119 lines
2.9 KiB
PHP
119 lines
2.9 KiB
PHP
<?php
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/**
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* Combines form inputs into a key-value pair
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*/
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class DMSJsonField extends CompositeField
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{
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public function __construct($name, $children = null)
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{
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$this->setName($name);
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if ($children instanceof FieldList || is_array($children)) {
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foreach ($children as $child) {
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$this->setChildName($child);
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}
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} else {
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$children = is_array(func_get_args()) ? func_get_args() : array();
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if (!empty($children)) {
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array_shift($children);
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}
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foreach ($children as $child) {
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$this->setChildName($child);
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}
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}
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parent::__construct($children);
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}
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/**
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* Sets the name of the child object
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*
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* @param FormField $child
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*/
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private function setChildName($child)
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{
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$child->setName("{$this->getName()}[{$child->getName()}]");
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}
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public function hasData()
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{
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return true;
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}
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/**
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* Override parent's behaviour as it's no longer required
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*
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* @param array $list
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* @param bool $saveableOnly
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*/
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public function collateDataFields(&$list, $saveableOnly = false)
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{
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}
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/**
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* Recursively removed empty key-value pairs from $haystack
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*
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* @param $haystack
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*
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* @return mixed
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*/
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public function arrayFilterEmptyRecursive($haystack)
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{
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foreach ($haystack as $key => $value) {
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if (is_array($value)) {
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$haystack[$key] = $this->arrayFilterEmptyRecursive($haystack[$key]);
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}
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if (empty($haystack[$key])) {
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unset($haystack[$key]);
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}
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}
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return $haystack;
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}
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/**
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* Overrides parent behaviour to remove empty elements
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*
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* @return mixed|null|string
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*/
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public function dataValue()
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{
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$result = null;
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if (is_array($this->value)) {
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$this->value = $this->arrayFilterEmptyRecursive($this->value);
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$result = (!empty($this->value)) ? Convert::array2json($this->value) : $result;
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} else {
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$result = parent::dataValue();
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}
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return $result;
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}
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/**
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* Sets the value
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* @param mixed $value
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*
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* @return $this
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*/
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public function setValue($value)
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{
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$this->value = $value;
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if (is_string($value) && !empty($value)) {
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$value = Convert::json2array($value);
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} elseif (!is_array($value)) {
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$value = array($value);
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}
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$pattern = "/^{$this->getName()}\[(.*)\]$/";
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foreach ($this->children as $c) {
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$title = $c->getName();
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preg_match($pattern, $title, $matches);
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if (!empty($matches[1]) && isset($value[$matches[1]])) {
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$c->setValue($value[$matches[1]]);
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}
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}
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return $this;
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}
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}
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