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<title>[12128] trunk: Introduce get/set/delete_site_transient().</title>
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<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/12128">12128</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2009-10-29 21:53:57 +0000 (Thu, 29 Oct 2009)</dd>
</dl>
<h3>Log Message</h3>
<pre>Introduce get/set/delete_site_transient(). Make theme_roots a site transient.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpincludesfunctionsphp">trunk/wp-includes/functions.php</a></li>
<li><a href="#trunkwpincludesthemephp">trunk/wp-includes/theme.php</a></li>
<li><a href="#trunkwpsettingsphp">trunk/wp-settings.php</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="trunkwpincludesfunctionsphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/functions.php (12127 => 12128)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/functions.php 2009-10-29 18:02:55 UTC (rev 12127)
+++ trunk/wp-includes/functions.php 2009-10-29 21:53:57 UTC (rev 12128)
</span><span class="lines">@@ -3190,6 +3190,12 @@
</span><span class="cx"> return $result;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+function delete_site_option( $key ) {
+ $result = delete_option($key);
+ do_action( "delete_site_option_{$key}", $key );
+ return $result;
+}
+
</ins><span class="cx"> // expects $key, $value not to be SQL escaped
</span><span class="cx"> function update_site_option( $key, $value ) {
</span><span class="cx"> $oldvalue = get_site_option( $key );
</span><span class="lines">@@ -3200,6 +3206,100 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> /**
</span><ins>+ * Delete a site transient
+ *
+ * @since 2.890
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped
+ * @return bool true if successful, false otherwise
+ */
+function delete_site_transient($transient) {
+ global $_wp_using_ext_object_cache, $wpdb;
+
+ if ( $_wp_using_ext_object_cache ) {
+ return wp_cache_delete($transient, 'site-transient');
+ } else {
+ $transient = '_site_transient_' . esc_sql($transient);
+ return delete_site_option($transient);
+ }
+}
+
+/**
+ * Get the value of a site transient
+ *
+ * If the transient does not exist or does not have a value, then the return value
+ * will be false.
+ *
+ * @since 2.9.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped
+ * @return mixed Value of transient
+ */
+function get_site_transient($transient) {
+ global $_wp_using_ext_object_cache, $wpdb;
+
+ $pre = apply_filters( 'pre_site_transient_' . $transient, false );
+ if ( false !== $pre )
+ return $pre;
+
+ if ( $_wp_using_ext_object_cache ) {
+ $value = wp_cache_get($transient, 'site-transient');
+ } else {
+ $transient_option = '_site_transient_' . esc_sql($transient);
+ $transient_timeout = '_site_transient_timeout_' . esc_sql($transient);
+ if ( get_site_option($transient_timeout) < time() ) {
+ delete_site_option($transient_option);
+ delete_site_option($transient_timeout);
+ return false;
+ }
+
+ $value = get_site_option($transient_option);
+ }
+
+ return apply_filters('site_transient_' . $transient, $value);
+}
+
+/**
+ * Set/update the value of a site transient
+ *
+ * You do not need to serialize values, if the value needs to be serialize, then
+ * it will be serialized before it is set.
+ *
+ * @since 2.9.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped
+ * @param mixed $value Transient value.
+ * @param int $expiration Time until expiration in seconds, default 0
+ * @return bool False if value was not set and true if value was set.
+ */
+function set_site_transient($transient, $value, $expiration = 0) {
+ global $_wp_using_ext_object_cache, $wpdb;
+
+ if ( $_wp_using_ext_object_cache ) {
+ return wp_cache_set($transient, $value, 'site-transient', $expiration);
+ } else {
+ $transient_timeout = '_site_transient_timeout_' . $transient;
+ $transient = '_site_transient_' . $transient;
+ $safe_transient = esc_sql($transient);
+ if ( false === get_site_option( $safe_transient ) ) {
+ if ( 0 != $expiration )
+ add_site_option($transient_timeout, time() + $expiration);
+ return add_site_option($transient, $value);
+ } else {
+ if ( 0 != $expiration )
+ update_site_option($transient_timeout, time() + $expiration);
+ return update_site_option($transient, $value);
+ }
+ }
+}
+
+/**
</ins><span class="cx"> * gmt_offset modification for smart timezone handling
</span><span class="cx"> *
</span><span class="cx"> * Overrides the gmt_offset option if we have a timezone_string available
</span></span></pre></div>
<a id="trunkwpincludesthemephp"></a>
<div class="modfile"><h4>Modified: trunk/wp-includes/theme.php (12127 => 12128)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-includes/theme.php 2009-10-29 18:02:55 UTC (rev 12127)
+++ trunk/wp-includes/theme.php 2009-10-29 21:53:57 UTC (rev 12128)
</span><span class="lines">@@ -398,8 +398,8 @@
</span><span class="cx"> $theme_names = array_keys( $themes );
</span><span class="cx">
</span><span class="cx"> /* Store theme roots in the DB */
</span><del>- if ( get_transient( 'theme_roots' ) != $theme_roots )
- set_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours
</del><ins>+ if ( get_site_transient( 'theme_roots' ) != $theme_roots )
+ set_site_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours
</ins><span class="cx">
</span><span class="cx"> foreach ( (array) $theme_names as $theme_name ) {
</span><span class="cx"> $themes[$theme_name]['Parent Theme'] = '';
</span><span class="lines">@@ -426,10 +426,10 @@
</span><span class="cx"> * @return array Theme roots
</span><span class="cx"> */
</span><span class="cx"> function get_theme_roots() {
</span><del>- $theme_roots = get_transient( 'theme_roots' );
</del><ins>+ $theme_roots = get_site_transient( 'theme_roots' );
</ins><span class="cx"> if ( false === $theme_roots ) {
</span><span class="cx"> get_themes();
</span><del>- $theme_roots = get_transient( 'theme_roots' ); // this is set in get_theme()
</del><ins>+ $theme_roots = get_site_transient( 'theme_roots' ); // this is set in get_theme()
</ins><span class="cx"> }
</span><span class="cx"> return $theme_roots;
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkwpsettingsphp"></a>
<div class="modfile"><h4>Modified: trunk/wp-settings.php (12127 => 12128)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-settings.php 2009-10-29 18:02:55 UTC (rev 12127)
+++ trunk/wp-settings.php 2009-10-29 21:53:57 UTC (rev 12128)
</span><span class="lines">@@ -304,7 +304,7 @@
</span><span class="cx">
</span><span class="cx"> wp_cache_init();
</span><span class="cx"> if ( function_exists('wp_cache_add_global_groups') ) {
</span><del>- wp_cache_add_global_groups(array ('users', 'userlogins', 'usermeta'));
</del><ins>+ wp_cache_add_global_groups(array ('users', 'userlogins', 'usermeta', 'site-transient'));
</ins><span class="cx"> wp_cache_add_non_persistent_groups(array( 'comment', 'counts', 'plugins' ));
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre>
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