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Fix Placeholder view helper return value #162

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Fix Placeholder view helper return value #162

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991e537
Allow returning the Placeholder helper itself when no name is specified
thexpand Aug 15, 2018
c4c9488
Add test to check whether the placeholder retrieves itself when no na…
thexpand Aug 15, 2018
01e0927
Add test for the Placeholder::containerExists() method
thexpand Aug 15, 2018
d00694a
Add test to check if the created container is the same as the one fro…
thexpand Aug 15, 2018
c105734
Bump the minimum version for zend-mvc to 2.7.13 to satisfy lowest dep…
thexpand Aug 15, 2018
087b034
Switch to a range between 2.7.13 and 2.8 for zend-mvc dependency
thexpand Aug 15, 2018
4ecca91
Use the caret version range to define the minimum version for zend-mv…
thexpand Aug 15, 2018
c683c29
Use self instead of class name for the return type of Placeholder::__…
thexpand Aug 15, 2018
4be6723
Change the zend-mvc version constraint back to the original one
thexpand Aug 15, 2018
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8 changes: 2 additions & 6 deletions src/Helper/Placeholder.php
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@

namespace Zend\View\Helper;

use Zend\View\Exception\InvalidArgumentException;
use Zend\View\Helper\Placeholder\Container;

/**
Expand Down Expand Up @@ -37,15 +36,12 @@ class Placeholder extends AbstractHelper
* Placeholder helper
*
* @param string $name
* @throws InvalidArgumentException
* @return Placeholder\Container\AbstractContainer
* @return Placeholder\Container\AbstractContainer|self
*/
public function __invoke($name = null)
{
if ($name === null) {
throw new InvalidArgumentException(
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This particular change is most likely a BC break. Although I don't think people actually do rely on try-catching it, it is possible that they rely on the page to be crashing

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I totally agree with you. Should we move this to the 3.0.0 milestone?

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@Ocramius ping

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@thexpand
Next major version makes sense, because nobody uses a try-catch-block here.

'Placeholder: missing argument. $name is required by placeholder($name)'
);
return $this;
}

$name = (string) $name;
Expand Down
31 changes: 31 additions & 0 deletions test/Helper/PlaceholderTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,17 @@ public function testSetView()
$this->assertSame($view, $this->placeholder->getView());
}

/**
* @return void
*/
public function testContainerExists()
{
$this->placeholder->__invoke('foo');
$containerExists = $this->placeholder->__invoke()->containerExists('foo');

$this->assertTrue($containerExists);
}

/**
* @return void
*/
Expand All @@ -68,6 +79,15 @@ public function testPlaceholderRetrievesContainer()
$this->assertInstanceOf(AbstractContainer::class, $container);
}

/**
* @return void
*/
public function testPlaceholderRetrievesItself()
{
$container = $this->placeholder->__invoke();
$this->assertSame($container, $this->placeholder);
}

/**
* @return void
*/
Expand All @@ -77,4 +97,15 @@ public function testPlaceholderRetrievesSameContainerOnSubsequentCalls()
$container2 = $this->placeholder->__invoke('foo');
$this->assertSame($container1, $container2);
}

/**
* @return void
*/
public function testGetContainerRetrievesTheCorrectContainer()
{
$container1 = $this->placeholder->__invoke('foo');
$container2 = $this->placeholder->__invoke()->getContainer('foo');

$this->assertSame($container1, $container2);
}
}