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Commitf202fb8

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Removed duplicate use statements
1 parentae66893 commitf202fb8

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‎components/options_resolver.rst

Lines changed: 17 additions & 34 deletions
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@@ -96,6 +96,7 @@ is thrown if an unknown option is passed::
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The rest of your code can now access the values of the options without
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boilerplate code::
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// ...
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class Mailer
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{
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// ...
@@ -117,8 +118,7 @@ If an option must be set by the caller, pass that option to
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:method:`Symfony\\Component\\OptionsResolver\\Options::validateRequired`.
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For example, let's make the ``host`` option required::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...
@@ -160,9 +160,8 @@ Type Validation
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You can run additional checks on the options to make sure they were passed
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correctly. To validate the types of the options, call
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:method:`Symfony\\Component\\OptionsResolver\\Options::validateTypes`::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...
@@ -206,8 +205,7 @@ one of ``sendmail``, ``mail`` and ``smtp``. Use the method
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:method:`Symfony\\Component\\OptionsResolver\\Options::validateValues` to verify
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that the passed option contains one of these values::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...
@@ -256,8 +254,7 @@ You can implement this feature by passing a closure as default value of the
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``port`` option. The closure receives the options as argument. Based on these
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options, you can return the desired default value::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...
@@ -305,8 +302,7 @@ If you have a large list of options, the option processing code can take up a
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lot of space of your method. To make your code easier to read and maintain, it
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is a good practice to put the option definitions into static class properties::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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private static $defaultOptions = array(
@@ -382,7 +378,7 @@ configuration object to resolve the options.
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The following code demonstrates how to write our previous ``Mailer`` class with
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an:class:`Symfony\\Component\\OptionsResolver\\OptionsConfig` object::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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use Symfony\Component\OptionsResolver\OptionsConfig;
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class Mailer
@@ -431,9 +427,7 @@ the :class:`Symfony\\Component\\OptionsResolver\\OptionsConfig` instance.
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Nevertheless, this design also has a benefit: We can extend the ``Mailer``
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class and adjust the options of the parent class in the subclass::
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use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class GoogleMailer extends Mailer
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{
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protected function configureOptions(OptionsConfig $config)
@@ -476,9 +470,7 @@ however, *no default value* will be added to the options array. Pass the names
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of the optional options to
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:method:`Symfony\\Component\\OptionsResolver\\OptionsConfig::setOptional`::
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use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class Mailer
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{
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// ...
@@ -493,6 +485,7 @@ of the optional options to
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This is useful if you need to know whether an option was explicitly passed. If
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not, it will be missing from the options array::
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// ...
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class Mailer
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{
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// ...
@@ -523,8 +516,7 @@ not, it will be missing from the options array::
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the options before calling
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:method:`Symfony\\Component\\OptionsResolver\\Options::resolve`::
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use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...
@@ -557,9 +549,7 @@ again. When using a closure as the new value it is passed 2 arguments:
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..code-block::php
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560-
use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class Mailer
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{
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// ...
@@ -592,9 +582,7 @@ again. When using a closure as the new value it is passed 2 arguments:
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to improve performance. This means that the previous default value is not
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available when overwriting with another closure::
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use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class Mailer
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{
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// ...
@@ -635,9 +623,7 @@ you can write normalizers. Normalizers are executed after all options were
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processed. You can configure these normalizers by calling
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:method:`Symfony\\Components\\OptionsResolver\\OptionsConfig::setNormalizers`::
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use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class Mailer
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{
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// ...
@@ -661,9 +647,7 @@ The normalizer receives the actual ``$value`` and returns the normalized form.
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You see that the closure also takes an ``$options`` parameter. This is useful
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if you need to use other options for the normalization::
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use Symfony\Component\OptionsResolver\Options;
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use Symfony\Component\OptionsResolver\OptionsConfig;
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// ...
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class Mailer
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{
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// ...
@@ -693,8 +677,7 @@ if you need to use other options for the normalization::
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object, perform normalization after the call to
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:method:`Symfony\\Component\\OptionsResolver\\Options::resolve`::
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696-
use Symfony\Component\OptionsResolver\Options;
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// ...
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class Mailer
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{
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// ...

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