[Form] Fix choices defined as Traversable #16796
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| Q | A |
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| Bug fix? | yes |
| New feature? | no |
| BC breaks? | no |
| Deprecations? | no |
| Tests pass? | yes |
| Fixed tickets | #16792 |
| License | MIT |
| Doc PR | - |
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@nicolas-grekas this still does not fix the case of |
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@stof thanks for a hint I think that's the simplest way and EntityType already have it. Just found PR from last night (but it needs more thought) symfony/propel1-bridge#1 |
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| @@ -263,9 +263,11 @@ public function configureOptions(OptionsResolver $resolver) | |||
| return $choices; | |||
| } | |||
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| ChoiceType::normalizeLegacyChoices($choices, $choiceLabels); | |||
| if (null === $choices) { | |||
| 8000 $choices = array(); | |||
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@stof here is null handling. But should we deprecate accepting the null value? Otherwise, 3.0 misses a "choices" normalizer also, isn't it?
https://github.com/symfony/symfony/pull/16796/files#diff-11ee91a32c601e8e1d509117556d53b3R400
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@nicolas-grekas some sub-types are using null as default value of the option to distinguish between passing choices explicitly and using other ways of building choices (using the query builder). This change would break them (the PropelType for instance).
The Doctrine entity type is not affected because it changes the choices_as_values default and so is not triggered this line of code.
IMO, if null is given as input, you should just return it as is here (and letting the validation happening later checking this case in case the subtype does not handle it properly)
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FWIW I ran into the same error condition in #16792 using a combination of the Form component 2.8 and Doctrine bridge 3.0 with the EntityType and this PR fixed the error for that case. |
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Thanks for fixing this bug @nicolas-grekas. |
This PR was merged into the 2.8 branch. Discussion ---------- [Form] Fix choices defined as Traversable | Q | A | ------------- | --- | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #16792 | License | MIT | Doc PR | - Commits ------- 021d93a [Form] Fix choices defined as Traversable
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Shouldn't this have been merged in 2.7? See #17163 |