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Ability to load nested (deep arrays) variables for inputs #1

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Ability to load nested (deep arrays) variables for inputs #1

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71 changes: 62 additions & 9 deletions lib/Twig/Extension/HTMLHelpers.php
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Original file line number Diff line number Diff line change
Expand Up @@ -100,13 +100,13 @@ public function inputTag(Twig_Environment $env, $context, $type, $name, $value=n

public function textFieldTag(Twig_Environment $env, $context, $name, $default = null, $options = array())
{
$value = isset($context[$name]) ? $context[$name] : $default;
$value = $this->getContextVariable($context, $name, $default);
return $this->inputTag($env, $context, 'text', $name, $value, $options);
}

public function textAreaTag(Twig_Environment $env, $context, $name, $default = null, $options = array())
{
$content = isset($context[$name]) ? $context[$name] : $default;
$content = $this->getContextVariable($context, $name, $default);
$options = array_merge(
array(
'name' => $name,
Expand All @@ -119,22 +119,21 @@ public function textAreaTag(Twig_Environment $env, $context, $name, $default = n
return $this->contentTag($env, $context, 'textarea', $content, $options);
}


public function hiddenFieldTag(Twig_Environment $env, $context, $name, $default = null, $options = array())
{
$value = isset($context[$name]) ? $context[$name] : $default;
$value = $this->getContextVariable($context, $name, $default);
return $this->inputTag($env, $context, 'hidden', $name, $value, $options);
}

public function passwordFieldTag(Twig_Environment $env, $context, $name = 'password', $default = null, $options = array())
{
$value = isset($context[$name]) ? $context[$name] : $default;
$value = $this->getContextVariable($context, $name, $default);
return $this->inputTag($env, $context, 'password', $name, $value, $options);
}

public function radioButtonTag(Twig_Environment $env, $context, $name, $value, $default = false, $options = array())
{
if ((isset($context[$name]) and $context[$name] === $value) or (!isset($context[$name]) and $default))
if ((null !== $this->getContextVariable($context, $name, null)) or (!isset($context[$name]) and $default))
{
$options = array_merge(array('checked' => 'checked'), $options);
}
Expand All @@ -144,7 +143,7 @@ public function radioButtonTag(Twig_Environment $env, $context, $name, $value, $

public function checkBoxTag(Twig_Environment $env, $context, $name, $value = '1', $default = false, $options = array())
{
if ((isset($context[$name]) and $context[$name] === $value) or (!isset($context['submit']) and $default))
if ((null !== $this->getContextVariable($context, $name, null)) or (!isset($context['submit']) and $default))
{
$options = array_merge(array('checked' => 'checked'), $options);
}
Expand Down Expand Up @@ -173,14 +172,14 @@ public function selectTag(Twig_Environment $env, $context, $name, $options, $def
$opts = '';
foreach ($options as $key => $label) {
$arr = array('value' => $key);
if ((isset($context[$name]) and $context[$name] === $key) or (!isset($context[$name]) and $default === $key))
if ((isset($context[$name]) and ($context[$name] === $key or (is_array($context[$name]) and in_array($key, $context[$name], true)) )) or (!isset($context[$name]) and $default === $key))
{
$arr = array_merge(array('selected' => 'selected'),$arr);
}
$opts .= $this->contentTag($env, $context, 'option', $label, $arr);
}
$html_options = array_merge(
array('name' => $name, 'id' => $name),
array('name' => empty($html_options['multiple']) ? $name : "{$name}[]", 'id' => $name),
$html_options
);
return "<select".$this->tagOptions($env, $html_options).">$opts</select>";
Expand All @@ -205,4 +204,58 @@ public function resetTag(Twig_Environment $env, $context, $value = 'Reset', $opt
}
return $this->inputTag($env, $context, 'reset', $name, $value, $options);
}

protected function getContextVariable($context, $name, $defaultValue)
{
if (FALSE === strpos($name, '[')) return isset($context[$name]) ? $context[$name] : $defaultValue;

// Parse html (array[key]) into the variable array.key
$replaces = array(
'][' => '.', // middle
']' => '', // end
'[' => '.' // beginning
);
$key = str_replace(array_keys($replaces), array_values($replaces), $name);

return $this->getNested($context, $key, $defaultValue);
}

/**
* Retrieves a nested element from an array or $default if it doesn't exist
* Ported from: axelarge/array-tools/src/Axelarge/ArrayTools/Arr.php:118
*
* <code>
* $friends = [
* 'Alice' => ['age' => 33, 'hobbies' => ['biking', 'skiing']],
* 'Bob' => ['age' => 29],
* ];
*
* Arr::getNested($friends, 'Alice.hobbies.1'); //=> 'skiing'
* Arr::getNested($friends, ['Alice', 'hobbies', 1]); //=> 'skiing'
* Arr::getNested($friends, 'Bob.hobbies.0', 'none'); //=> 'none'
* </code>
*
* @param array $array
* @param string|array $keys The key path as either an array or a dot-separated string
* @param mixed $default
* @return mixed
*/
protected function getNested($array, $keys, $default = null)
{
if (is_string($keys)) {
$keys = explode('.', $keys);
} else if ($keys === null) {
return $array;
}

foreach ($keys as $key) {
if (is_array($array) && array_key_exists($key, $array)) {
$array = $array[$key];
} else {
return $default;
}
}

return $array;
}
}