[Form] Improved ValidatorTypeGuesser to interpret the constraints True and False

Author: webmozart

src/Symfony/Component/Form/Extension/Validator/ValidatorTypeGuesser.php

@@ -171,7 +171,13 @@ public function guessTypeForConstraint(Constraint $constraint)
 
  case 'Symfony\Component\Validator\Constraints\Url':
  return new TypeGuess('url', array(), Guess::HIGH_CONFIDENCE);
+
+ case 'Symfony\Component\Validator\Constraints\True':
+ case 'Symfony\Component\Validator\Constraints\False':
+ return new TypeGuess('checkbox', array(), Guess::MEDIUM_CONFIDENCE);
  }
+
+ return null;
  }
 
  /**
@@ -186,8 +192,11 @@ public function guessRequiredForConstraint(Constraint $constraint)
  switch (get_class($constraint)) {
  case 'Symfony\Component\Validator\Constraints\NotNull':
  case 'Symfony\Component\Validator\Constraints\NotBlank':
+ case 'Symfony\Component\Validator\Constraints\True':
  return new ValueGuess(true, Guess::HIGH_CONFIDENCE);
  }
+
+ return null;
  }
 
  /**
@@ -215,6 +224,8 @@ public function guessMaxLengthForConstraint(Constraint $constraint)
  case 'Symfony\Component\Validator\Constraints\Size':
  return new ValueGuess(strlen((string) $constraint->max), Guess::LOW_CONFIDENCE);
  }
+
+ return null;
  }
 
  /**
@@ -250,6 +261,8 @@ public function guessPatternForConstraint(Constraint $constraint)
  }
  break;
  }
+
+ return null;
  }
 
  /**