[12.x] Fix the getCurrentlyAttachedPivots wrong morphClass for morph to many relationships

src/Illuminate/Database/Eloquent/Relations/MorphToMany.php

@@ -121,13 +121,14 @@ public function getRelationExistenceQuery(Builder $query, Builder $parentQuery,
     }
 
     /**
-     * Get the pivot models that are currently attached.
+     * Get the pivot models that are currently attached, filtered by related model keys.
      *
+     * @param  mixed  $ids
      * @return \Illuminate\Support\Collection<int, TPivotModel>
      */
-    protected function getCurrentlyAttachedPivots()
+    protected function getCurrentlyAttachedPivotsForIds($ids = null)
     {
-        return parent::getCurrentlyAttachedPivots()->map(function ($record) {
+        return parent::getCurrentlyAttachedPivotsForIds($ids)->map(function ($record) {
             return $record instanceof MorphPivot
                 ? $record->setMorphType($this->morphType)
                     ->setMorphClass($this->morphClass)

tests/Integration/Database/EloquentPivotEventsTest.php

@@ -179,6 +179,16 @@ public function testCustomMorphPivotClassDetachAttributes()
 
         $project->equipments()->save($equipment);
         $equipment->projects()->sync([]);
+
+        $this->assertEquals(
+            [PivotEventsTestProject::class, PivotEventsTestProject::class, PivotEventsTestProject::class, PivotEventsTestProject::class, PivotEventsTestProject::class, PivotEventsTestProject::class],
+            PivotEventsTestModelEquipment::$eventsMorphClasses
+        );
+
+        $this->assertEquals(
+            ['equipmentable_type', 'equipmentable_type', 'equipmentable_type', 'equipmentable_type', 'equipmentable_type', 'equipmentable_type'],
+            PivotEventsTestModelEquipment::$eventsMorphTypes
+        );
     }
 }
 
@@ -237,6 +247,55 @@ class PivotEventsTestModelEquipment extends MorphPivot
 {
     public $table = 'equipmentables';
 
+    public static $eventsMorphClasses = [];
+
+    public static $eventsMorphTypes = [];
+
+    public static function boot()
+    {
+        parent::boot();
+
+        static::creating(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::created(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::updating(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::updated(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::saving(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::saved(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::deleting(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+
+        static::deleted(function ($model) {
+            static::$eventsMorphClasses[] = $model->morphClass;
+            static::$eventsMorphTypes[] = $model->morphType;
+        });
+    }
+
     public function equipment()
     {
         return $this->belongsTo(PivotEventsTestEquipment::class);