574 lines
14 KiB
PHP
574 lines
14 KiB
PHP
<?php
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namespace App\Services;
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use Option;
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use ReflectionClass;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Str;
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use BadMethodCallException;
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class OptionForm
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{
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/**
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* Pass this value to tell generator to
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* load text from language files automatically.
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*/
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const AUTO_DETECT = 0x97ab1;
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protected $id;
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protected $title;
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protected $hint;
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protected $type = 'primary';
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protected $items = [];
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protected $values = [];
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protected $buttons = [];
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protected $messages = [];
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protected $alwaysCallback = null;
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protected $renderWithOutTable = false;
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protected $renderInputTagsOnly = false;
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protected $renderWithOutSubmitButton = false;
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/**
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* Create a new option form instance.
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*
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* @param string $id
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* @param string $title
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* @return void
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*/
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public function __construct($id, $title)
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{
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$this->id = $id;
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if ($title == self::AUTO_DETECT) {
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$this->title = trans("options.$this->id.title");
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} else {
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$this->title = $title;
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}
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}
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/**
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* Add option item to the form dynamically.
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*
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* @param string $method
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* @param array $params
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* @return OptionItem
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*
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* @throws \BadMethodCallException
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*/
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public function __call($method, $params)
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{
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if (!in_array($method, ['text', 'checkbox', 'textarea', 'select', 'group'])) {
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throw new BadMethodCallException("Method [$method] does not exist on option form.");
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}
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// assign name for option item
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if (!isset($params[1]) || Arr::get($params, 1) == OptionForm::AUTO_DETECT) {
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$params[1] = Arr::get(trans("options.$this->id.$params[0]"), 'title', trans("options.$this->id.$params[0]"));
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}
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$class = new ReflectionClass('App\Services\OptionForm'.Str::title($method));
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// use ReflectionClass to create a new OptionFormItem instance
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$item = $class->newInstanceArgs($params);
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$item->setParentId($this->id);
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$this->items[] = $item;
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return $item;
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}
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/**
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* Set the box type of option form.
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*
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* @param string $type
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* @return $this
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*/
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public function type($type)
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{
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$this->type = $type;
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return $this;
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}
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/**
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* Add a hint to option form.
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*
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* @param array $info
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* @return $this
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*/
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public function hint($hintContent = self::AUTO_DETECT)
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{
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if ($hintContent == self::AUTO_DETECT) {
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$hintContent = trans("options.$this->id.hint");
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}
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$this->hint = view('common.option-form.hint')->with('hint', $hintContent)->render();
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return $this;
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}
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/**
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* Add a piece of data to the option form.
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*
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* @param string|array $key
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* @param mixed $value
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* @return $this
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*/
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public function with($key, $value = null)
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{
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if (is_array($key)) {
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$this->values = array_merge($this->values, $key);
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} else {
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$this->values[$key] = $value;
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}
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return $this;
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}
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/**
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* Add a button at the footer of option form.
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*
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* @param array $info
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* @return $this
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*/
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public function addButton(array $info)
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{
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$info = array_merge([
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'style' => 'default',
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'class' => [],
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'href' => '',
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'text' => 'BUTTON',
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'type' => 'button',
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'name' => ''
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], $info);
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$classes = "btn btn-{$info['style']} ".implode(' ', (array) Arr::get($info, 'class'));
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if ($info['href']) {
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$this->buttons[] = "<a href='{$info['href']}' class='$classes'>{$info['text']}</a>";
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} else {
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$this->buttons[] = "<button type='{$info['type']}' name='{$info['name']}' class='$classes'>{$info['text']}</button>";
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}
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return $this;
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}
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/**
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* Add a message to the top of option form.
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*
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* @param string $msg
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* @param string $style
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* @return $this
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*/
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public function addMessage($msg = self::AUTO_DETECT, $style = "info")
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{
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if ($msg == self::AUTO_DETECT) {
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$msg = trans("options.$this->id.message");
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}
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$this->messages[] = "<div class='callout callout-$style'>$msg</div>";
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return $this;
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}
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/**
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* Add callback which will be always executed.
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*
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* @param callable $callback
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* @return $this
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*/
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public function always(callable $callback)
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{
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$this->alwaysCallback = $callback;
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return $this;
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}
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/**
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* Parse id formatted as *[*]. Return id & offset when succeed.
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*
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* @param string $id
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* @return bool|array
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*/
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protected function parseIdWithOffset($id)
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{
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preg_match('/(.*)\[(.*)\]/', $id, $matches);
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if (isset($matches[2])) {
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return [
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'id' => $matches[1],
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'offset' => $matches[2]
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];
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}
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return false;
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}
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/**
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* Handle the HTTP post request and update modified options.
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*
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* @param callable $callback
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* @return $this
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*/
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public function handle(callable $callback = null)
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{
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if (Arr::get($_POST, 'option') == $this->id) {
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if (!is_null($callback)) {
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call_user_func($callback, $this);
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}
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$postOptionQueue = [];
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$arrayOptionQueue = [];
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foreach ($this->items as $item) {
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if ($item instanceof OptionFormGroup) {
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foreach ($item->items as $innerItem) {
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if ($innerItem['type'] == "text") {
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$postOptionQueue[] = new OptionFormText($innerItem['id']);
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}
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}
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continue;
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}
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// push item to the queue
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$postOptionQueue[] = $item;
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}
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foreach ($postOptionQueue as $item) {
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if ($item instanceof OptionFormCheckbox && !isset($_POST[$item->id])) {
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// preset value for checkboxes which are not checked
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$_POST[$item->id] = "false";
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}
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// Str::is('*[*]', $item->id)
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if (false !== ($result = $this->parseIdWithOffset($item->id))) {
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// Push array option value to cache.
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// Values of post ids like *[*] is collected as arrays in $_POST
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// automatically by Laravel.
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$arrayOptionQueue[$result['id']] = $_POST[$result['id']];
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continue;
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}
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// compare with raw option value
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if (($data = Arr::get($_POST, $item->id)) != option($item->id, null, true)) {
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Option::set($item->id, $data);
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}
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}
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foreach ($arrayOptionQueue as $key => $value) {
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Option::set($key, serialize($value));
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}
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$this->addMessage(trans('options.option-saved'), 'success');
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}
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return $this;
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}
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/**
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* Load value from $this->values & options by given id.
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*
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* @param string $id
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* @return mixed
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*/
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protected function getValueById($id)
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{
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if (false === ($result = $this->parseIdWithOffset($id))) {
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return Arr::get($this->values, $id, option($id));
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} else {
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$option = Arr::get(
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$this->values,
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$result['id'],
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// fallback to load from options
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@unserialize(option($result['id']))
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);
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return Arr::get($option, $result['offset']);
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}
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}
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/**
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* Assign value for option items whose value haven't been set.
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*
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* @return void
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*/
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protected function assignValues()
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{
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// load values for items if not set manually
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foreach ($this->items as $item) {
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if ($item instanceof OptionFormGroup) {
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foreach ($item->items as &$groupItem) {
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if ($groupItem['id'] && is_null($groupItem['value'])) {
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$groupItem['value'] = $this->getValueById($groupItem['id']);
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}
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}
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continue;
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}
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if (is_null($item->value)) {
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$item->value = $this->getValueById($item->id);
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}
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}
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}
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public function renderWithOutTable()
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{
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$this->renderWithOutTable = true;
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return $this;
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}
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public function renderInputTagsOnly()
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{
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$this->renderInputTagsOnly = true;
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return $this;
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}
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public function renderWithOutSubmitButton()
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{
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$this->renderWithOutSubmitButton = true;
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return $this;
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}
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/**
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* Get the string contents of the option form.
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*
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* @return string
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*/
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public function render()
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{
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if (!is_null($this->alwaysCallback)) {
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call_user_func($this->alwaysCallback, $this);
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}
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// attach submit button to the form
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if (!$this->renderWithOutSubmitButton) {
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$this->addButton([
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'style' => 'primary',
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'text' => trans('general.submit'),
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'type' => 'submit',
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'name' => 'submit'
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]);
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}
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$this->assignValues();
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return view('common.option-form.main')->with(array_merge(get_object_vars($this)))->render();
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}
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/**
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* Get the string contents of the option form.
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*
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* @return string
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*/
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public function __toString()
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{
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return $this->render();
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}
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}
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class OptionFormItem
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{
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public $id;
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public $name;
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public $hint;
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public $value = null;
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public $disabled;
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public $description;
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protected $parentId;
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public function __construct($id, $name = null)
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{
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$this->id = $id;
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$this->name = $name;
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}
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public function setParentId($id)
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{
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$this->parentId = $id;
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return $this;
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}
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public function value($value)
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{
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$this->value = $value;
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return $this;
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}
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public function hint($hintContent = OptionForm::AUTO_DETECT)
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{
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if ($hintContent == OptionForm::AUTO_DETECT) {
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$hintContent = trans("options.$this->parentId.$this->id.hint");
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}
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$this->hint = view('common.option-form.hint')->with('hint', $hintContent)->render();
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return $this;
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}
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public function disabled($disabled = "disabled")
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{
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$this->disabled = "disabled=\"$disabled\"";
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return $this;
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}
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public function description($description = OptionForm::AUTO_DETECT)
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{
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if ($description == OptionForm::AUTO_DETECT) {
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$description = trans("options.$this->parentId.$this->id.description");
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}
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$this->description = $description;
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return $this;
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}
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/**
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* Render option item. Should be extended.
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*
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* @return \Illuminate\View\View|string
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*/
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public function render()
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{
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return;
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}
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}
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class OptionFormText extends OptionFormItem
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{
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public function render()
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{
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return view('common.option-form.text')->with([
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'id' => $this->id,
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'value' => $this->value,
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'disabled' => $this->disabled
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]);
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}
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}
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class OptionFormCheckbox extends OptionFormItem
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{
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protected $label;
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public function label($label = OptionForm::AUTO_DETECT)
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{
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if ($label == OptionForm::AUTO_DETECT) {
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$label = trans("options.$this->parentId.$this->id.label");
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}
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$this->label = $label;
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return $this;
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}
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public function render()
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{
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return view('common.option-form.checkbox')->with([
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'id' => $this->id,
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'value' => $this->value,
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'label' => $this->label,
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'disabled' => $this->disabled
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]);
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}
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}
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class OptionFormTextarea extends OptionFormItem
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{
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protected $rows = 3;
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public function rows($rows)
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{
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$this->rows = $rows;
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return $this;
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}
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public function render()
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{
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return view('common.option-form.textarea')->with([
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'id' => $this->id,
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'rows' => $this->rows,
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'value' => $this->value,
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'disabled' => $this->disabled
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]);
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}
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}
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class OptionFormSelect extends OptionFormItem
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{
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protected $options;
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public function option($value, $name)
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{
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$this->options[] = compact('value', 'name');
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return $this;
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}
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public function render()
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{
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return view('common.option-form.select')->with([
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'id' => $this->id,
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'options' => $this->options,
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'selected' => $this->value,
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'disabled' => $this->disabled
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]);
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}
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}
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class OptionFormGroup extends OptionFormItem
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{
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public $items = [];
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public function text($id, $value = null)
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{
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$this->items[] = ['type' => 'text', 'id' => $id, 'value' => $value];
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return $this;
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}
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public function addon($value = OptionForm::AUTO_DETECT)
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{
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if ($value == OptionForm::AUTO_DETECT) {
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$value = trans("options.$this->parentId.$this->id.addon");
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}
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$this->items[] = ['type' => 'addon', 'id' => null, 'value' => $value];
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return $this;
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}
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public function render()
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{
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$rendered = [];
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foreach ($this->items as $item) {
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if ($item['id'] && is_null($item['value'])) {
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$item['value'] = option($item['id']);
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}
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$rendered[] = view('common.option-form.'.$item['type'])->with([
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'id' => $item['id'],
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'value' => $item['value']
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]);
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}
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return view('common.option-form.group')->with('items', $rendered);
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}
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}
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