[Form] Improve exception for unsubmitted form

KThiebault · fabpot · commit ce99d4ab880c · 2023-03-13T20:13:43.000+01:00
diff --git a/Form.php b/Form.php
@@ -646,7 +646,7 @@ public function isEmpty(): bool
     public function isValid(): bool
     {
         if (!$this->submitted) {
-            throw new LogicException('Cannot check if an unsubmitted form is valid. Call Form::isSubmitted() before Form::isValid().');
+            throw new LogicException('Cannot check if an unsubmitted form is valid. Call Form::isSubmitted() and ensure that it\'s true before calling Form::isValid().');
         }
 
         if ($this->isDisabled()) {

Original file line number	Diff line number	Diff line change
`@@ -646,7 +646,7 @@ public function isEmpty(): bool`
`646`	`646`	`public function isValid(): bool`
`647`	`647`	`{`
`648`	`648`	`if (!$this->submitted) {`
`649`		`- throw new LogicException('Cannot check if an unsubmitted form is valid. Call Form::isSubmitted() before Form::isValid().');`
	`649`	`+ throw new LogicException('Cannot check if an unsubmitted form is valid. Call Form::isSubmitted() and ensure that it\'s true before calling Form::isValid().');`
`650`	`650`	`}`
`651`	`651`
`652`	`652`	`if ($this->isDisabled()) {`