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cfe09b99e5
git-svn-id: http://svn.automattic.com/wordpress/trunk@17006 1a063a9b-81f0-0310-95a4-ce76da25c4cd
878 lines
20 KiB
PHP
878 lines
20 KiB
PHP
<?php
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/**
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* Base class for displaying a list of items in an ajaxified HTML table.
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*
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* @package WordPress
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* @subpackage List_Table
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* @since 3.1.0
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*/
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/**
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* Base class for displaying a list of items in an ajaxified HTML table.
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*
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* @package WordPress
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* @subpackage List_Table
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* @since 3.1.0
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*/
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class WP_List_Table {
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/**
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* The current list of items
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*
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* @since 3.1.0
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* @var array
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* @access protected
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*/
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var $items;
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/**
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* Various information about the current table
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*
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* @since 3.1.0
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* @var array
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* @access private
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*/
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var $_args;
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/**
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* Various information needed for displaying the pagination
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*
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* @since 3.1.0
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* @var array
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* @access private
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*/
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var $_pagination_args = array();
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/**
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* The current screen
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*
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* @since 3.1.0
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* @var object
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* @access protected
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*/
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var $screen;
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/**
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* Cached bulk actions
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*
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* @since 3.1.0
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* @var array
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* @access private
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*/
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var $_actions;
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/**
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* Cached pagination output
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*
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* @since 3.1.0
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* @var string
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* @access private
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*/
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var $_pagination;
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/**
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* Constructor. The child class should call this constructor from it's own constructor
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*
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* @param array $args An associative array with information about the current table
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* @access protected
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*/
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function WP_List_Table( $args = array() ) {
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$args = wp_parse_args( $args, array(
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'plural' => '',
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'singular' => '',
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'ajax' => true
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) );
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$screen = get_current_screen();
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add_filter( "manage_{$screen->id}_columns", array( &$this, 'get_columns' ), 0 );
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if ( !$args['plural'] )
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$args['plural'] = $screen->base;
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$this->_args = $args;
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if ( $args['ajax'] ) {
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wp_enqueue_script( 'list-table' );
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add_action( 'admin_footer', array( &$this, '_js_vars' ) );
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}
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}
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/**
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* Checks the current user's permissions
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* @uses wp_die()
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*
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* @since 3.1.0
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* @access public
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*/
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function ajax_user_can() {
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die( 'function WP_List_Table::ajax_user_can() must be over-ridden in a sub-class.' );
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}
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/**
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* Prepares the list of items for displaying.
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* @uses WP_List_Table::set_pagination_args()
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*
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* @since 3.1.0
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* @access public
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*/
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function prepare_items() {
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die( 'function WP_List_Table::prepare_items() must be over-ridden in a sub-class.' );
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}
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/**
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* An internal method that sets all the necessary pagination arguments
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*
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* @param array $args An associative array with information about the pagination
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* @access protected
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*/
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function set_pagination_args( $args ) {
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$args = wp_parse_args( $args, array(
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'total_items' => 0,
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'total_pages' => 0,
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'per_page' => 0,
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) );
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if ( !$args['total_pages'] && $args['per_page'] > 0 )
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$args['total_pages'] = ceil( $args['total_items'] / $args['per_page'] );
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$this->_pagination_args = $args;
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}
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/**
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* Access the pagination args
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*
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* @since 3.1.0
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* @access public
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*
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* @param string $key
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* @return array
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*/
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function get_pagination_arg( $key ) {
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if ( 'page' == $key )
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return $this->get_pagenum();
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if ( isset( $this->_pagination_args[$key] ) )
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return $this->_pagination_args[$key];
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}
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/**
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* Whether the table has items to display or not
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*
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* @since 3.1.0
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* @access public
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*
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* @return bool
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*/
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function has_items() {
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return !empty( $this->items );
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}
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/**
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* Message to be displayed when there are no items
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*
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* @since 3.1.0
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* @access public
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*/
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function no_items() {
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_e( 'No items found.' );
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}
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/**
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* Display the search box.
