WordPressを読む 11-2 /blog/wp-includes/option.php 2
2014/11/29
目次
/blog/wp-includes/option.php 2
読込元 : /blog/wp-includes/functions.php 1
関数
wp_load_core_site_options()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | /** * Loads and caches certain often requested site options if is_multisite() and a persistent cache is not being used. * * @since 3.0.0 * * @param int $site_id Optional site ID for which to query the options. Defaults to the current site. */ function wp_load_core_site_options( $site_id = null ) { global $wpdb; if ( !is_multisite() || wp_using_ext_object_cache() || defined( 'WP_INSTALLING' ) ) return; if ( empty($site_id) ) $site_id = $wpdb->siteid; $core_options = array('site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled', 'ms_files_rewriting' ); $core_options_in = "'" . implode("', '", $core_options) . "'"; $options = $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $site_id) ); foreach ( $options as $option ) { $key = $option->meta_key; $cache_key = "{$site_id}:$key"; $option->meta_value = maybe_unserialize( $option->meta_value ); wp_cache_set( $cache_key, $option->meta_value, 'site-options' ); } } |
関数
update_option()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 | /** * Update the value of an option that was already added. * * You do not need to serialize values. If the value needs to be serialized, then * it will be serialized before it is inserted into the database. Remember, * resources can not be serialized or added as an option. * * If the option does not exist, then the option will be added with the option * value, but you will not be able to set whether it is autoloaded. If you want * to set whether an option is autoloaded, then you need to use the add_option(). * * @since 1.0.0 * * @param string $option Option name. Expected to not be SQL-escaped. * @param mixed $value Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped. * @return bool False if value was not updated and true if value was updated. */ function update_option( $option, $value ) { global $wpdb; $option = trim($option); if ( empty($option) ) return false; wp_protect_special_option( $option ); if ( is_object( $value ) ) $value = clone $value; $value = sanitize_option( $option, $value ); $old_value = get_option( $option ); /** * Filter a specific option before its value is (maybe) serialized and updated. * * The dynamic portion of the hook name, $option, refers to the option name. * * @since 2.6.0 * * @param mixed $value The new, unserialized option value. * @param mixed $old_value The old option value. */ $value = apply_filters( 'pre_update_option_' . $option, $value, $old_value ); /** * Filter an option before its value is (maybe) serialized and updated. * * @since 3.9.0 * * @param mixed $value The new, unserialized option value. * @param string $option Name of the option. * @param mixed $old_value The old option value. */ $value = apply_filters( 'pre_update_option', $value, $option, $old_value ); // If the new and old values are the same, no need to update. if ( $value === $old_value ) return false; if ( false === $old_value ) return add_option( $option, $value ); $serialized_value = maybe_serialize( $value ); /** * Fires immediately before an option value is updated. * * @since 2.9.0 * * @param string $option Name of the option to update. * @param mixed $old_value The old option value. * @param mixed $value The new option value. */ do_action( 'update_option', $option, $old_value, $value ); $result = $wpdb->update( $wpdb->options, array( 'option_value' => $serialized_value ), array( 'option_name' => $option ) ); if ( ! $result ) return false; $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { unset( $notoptions[$option] ); wp_cache_set( 'notoptions', $notoptions, 'options' ); } if ( ! defined( 'WP_INSTALLING' ) ) { $alloptions = wp_load_alloptions(); if ( isset( $alloptions[$option] ) ) { $alloptions[ $option ] = $serialized_value; wp_cache_set( 'alloptions', $alloptions, 'options' ); } else { wp_cache_set( $option, $serialized_value, 'options' ); } } /** * Fires after the value of a specific option has been successfully updated. * * The dynamic portion of the hook name, $option, refers to the option name. * * @since 2.0.1 * * @param mixed $old_value The old option value. * @param mixed $value The new option value. */ do_action( "update_option_{$option}", $old_value, $value ); /** * Fires after the value of an option has been successfully updated. * * @since 2.9.0 * * @param string $option Name of the updated option. * @param mixed $old_value The old option value. * @param mixed $value The new option value. */ do_action( 'updated_option', $option, $old_value, $value ); return true; } |
関数
add_option()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | /** * Add a new option. * * You do not need to serialize values. If the value needs to be serialized, then * it will be serialized before it is inserted into the database. Remember, * resources can not be serialized or added as an option. * * You can create options without values and then update the values later. * Existing options will not be updated and checks are performed to ensure that you * aren't adding a protected WordPress option. Care should be taken to not name * options the same as the ones which are protected. * * @since 1.0.0 * * @param string $option Name of option to add. Expected to not be SQL-escaped. * @param mixed $value Optional. Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped. * @param mixed $deprecated Optional. Description. Not used anymore. * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up. * @return bool False if option was not added and true if option was added. */ function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) { global $wpdb; if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '2.3' ); $option = trim($option); if ( empty($option) ) return false; wp_protect_special_option( $option ); if ( is_object($value) ) $value = clone $value; $value = sanitize_option( $option, $value ); // Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query $notoptions = wp_cache_get( 'notoptions', 'options' ); if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) ) if ( false !== get_option( $option ) ) return false; $serialized_value = maybe_serialize( $value ); $autoload = ( 'no' === $autoload ) ? 'no' : 'yes'; /** * Fires before an option is added. * * @since 2.9.0 * * @param string $option Name of the option to add. * @param mixed $value Value of the option. */ do_action( 'add_option', $option, $value ); $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $serialized_value, $autoload ) ); if ( ! $result ) return false; if ( ! defined( 'WP_INSTALLING' ) ) { if ( 'yes' == $autoload ) { $alloptions = wp_load_alloptions(); $alloptions[ $option ] = $serialized_value; wp_cache_set( 'alloptions', $alloptions, 'options' ); } else { wp_cache_set( $option, $serialized_value, 'options' ); } } // This option exists now $notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { unset( $notoptions[$option] ); wp_cache_set( 'notoptions', $notoptions, 'options' ); } /** * Fires after a specific option has been added. * * The dynamic portion of the hook name, $option, refers to the option name. * * @since 2.5.0 As "add_option_{$name}" * @since 3.0.0 * * @param string $option Name of the option to add. * @param mixed $value Value of the option. */ do_action( "add_option_{$option}", $option, $value ); /** * Fires after an option has been added. * * @since 2.9.0 * * @param string $option Name of the added option. * @param mixed $value Value of the option. */ do_action( 'added_option', $option, $value ); return true; } |