675 lines
20 KiB
PHP
675 lines
20 KiB
PHP
<?php
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if ( ! class_exists( 'WP_List_Table' ) ) {
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require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
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}
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/**
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* Action Scheduler Abstract List Table class
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*
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* This abstract class enhances WP_List_Table making it ready to use.
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*
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* By extending this class we can focus on describing how our table looks like,
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* which columns needs to be shown, filter, ordered by and more and forget about the details.
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*
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* This class supports:
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* - Bulk actions
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* - Search
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* - Sortable columns
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* - Automatic translations of the columns
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*
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* @codeCoverageIgnore
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* @since 2.0.0
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*/
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abstract class ActionScheduler_Abstract_ListTable extends WP_List_Table {
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/**
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* The table name
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*/
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protected $table_name;
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/**
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* Package name, used to get options from WP_List_Table::get_items_per_page.
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*/
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protected $package;
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/**
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* How many items do we render per page?
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*/
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protected $items_per_page = 10;
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/**
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* Enables search in this table listing. If this array
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* is empty it means the listing is not searchable.
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*/
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protected $search_by = array();
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/**
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* Columns to show in the table listing. It is a key => value pair. The
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* key must much the table column name and the value is the label, which is
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* automatically translated.
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*/
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protected $columns = array();
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/**
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* Defines the row-actions. It expects an array where the key
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* is the column name and the value is an array of actions.
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*
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* The array of actions are key => value, where key is the method name
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* (with the prefix row_action_<key>) and the value is the label
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* and title.
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*/
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protected $row_actions = array();
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/**
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* The Primary key of our table
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*/
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protected $ID = 'ID';
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/**
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* Enables sorting, it expects an array
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* of columns (the column names are the values)
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*/
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protected $sort_by = array();
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protected $filter_by = array();
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/**
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* @var array The status name => count combinations for this table's items. Used to display status filters.
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*/
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protected $status_counts = array();
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/**
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* @var array Notices to display when loading the table. Array of arrays of form array( 'class' => {updated|error}, 'message' => 'This is the notice text display.' ).
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*/
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protected $admin_notices = array();
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/**
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* @var string Localised string displayed in the <h1> element above the able.
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*/
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protected $table_header;
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/**
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* Enables bulk actions. It must be an array where the key is the action name
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* and the value is the label (which is translated automatically). It is important
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* to notice that it will check that the method exists (`bulk_$name`) and will throw
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* an exception if it does not exists.
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*
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* This class will automatically check if the current request has a bulk action, will do the
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* validations and afterwards will execute the bulk method, with two arguments. The first argument
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* is the array with primary keys, the second argument is a string with a list of the primary keys,
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* escaped and ready to use (with `IN`).
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*/
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protected $bulk_actions = array();
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/**
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* Makes translation easier, it basically just wraps
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* `_x` with some default (the package name).
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*
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* @deprecated 3.0.0
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*/
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protected function translate( $text, $context = '' ) {
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return $text;
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}
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/**
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* Reads `$this->bulk_actions` and returns an array that WP_List_Table understands. It
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* also validates that the bulk method handler exists. It throws an exception because
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* this is a library meant for developers and missing a bulk method is a development-time error.
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*/
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protected function get_bulk_actions() {
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$actions = array();
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foreach ( $this->bulk_actions as $action => $label ) {
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if ( ! is_callable( array( $this, 'bulk_' . $action ) ) ) {
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throw new RuntimeException( "The bulk action $action does not have a callback method" );
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}
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$actions[ $action ] = $label;
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}
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return $actions;
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}
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/**
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* Checks if the current request has a bulk action. If that is the case it will validate and will
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* execute the bulk method handler. Regardless if the action is valid or not it will redirect to
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* the previous page removing the current arguments that makes this request a bulk action.
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*/
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protected function process_bulk_action() {
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global $wpdb;
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// Detect when a bulk action is being triggered.
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$action = $this->current_action();
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if ( ! $action ) {
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return;
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}
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check_admin_referer( 'bulk-' . $this->_args['plural'] );
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$method = 'bulk_' . $action;
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if ( array_key_exists( $action, $this->bulk_actions ) && is_callable( array( $this, $method ) ) && ! empty( $_GET['ID'] ) && is_array( $_GET['ID'] ) ) {
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$ids_sql = '(' . implode( ',', array_fill( 0, count( $_GET['ID'] ), '%s' ) ) . ')';
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$this->$method( $_GET['ID'], $wpdb->prepare( $ids_sql, $_GET['ID'] ) );
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}
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wp_redirect( remove_query_arg(
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array( '_wp_http_referer', '_wpnonce', 'ID', 'action', 'action2' ),
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wp_unslash( $_SERVER['REQUEST_URI'] )
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) );
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exit;
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}
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/**
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* Default code for deleting entries.
