Update structure-models.md (yiisoft#19846)

nadar · web-flow · commit e8f2ca727df1 · 2023-05-24T09:36:23.000+02:00
diff --git a/docs/guide/structure-models.md b/docs/guide/structure-models.md
@@ -293,6 +293,8 @@ public function rules()
 
         // username and password are required in "login" scenario
         [['username', 'password'], 'required', 'on' => self::SCENARIO_LOGIN],
+        
+        [['username'], 'string'], // username must always be a string, this rule applies to all scenarios
     ];
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -293,6 +293,8 @@ public function rules()`
`293`	`293`
`294`	`294`	`// username and password are required in "login" scenario`
`295`	`295`	`[['username', 'password'], 'required', 'on' => self::SCENARIO_LOGIN],`
	`296`	`+`
	`297`	`+ [['username'], 'string'], // username must always be a string, this rule applies to all scenarios`
`296`	`298`	`];`
`297`	`299`	`}`
`298`	`300`	```