| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace App\Http\Requests\Api; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Carbon\Carbon; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Illuminate\Foundation\Http\FormRequest; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Illuminate\Validation\Rule; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | class TransactionRequest extends FormRequest | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |      * Determine if the user is authorized to make this request. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |     public function authorize() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |         return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      * Get custom messages for validator errors. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      * @return array | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 25 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  |     public function messages() | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |         return [ | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  |             'account.exists'            => 'no entry found for account', | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |             'transaction_status.exists' => 'no entry found for transaction_status', | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |             'transaction_type.exists'   => 'no entry found for transaction_type', | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  |             'category.exists'           => 'no entry found for category', | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |             'subcategory.exists'        => 'no entry found for subcategory', | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |         ]; | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * Get the validation rules that apply to the request. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     public function rules() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |             'transaction_date'   => 'nullable|date|date_format:'.Carbon::ATOM, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |             'transaction_status' => 'string|exists:transaction_status,name', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |             'transaction_type'   => 'required|string|exists:transaction_types,name', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |             'account'            => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |                 'required', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |                 'string', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |                 Rule::exists('accounts', 'name')->where('user_id', auth()->user()->id), | 
                            
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                | 52 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |             'to_account'         => 'sometimes|required|string', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |             'payee'              => 'sometimes|required|string', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |             'category'           => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |                 'required', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |                 'string', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |                 Rule::exists('categories', 'name')->where('user_id', auth()->user()->id)->whereNull('parent_id'), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |             'subcategory'        => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |                 'string', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |                 Rule::exists('categories', 'name')->where('user_id', auth()->user()->id)->whereNotNull('parent_id'), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |             'amount'             => 'required|numeric|min:0|max:999999', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |             'notes'              => 'string|nullable', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 68 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 69 |  |  |  | 
            
                        
It seems like the method you are trying to call exists only in some of the possible types.
Let’s take a look at an example:
Available Fixes
Add an additional type-check:
Only allow a single type to be passed if the variable comes from a parameter: