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Commitbe4b9d3

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featuresymfony#3729 Added documentation for the new PropertyAccessor::isReadable() and isWritable() methods (webmozart)
This PR was merged into the master branch.Discussion----------Added documentation for the new PropertyAccessor::isReadable() and isWritable() methods| Q | A| ------------- | ---| Doc fix? | no| New docs? | yes (symfony/symfony#10570)| Applies to | 2.5+| Fixed tickets | -Commits-------bb8e3ed Added documentation for the new PropertyAccessor::isReadable() and isWritable() methods
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‎components/property_access/introduction.rst

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@@ -309,6 +309,39 @@ see `Enable other Features`_.
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echo $person->getWouter(); // array(...)
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Checking Property Paths
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-----------------------
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..versionadded::2.5
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The methods
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:method:`PropertyAccessor::isReadable<Symfony\\Component\\PropertyAccess\\PropertyAccessor::isReadable>`
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and
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:method:`PropertyAccessor::isWritable<Symfony\\Component\\PropertyAccess\\PropertyAccessor::isWritable>`
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methods were added in Symfony 2.5.
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When you want to check whether:method:`PropertyAccessor::getValue<Symfony\\Component\\PropertyAccess\\PropertyAccessor::getValue>`
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can safely be called without actually calling that method, you can use
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:method:`PropertyAccessor::isReadable<Symfony\\Component\\PropertyAccess\\PropertyAccessor::isReadable>`
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instead::
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$person = new Person();
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if ($accessor->isReadable($person, 'firstName') {
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// ...
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}
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The same is possible for:method:`PropertyAccessor::setValue<Symfony\\Component\\PropertyAccess\\PropertyAccessor::setValue>`:
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Call the
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:method:`PropertyAccessor::isWritable<Symfony\\Component\\PropertyAccess\\PropertyAccessor::isWritable>`
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method to find out whether a property path can be updated. In the third
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argument, you should pass the value that you want to write::
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$person = new Person();
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if ($accessor->isWritable($person, 'firstName', 'Wouter') {
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// ...
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}
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Mixing Objects and Arrays
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-------------------------
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