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*
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* @since 3.1.0
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* @access public
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*
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* @param string $text The search button text
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* @param string $input_id The search input id
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*/
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function search_box( $text, $input_id ) {
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if ( empty( $_REQUEST['s'] ) && !$this->has_items() )
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return;
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$input_id = $input_id . '-search-input';
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?>
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<p class="search-box">
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<label class="screen-reader-text" for="<?php echo $input_id ?>"><?php echo $text; ?>:</label>
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<input type="text" id="<?php echo $input_id ?>" name="s" value="<?php _admin_search_query(); ?>" />
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<?php submit_button( $text, 'button', 'submit', false ); ?>
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</p>
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<?php
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}
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/**
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* Get an associative array ( id => link ) with the list
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* of views available on this table.
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*
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* @since 3.1.0
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* @access protected
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*
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* @return array
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*/
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function get_views() {
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return array();
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}
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/**
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* Display the bulk actions dropdown.
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*
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* @since 3.1.0
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* @access public
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*/
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function views() {
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$screen = get_current_screen();
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$views = $this->get_views();
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$views = apply_filters( 'views_' . $screen->id, $views );
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if ( empty( $views ) )
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return;
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echo "<ul class='subsubsub'>\n";
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foreach ( $views as $class => $view ) {
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$views[ $class ] = "\t<li class='$class'>$view";
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}
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echo implode( " |</li>\n", $views ) . "</li>\n";
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echo "</ul>";
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}
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/**
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* Get an associative array ( option_name => option_title ) with the list
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* of bulk actions available on this table.
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*
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* @since 3.1.0
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* @access protected
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*
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* @return array
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*/
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function get_bulk_actions() {
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return array();
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}
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/**
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* Display the bulk actions dropdown.
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*
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* @since 3.1.0
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* @access public
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*/
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function bulk_actions() {
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$screen = get_current_screen();
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if ( is_null( $this->_actions ) ) {
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$this->_actions = $this->get_bulk_actions();
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$this->_actions = apply_filters( 'bulk_actions-' . $screen->id, $this->_actions );
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$two = '';
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}
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else {
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$two = '2';
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}
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if ( empty( $this->_actions ) )
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return;
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echo "<select name='action$two'>\n";
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echo "<option value='-1' selected='selected'>" . __( 'Bulk Actions' ) . "</option>\n";
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foreach ( $this->_actions as $name => $title )
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echo "\t<option value='$name'>$title</option>\n";
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echo "</select>\n";
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submit_button( __( 'Apply' ), 'button-secondary action', "doaction$two", false );
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echo "\n";
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}
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/**
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* Get the current action selected from the bulk actions dropdown.
