From c59dfb4730d4a1e8819319318e40ac42bce1d181 Mon Sep 17 00:00:00 2001
From: Neil Blakey-Milner <nbm@knowledgetree.com>
Date: Wed, 2 Nov 2005 14:10:43 +0000
Subject: [PATCH] KTMetadataUtil::synchroniseMetadata allows for a field's lookup options to be synchronised from a list of values (from LDAP, another database, or manually).

---
 lib/metadata/metadatautil.inc.php | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+), 0 deletions(-)

diff --git a/lib/metadata/metadatautil.inc.php b/lib/metadata/metadatautil.inc.php
index 7abbce2..783085b 100644
--- a/lib/metadata/metadatautil.inc.php
+++ b/lib/metadata/metadatautil.inc.php
@@ -532,6 +532,49 @@ class KTMetadataUtil {
         return true;
     }
     // }}}
+    
+    // {{{ synchroniseMetadata
+    /**
+     * This function takes a list of metadata values and synchronises
+     * those values into the values that already exist for the field by
+     * adding new values and disabling values that aren't in the new
+     * list.
+     *
+     * XXX: Scalability: This function 
+     */
+    function synchroniseMetadata($oField, $aNewMetadata) {
+        $iFieldId = KTUtil::getId($oField);
+
+        $aCurrentAllValues = Metadata::getValuesByDocumentField($iFieldId);
+        $aCurrentEnabledValues = Metadata::getEnabledValuesByDocumentField($iFieldId);
+        $aCurrentDisabledValues = Metadata::getDisabledValuesByDocumentField($iFieldId);
+
+        $aToBeAddedValues = array_diff($aNewMetadata, $aCurrentAllValues);
+        $aToBeDisabledValues = array_diff($aCurrentEnabledValues, $aNewMetadata);
+        $aToBeEnabledValues = array_intersect($aCurrentDisabledValues, $aNewMetadata);
+
+        foreach ($aToBeAddedValues as $sValue) {
+            $oMetadata =& Metadata::createFromArray(array(
+                'name' => $sValue,
+                'docfieldid' => $iFieldId,
+            ));
+        }
+
+        foreach ($aToBeDisabledValues as $sValue) {
+            $oMetadata =& Metadata::getByValueAndDocumentField($sValue, $iFieldId);
+            $oMetadata->updateFromArray(array(
+                'disabled' => true,
+            ));
+        }
+
+        foreach ($aToBeEnabledValues as $sValue) {
+            $oMetadata =& Metadata::getByValueAndDocumentField($sValue, $iFieldId);
+            $oMetadata->updateFromArray(array(
+                'disabled' => false,
+            ));
+        }
+    }
+    // }}}
 }
 
 ?>
--
libgit2 0.21.4