[config] Fix issue when key removed and left value only
When a key attribute is mapped and the key is removed from the value array, if only 'value' element is left in the array, it should replace its wrapper array. Assume the original value array is as follows (key attribute is 'id'). ```php array( 'things' => array( array('id' => 'option1', 'value' => 'value1'), array('id' => 'option2', 'value' => 'value2') ) ) ``` After normalized, the above shall be converted to the following array. ```php array( 'things' => array( 'option1' => 'value1', 'option2' => 'value2' ) ) ``` It's also possible to mix 'value-only' and 'none-value-only' elements in the array: ```php array( 'things' => array( array('id' => 'option1', 'value' => 'value1'), array('id' => 'option2', 'value' => 'value2', 'foo' => 'foo2') ) ) ``` The above shall be converted to the following array. ```php array( 'things' => array( 'option1' => 'value1', 'option2' => array('value' => 'value2','foo' => 'foo2') ) ) ``` The 'value' element can also be array: ```php array( 'things' => array( array( 'id' => 'option1', 'value' => array('foo'=>'foo1', 'bar' => 'bar1') ) ) ) ``` The above shall be converted to the following array. ```php array( 'things' => array( 'option1' => array('foo' => 'foo1', 'bar' => 'bar1') ) ) ``` When using VariableNode for value element, it's also possible to mix different types of value elements: ```php array( 'things' => array( array('id' => 'option1', 'value' => array('foo'=>'foo1', 'bar' => 'bar1')), array('id' => 'option2', 'value' => 'value2') ) ) ``` The above shall be converted to the following array. ```php array( 'things' => array( 'option1' => array('foo'=>'foo1', 'bar' => 'bar1'), 'option2' => 'value2' ) ) ``` | Q | A | ------------- | --- | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #15270 | License | MIT | Doc PR | n/a
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@ -29,6 +29,10 @@ class PrototypedArrayNode extends ArrayNode
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protected $minNumberOfElements = 0;
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protected $defaultValue = array();
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protected $defaultChildren;
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/**
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* @var NodeInterface[] An array of the prototypes of the simplified value children
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*/
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private $valuePrototypes = array();
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/**
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* Sets the minimum number of elements that a prototype based node must
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@ -194,9 +198,9 @@ class PrototypedArrayNode extends ArrayNode
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}
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foreach ($value as $k => $v) {
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$this->prototype->setName($k);
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$prototype = $this->getPrototypeForChild($k);
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try {
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$value[$k] = $this->prototype->finalize($v);
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$value[$k] = $prototype->finalize($v);
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} catch (UnsetKeyException $e) {
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unset($value[$k]);
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}
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@ -250,8 +254,18 @@ class PrototypedArrayNode extends ArrayNode
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}
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// if only "value" is left
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if (1 == count($v) && isset($v['value'])) {
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if (array_keys($v) === array('value')) {
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$v = $v['value'];
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if ($this->prototype instanceof ArrayNode && ($children = $this->prototype->getChildren()) && array_key_exists('value', $children)) {
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$valuePrototype = current($this->valuePrototypes) ?: clone($children['value']);
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$valuePrototype->parent = $this;
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$originalClosures = $this->prototype->normalizationClosures;
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if (is_array($originalClosures)) {
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$valuePrototypeClosures = $valuePrototype->normalizationClosures;
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$valuePrototype->normalizationClosures = is_array($valuePrototypeClosures) ? array_merge($originalClosures, $valuePrototypeClosures) : $originalClosures;
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}
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$this->valuePrototypes[$k] = $valuePrototype;
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}
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}
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}
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@ -264,11 +278,11 @@ class PrototypedArrayNode extends ArrayNode
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}
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}
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$this->prototype->setName($k);
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$prototype = $this->getPrototypeForChild($k);
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if (null !== $this->keyAttribute || $isAssoc) {
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$normalized[$k] = $this->prototype->normalize($v);
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$normalized[$k] = $prototype->normalize($v);
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} else {
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$normalized[] = $this->prototype->normalize($v);
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$normalized[] = $prototype->normalize($v);
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}
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}
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@ -322,10 +336,54 @@ class PrototypedArrayNode extends ArrayNode
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continue;
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}
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$this->prototype->setName($k);
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$leftSide[$k] = $this->prototype->merge($leftSide[$k], $v);
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$prototype = $this->getPrototypeForChild($k);
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$leftSide[$k] = $prototype->merge($leftSide[$k], $v);
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}
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return $leftSide;
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}
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/**
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* Returns a prototype for the child node that is associated to $key in the value array.
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* For general child nodes, this will be $this->prototype.
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* But if $this->removeKeyAttribute is true and there are only two keys in the child node:
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* one is same as this->keyAttribute and the other is 'value', then the prototype will be different.
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*
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* For example, assume $this->keyAttribute is 'name' and the value array is as follows:
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* array(
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* array(
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* 'name' => 'name001',
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* 'value' => 'value001'
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* )
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* )
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*
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* Now, the key is 0 and the child node is:
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* array(
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* 'name' => 'name001',
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* 'value' => 'value001'
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* )
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*
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* When normalizing the value array, the 'name' element will removed from the child node
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* and its value becomes the new key of the child node:
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* array(
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* 'name001' => array('value' => 'value001')
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* )
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*
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* Now only 'value' element is left in the child node which can be further simplified into a string:
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* array('name001' => 'value001')
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*
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* Now, the key becomes 'name001' and the child node becomes 'value001' and
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* the prototype of child node 'name001' should be a ScalarNode instead of an ArrayNode instance.
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*
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* @param string $key The key of the child node
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*
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* @return mixed The prototype instance
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*/
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private function getPrototypeForChild($key)
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{
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$prototype = isset($this->valuePrototypes[$key]) ? $this->valuePrototypes[$key] : $this->prototype;
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$prototype->setName($key);
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return $prototype;
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}
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}
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@ -14,6 +14,7 @@ namespace Symfony\Component\Config\Tests\Definition;
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use Symfony\Component\Config\Definition\PrototypedArrayNode;
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use Symfony\Component\Config\Definition\ArrayNode;
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use Symfony\Component\Config\Definition\ScalarNode;
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use Symfony\Component\Config\Definition\VariableNode;
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class PrototypedArrayNodeTest extends \PHPUnit_Framework_TestCase
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{
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@ -177,4 +178,164 @@ class PrototypedArrayNodeTest extends \PHPUnit_Framework_TestCase
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return $node;
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}
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/**
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* Tests that when a key attribute is mapped, that key is removed from the array.
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* And if only 'value' element is left in the array, it will replace its wrapper array.
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*
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* <things>
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* <option id="option1" value="value1">
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* </things>
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*
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* The above should finally be mapped to an array that looks like this
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* (because "id" is the key attribute).
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*
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* array(
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* 'things' => array(
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* 'option1' => 'value1'
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* )
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* )
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*
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* It's also possible to mix 'value-only' and 'non-value-only' elements in the array.
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*
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* <things>
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* <option id="option1" value="value1">
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* <option id="option2" value="value2" foo="foo2">
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* </things>
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*
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* The above should finally be mapped to an array as follows
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*
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* array(
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* 'things' => array(
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* 'option1' => 'value1',
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* 'option2' => array(
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* 'value' => 'value2',
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* 'foo' => 'foo2'
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* )
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* )
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* )
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*
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* The 'value' element can also be ArrayNode:
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*
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* <things>
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* <option id="option1">
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* <value>
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* <foo>foo1</foo>
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* <bar>bar1</bar>
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* </value>
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* </option>
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* </things>
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*
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* The above should be finally be mapped to an array as follows
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*
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* array(
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* 'things' => array(
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* 'option1' => array(
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* 'foo' => 'foo1',
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* 'bar' => 'bar1'
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* )
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* )
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* )
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*
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* If using VariableNode for value node, it's also possible to mix different types of value nodes:
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*
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* <things>
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* <option id="option1">
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* <value>
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* <foo>foo1</foo>
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* <bar>bar1</bar>
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* </value>
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* </option>
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* <option id="option2" value="value2">
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* </things>
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*
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* The above should be finally mapped to an array as follows
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*
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* array(
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* 'things' => array(
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* 'option1' => array(
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* 'foo' => 'foo1',
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* 'bar' => 'bar1'
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* ),
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* 'option2' => 'value2'
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* )
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* )
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*
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*
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* @dataProvider getDataForKeyRemovedLeftValueOnly
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*/
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public function testMappedAttributeKeyIsRemovedLeftValueOnly($value, $children, $expected)
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{
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$node = new PrototypedArrayNode('root');
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$node->setKeyAttribute('id', true);
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// each item under the root is an array, with one scalar item
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$prototype = new ArrayNode(null, $node);
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$prototype->addChild(new ScalarNode('id'));
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$prototype->addChild(new ScalarNode('foo'));
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$prototype->addChild($value);
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$node->setPrototype($prototype);
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$normalized = $node->normalize($children);
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$this->assertEquals($expected, $normalized);
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}
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public function getDataForKeyRemovedLeftValueOnly()
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{
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$scalarValue = new ScalarNode('value');
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$arrayValue = new ArrayNode('value');
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$arrayValue->addChild(new ScalarNode('foo'));
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$arrayValue->addChild(new ScalarNode('bar'));
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$variableValue = new VariableNode('value');
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return array(
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array(
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$scalarValue,
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array(
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array('id' => 'option1', 'value' => 'value1'),
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),
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array('option1' => 'value1'),
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),
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array(
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$scalarValue,
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array(
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array('id' => 'option1', 'value' => 'value1'),
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array('id' => 'option2', 'value' => 'value2', 'foo' => 'foo2'),
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),
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array(
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'option1' => 'value1',
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'option2' => array('value' => 'value2', 'foo' => 'foo2'),
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),
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),
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array(
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$arrayValue,
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array(
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array(
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'id' => 'option1',
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'value' => array('foo' => 'foo1', 'bar' => 'bar1'),
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),
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),
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array(
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'option1' => array('foo' => 'foo1', 'bar' => 'bar1'),
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),
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),
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array($variableValue,
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array(
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array(
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'id' => 'option1', 'value' => array('foo' => 'foo1', 'bar' => 'bar1'),
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),
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array('id' => 'option2', 'value' => 'value2'),
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),
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array(
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'option1' => array('foo' => 'foo1', 'bar' => 'bar1'),
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'option2' => 'value2',
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),
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),
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);
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}
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}
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