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validator : choice constraint : explain how to supply choices from a constant

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Lines changed: 30 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -210,7 +210,7 @@ constraint.`
`210`	`210`	`}`
`211`	`211`	`}`
`212`	`212`
`213`		-If the callback isstored in a different class and is static, for example ``AppBundle\Entity\Genre``,
	`213`	+If the callback isdefined in a different class and is static, for example ``AppBundle\Entity\Genre``,
`214`	`214`	`you can pass the class name and the method as an array.`
`215`	`215`
`216`	`216`	`..configuration-block::`
`@@ -279,6 +279,35 @@ you can pass the class name and the method as an array.`
`279`	`279`	`}`
`280`	`280`	`}`
`281`	`281`
	`282`	`+Supplying the Choices from an Array Constant`
	`283`	`+--------------------------------------------`
	`284`	`+`
	`285`	+You can also directly provide a constant containing an array to the ``choices`` option in the annotation::
	`286`	`+`
	`287`	`+ // src/AppBundle/Entity/Author.php`
	`288`	`+ namespace AppBundle\Entity;`
	`289`	`+`
	`290`	`+ use Symfony\Component\Validator\Constraints as Assert;`
	`291`	`+`
	`292`	`+ class Author`
	`293`	`+ {`
	`294`	`+ const GENRES = ['action', 'comedy'];`
	`295`	`+`
	`296`	`+ /**`
	`297`	`+ * @Assert\Choice(choices=Author::GENRES)`
	`298`	`+ */`
	`299`	`+ protected $genre;`
	`300`	`+ }`
	`301`	`+`
	`302`	`+..warning::`
	`303`	`+`
	`304`	`+ The constant in the option is used without quotes.`
	`305`	`+`
	`306`	`+..note::`
	`307`	`+`
	`308`	`+ If the constant is defined in a different class, you can pass the fully qualified class name.`
	`309`	`+`
	`310`	`+`
`282`	`311`	`Available Options`
`283`	`312`	`-----------------`
`284`	`313`

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