Merge pull request #19 from yabhq/allow-money-nullable

Allow Money cast to be nullable

Author: jimhlad

src/Casts/Money.php

@@ -17,6 +17,9 @@ class Money implements CastsAttributes
      */
     public function get($model, $key, $value, $attributes)
     {
+        if (is_null($value)) {
+            return $value;
+        }
         return $value * 0.01;
     }
 
@@ -25,7 +28,7 @@ public function get($model, $key, $value, $attributes)
      *
      * @param  \Illuminate\Database\Eloquent\Model  $model
      * @param  string  $key
-     * @param  array  $value
+     * @param  mixed  $value
      * @param  array  $attributes
      * @return string
      */

tests/Migrations/2020_06_23_000000_create_castable_models_table.php

@@ -15,7 +15,7 @@ public function up()
     {
         Schema::create('castable_models', function (Blueprint $table) {
             $table->increments('id');
-            $table->integer('amount');
+            $table->integer('amount')->nullable();
             $table->timestamps();
         });
     }

tests/MoneyCastTest.php

@@ -23,4 +23,21 @@ public function monetary_values_are_stored_in_cents_and_retrieved_in_dollars()
 
         $this->assertEquals(39.95, $model->amount);
     }
+
+    /** @test */
+    public function money_casted_value_returns_null_if_null_in_database()
+    {
+        $model = CastableModel::create([
+            'amount' => null,
+        ]);
+
+        $this->assertDatabaseHas('castable_models', [
+            'id' => $model->id,
+            'amount' => null
+        ]);
+
+        $model = $model->fresh();
+
+        $this->assertNull($model->amount);
+    }
 }