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* validated already by process_bulk_action()
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*/
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protected function bulk_delete( array $ids, $ids_sql ) {
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$store = ActionScheduler::store();
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foreach ( $ids as $action_id ) {
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$store->delete( $action_id );
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}
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}
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/**
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* Prepares the _column_headers property which is used by WP_Table_List at rendering.
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* It merges the columns and the sortable columns.
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*/
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protected function prepare_column_headers() {
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$this->_column_headers = array(
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$this->get_columns(),
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array(),
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$this->get_sortable_columns(),
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);
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}
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/**
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* Reads $this->sort_by and returns the columns name in a format that WP_Table_List
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* expects
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*/
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public function get_sortable_columns() {
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$sort_by = array();
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foreach ( $this->sort_by as $column ) {
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$sort_by[ $column ] = array( $column, true );
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}
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return $sort_by;
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}
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/**
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* Returns the columns names for rendering. It adds a checkbox for selecting everything
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* as the first column
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*/
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public function get_columns() {
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$columns = array_merge(
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array( 'cb' => '<input type="checkbox" />' ),
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$this->columns
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);
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return $columns;
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}
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/**
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* Get prepared LIMIT clause for items query
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*
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* @global wpdb $wpdb
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*
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* @return string Prepared LIMIT clause for items query.
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*/
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protected function get_items_query_limit() {
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global $wpdb;
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$per_page = $this->get_items_per_page( $this->package . '_items_per_page', $this->items_per_page );
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return $wpdb->prepare( 'LIMIT %d', $per_page );
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}
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/**
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* Returns the number of items to offset/skip for this current view.
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*
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* @return int
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*/
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protected function get_items_offset() {
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$per_page = $this->get_items_per_page( $this->package . '_items_per_page', $this->items_per_page );
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$current_page = $this->get_pagenum();
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if ( 1 < $current_page ) {
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$offset = $per_page * ( $current_page - 1 );
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} else {
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$offset = 0;
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}
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return $offset;
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}
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/**
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* Get prepared OFFSET clause for items query
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*
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* @global wpdb $wpdb
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*
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* @return string Prepared OFFSET clause for items query.
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*/
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protected function get_items_query_offset() {
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global $wpdb;
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return $wpdb->prepare( 'OFFSET %d', $this->get_items_offset() );
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}
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/**
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* Prepares the ORDER BY sql statement. It uses `$this->sort_by` to know which
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* columns are sortable. This requests validates the orderby $_GET parameter is a valid
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* column and sortable. It will also use order (ASC|DESC) using DESC by default.
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*/
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protected function get_items_query_order() {
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if ( empty( $this->sort_by ) ) {
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return '';
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}
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$orderby = esc_sql( $this->get_request_orderby() );
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$order = esc_sql( $this->get_request_order() );
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return "ORDER BY {$orderby} {$order}";
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}
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/**
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* Return the sortable column specified for this request to order the results by, if any.
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*
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* @return string
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*/
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protected function get_request_orderby() {
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$valid_sortable_columns = array_values( $this->sort_by );
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if ( ! empty( $_GET['orderby'] ) && in_array( $_GET['orderby'], $valid_sortable_columns ) ) {
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$orderby = sanitize_text_field( $_GET['orderby'] );
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} else {
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$orderby = $valid_sortable_columns[0];
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}
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return $orderby;
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}
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/**
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* Return the sortable column order specified for this request.
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*
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* @return string
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*/
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protected function get_request_order() {
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if ( ! empty( $_GET['order'] ) && 'desc' === strtolower( $_GET['order'] ) ) {
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$order = 'DESC';
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} else {
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$order = 'ASC';
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}
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return $order;
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}
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/**
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* Return the status filter for this request, if any.
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*
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* @return string
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*/
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protected function get_request_status() {
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$status = ( ! empty( $_GET['status'] ) ) ? $_GET['status'] : '';
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return $status;
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}
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/**
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* Return the search filter for this request, if any.
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*
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* @return string
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*/
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protected function get_request_search_query() {
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$search_query = ( ! empty( $_GET['s'] ) ) ? $_GET['s'] : '';
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return $search_query;
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}
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/**
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* Process and return the columns name. This is meant for using with SQL, this means it
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* always includes the primary key.
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*
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* @return array
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*/
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protected function get_table_columns() {
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$columns = array_keys( $this->columns );
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if ( ! in_array( $this->ID, $columns ) ) {
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$columns[] = $this->ID;
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}
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return $columns;
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}
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/**
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* Check if the current request is doing a "full text" search. If that is the case
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* prepares the SQL to search texts using LIKE.
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*
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* If the current request does not have any search or if this list table does not support
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* that feature it will return an empty string.
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*
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* TODO:
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* - Improve search doing LIKE by word rather than by phrases.
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*
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* @return string
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*/
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protected function get_items_query_search() {
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global $wpdb;
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if ( empty( $_GET['s'] ) || empty( $this->search_by ) ) {
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return '';
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}
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$filter = array();
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foreach ( $this->search_by as $column ) {
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$filter[] = $wpdb->prepare('`' . $column . '` like "%%s%"', $wpdb->esc_like( $_GET['s'] ));
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}
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return implode( ' OR ', $filter );
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}
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/**
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* Prepares the SQL to filter rows by the options defined at `$this->filter_by`. Before trusting
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* any data sent by the user it validates that it is a valid option.
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*/
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protected function get_items_query_filters() {
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global $wpdb;
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if ( ! $this->filter_by || empty( $_GET['filter_by'] ) || ! is_array( $_GET['filter_by'] ) ) {
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return '';
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}
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$filter = array();
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foreach ( $this->filter_by as $column => $options ) {
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if ( empty( $_GET['filter_by'][ $column ] ) || empty( $options[ $_GET['filter_by'][ $column ] ] ) ) {
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continue;
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}
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$filter[] = $wpdb->prepare( "`$column` = %s", $_GET['filter_by'][ $column ] );
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}
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return implode( ' AND ', $filter );
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}
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/**
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* Prepares the data to feed WP_Table_List.
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*
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* This has the core for selecting, sorting and filting data. To keep the code simple
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* its logic is split among many methods (get_items_query_*).
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*
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* Beside populating the items this function will also count all the records that matches
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* the filtering criteria and will do fill the pagination variables.
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*/
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public function prepare_items() {
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global $wpdb;
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$this->process_bulk_action();
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$this->process_row_actions();
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if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) {
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// _wp_http_referer is used only on bulk actions, we remove it to keep the $_GET shorter
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wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), wp_unslash( $_SERVER['REQUEST_URI'] ) ) );
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exit;
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}
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$this->prepare_column_headers();
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$limit = $this->get_items_query_limit();
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$offset = $this->get_items_query_offset();
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$order = $this->get_items_query_order();
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$where = array_filter(array(
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$this->get_items_query_search(),
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$this->get_items_query_filters(),
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));
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$columns = '`' . implode( '`, `', $this->get_table_columns() ) . '`';
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if ( ! empty( $where ) ) {
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$where = 'WHERE ('. implode( ') AND (', $where ) . ')';
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} else {
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$where = '';
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}
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$sql = "SELECT $columns FROM {$this->table_name} {$where} {$order} {$limit} {$offset}";
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$this->set_items( $wpdb->get_results( $sql, ARRAY_A ) );
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$query_count = "SELECT COUNT({$this->ID}) FROM {$this->table_name} {$where}";
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$total_items = $wpdb->get_var( $query_count );
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$per_page = $this->get_items_per_page( $this->package . '_items_per_page', $this->items_per_page );
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$this->set_pagination_args( array(
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'total_items' => $total_items,
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'per_page' => $per_page,
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'total_pages' => ceil( $total_items / $per_page ),
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) );
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}
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public function extra_tablenav( $which ) {
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if ( ! $this->filter_by || 'top' !== $which ) {
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return;
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}
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echo '<div class="alignleft actions">';
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foreach ( $this->filter_by as $id => $options ) {
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$default = ! empty( $_GET['filter_by'][ $id ] ) ? $_GET['filter_by'][ $id ] : '';
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if ( empty( $options[ $default ] ) ) {
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$default = '';
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}
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echo '<select name="filter_by[' . esc_attr( $id ) . ']" class="first" id="filter-by-' . esc_attr( $id ) . '">';
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foreach ( $options as $value => $label ) {
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echo '<option value="' . esc_attr( $value ) . '" ' . esc_html( $value == $default ? 'selected' : '' ) .'>'
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. esc_html( $label )
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. '</option>';
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}
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echo '</select>';
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}
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submit_button( esc_html__( 'Filter', 'action-scheduler' ), '', 'filter_action', false, array( 'id' => 'post-query-submit' ) );
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echo '</div>';
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}
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/**
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* Set the data for displaying. It will attempt to unserialize (There is a chance that some columns
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* are serialized). This can be override in child classes for futher data transformation.
