Fix relation name in targetRelation bug

Author: SOHELAHMED7

src/lib/ValidationRulesBuilder.php

@@ -10,8 +10,6 @@
 use cebe\yii2openapi\lib\items\Attribute;
 use cebe\yii2openapi\lib\items\DbModel;
 use cebe\yii2openapi\lib\items\ValidationRule;
-use yii\helpers\VarDumper;
-use yii\validators\DateValidator;
 use function count;
 use function implode;
 use function in_array;
@@ -162,10 +160,12 @@ private function addExistRules(array $relations):void
             } elseif ($attribute->phpType === 'string') {
                 $this->addStringRule($attribute);
             }
+
+            $targetRelation = AttributeResolver::relationName($attribute->columnName, $attribute->propertyName);
             $this->rules[$attribute->columnName . '_exist'] = new ValidationRule(
                 [$attribute->columnName],
                 'exist',
-                ['targetRelation' => $attribute->camelName()]
+                ['targetRelation' => $targetRelation]
             );
         }
     }

tests/specs/issue_fix/29_extension_fk_column_name_cause_error_in_case_of_column_name_without_underscore/index.php

@@ -2,12 +2,12 @@
 
 return [
     'openApiPath' => '@specs/issue_fix/29_extension_fk_column_name_cause_error_in_case_of_column_name_without_underscore/index.yaml',
-    'generateUrls' => true,
+    'generateUrls' => false,
     'generateModels' => true,
     'excludeModels' => [
         'Error',
     ],
-    'generateControllers' => true,
+    'generateControllers' => false,
     'generateMigrations' => true,
     'generateModelFaker' => true,
 ];

tests/specs/issue_fix/29_extension_fk_column_name_cause_error_in_case_of_column_name_without_underscore/index.yaml

@@ -31,4 +31,3 @@ components:
           allOf:
             - $ref: '#/components/schemas/User'
             - x-fk-column-name: user
-