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*
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* @since 3.1.0
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* @access public
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*
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* @return string|bool The action name or False if no action was selected
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*/
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function current_action() {
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if ( isset( $_REQUEST['action'] ) && -1 != $_REQUEST['action'] )
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return $_REQUEST['action'];
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if ( isset( $_REQUEST['action2'] ) && -1 != $_REQUEST['action2'] )
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return $_REQUEST['action2'];
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return false;
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}
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/**
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* Generate row actions div
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*
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* @since 3.1.0
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* @access protected
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*
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* @param array $actions The list of actions
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* @param bool $always_visible Wether the actions should be always visible
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* @return string
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*/
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function row_actions( $actions, $always_visible = false ) {
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$action_count = count( $actions );
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$i = 0;
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if ( !$action_count )
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return '';
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$out = '<div class="' . ( $always_visible ? 'row-actions-visible' : 'row-actions' ) . '">';
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foreach ( $actions as $action => $link ) {
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++$i;
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( $i == $action_count ) ? $sep = '' : $sep = ' | ';
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$out .= "<span class='$action'>$link$sep</span>";
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}
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$out .= '</div>';
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return $out;
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}
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/**
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* Display a monthly dropdown for filtering items
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*
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* @since 3.1.0
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* @access protected
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*/
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function months_dropdown( $post_type ) {
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global $wpdb, $wp_locale;
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$months = $wpdb->get_results( $wpdb->prepare( "
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SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
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FROM $wpdb->posts
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WHERE post_type = %s
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ORDER BY post_date DESC
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", $post_type ) );
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$month_count = count( $months );
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if ( !$month_count || ( 1 == $month_count && 0 == $months[0]->month ) )
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return;
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$m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0;
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?>
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<select name='m'>
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<option<?php selected( $m, 0 ); ?> value='0'><?php _e( 'Show all dates' ); ?></option>
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<?php
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foreach ( $months as $arc_row ) {
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if ( 0 == $arc_row->year )
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continue;
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$month = zeroise( $arc_row->month, 2 );
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$year = $arc_row->year;
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printf( "<option %s value='%s'>%s</option>\n",
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selected( $m, $year . $month, false ),
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esc_attr( $arc_row->year . $month ),
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$wp_locale->get_month( $month ) . " $year"
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);
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}
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?>
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</select>
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<?php
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}
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/**
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* Display a view switcher
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*
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* @since 3.1.0
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* @access protected
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*/
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function view_switcher( $current_mode ) {
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$modes = array(
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'list' => __( 'List View' ),
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'excerpt' => __( 'Excerpt View' )
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);
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?>
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<input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" />
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<div class="view-switch">
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<?php
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foreach ( $modes as $mode => $title ) {
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$class = ( $current_mode == $mode ) ? 'class="current"' : '';
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echo "<a href='" . esc_url( add_query_arg( 'mode', $mode, $_SERVER['REQUEST_URI'] ) ) . "' $class><img id='view-switch-$mode' src='" . esc_url( includes_url( 'images/blank.gif' ) ) . "' width='20' height='20' title='$title' alt='$title' /></a>\n";
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}
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?>
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</div>
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<?php
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}
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/**
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* Display a comment count bubble
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*
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* @since 3.1.0
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* @access protected
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*
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* @param int $post_id
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* @param int $pending_comments
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*/
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function comments_bubble( $post_id, $pending_comments ) {
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$pending_phrase = sprintf( __( '%s pending' ), number_format( $pending_comments ) );
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if ( $pending_comments )
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echo '<strong>';
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$link = "<a href='" . add_query_arg( 'p', $post_id, admin_url('edit-comments.php') ) . "' title='$pending_phrase' class='post-com-count'><span class='comment-count'>%s</span></a>";
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comments_number(
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sprintf( $link, /* translators: comment count link */ _x( '0', 'comment count' ) ),
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sprintf( $link, /* translators: comment count link */ _x( '1', 'comment count' ) ),
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sprintf( $link, /* translators: comment count link: % will be substituted by comment count */ _x( '%', 'comment count' ) )
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);
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if ( $pending_comments )
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echo '</strong>';
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}
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/**
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* Get the current page number
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*
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* @since 3.1.0
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* @access protected
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*
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* @return int
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*/
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function get_pagenum() {
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$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
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return max( 1, $pagenum );
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}
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/**
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* Get number of items to display on a single page
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*
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* @since 3.1.0
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* @access protected
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*
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* @return int
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*/
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function get_items_per_page( $option, $default = 20 ) {
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$per_page = (int) get_user_option( $option );
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if ( empty( $per_page ) || $per_page < 1 )
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$per_page = $default;
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return (int) apply_filters( $option, $per_page );
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}
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/**
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* Display the pagination.
