | 
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| 100 | * @return JsonApiResponse  | 
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| 101 | */  | 
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| 102 | public function showAction(Request $request, $record)  | 
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| 109 | |||
| 110 | /**  | 
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| 111 | * Update a specified record.  | 
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| 112 | *  | 
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| 113 | * @param Request $request  | 
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| 114 | * @param Model|int $record  | 
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| 115 | *  | 
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| 116 | * @return JsonApiResponse  | 
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| 117 | */  | 
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| 118 | public function updateAction(Request $request, $record)  | 
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| 130 | |||
| 131 | /**  | 
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| 132 | * Destroy a specified record.  | 
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| 133 | *  | 
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| 134 | * @param Request $request  | 
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| 135 | * @param Model|int $record  | 
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| 136 | *  | 
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| 137 | * @return JsonApiResponse  | 
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| 138 | */  | 
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| 139 | public function destroyAction(Request $request, $record)  | 
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| 146 | |||
| 147 | /**  | 
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| 148 | * Return a specified record relationship.  | 
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| 149 | *  | 
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| 150 | * @param Request $request  | 
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| 151 | * @param Model|int $record  | 
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| 152 | * @param string $relation  | 
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| 153 | *  | 
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| 154 | * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException  | 
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| 155 | *  | 
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| 156 | * @return JsonApiResponse  | 
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| 157 | */  | 
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| 158 | public function relationshipAction(Request $request, $record, $relation)  | 
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| 166 | |||
| 167 | /**  | 
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| 168 | * Update a named many-to-one relationship association on a specified record.  | 
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| 169 | * http://jsonapi.org/format/#crud-updating-to-one-relationships  | 
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| 170 | *  | 
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| 171 | * @param Request $request  | 
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| 172 | * @param Model|int $record  | 
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| 173 | * @param string $relation  | 
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| 174 | *  | 
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| 175 | * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException  | 
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| 176 | *  | 
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| 177 | * @return JsonApiResponse  | 
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| 178 | */  | 
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| 179 | public function updateToOneRelationshipAction(Request $request, $record, $relation)  | 
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| 192 | |||
| 193 | /**  | 
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| 194 | * Update named many-to-many relationship entries on a specified record.  | 
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| 195 | * http://jsonapi.org/format/#crud-updating-to-many-relationships  | 
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| 196 | *  | 
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| 197 | * @param Request $request  | 
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| 198 | * @param Model|int $record  | 
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| 199 | * @param string $relation  | 
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| 200 | *  | 
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| 201 | * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException  | 
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| 202 | *  | 
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| 203 | * @return JsonApiResponse  | 
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| 204 | */  | 
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| 205 | public function updateToManyRelationshipAction(Request $request, $record, $relation)  | 
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| 234 | |||
| 235 | /**  | 
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| 236 | * Return existing instance of the resource or find by primary key.  | 
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| 237 | *  | 
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| 238 | * @param Model|int $record  | 
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| 239 | *  | 
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| 240 | * @throws ModelNotFoundException  | 
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| 241 | *  | 
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| 242 | * @return Model  | 
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| 243 | */  | 
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| 244 | protected function findModelInstance($record)  | 
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| 256 | |||
| 257 | /**  | 
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| 258 | * Return any JSON API resource parameters from a request.  | 
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| 259 | *  | 
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| 260 | * @param Request $request  | 
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| 261 | *  | 
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| 262 | * @return array  | 
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| 263 | */  | 
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| 264 | protected function getRequestParameters($request)  | 
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| 279 | |||
| 280 | /**  | 
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| 281 | * Return any comma separated values in a request query field as an array.  | 
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| 282 | *  | 
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| 283 | * @param Request $request  | 
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| 284 | * @param string $key  | 
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| 285 | * @param string|null $validate Regular expression to test for each item  | 
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| 286 | *  | 
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| 287 | * @throws \Illuminate\Validation\ValidationException  | 
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| 288 | *  | 
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| 289 | * @return array  | 
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| 290 | */  | 
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| 291 | protected function getRequestQuerySet($request, $key, $validate = null)  | 
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| 308 | |||
| 309 | /**  | 
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| 310 | * Sort a resource query by one or more attributes.  | 
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| 311 | *  | 
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| 312 | * @param \Illuminate\Database\Eloquent\Builder $query  | 
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| 313 | * @param array $attributes  | 
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| 314 | *  | 
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| 315 | * @return \Illuminate\Database\Eloquent\Builder  | 
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| 316 | */  | 
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| 317 | protected function sortQuery($query, $attributes)  | 
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| 327 | |||
| 328 | /**  | 
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| 329 | * Filter a resource query by one or more attributes.  | 
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| 330 | *  | 
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| 331 | * @param \Illuminate\Database\Eloquent\Builder $query  | 
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| 332 | * @param array $attributes  | 
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| 333 | *  | 
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| 334 | * @return \Illuminate\Database\Eloquent\Builder  | 
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| 335 | */  | 
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| 336 | protected function filterQuery($query, $attributes)  | 
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| 358 | |||
| 359 | /**  | 
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| 360 | * Update one or more relationships on a model instance.  | 
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| 361 | *  | 
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| 362 | * @param Model $record  | 
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| 363 | * @param array $relationships  | 
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| 364 | */  | 
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| 365 | protected function updateRecordRelationships($record, array $relationships)  | 
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| 381 | }  | 
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| 382 | 
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: