124 lines
2.6 KiB
PHP
124 lines
2.6 KiB
PHP
<?php namespace Backend\FormWidgets;
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use Backend\Classes\FormField;
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use Backend\Classes\FormWidgetBase;
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/**
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* Repeater Form Widget
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*/
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class Repeater extends FormWidgetBase
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{
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const INDEX_PREFIX = '___index_';
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//
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// Configurable properties
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//
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/**
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* @var array Form field configuration
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*/
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public $form;
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//
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// Object properties
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//
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/**
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* {@inheritDoc}
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*/
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protected $defaultAlias = 'repeater';
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protected $indexCount = 0;
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protected $formWidgets = [];
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/**
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* {@inheritDoc}
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*/
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public function init()
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{
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$this->fillFromConfig([
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'form',
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]);
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$this->processExistingItems();
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}
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/**
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* {@inheritDoc}
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*/
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public function render()
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{
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$this->prepareVars();
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return $this->makePartial('repeater');
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}
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/**
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* Prepares the form widget view data
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*/
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public function prepareVars()
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{
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$this->vars['indexName'] = self::INDEX_PREFIX.$this->formField->getName(false).'[]';
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}
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/**
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* {@inheritDoc}
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*/
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public function loadAssets()
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{
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$this->addCss('css/repeater.css', 'core');
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$this->addJs('js/repeater.js', 'core');
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}
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/**
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* {@inheritDoc}
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*/
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public function getSaveValue($value)
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{
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return array_values($value);
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}
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protected function processExistingItems()
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{
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$itemIndexes = post(self::INDEX_PREFIX.$this->formField->getName(false), $this->getLoadValue());
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if (!is_array($itemIndexes)) return;
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foreach ($itemIndexes as $itemIndex) {
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$this->makeFormWidget($itemIndex);
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$this->indexCount = max((int) $itemIndex, $this->indexCount);
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}
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}
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protected function makeFormWidget($index = 0)
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{
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$config = $this->makeConfig($this->form);
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$config->model = $this->model;
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$config->alias = $this->alias . 'Form'.$index;
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$config->arrayName = $this->formField->getName().'['.$index.']';
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$widget = $this->makeWidget('Backend\Widgets\Form', $config);
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$widget->bindToController();
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return $this->formWidgets[$index] = $widget;
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}
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public function onAddItem()
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{
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$this->indexCount++;
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$this->prepareVars();
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$this->vars['widget'] = $this->makeFormWidget($this->indexCount);
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$this->vars['indexValue'] = $this->indexCount;
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$itemContainer = '@#'.$this->getId('items');
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return [$itemContainer => $this->makePartial('repeater_item')];
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}
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public function onRemoveItem()
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{
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// Useful for deleting relations
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}
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}
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