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<title>[GlotPress][1078] trunk/gp-includes/misc.php: Introduce wp_list_pluck()</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://glotpress.trac.wordpress.org/changeset/1078">1078</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://glotpress.trac.wordpress.org/changeset/1078","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>markoheijnen</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-07-17 13:51:03 +0000 (Fri, 17 Jul 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Introduce wp_list_pluck()
Fixes <a href="http://glotpress.trac.wordpress.org/ticket/468">#468</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkgpincludesmiscphp">trunk/gp-includes/misc.php</a></li>
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<h3>Diff</h3>
<a id="trunkgpincludesmiscphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/gp-includes/misc.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/gp-includes/misc.php 2015-07-17 13:05:01 UTC (rev 1077)
+++ trunk/gp-includes/misc.php 2015-07-17 13:51:03 UTC (rev 1078)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -459,3 +459,58 @@
</span><span class="cx" style="display: block; padding: 0 10px"> function gp_is_between_exclusive( $value, $start, $end ) {
</span><span class="cx" style="display: block; padding: 0 10px"> return $value > $start && $value < $end;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+if ( ! function_exists( 'wp_list_pluck' ) ) {
+ /**
+ * Pluck a certain field out of each object in a list.
+ *
+ * This has the same functionality and prototype of
+ * array_column() (PHP 5.5) but also supports objects.
+ *
+ * @param array $list List of objects or arrays
+ * @param int|string $field Field from the object to place instead of the entire object
+ * @param int|string $index_key Optional. Field from the object to use as keys for the new array.
+ * Default null.
+ * @return array Array of found values. If $index_key is set, an array of found values with keys
+ * corresponding to $index_key.
+ */
+ function wp_list_pluck( $list, $field, $index_key = null ) {
+ if ( ! $index_key ) {
+ /*
+ * This is simple. Could at some point wrap array_column()
+ * if we knew we had an array of arrays.
+ */
+ foreach ( $list as $key => $value ) {
+ if ( is_object( $value ) ) {
+ $list[ $key ] = $value->$field;
+ } else {
+ $list[ $key ] = $value[ $field ];
+ }
+ }
+ return $list;
+ }
+
+ /*
+ * When index_key is not set for a particular item, push the value
+ * to the end of the stack. This is how array_column() behaves.
+ */
+ $newlist = array();
+ foreach ( $list as $value ) {
+ if ( is_object( $value ) ) {
+ if ( isset( $value->$index_key ) ) {
+ $newlist[ $value->$index_key ] = $value->$field;
+ } else {
+ $newlist[] = $value->$field;
+ }
+ } else {
+ if ( isset( $value[ $index_key ] ) ) {
+ $newlist[ $value[ $index_key ] ] = $value[ $field ];
+ } else {
+ $newlist[] = $value[ $field ];
+ }
+ }
+ }
+
+ return $newlist;
+ }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span></span></pre>
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