[11.x] Add Relation::getMorphAlias() (laravel#51809)

* Add Relation::getMorphAlias * Update src/Illuminate/Database/Eloquent/Relations/Relation.php Co-authored-by: Caleb White <[email protected]> --------- Co-authored-by: Taylor Otwell <[email protected]> Co-authored-by: Caleb White <[email protected]>
alkin · Jun 17, 2024 · 9c19eb8 · 9c19eb8
1 parent 534f0d3
commit 9c19eb8
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diff --git a/src/Illuminate/Database/Eloquent/Relations/Relation.php b/src/Illuminate/Database/Eloquent/Relations/Relation.php
@@ -501,6 +501,17 @@ public static function getMorphedModel($alias)
         return static::$morphMap[$alias] ?? null;
     }
 
+    /**
+     * Get the alias associated with a custom polymorphic class.
+     *
+     * @param  string  $className
+     * @return int|string|null
+     */
+    public static function getMorphAlias(string $className)
+    {
+        return array_flip(static::$morphMap)[$className] ?? null;
+    }
+
     /**
      * Handle dynamic method calls to the relationship.
      *

diff --git a/tests/Database/DatabaseEloquentRelationTest.php b/tests/Database/DatabaseEloquentRelationTest.php
@@ -235,6 +235,14 @@ public function testSettingMorphMapWithNumericKeys()
         Relation::morphMap([], false);
     }
 
+    public function testGetMorphAlias()
+    {
+        Relation::morphMap(['user' => 'App\User']);
+
+        $this->assertEquals('user', Relation::getMorphAlias('App\User'));
+        $this->assertNull(Relation::getMorphAlias('Does\Not\Exist'));
+    }
+
     public function testWithoutRelations()
     {
         $original = new EloquentNoTouchingModelStub;