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*
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* @since 3.1.0
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* @access protected
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*/
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function pagination() {
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if ( $this->_pagination ) {
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echo $this->_pagination;
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return;
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}
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if ( empty( $this->_pagination_args ) )
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return;
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extract( $this->_pagination_args );
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if ( $total_pages < 2 )
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return;
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$output = '<span class="displaying-num">' . sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) ) . '</span>';
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$current = $this->get_pagenum();
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$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
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$page_links = array();
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$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
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'first-page',
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esc_attr__( 'Go to the first page' ),
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esc_url( remove_query_arg( 'paged', $current_url ) ),
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'««'
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);
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$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
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'prev-page',
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esc_attr__( 'Go to the previous page' ),
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esc_url( add_query_arg( 'paged', max( 1, $current-1 ), $current_url ) ),
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'«'
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);
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$html_current_page = sprintf( "<input class='current-page' title='%s' type='text' name='%s' value='%s' size='%d' />",
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esc_attr__( 'Current page' ),
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esc_attr( 'paged' ),
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number_format_i18n( $current ),
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strlen( $total_pages )
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);
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$html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
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$page_links[] = sprintf( _x( '%s of %s', 'paging' ), $html_current_page, $html_total_pages );
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$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
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'next-page',
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esc_attr__( 'Go to the next page' ),
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esc_url( add_query_arg( 'paged', min( $total_pages, $current+1 ), $current_url ) ),
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'»'
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);
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$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
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'last-page',
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esc_attr__( 'Go to the last page' ),
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esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
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'»»'
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);
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$output .= join( "\n", $page_links );
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$this->_pagination = "<div class='tablenav-pages'>$output</div>";
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echo $this->_pagination;
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}
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/**
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* Get a list of columns. The format is:
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* 'internal-name' => 'Title'
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*
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* @since 3.1.0
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* @access protected
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*
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* @return array
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*/
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function get_columns() {
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die( 'function WP_List_Table::get_columns() must be over-ridden in a sub-class.' );
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}
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/**
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* Get a list of sortable columns. The format is:
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* 'internal-name' => 'orderby'
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* or
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* 'internal-name' => array( 'orderby', true )
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*
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* The second format will make the initial sorting order be descending
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*
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* @since 3.1.0
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* @access protected
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*
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* @return array
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*/
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function get_sortable_columns() {
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return array();
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}
|
|
|
|
/**
|
|
* Get a list of all, hidden and sortable columns, with filter applied
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*
|
|
* @return array
|
|
*/
|
|
function get_column_info() {
|
|
if ( isset( $this->_column_headers ) )
|
|
return $this->_column_headers;
|
|
|
|
$screen = get_current_screen();
|
|
|
|
$columns = get_column_headers( $screen );
|
|
$hidden = get_hidden_columns( $screen );
|
|
|
|
$_sortable = apply_filters( "manage_{$screen->id}_sortable_columns", $this->get_sortable_columns() );
|
|
|
|
$sortable = array();
|
|
foreach ( $_sortable as $id => $data ) {
|
|
if ( empty( $data ) )
|
|
continue;
|
|
|
|
$data = (array) $data;
|
|
if ( !isset( $data[1] ) )
|
|
$data[1] = false;
|
|
|
|
$sortable[$id] = $data;
|
|
}
|
|
|
|
$this->_column_headers = array( $columns, $hidden, $sortable );
|
|
|
|
return $this->_column_headers;
|
|
}
|
|
|
|
/**
|
|
* Return number of visible columns
|
|
*
|
|
* @since 3.1.0
|
|
* @access public
|
|
*
|
|
* @return int
|
|
*/
|
|
function get_column_count() {
|
|
list ( $columns, $hidden ) = $this->get_column_info();
|
|
$hidden = array_intersect( array_keys( $columns ), array_filter( $hidden ) );
|
|
return count( $columns ) - count( $hidden );
|
|
}
|
|
|
|
/**
|
|
* Print column headers, accounting for hidden and sortable columns.
