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<?php |
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/** |
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* The settings page class |
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* |
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* @license GPLv2 or later |
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* @since 0.2 |
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*/ |
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class CPT_Date_Archive_Settings { |
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/** |
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* A singleton instance |
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* |
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* @var CPT_Date_Archive_Settings |
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* @static |
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* @access private |
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* @since 0.2 |
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*/ |
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private static $instance = null; |
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/** |
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* The page object |
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* |
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* @var stdClass |
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* @access private |
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* @since 0.2 |
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*/ |
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private $page; |
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/** |
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* The class constructor |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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protected function __construct() { |
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add_action( 'admin_menu', array( $this, 'admin_menu' ) ); |
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add_action( 'update_option_cpt_date_archive_post_types', array( $this, 'update_option' ) ); |
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$this->page = new stdClass; |
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$this->page->id = 'cpt_date_archives'; |
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} |
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/** |
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* Add the options page, options groups, sections, and fields |
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* |
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* Hooked to WP admin_menu action |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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public function admin_menu() { |
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register_setting( $this->page->id, 'cpt_date_archive_post_types', array( $this, 'sanitize_input' ) ); |
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add_options_page( __( 'CPT Date Archives Settings', 'cpt_date_archives' ), __( 'CPT Date Archives', 'cpt_date_archives' ), 'manage_options', $this->page->id, array( $this, 'render' ) ); |
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add_settings_section( 'general', __( 'General', 'cpt_date_archives' ), null, $this->page->id ); |
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add_settings_field( 'post-types', __( 'Post Types', 'cpt_date_archives' ), array( $this, 'render_field_post_types' ), $this->page->id, 'general' ); |
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} |
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/** |
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* Render the settings page |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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public function render() { |
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$page = $this->page; |
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include dirname( __DIR__ ) . '/templates/settings-page.php'; |
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} |
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/** |
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* Render the post types field |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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public function render_field_post_types() { |
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$post_types = get_post_types( array( 'public' => 'true', '_builtin' => false ), 'objects' ); |
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$selected = $this->get_post_type_objects(); |
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esc_html_e( __( 'Inputs are disabled for post types that do not support archives.', 'cpt_date_archive_post_types' ) ); |
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foreach ( $post_types as $post_type ) { |
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if ( $this->has_date_archive( $post_type ) ) { |
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$post_type->checked = true; |
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} |
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include dirname( __DIR__ ) . '/templates/post-types-field.php'; |
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} |
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} |
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/** |
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* Sanitize the post types field input |
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* |
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* @param array $input |
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* @access public |
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* @since 0.2 |
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*/ |
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public function sanitize_input( $input ) { |
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if ( ! empty( $input ) ) { |
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foreach ( $input as $key => $post_type ) { |
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$input[ $key ] = sanitize_text_field( $post_type ); |
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} |
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} |
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return $input; |
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} |
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/** |
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* Get the post type objects that are set to support date archives |
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* |
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* @return stdClass[] |
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* @access public |
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* @since 0.2 |
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*/ |
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public function get_post_type_objects() { |
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$post_types = $this->get_post_types(); |
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foreach ( $post_types as $key => $post_type ) { |
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$post_types[ $key ] = get_post_type_object( $post_type ); |
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} |
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return $post_types; |
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} |
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/** |
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* Get the post post type names that are set to support date archives |
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* |
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* @return string[] |
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* @access public |
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* @since 0.2 |
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*/ |
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public function get_post_types() { |
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return get_option( 'cpt_date_archive_post_types', array() ); |
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} |
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/** |
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* Does a particular post type have a date archive? |
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* |
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* @return bool |
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* @access public |
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* @since 0.2 |
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*/ |
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public function has_date_archive( $post_type ) { |
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$value = false; |
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if ( ! is_object( $post_type ) ) { |
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$post_type = get_post_type_object( $post_type ); |
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} |
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if ( in_array( $post_type->name, $this->get_post_types() ) ) { |
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$value = true; |
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} |
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return $value; |
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} |
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/** |
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* Delete the rewrite rules when updating the plugin settings |
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* |
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* Hooked to WP 'updated_option_cpt_date_archive_post_types' action. |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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public function update_option() { |
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delete_option( 'rewrite_rules' ); |
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} |
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/** |
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* Prevent cloning of the singleton instance |
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* |
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* @access private |
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* @since 0.2 |
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*/ |
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private function __clone() {} |
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/** |
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* Prevent unserializing of the singleton instance |
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* |
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* @access private |
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* @since 0.2 |
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*/ |
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private function __wakeup () {} |
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/** |
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* Singleton model |
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* |
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* @access public |
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* @since 0.2 |
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*/ |
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public static function init() { |
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if ( ! isset( self::$instance ) ) { |
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self::$instance = new CPT_Date_Archive_Settings; |
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} |
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return self::$instance; |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.