[FEATURE] Add Multiselect functionality

config/custom-fields.php

@@ -29,6 +29,7 @@
         'select' => \Givebutter\LaravelCustomFields\FieldTypes\SelectFieldType::class,
         'textarea' => \Givebutter\LaravelCustomFields\FieldTypes\TextareaFieldType::class,
         'text' => \Givebutter\LaravelCustomFields\FieldTypes\TextFieldType::class,
+        'multiselect' => \Givebutter\LaravelCustomFields\FieldTypes\MultiselectFieldType::class,
     ],
 
     /*
@@ -47,6 +48,7 @@
         'select' => \Givebutter\LaravelCustomFields\ResponseTypes\SelectResponseType::class,
         'textarea' => \Givebutter\LaravelCustomFields\ResponseTypes\TextareaResponseType::class,
         'text' => \Givebutter\LaravelCustomFields\ResponseTypes\TextResponseType::class,
+        'multiselect' => \Givebutter\LaravelCustomFields\ResponseTypes\MultiselectResponseType::class,
     ],
 
     /*

database/factories/CustomFieldFactory.php

@@ -100,6 +100,16 @@ public function withTypeTextArea()
         return $this;
     }
 
+    /**
+     * @return $this
+     */
+    public function withTypeMultiselect()
+    {
+        $this->model->type = CustomFieldType::MULTISELECT;
+
+        return $this;
+    }
+
     /**
      * @param $defaultValue
      * @return $this

src/Enums/CustomFieldType.php

@@ -10,12 +10,14 @@ enum CustomFieldType: string
     case SELECT = 'select';
     case TEXT = 'text';
     case TEXTAREA = 'textarea';
+    case MULTISELECT = 'multiselect';
 
     public function requiresAnswers(): bool
     {
         return in_array($this, [
             self::RADIO,
             self::SELECT,
+            self::MULTISELECT,
         ]);
     }
 }

src/FieldTypes/MultiselectFieldType.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Givebutter\LaravelCustomFields\FieldTypes;
+
+use Illuminate\Validation\Rule;
+
+class MultiselectFieldType extends FieldType
+{
+    public function validationRules(array $attributes): array
+    {
+        return [
+            $this->validationPrefix.$this->field->id => [
+                $this->requiredRule($attributes['required']),
+                'array',
+            ],
+            $this->validationPrefix.$this->field->id.'.*' => [
+                'required',
+                'distinct',
+                'string',
+                'max:255',
+                Rule::in($this->field->answers),
+            ],
+        ];
+    }
+}

src/ResponseTypes/MultiselectResponseType.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Givebutter\LaravelCustomFields\ResponseTypes;
+
+class MultiselectResponseType extends ResponseType
+{
+    const VALUE_FIELD = 'value_json';
+
+    public function getValueFriendly(): string
+    {
+        if (is_null($this->getValue())) {
+            return '';
+        }
+
+        return implode(', ', $this->getValue());
+    }
+}

tests/Feature/CustomFieldControllerTest.php

@@ -290,6 +290,99 @@ function (TestCase $test, SurveyResponse $surveyResponse) {
         ];
     }
 
+    /**
+     * @test
+     */
+    public function multiselect_can_pass_validation(): void
+    {
+        $survey = Survey::create();
+        $survey->customfields()->save(
+            CustomField::factory()->make([
+                'title' => 'Favorite Album',
+                'type' => 'multiselect',
+                'answers' => ['Tha Carter', 'Tha Carter II', 'Tha Carter III'],
+            ])
+        );
+
+        Route::post("/surveys/{$survey->id}/responses", function (Request $request) use ($survey) {
+            $validator = $survey->validateCustomFields($request);
+
+            if ($validator->fails()) {
+                return ['errors' => $validator->errors()];
+            }
+
+            return response('All good', 200);
+        });
+
+        $fieldId = CustomField::where('title', 'Favorite Album')->value('id');
+
+        $this
+            ->post("/surveys/{$survey->id}/responses", [
+                'custom_fields' => [
+                    $fieldId => [
+                        'Tha Carter',
+                        'Tha Carter III',
+                    ],
+                ],
+            ])->assertSee('All good');
+    }
+
+    /**
+     * @test
+     */
+    public function multiselect_can_overwrite_values(): void
+    {
+        $survey = Survey::create();
+        $surveyResponse = SurveyResponse::create();
+        $field = $survey->customfields()->save(
+            CustomField::factory()->make([
+                'title' => 'Favorite Album',
+                'type' => 'multiselect',
+                'answers' => ['Tha Carter', 'Tha Carter II', 'Tha Carter III'],
+            ])
+        );
+
+        Route::post("/surveys/{$survey->id}/responses", function (Request $request) use ($survey, $surveyResponse) {
+            $survey->validateCustomFields($request);
+
+            $surveyResponse->saveCustomFields($request->custom_fields);
+
+            return response('All good', 200);
+        });
+
+        // first time
+        $this
+            ->post("/surveys/{$survey->id}/responses", [
+                'custom_fields' => [
+                    $field->id => [
+                        'Tha Carter II',
+                        'Tha Carter III',
+                    ],
+                ],
+            ])->assertOk();
+
+        $this->assertSame(1, $field->responses()->count());
+        $this->assertSame([
+            'Tha Carter II',
+            'Tha Carter III',
+        ], $field->responses()->first()->value);
+
+        // second time
+        $this
+            ->post("/surveys/{$survey->id}/responses", [
+                'custom_fields' => [
+                    $field->id => [
+                        'Tha Carter I',
+                    ],
+                ],
+            ])->assertOk();
+
+        $this->assertSame(1, $field->responses()->count());
+        $this->assertSame([
+            'Tha Carter I',
+        ], $field->responses()->first()->value);
+    }
+
     /** @test */
     public function fields_can_be_saved_from_request_with_convenience_method()
     {