From: stronk7 <stronk7>
Date: Sun, 8 Oct 2006 09:38:09 +0000 (+0000)
Subject: Added find_sequence_name() to be used by insert_record() to get the correct sequence
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=c5ac44c69e9692c7c504bb2822bc145b78c1b149;p=moodle.git

Added find_sequence_name() to be used by insert_record() to get the correct sequence
---

diff --git a/lib/ddllib.php b/lib/ddllib.php
index b541993b59..713559b422 100644
--- a/lib/ddllib.php
+++ b/lib/ddllib.php
@@ -469,6 +469,41 @@ function find_index_name($table, $index) {
     return false;
 }
 
+/**
+ * Given one XMLDBTable, the function returns the name of its sequence in DB (if exists)
+ * of false if it doesn't exist
+ *
+ * @param XMLDBTable the table to be searched
+ * @return string sequence name of false
+ */
+function find_sequence_name($table) {
+
+    global $CFG, $db;
+
+    $sequencename = false;
+
+/// Do this function silenty (to avoid output in install/upgrade process)
+    $olddbdebug = $db->debug;
+    $db->debug = false;
+
+    if (strtolower(get_class($table)) != 'xmldbtable') {
+        $db->debug = $olddbdebug; //Re-set original $db->debug
+        return false;
+    }
+
+/// Check table exists
+    if (!table_exists($table)) {
+        debugging('Table ' . $table->getName() . ' do not exist. Sequence not found', DEBUG_DEVELOPER);
+        $db->debug = $olddbdebug; //Re-set original $db->debug
+        return false; //Table doesn't exist, nothing to do
+    }
+
+    $sequencename = $table->getSequenceFromDB($CFG->dbtype, $CFG->prefix);
+
+    $db->debug = $olddbdebug; //Re-set original $db->debug
+    return $sequencename;
+}
+
 /**
  * This function will load one entire XMLDB file, generating all the needed
  * SQL statements, specific for each RDBMS ($CFG->dbtype) and, finally, it