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<?php |
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namespace mindplay\kissform\Fields; |
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use mindplay\kissform\Field; |
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use mindplay\kissform\InputModel; |
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use mindplay\kissform\InputRenderer; |
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use mindplay\kissform\Validators\CheckSelected; |
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/** |
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* This class provides information about a group of `<input type="radio">` elements. |
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* |
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* Note that the markup deviates from Bootstrap standard markup, which isn't useful for styling. |
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* |
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* @link https://github.com/twbs/bootstrap/issues/19931 |
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* @link https://github.com/flatlogic/awesome-bootstrap-checkbox |
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*/ |
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class RadioGroup extends Field |
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{ |
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/** |
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* @var string[] map where option values map to option labels |
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*/ |
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protected $options; |
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/** |
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* @var string[] map of HTML attributes for the <input> tag |
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*/ |
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public $input_attr = []; |
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/** |
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* @var string[] map of HTML attributes for the <label> tag |
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*/ |
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public $label_attr = []; |
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/** |
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* @var string|null wrapper tag (e.g. "div", or NULL to disable wrapper-tags) |
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*/ |
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public $wrapper_tag = 'div'; |
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/** |
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* @var string[] map of HTML attributes for the wrapper-tag around each checkbox group |
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*/ |
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public $wrapper_attr = ['class' => 'radio']; |
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/** |
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* @param string $name field name |
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* @param string[] $options map where option values map to option labels |
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*/ |
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public function __construct($name, array $options) |
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{ |
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parent::__construct($name); |
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$this->options = $options; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function createValidators() |
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{ |
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return [new CheckSelected(array_keys($this->options))]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function renderInput(InputRenderer $renderer, InputModel $model, array $attr) |
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{ |
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$selected = $model->getInput($this); |
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$html = ''; |
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foreach ($this->options as $value => $label) { |
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$checked = is_numeric($selected) |
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? $value == $selected // loose comparison works well for NULLs and numbers |
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: $value === $selected; // strict comparison for everything else |
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$id = $renderer->getId($this, $value); |
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$group = $renderer->tag( |
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'input', |
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$renderer->mergeAttrs( |
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[ |
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'type' => 'radio', |
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'id' => $id, |
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'name' => $renderer->getName($this), |
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'value' => $value, |
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'checked' => $checked, |
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], |
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$this->input_attr, |
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$attr |
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) |
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); |
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$group .= $renderer->tag('label', $this->label_attr + ['for' => $id], $renderer->softEscape($label)); |
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if ($this->wrapper_tag) { |
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$group = $renderer->tag($this->wrapper_tag, $this->wrapper_attr, $group); |
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} |
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$html .= $group; |
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} |
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return $html; |
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} |
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} |
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mindplay-dk /
kissform
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: