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<?php |
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namespace Barn2\Plugin\Posts_Table_Search_Sort; |
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|
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/** |
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* This class is responsible for generating a HTML table from a list of supplied attributes. |
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* |
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* @package Barn2\posts-table-search-sort |
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* @author Barn2 Plugins <support@barn2.co.uk> |
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* @license GPL-3.0 |
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* @copyright Barn2 Media Ltd |
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*/ |
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class Simple_Posts_Table { |
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|
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/** |
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* Stores the number of tables on this page. Used to generate the table ID. |
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* |
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* @var int |
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*/ |
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private static $table_count = 1; |
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|
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/** |
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* The complete list of table attributes, and their defaults. |
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* |
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* @var array |
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*/ |
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public static $default_args = array( |
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'columns' => 'title,content,date,author,categories', |
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'rows_per_page' => 20, |
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'sort_by' => 'date', |
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'sort_order' => '', |
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'category' => '', |
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'tag' => '', |
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'author' => '', |
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'post_status' => '', |
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'date_format' => 'Y/m/d', |
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'search_on_click' => true, |
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'wrap' => true, |
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'content_length' => 15, |
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'scroll_offset' => 15 |
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); |
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|
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/** |
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* An array of all possible columns and their default heading, priority, and column width. |
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* |
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* @var array |
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*/ |
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private static $column_defaults = array(); |
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|
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/** |
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* An array of all allowed column keys. |
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* |
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* @var array |
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*/ |
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private static $allowed_columns = array(); |
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|
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public static function get_defaults() { |
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return wp_parse_args( Settings::get_table_args(), self::$default_args ); |
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} |
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|
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public static function get_column_defaults() { |
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if ( empty( self::$column_defaults ) ) { |
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/** |
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* Priority values are used to determine visiblity at small screen sizes (1 = highest priority, 6 = lowest priority). |
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* Column widths are automatically calculated by DataTables, but can be overridden by using filter 'posts_data_table_column_defaults'. |
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*/ |
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self::$column_defaults = array( |
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'id' => array( |
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'heading' => __( 'ID', 'posts-data-table' ), |
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'priority' => 3, |
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'width' => '' |
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), |
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'image' => array( |
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'heading' => __( 'Image', 'posts-data-table' ), |
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'priority' => 6, |
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'width' => '' |
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), |
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'title' => array( |
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'heading' => __( 'Title', 'posts-data-table' ), |
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'priority' => 1, |
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'width' => '' |
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), |
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'categories' => array( |
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'heading' => __( 'Categories', 'posts-data-table' ), |
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'priority' => 7, |
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'width' => '' |
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), |
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'tags' => array( |
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'heading' => __( 'Tags', 'posts-data-table' ), |
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'priority' => 8, |
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'width' => '' |
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), |
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'date' => array( |
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'heading' => __( 'Date', 'posts-data-table' ), |
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'priority' => 2, |
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'width' => '' |
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), |
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'author' => array( |
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'heading' => __( 'Author', 'posts-data-table' ), |
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'priority' => 4, |
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'width' => '' |
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), |
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'content' => array( |
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'heading' => __( 'Content', 'posts-data-table' ), |
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'priority' => 5, |
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'width' => '' |
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) |
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); |
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} |
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|
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return self::$column_defaults; |
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} |
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|
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public static function get_allowed_columns() { |
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if ( empty( self::$allowed_columns ) ) { |
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self::$allowed_columns = array_keys( self::get_column_defaults() ); |
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} |
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return self::$allowed_columns; |
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} |
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|
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/** |
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* Retrieves a data table containing a list of posts based on the specified arguments. |
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* |
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* @param array $args An array of options used to display the posts table |
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* @return string The posts table HTML output |
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*/ |
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public function get_table( $args ) { |
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// Load the scripts and styles. |
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if ( apply_filters( 'posts_data_table_load_scripts', true ) ) { |
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wp_enqueue_style( 'posts-data-table' ); |
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wp_enqueue_script( 'posts-data-table' ); |
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} |
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|
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$args = wp_parse_args( $args, self::get_defaults() ); |
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$args = $this->back_compat_args( $args ); |
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|
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if ( empty( $args['columns'] ) ) { |
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$args['columns'] = self::$default_args['columns']; |
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} |
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|
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// Get the columns to be used in this table |
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$columns = array_filter( array_map( 'trim', explode( ',', strtolower( $args['columns'] ) ) ) ); |
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$columns = array_intersect( $columns, self::get_allowed_columns() ); |
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|
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if ( empty( $columns ) ) { |
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$columns = explode( ',', self::$default_args['columns'] ); |
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} |
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|
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$args['rows_per_page'] = filter_var( $args['rows_per_page'], FILTER_VALIDATE_INT ); |
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|
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if ( $args['rows_per_page'] < 1 || ! $args['rows_per_page'] ) { |
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$args['rows_per_page'] = false; |
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} |
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|
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if ( ! in_array( $args['sort_by'], self::get_allowed_columns() ) ) { |
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$args['sort_by'] = self::$default_args['sort_by']; |
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} |
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|
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if ( ! in_array( $args['sort_order'], array( 'asc', 'desc' ) ) ) { |
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$args['sort_order'] = self::$default_args['sort_order']; |
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} |
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|
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// Set default sort direction |
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if ( ! $args['sort_order'] ) { |
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if ( $args['sort_by'] === 'date' ) { |
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$args['sort_order'] = 'desc'; |
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} else { |
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$args['sort_order'] = 'asc'; |
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} |
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} |
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|
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$args['search_on_click'] = filter_var( $args['search_on_click'], FILTER_VALIDATE_BOOLEAN ); |
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$args['wrap'] = filter_var( $args['wrap'], FILTER_VALIDATE_BOOLEAN ); |
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$args['content_length'] = filter_var( $args['content_length'], FILTER_VALIDATE_INT ); |
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$args['scroll_offset'] = filter_var( $args['scroll_offset'], FILTER_VALIDATE_INT ); |
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|
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if ( empty( $args['date_format'] ) ) { |
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$args['date_format'] = self::$default_args['date_format']; |
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} |
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|
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$output = $table_head = $table_body = $body_row_fmt = ''; |
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|
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// Start building the args needed for our posts query |
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$post_args = array( |
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'post_type' => 'post', |
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'posts_per_page' => apply_filters( 'posts_data_table_post_limit', 1000 ), |
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'post_status' => 'publish', |
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'suppress_filters' => false // Ensure WPML filters run on this query |
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); |
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|
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if ( ! empty( $args['category'] ) ) { |
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if ( is_numeric( $args['category'] ) ) { |
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$post_args['cat'] = $args['category']; |
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} else { |
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$category = get_category_by_slug( $args['category'] ); |
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|
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if ( $category ) { |
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$post_args['category_name'] = $category->slug; |
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} |
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} |
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} |
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|
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if ( ! empty( $args['tag'] ) ) { |
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if ( is_numeric( $args['tag'] ) ) { |
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$post_args['tag_id'] = $args['tag']; |
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} else { |
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$post_args['tag'] = $args['tag']; |
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} |
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} |
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|
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if ( ! empty( $args['author'] ) ) { |
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$author = $args['author']; |
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|
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if ( is_numeric( $author ) || false !== strpos( $author, ',' ) ) { |
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$post_args['author'] = $author; |
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} else { |
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$post_args['author_name'] = $author; |
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} |
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} |
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|
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if ( ! empty( $args['post_status'] ) ) { |
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$post_args['post_status'] = $args['post_status']; |
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} |
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|
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// Get all published posts in the current language |
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$all_posts = get_posts( apply_filters( 'posts_data_table_query_args', $post_args, $args ) ); |
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|
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// Bail early if no posts found |
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if ( ! $all_posts || ! is_array( $all_posts ) ) { |
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return $output; |
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} |
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|
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$hidden_columns = array(); |
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|
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// Set hidden columns and sort indexes |
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$table_sort_index = array_search( $args['sort_by'], $columns ); |
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$date_sort_index = false; |
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$hidden_date = in_array( 'date', $columns ) || 'date' === $args['sort_by']; |
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|
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if ( $hidden_date ) { |
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$hidden_columns[] = 'timestamp'; |
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$date_sort_index = count( $columns ); |
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|
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// If we're sorting by date, make sure we use this hidden column for the initial table sort |
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if ( 'date' === $args['sort_by'] && false === $table_sort_index ) { |
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$table_sort_index = $date_sort_index; |
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} |
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} |
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|
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if ( false === $table_sort_index ) { |
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// Sort column is not in list of displayed columns so we'll add it as a hidden column at end of table |
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$hidden_columns[] = $args['sort_by']; |
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|
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// Set the table sort index to the index of the hidden sort column |
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$table_sort_index = $date_sort_index ? $date_sort_index + 1 : \count( $columns ); |
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} |
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|
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// Allow theme/plugins to override defaults |
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$column_defaults = apply_filters( 'posts_data_table_column_defaults_' . self::$table_count, apply_filters( 'posts_data_table_column_defaults', self::get_column_defaults() ) ); |
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|
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// Build table header |
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$heading_fmt = '<th data-name="%1$s" data-priority="%2$u" data-width="%3$s"%5$s>%4$s</th>'; |
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$cell_fmt = '<td>{%s}</td>'; |
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|
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foreach ( $columns as $column ) { |
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// Double-check column name is valid |
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if ( ! in_array( $column, self::get_allowed_columns() ) ) { |
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continue; |
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} |
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|
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// Do we need to use custom data for ordering this column? |
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$order_data = ''; |
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|
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if ( 'date' === $column && false !== $date_sort_index ) { |
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$order_data = sprintf( ' data-order-data="%u"', $date_sort_index ); |
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} |
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|
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// Add heading to table |
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$table_head .= sprintf( $heading_fmt, $column, $column_defaults[$column]['priority'], $column_defaults[$column]['width'], $column_defaults[$column]['heading'], $order_data ); |
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|
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// Add placeholder to table body format string so that content for this column is included in table output |
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$body_row_fmt .= sprintf( $cell_fmt, $column ); |
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} |
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|
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foreach ( $hidden_columns as $column ) { |
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$table_head .= sprintf( '<th data-name="%s" data-visible="false"></th>', $column ); |
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|
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// Make sure data for the hidden column is included in table content |
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$body_row_fmt .= sprintf( $cell_fmt, $column ); |
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} |
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|
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$table_head = sprintf( '<thead><tr>%s</tr></thead>', $table_head ); |
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|
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// Build table body |
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$body_row_fmt = '<tr>' . $body_row_fmt . '</tr>'; |
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|
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// Loop through posts and add a row for each |
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foreach ( (array) $all_posts as $_post ) { |
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setup_postdata( $_post ); |
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|
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// Format title |
| 301 |
$title = sprintf( '<a href="%1$s">%2$s</a>', get_permalink( $_post ), get_the_title( $_post ) ); |
| 302 |
|
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// Format author |
| 304 |
$author = sprintf( |
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'<a href="%1$s" title="%2$s" rel="author">%3$s</a>', |
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esc_url( \get_author_posts_url( $_post->post_author ) ), |
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esc_attr( sprintf( __( 'Posts by %s', 'posts-data-table' ), get_the_author() ) ), |
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get_the_author() |
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); |
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|
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$post_data_trans = apply_filters( 'posts_data_table_row_data_format', array( |
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'{id}' => $_post->ID, |
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'{image}' => get_the_post_thumbnail( $_post, apply_filters( 'posts_data_table_image_size', 'thumbnail' ) ), |
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'{title}' => $title, |
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'{categories}' => \get_the_category_list( ', ', '', $_post->ID ), |
| 316 |
'{tags}' => \get_the_tag_list( '', ', ', '', $_post->ID ), |
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'{date}' => \get_the_date( $args['date_format'], $_post ), |
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'{author}' => $author, |
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'{content}' => $this->get_post_content( $args['content_length'] ), |
| 320 |
'{timestamp}' => $_post->post_date |
| 321 |
) ); |
| 322 |
|
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$table_body .= strtr( $body_row_fmt, $post_data_trans ); |
| 324 |
} // foreach post |
| 325 |
|
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wp_reset_postdata(); |
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|
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$table_body = sprintf( '<tbody>%s</tbody>', $table_body ); |
| 329 |
|
| 330 |
$paging_attr = 'false'; |
| 331 |
|
| 332 |
if ( $args['rows_per_page'] && $args['rows_per_page'] < count( $all_posts ) ) { |
| 333 |
$paging_attr = 'true'; |
| 334 |
} |
| 335 |
|
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$order_attr = ''; |
| 337 |
|
| 338 |
if ( false !== $table_sort_index ) { |
| 339 |
// Order attribute should be escaped here rather than in sprintf below as we don't want to escape the double-quotes around "asc" or "desc" |
| 340 |
$order_attr = sprintf( '[[%u, "%s"]]', esc_attr( $table_sort_index ), esc_attr( $args['sort_order'] ) ); |
| 341 |
} |
| 342 |
|
| 343 |
$offset_attr = ( $args['scroll_offset'] === false ) ? 'false' : $args['scroll_offset']; |
| 344 |
$table_class = 'posts-data-table'; |
| 345 |
|
| 346 |
if ( ! $args['wrap'] ) { |
| 347 |
$table_class .= ' nowrap'; |
| 348 |
} |
| 349 |
|
| 350 |
$table_attributes = sprintf( |
| 351 |
'id="posts-table-%1$u" class="%2$s" data-page-length="%3$u" data-paging="%4$s" data-order=\'%5$s\' data-click-filter="%6$s" data-scroll-offset="%7$s" cellspacing="0" width="100%%"', |
| 352 |
self::$table_count, |
| 353 |
esc_attr( $table_class ), |
| 354 |
esc_attr( $args['rows_per_page'] ), |
| 355 |
esc_attr( $paging_attr ), |
| 356 |
$order_attr, // escaped above |
| 357 |
esc_attr( $args['search_on_click'] ? 'true' : 'false' ), |
| 358 |
esc_attr( $offset_attr ) |
| 359 |
); |
| 360 |
|
| 361 |
$output = sprintf( '<table %1$s>%2$s%3$s</table>', $table_attributes, $table_head, $table_body ); |
| 362 |
|
| 363 |
// Increment the table count |
| 364 |
self::$table_count ++; |
| 365 |
|
| 366 |
return apply_filters( 'posts_data_table_html_output', $output, $args ); |
| 367 |
} |
| 368 |
|
| 369 |
private function back_compat_args( $args ) { |
| 370 |
if ( ! empty( $args['columns'] ) ) { |
| 371 |
$columns = array_map( 'trim', explode( ',', $args['columns'] ) ); |
| 372 |
|
| 373 |
if ( false !== ( $index = array_search( 'category', $columns, true ) ) ) { |
| 374 |
$columns[$index] = 'categories'; |
| 375 |
} |
| 376 |
|
| 377 |
$args['columns'] = implode( ',', $columns ); |
| 378 |
} |
| 379 |
|
| 380 |
if ( ! empty( $args['sort_by'] ) && 'category' === $args['sort_by'] ) { |
| 381 |
$args['sort_by'] = 'categories'; |
| 382 |
} |
| 383 |
|
| 384 |
return $args; |
| 385 |
} |
| 386 |
|
| 387 |
/** |
| 388 |
* Retrieve the post content, truncated to the number of words specified by $num_words. |
| 389 |
* |
| 390 |
* Must be called with the Loop or a secondary loop after a call to setup_postdata(). |
| 391 |
* |
| 392 |
* @param int $num_words The number of words to trim the content to |
| 393 |
* @return string The (truncated) post content |
| 394 |
*/ |
| 395 |
private function get_post_content( $num_words = 15 ) { |
| 396 |
$text = get_the_content( '' ); |
| 397 |
$text = strip_shortcodes( $text ); |
| 398 |
$text = apply_filters( 'the_content', $text ); |
| 399 |
|
| 400 |
if ( $num_words > 0 ) { |
| 401 |
$text = wp_trim_words( $text, $num_words, ' …' ); |
| 402 |
} |
| 403 |
return $text; |
| 404 |
} |
| 405 |
|
| 406 |
} |
| 407 |
|