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*/
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protected function set_items( array $items ) {
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$this->items = array();
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foreach ( $items as $item ) {
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$this->items[ $item[ $this->ID ] ] = array_map( 'maybe_unserialize', $item );
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}
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}
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/**
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* Renders the checkbox for each row, this is the first column and it is named ID regardless
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* of how the primary key is named (to keep the code simpler). The bulk actions will do the proper
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* name transformation though using `$this->ID`.
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*/
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public function column_cb( $row ) {
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return '<input name="ID[]" type="checkbox" value="' . esc_attr( $row[ $this->ID ] ) .'" />';
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}
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/**
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* Renders the row-actions.
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*
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* This method renders the action menu, it reads the definition from the $row_actions property,
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* and it checks that the row action method exists before rendering it.
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*
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* @param array $row Row to render
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* @param $column_name Current row
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* @return
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*/
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protected function maybe_render_actions( $row, $column_name ) {
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if ( empty( $this->row_actions[ $column_name ] ) ) {
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return;
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}
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$row_id = $row[ $this->ID ];
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$actions = '<div class="row-actions">';
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$action_count = 0;
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foreach ( $this->row_actions[ $column_name ] as $action_key => $action ) {
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$action_count++;
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if ( ! method_exists( $this, 'row_action_' . $action_key ) ) {
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continue;
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}
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$action_link = ! empty( $action['link'] ) ? $action['link'] : add_query_arg( array( 'row_action' => $action_key, 'row_id' => $row_id, 'nonce' => wp_create_nonce( $action_key . '::' . $row_id ) ) );
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$span_class = ! empty( $action['class'] ) ? $action['class'] : $action_key;
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$separator = ( $action_count < count( $this->row_actions[ $column_name ] ) ) ? ' | ' : '';
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$actions .= sprintf( '<span class="%s">', esc_attr( $span_class ) );
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$actions .= sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', esc_url( $action_link ), esc_attr( $action['desc'] ), esc_html( $action['name'] ) );
|
|
$actions .= sprintf( '%s</span>', $separator );
|
|
}
|
|
$actions .= '</div>';
|
|
return $actions;
|
|
}
|
|
|
|
protected function process_row_actions() {
|
|
$parameters = array( 'row_action', 'row_id', 'nonce' );
|
|
foreach ( $parameters as $parameter ) {
|
|
if ( empty( $_REQUEST[ $parameter ] ) ) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
$method = 'row_action_' . $_REQUEST['row_action'];
|
|
|
|
if ( $_REQUEST['nonce'] === wp_create_nonce( $_REQUEST[ 'row_action' ] . '::' . $_REQUEST[ 'row_id' ] ) && method_exists( $this, $method ) ) {
|
|
$this->$method( $_REQUEST['row_id'] );
|
|
}
|
|
|
|
wp_redirect( remove_query_arg(
|
|
array( 'row_id', 'row_action', 'nonce' ),
|
|
wp_unslash( $_SERVER['REQUEST_URI'] )
|
|
) );
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* Default column formatting, it will escape everythig for security.