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*
|
|
* @param bool $with_id Whether to set the id attribute or not
|
|
*/
|
|
function print_column_headers( $with_id = true ) {
|
|
$screen = get_current_screen();
|
|
|
|
list( $columns, $hidden, $sortable ) = $this->get_column_info();
|
|
|
|
$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
|
|
|
|
if ( isset( $_GET['orderby'] ) )
|
|
$current_orderby = $_GET['orderby'];
|
|
else
|
|
$current_orderby = '';
|
|
|
|
if ( isset( $_GET['order'] ) && 'desc' == $_GET['order'] )
|
|
$current_order = 'desc';
|
|
else
|
|
$current_order = 'asc';
|
|
|
|
foreach ( $columns as $column_key => $column_display_name ) {
|
|
$class = array( 'manage-column', "column-$column_key" );
|
|
|
|
$style = '';
|
|
if ( in_array( $column_key, $hidden ) )
|
|
$style = 'display:none;';
|
|
|
|
$style = ' style="' . $style . '"';
|
|
|
|
if ( 'cb' == $column_key )
|
|
$class[] = 'check-column';
|
|
elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ) ) )
|
|
$class[] = 'num';
|
|
|
|
if ( isset( $sortable[$column_key] ) ) {
|
|
list( $orderby, $desc_first ) = $sortable[$column_key];
|
|
|
|
if ( $current_orderby == $orderby ) {
|
|
$order = 'asc' == $current_order ? 'desc' : 'asc';
|
|
$class[] = 'sorted';
|
|
$class[] = $current_order;
|
|
} else {
|
|
$order = $desc_first ? 'desc' : 'asc';
|
|
$class[] = 'sortable';
|
|
$class[] = $desc_first ? 'asc' : 'desc';
|
|
}
|
|
|
|
$column_display_name = '<a href="' . esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ) . '"><span>' . $column_display_name . '</span><span class="sorting-indicator"></span></a>';
|
|
}
|
|
|
|
$id = $with_id ? "id='$column_key'" : '';
|
|
|
|
if ( !empty( $class ) )
|
|
$class = "class='" . join( ' ', $class ) . "'";
|
|
|
|
echo "<th scope='col' $id $class $style>$column_display_name</th>";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Display the table
|
|
*
|
|
* @since 3.1.0
|
|
* @access public
|
|
*/
|
|
function display() {
|
|
extract( $this->_args );
|
|
|
|
$this->display_tablenav( 'top' );
|
|
|
|
?>
|
|
<table class="<?php echo implode( ' ', $this->get_table_classes() ); ?>" cellspacing="0">
|
|
<thead>
|
|
<tr>
|
|
<?php $this->print_column_headers(); ?>
|
|
</tr>
|
|
</thead>
|
|
|
|
<tfoot>
|
|
<tr>
|
|
<?php $this->print_column_headers( false ); ?>
|
|
</tr>
|
|
</tfoot>
|
|
|
|
<tbody id="the-list"<?php if ( $singular ) echo " class='list:$singular'"; ?>>
|
|
<?php $this->display_rows_or_placeholder(); ?>
|
|
</tbody>
|
|
</table>
|
|
<?php
|
|
$this->display_tablenav( 'bottom' );
|
|
}
|
|
|
|
/**
|
|
* Get a list of CSS classes for the <table> tag
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*
|
|
* @return array
|
|
*/
|
|
function get_table_classes() {
|
|
return array( 'widefat', 'fixed', $this->_args['plural'] );
|
|
}
|
|
|
|
/**
|
|
* Generate the table navigation above or below the table
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*/
|
|
function display_tablenav( $which ) {
|
|
if ( 'top' == $which )
|
|
wp_nonce_field( 'bulk-' . $this->_args['plural'] );
|
|
?>
|
|
<div class="tablenav <?php echo esc_attr( $which ); ?>">
|
|
|
|
<div class="alignleft actions">
|
|
<?php $this->bulk_actions( $which ); ?>
|
|
</div>
|
|
|
|
<?php
|
|
$this->extra_tablenav( $which );
|
|
$this->pagination( $which );
|
|
?>
|
|
