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<?php |
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/** |
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* The file contains the class of Factory Meta Value Provider. |
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* |
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* @author Alex Kovalev <[email protected]> |
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* @copyright (c) 2018, Webcraftic Ltd |
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* |
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* @package factory-forms |
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* @since 1.0.0 |
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*/ |
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|
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// Exit if accessed directly |
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if( !defined('ABSPATH') ) { |
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exit; |
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} |
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|
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if( !class_exists('Wbcr_FactoryForms480_OptionsValueProvider') ) { |
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|
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/** |
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* Factory Meta Value Provider |
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* |
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* This provide works with meta values like a lazy key-value storage and |
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* provides methods to commit changes on demand. It increases perfomance on form saving. |
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* |
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* @since 1.0.0 |
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*/ |
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class Wbcr_FactoryForms480_MetaValueProvider implements Wbcr_IFactoryForms480_ValueProvider { |
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|
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|
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public $scope; |
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|
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protected $post_id; |
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|
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/** |
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* Values to save $metaName => $metaValue |
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* @var array |
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*/ |
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private $values = array(); |
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|
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/** |
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* Chanched meta keys (indexed array) |
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* @var array |
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*/ |
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private $keys = array(); |
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|
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private $meta = array(); |
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|
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|
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/** |
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* Creates a new instance of a meta value provider. |
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* |
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* @param array $options |
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*/ |
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public function __construct($options = array()) |
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{ |
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global $post; |
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|
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$this->scope = (isset($options['scope'])) |
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? $options['scope'] |
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: null; |
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|
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$this->scope = preg_replace('/\_meta\_box$/', '', $this->formatCamelCase($this->scope)); |
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|
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/*$this->post_id = (isset($options['post_id'])) |
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? $options['post_id'] |
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: $post->ID; |
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|
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// the second parameter for compatibility with wordpress 3.0 |
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$temp = get_post_meta($this->post_id, '', true); |
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|
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foreach($temp as $key => &$content) { |
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if( strpos($key, $this->scope) === 0 ) { |
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$this->meta[$key] = $content; |
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} |
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}*/ |
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|
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$this->init(); |
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} |
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|
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/** |
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* Initizalize an instance of the provider. |
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* This method should be invoked before the provider usage. |
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* |
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* @param bool $post_id |
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*/ |
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public function init($post_id = false) |
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{ |
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global $post; |
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|
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$this->post_id = $post_id |
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? $post_id |
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: $post->ID; |
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|
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// the second parameter for compatibility with wordpress 3.0 |
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$temp = get_post_meta($this->post_id, '', true); |
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|
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foreach($temp as $key => &$content) { |
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if( strpos($key, $this->scope) === 0 ) { |
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$this->meta[$key] = $content; |
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} |
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} |
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} |
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|
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/** |
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* Saves changes into a database. |
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* The method is optimized for bulk updates. |
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*/ |
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public function saveChanges() |
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{ |
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|
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$this->deleteValues(); |
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$this->insertValues(); |
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/** |
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* foreach ($this->values as $key => $value) { |
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* update_post_meta($this->postId, $key, $value); |
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* } |
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*/ |
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} |
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|
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/** |
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* Removes all actual values from a database. |
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*/ |
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private function deleteValues() |
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{ |
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if( count($this->keys) == 0 ) { |
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return; |
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} |
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|
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global $wpdb; |
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|
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$values = array(); |
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$keys[] = $this->post_id; |
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|
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for($i = 0; $i < count($this->keys); $i++) { |
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$values[] = '%s'; |
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$keys[] = $this->keys[$i]; |
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} |
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|
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$clause = implode(',', $values); |
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$wpdb->query($wpdb->prepare("DELETE FROM {$wpdb->postmeta} WHERE post_id='%d' AND meta_key IN ($clause)", $keys)); |
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} |
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|
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/** |
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* /** |
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* Inserts new values by using bulk insert directly into a database. |
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* |
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* @return bool|false|int |
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*/ |
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private function insertValues() |
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{ |
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global $wpdb; |