|
|
*/
|
|
public function column_default( $item, $column_name ) {
|
|
$column_html = esc_html( $item[ $column_name ] );
|
|
$column_html .= $this->maybe_render_actions( $item, $column_name );
|
|
return $column_html;
|
|
}
|
|
|
|
/**
|
|
* Display the table heading and search query, if any
|
|
*/
|
|
protected function display_header() {
|
|
echo '<h1 class="wp-heading-inline">' . esc_attr( $this->table_header ) . '</h1>';
|
|
if ( $this->get_request_search_query() ) {
|
|
/* translators: %s: search query */
|
|
echo '<span class="subtitle">' . esc_attr( sprintf( __( 'Search results for "%s"', 'action-scheduler' ), $this->get_request_search_query() ) ) . '</span>';
|
|
}
|
|
echo '<hr class="wp-header-end">';
|
|
}
|
|
|
|
/**
|
|
* Display the table heading and search query, if any
|
|
*/
|
|
protected function display_admin_notices() {
|
|
foreach ( $this->admin_notices as $notice ) {
|
|
echo '<div id="message" class="' . $notice['class'] . '">';
|
|
echo ' <p>' . wp_kses_post( $notice['message'] ) . '</p>';
|
|
echo '</div>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Prints the available statuses so the user can click to filter.
|
|
*/
|
|
protected function display_filter_by_status() {
|
|
|
|
$status_list_items = array();
|
|
$request_status = $this->get_request_status();
|
|
|
|
// Helper to set 'all' filter when not set on status counts passed in
|
|
if ( ! isset( $this->status_counts['all'] ) ) {
|
|
$this->status_counts = array( 'all' => array_sum( $this->status_counts ) ) + $this->status_counts;
|
|
}
|
|
|
|
foreach ( $this->status_counts as $status_name => $count ) {
|
|
|
|
if ( 0 === $count ) {
|
|
continue;
|
|
}
|
|
|
|
if ( $status_name === $request_status || ( empty( $request_status ) && 'all' === $status_name ) ) {
|
|
$status_list_item = '<li class="%1$s"><strong>%3$s</strong> (%4$d)</li>';
|
|
} else {
|
|
$status_list_item = '<li class="%1$s"><a href="%2$s">%3$s</a> (%4$d)</li>';
|
|
}
|
|
|
|
$status_filter_url = ( 'all' === $status_name ) ? remove_query_arg( 'status' ) : add_query_arg( 'status', $status_name );
|
|
$status_filter_url = remove_query_arg( array( 'paged', 's' ), $status_filter_url );
|
|
$status_list_items[] = sprintf( $status_list_item, esc_attr( $status_name ), esc_url( $status_filter_url ), esc_html( ucfirst( $status_name ) ), absint( $count ) );
|
|
}
|
|
|
|
if ( $status_list_items ) {
|
|
echo '<ul class="subsubsub">';
|
|
echo implode( " | \n", $status_list_items );
|
|
echo '</ul>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Renders the table list, we override the original class to render the table inside a form
|
|
* and to render any needed HTML (like the search box). By doing so the callee of a function can simple
|
|
* forget about any extra HTML.
|
|
*/
|
|
protected function display_table() {
|
|
echo '<form id="' . esc_attr( $this->_args['plural'] ) . '-filter" method="get">';
|
|
foreach ( $_GET as $key => $value ) {
|
|
if ( '_' === $key[0] || 'paged' === $key || 'ID' === $key ) {
|
|
continue;
|
|
}
|
|
echo '<input type="hidden" name="' . esc_attr( $key ) . '" value="' . esc_attr( $value ) . '" />';
|
|
}
|
|
if ( ! empty( $this->search_by ) ) {
|
|
echo $this->search_box( $this->get_search_box_button_text(), 'plugin' ); // WPCS: XSS OK
|
|
}
|
|
parent::display();
|
|
echo '</form>';
|
|
}
|
|
|
|
/**
|
|
* Process any pending actions.
|
|
*/
|
|
public function process_actions() {
|
|
$this->process_bulk_action();
|
|
$this->process_row_actions();
|
|
|
|
if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) {
|
|
// _wp_http_referer is used only on bulk actions, we remove it to keep the $_GET shorter
|
|
wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), wp_unslash( $_SERVER['REQUEST_URI'] ) ) );
|
|
exit;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Render the list table page, including header, notices, status filters and table.
|
|
*/
|
|
public function display_page() {
|
|
$this->prepare_items();
|
|
|
|
echo '<div class="wrap">';
|
|
$this->display_header();
|
|
$this->display_admin_notices();
|
|
$this->display_filter_by_status();
|
|
$this->display_table();
|
|
echo '</div>';
|
|
}
|
|
|
|
/**
|
|
* Get the text to display in the search box on the list table.
|
|
*/
|
|
protected function get_search_box_placeholder() {
|
|
return esc_html__( 'Search', 'action-scheduler' );
|
|
}
|
|
}
|