|
|
<br class="clear" />
|
|
</div>
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Extra controls to be displayed between bulk actions and pagination
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*/
|
|
function extra_tablenav( $which ) {}
|
|
|
|
/**
|
|
* Generate the <tbody> part of the table
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*/
|
|
function display_rows_or_placeholder() {
|
|
if ( $this->has_items() ) {
|
|
$this->display_rows();
|
|
} else {
|
|
echo '<tr class="no-items"><td colspan="2">';
|
|
$this->no_items();
|
|
echo '</td></tr>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate the table rows
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*/
|
|
function display_rows() {
|
|
foreach ( $this->items as $item )
|
|
$this->single_row( $item );
|
|
}
|
|
|
|
/**
|
|
* Generates content for a single row of the table
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*
|
|
* @param object $item The current item
|
|
*/
|
|
function single_row( $item ) {
|
|
static $row_class = '';
|
|
$row_class = ( $row_class == '' ? ' class="alternate"' : '' );
|
|
|
|
echo '<tr' . $row_class . '>';
|
|
echo $this->single_row_columns( $item );
|
|
echo '</tr>';
|
|
}
|
|
|
|
/**
|
|
* Generates the columns for a single row of the table
|
|
*
|
|
* @since 3.1.0
|
|
* @access protected
|
|
*
|
|
* @param object $item The current item
|
|
*/
|
|
function single_row_columns( $item ) {
|
|
list( $columns, $hidden ) = $this->get_column_info();
|
|
|
|
foreach ( $columns as $column_name => $column_display_name ) {
|
|
$class = "class='$column_name column-$column_name'";
|
|
|
|
$style = '';
|
|
if ( in_array( $column_name, $hidden ) )
|
|
$style = ' style="display:none;"';
|
|
|
|
$attributes = "$class$style";
|
|
|
|
if ( 'cb' == $column_name ) {
|
|
echo '<th scope="row" class="check-column">';
|
|
echo $this->column_cb( $item );
|
|
echo '</th>';
|
|
}
|
|
elseif ( method_exists( $this, 'column_' . $column_name ) ) {
|
|
echo "<td $attributes>";
|
|
echo call_user_func( array( &$this, 'column_' . $column_name ), $item );
|
|
echo "</td>";
|
|
}
|
|
else {
|
|
echo "<td $attributes>";
|
|
echo $this->column_default( $item, $column_name );
|
|
echo "</td>";
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle an incoming ajax request (called from admin-ajax.php)
|
|
*
|
|
* @since 3.1.0
|
|
* @access public
|
|
*/
|
|
function ajax_response() {
|
|
$this->prepare_items();
|
|
|
|
extract( $this->_args );
|
|
extract( $this->_pagination_args );
|
|
|
|
ob_start();
|
|
$this->display_rows_or_placeholder();
|
|
$rows = ob_get_clean();
|
|
|
|
$response = array( 'rows' => $rows );
|
|
|
|
if ( isset( $total_items ) )
|
|
$response['total_items_i18n'] = sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) );
|
|
|
|
if ( isset( $total_pages ) ) {
|
|
$response['total_pages'] = $total_pages;
|
|
$response['total_pages_i18n'] = number_format_i18n( $total_pages );
|
|
}
|
|
|
|
die( json_encode( $response ) );
|
|
}
|
|
|
|
/**
|
|
* Send required variables to JavaScript land
|
|
*
|
|
* @access private
|
|
*/
|
|
function _js_vars() {
|
|
$args = array(
|
|
'class' => get_class( $this ),
|
|
'screen' => get_current_screen()
|
|
);
|
|
|
|
printf( "<script type='text/javascript'>list_args = %s;</script>\n", json_encode( $args ) );
|
|
}
|
|
}
|
|
?>
|