WP_Posts_List_Table::__construct() WordPress Method

The WP_Posts_List_Table::__construct() method is used to setup the display of the posts list table. It takes care of the display of the table headers, footers, and other data.

WP_Posts_List_Table::__construct( array $args = array() ) #

Constructor.

Contents

Description

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See also

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Parameters

$args

(array)(Optional)An associative array of arguments.

Default value: array()

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Source

File: wp-admin/includes/class-wp-posts-list-table.php

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public function __construct( $args = array() ) {
    global $post_type_object, $wpdb;
 
    parent::__construct(
        array(
            'plural' => 'posts',
            'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
        )
    );
 
    $post_type        = $this->screen->post_type;
    $post_type_object = get_post_type_object( $post_type );
 
    $exclude_states = get_post_stati(
        array(
            'show_in_admin_all_list' => false,
        )
    );
 
    $this->user_posts_count = (int) $wpdb->get_var(
        $wpdb->prepare(
            "SELECT COUNT( 1 )
            FROM $wpdb->posts
            WHERE post_type = %s
            AND post_status NOT IN ( '" . implode( "','", $exclude_states ) . "' )
            AND post_author = %d",
            $post_type,
            get_current_user_id()
        )
    );
 
    if ( $this->user_posts_count
        && ! current_user_can( $post_type_object->cap->edit_others_posts )
        && empty( $_REQUEST['post_status'] ) && empty( $_REQUEST['all_posts'] )
        && empty( $_REQUEST['author'] ) && empty( $_REQUEST['show_sticky'] )
    ) {
        $_GET['author'] = get_current_user_id();
    }
 
    $sticky_posts = get_option( 'sticky_posts' );
 
    if ( 'post' === $post_type && $sticky_posts ) {
        $sticky_posts = implode( ', ', array_map( 'absint', (array) $sticky_posts ) );
 
        $this->sticky_posts_count = (int) $wpdb->get_var(
            $wpdb->prepare(
                "SELECT COUNT( 1 )
                FROM $wpdb->posts
                WHERE post_type = %s
                AND post_status NOT IN ('trash', 'auto-draft')
                AND ID IN ($sticky_posts)",
                $post_type
            )
        );
    }
}

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Uses

Uses
UsesDescription
wp-admin/includes/class-wp-list-table.php:WP_List_Table::__construct()

Constructor.

wp-includes/capabilities.php:current_user_can()

Returns whether the current user has the specified capability.

wp-includes/option.php:get_option()

Retrieves an option value based on an option name.

wp-includes/user.php:get_current_user_id()

Gets the current user’s ID.

wp-includes/post.php:get_post_type_object()

Retrieves a post type object by name.

wp-includes/post.php:get_post_stati()

Get a list of post statuses.

wp-includes/wp-db.php:wpdb::get_var()

Retrieves one variable from the database.

wp-includes/wp-db.php:wpdb::prepare()

Prepares a SQL query for safe execution.

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Changelog

Changelog
VersionDescription
3.1.0Introduced.
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