[11.x] Use getQualifiedOwnerKeyName in relations (#53573)

* feat: use model to qualify column

* tests: update mock

* refactor: use existing method

* fix: handle null value

* tests: update mocks

* chore: remove duplicates

* chore: revert unnecessary change

Author: willtj

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

@@ -96,9 +96,9 @@ public function addConstraints()
             // For belongs to relationships, which are essentially the inverse of has one
             // or has many relationships, we need to actually query on the primary key
             // of the related models matching on the foreign key that's on a parent.
-            $table = $this->related->getTable();
+            $key = $this->getQualifiedOwnerKeyName();
 
-            $this->query->where($table.'.'.$this->ownerKey, '=', $this->getForeignKeyFrom($this->child));
+            $this->query->where($key, '=', $this->getForeignKeyFrom($this->child));
         }
     }
 
@@ -108,7 +108,7 @@ public function addEagerConstraints(array $models)
         // We'll grab the primary key name of the related models since it could be set to
         // a non-standard name and not "id". We will then construct the constraint for
         // our eagerly loading query so it returns the proper models from execution.
-        $key = $this->related->getTable().'.'.$this->ownerKey;
+        $key = $this->getQualifiedOwnerKeyName();
 
         $whereIn = $this->whereInMethod($this->related, $this->ownerKey);
 
@@ -344,6 +344,10 @@ public function getOwnerKeyName()
      */
     public function getQualifiedOwnerKeyName()
     {
+        if (is_null($this->ownerKey)) {
+            return '';
+        }
+
         return $this->related->qualifyColumn($this->ownerKey);
     }
 

tests/Database/DatabaseEloquentBelongsToTest.php

@@ -404,6 +404,7 @@ protected function getRelation($parent = null, $keyType = 'int')
         $this->related->shouldReceive('getKeyType')->andReturn($keyType);
         $this->related->shouldReceive('getKeyName')->andReturn('id');
         $this->related->shouldReceive('getTable')->andReturn('relation');
+        $this->related->shouldReceive('qualifyColumn')->andReturnUsing(fn (string $column) => "relation.{$column}");
         $this->builder->shouldReceive('getModel')->andReturn($this->related);
         $parent = $parent ?: new EloquentBelongsToModelStub;
 

tests/Database/DatabaseEloquentMorphToTest.php

@@ -368,6 +368,7 @@ protected function getRelationAssociate($parent)
         $related = m::mock(Model::class);
         $related->shouldReceive('getKey')->andReturn(1);
         $related->shouldReceive('getTable')->andReturn('relation');
+        $related->shouldReceive('qualifyColumn')->andReturnUsing(fn (string $column) => "relation.{$column}");
         $builder->shouldReceive('getModel')->andReturn($related);
 
         return new MorphTo($builder, $parent, 'foreign_key', 'id', 'morph_type', 'relation');
@@ -380,6 +381,7 @@ public function getRelation($parent = null, $builder = null)
         $this->related = m::mock(Model::class);
         $this->related->shouldReceive('getKeyName')->andReturn('id');
         $this->related->shouldReceive('getTable')->andReturn('relation');
+        $this->related->shouldReceive('qualifyColumn')->andReturnUsing(fn (string $column) => "relation.{$column}");
         $this->builder->shouldReceive('getModel')->andReturn($this->related);
         $parent = $parent ?: new EloquentMorphToModelStub;