Update custom_constraint.rst

thomasbisignani · javiereguiluz · commit bb301266fd11 · 2018-11-14T17:36:35.000+01:00
diff --git a/validation/custom_constraint.rst b/validation/custom_constraint.rst
@@ -65,6 +65,10 @@ The validator class is also simple, and only has one required method ``validate(
     {
         public function validate($value, Constraint $constraint)
         {
+            if (!$constraint instanceof ContainsAlphanumeric) {
+               throw new UnexpectedTypeException($constraint, ContainsAlphanumeric::class);
+            }
+            
             // custom constraints should ignore null and empty values to allow
             // other constraints (NotBlank, NotNull, etc.) take care of that
             if (null === $value || '' === $value) {

Original file line number	Diff line number	Diff line change
@@ -65,6 +65,10 @@ The validator class is also simple, and only has one required method ``validate(
`65`	`65`	`{`
`66`	`66`	`public function validate($value, Constraint $constraint)`
`67`	`67`	`{`
	`68`	`+ if (!$constraint instanceof ContainsAlphanumeric) {`
	`69`	`+ throw new UnexpectedTypeException($constraint, ContainsAlphanumeric::class);`
	`70`	`+ }`
	`71`	`+`
`68`	`72`	`// custom constraints should ignore null and empty values to allow`
`69`	`73`	`// other constraints (NotBlank, NotNull, etc.) take care of that`
`70`	`74`	`if (null === $value \|\| '' === $value) {`