Question

add_meta( int $post_ID )

根据文章的ID，添加文章的meta。

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参数

$post_ID

(int)
(Required)

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返回值

(int|bool)

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源代码

File: wp-admin/includes/post.php

function add_meta( $post_ID ) {
	$post_ID = (int) $post_ID;

	$metakeyselect = isset($_POST['metakeyselect']) ? wp_unslash( trim( $_POST['metakeyselect'] ) ) : '';
	$metakeyinput = isset($_POST['metakeyinput']) ? wp_unslash( trim( $_POST['metakeyinput'] ) ) : '';
	$metavalue = isset($_POST['metavalue']) ? $_POST['metavalue'] : '';
	if ( is_string( $metavalue ) )
		$metavalue = trim( $metavalue );

	if ( ('0' === $metavalue || ! empty ( $metavalue ) ) && ( ( ( '#NONE#' != $metakeyselect ) && !empty ( $metakeyselect) ) || !empty ( $metakeyinput ) ) ) {
		/*
		 * We have a key/value pair. If both the select and the input
		 * for the key have data, the input takes precedence.
		 */
 		if ( '#NONE#' != $metakeyselect )
			$metakey = $metakeyselect;

		if ( $metakeyinput )
			$metakey = $metakeyinput; // default

		if ( is_protected_meta( $metakey, 'post' ) || ! current_user_can( 'add_post_meta', $post_ID, $metakey ) )
			return false;

		$metakey = wp_slash( $metakey );

		return add_post_meta( $post_ID, $metakey, $metavalue );
	}

	return false;
} // add_meta

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更新日志

Version	description
1.2.0	Introduced.

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相关函数

Uses

• wp-includes/capabilities.php:current_user_can()
• wp-includes/formatting.php:wp_unslash()
• wp-includes/formatting.php:wp_slash()
• wp-includes/post.php:add_post_meta()
• wp-includes/meta.php:is_protected_meta()

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Used By

• wp-admin/includes/post.php:wp_write_post()
• wp-admin/includes/post.php:edit_post()
• wp-admin/includes/ajax-actions.php:wp_ajax_add_meta()