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|
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$sql = "INSERT INTO {$wpdb->postmeta} (post_id, meta_key, meta_value) VALUES "; |
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$rows = array(); |
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|
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foreach($this->values as $meta_key => $meta_value) { |
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if( is_array($meta_value) ) { |
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foreach($meta_value as $value) { |
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$rows[] = $wpdb->prepare('(%d,%s,%s)', $this->post_id, $meta_key, $value); |
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} |
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} else { |
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$rows[] = $wpdb->prepare('(%d,%s,%s)', $this->post_id, $meta_key, $meta_value); |
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} |
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} |
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|
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if( empty($rows) ) { |
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return false; |
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} |
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|
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$sql = $sql . implode(',', $rows); |
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|
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return $wpdb->query($sql); |
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} |
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|
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/** |
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* @param string $name |
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* @param null $default |
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* @param bool $multiple |
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* @return array|int|null |
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*/ |
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public function getValue($name, $default = null, $multiple = false) |
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{ |
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if( is_array($name) ) { |
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|
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$values = array(); |
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$index = 0; |
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|
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foreach($name as $item) { |
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$item_default = ($default && is_array($default) && isset($default[$index])) |
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? $default[$index] |
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: null; |
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|
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$values[] = $this->getValueBySingleName($item, $item_default, $multiple); |
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$index++; |
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} |
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|
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return $values; |
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} |
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|
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$value = $this->getValueBySingleName($name, $default, $multiple); |
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|
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return $value; |
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} |
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|
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/** |
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* @param $single_name |
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* @param null $default |
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* @param bool $multiple |
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* @return int|null |
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*/ |
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protected function getValueBySingleName($single_name, $default = null, $multiple = false) |
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{ |
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|
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$value = isset($this->meta[$this->scope . '_' . $single_name]) |
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? ($multiple) |
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? $this->meta[$this->scope . '_' . $single_name] |
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: $this->meta[$this->scope . '_' . $single_name][0] |
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: $default; |
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|
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if( $value === 'true' ) { |
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$value = 1; |
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} |
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if( $value === 'false' ) { |
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$value = 0; |
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} |
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|
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return $value; |
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} |
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|
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/** |
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* @param string $name |
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* @param mixed $value |
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*/ |
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public function setValue($name, $value) |
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{ |
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|
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if( is_array($name) ) { |
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$index = 0; |
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|
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foreach($name as $item) { |
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$itemValue = ($value && is_array($value) && isset($value[$index])) |
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? $value[$index] |
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: null; |
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|
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$this->setValueBySingleName($item, $itemValue); |
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$index++; |
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} |
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|
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return; |
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} |
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|
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$this->setValueBySingleName($name, $value); |
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|
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return; |
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} |
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|
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/** |
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* @param string $single_name |
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* @param mixed $singe_value |
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*/ |
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protected function setValueBySingleName($single_name, $singe_value) |
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{ |
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$name = $this->scope . '_' . $single_name; |
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|
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if( is_array($singe_value) ) { |
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|
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foreach($singe_value as $index => $value) { |
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|
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$singe_value[$index] = empty($singe_value[$index]) |
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? $singe_value[$index] |
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: stripslashes($singe_value[$index]); |
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} |
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|
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$value = $singe_value; |
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} else { |
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$value = empty($singe_value) |
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? $singe_value |
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: stripslashes($singe_value); |
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} |
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|
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$this->values[$name] = $value; |
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$this->keys[] = $name; |
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} |
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|
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/** |
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* @param string $string |
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* @return string |
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*/ |
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private function formatCamelCase($string) |
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{ |
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$output = ""; |
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foreach(str_split($string) as $char) { |
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if( strtoupper($char) == $char && !in_array($char, array('_', '-')) ) { |
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$output .= "_"; |
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} |
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$output .= $char; |
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} |
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$output = strtolower($output); |
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|
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return $output; |
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} |
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} |
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} |
