From: stronk7 <stronk7>
Date: Sun, 8 Oct 2006 09:58:11 +0000 (+0000)
Subject: Now Oracle uses the new find_sequence_name() function to find the
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=5fbab6173ac934b460920771399d4f6d8fe21e29;p=moodle.git

Now Oracle uses the new find_sequence_name() function to find the
correct sequence name for each table on insert.

Also, introduced initial hooks to support Oracle LOBs in insert_record()
---

diff --git a/lib/dmllib.php b/lib/dmllib.php
index 9644a1ee96..d8d06a41f7 100644
--- a/lib/dmllib.php
+++ b/lib/dmllib.php
@@ -1105,11 +1105,16 @@ function insert_record($table, $dataobject, $returnid=true, $primarykey='id') {
 /// get the next sequence value here and insert it manually.
     if ( $CFG->dbtype === 'oci8po' && $returnid == true) {
     /// We need this here (move this function to dmlib?)
-        include_once($CFG->libdir . '/xmldb/classes/generators/XMLDBGenerator.class.php');
-        include_once($CFG->libdir . '/xmldb/classes/generators/oci8po/oci8po.class.php');
-        $generator = new XMLDBoci8po();
-        $generator->setPrefix($CFG->prefix);
-        $seqname = $generator->getNameForObject($table, $primarykey, 'seq');
+        include_once($CFG->libdir . '/ddllib.php');
+        $xmldb_table = new XMLDBTable($table);
+        $seqname = find_sequence_name($xmldb_table);
+        if (!$seqname) {
+        /// Fallback, seqname not found, something is wrong. Inform and use the alternative getNameForObject() method
+            debugging('Sequence name for table ' . $table->getName() . ' not found', DEBUG_DEVELOPER);
+            $generator = new XMLDBoci8po();
+            $generator->setPrefix($CFG->prefix);
+            $seqname = $generator->getNameForObject($table, $primarykey, 'seq');
+        }
         if ($nextval = (int)get_field_sql("SELECT $seqname.NEXTVAL from dual")) {
             $dataobject->{$primarykey} = $nextval;
         }
@@ -1120,12 +1125,28 @@ function insert_record($table, $dataobject, $returnid=true, $primarykey='id') {
         oracle_dirty_hack($table, $dataobject); // Convert object to the correct "empty" values for Oracle DB
     }
 /// End DIRTY HACK
+
+/// Under Oracle we have our own insert record process
+/// detect all the clob/blob fields and change their contents to @#CLOB#@ and @#BLOB#@
+/// saving them into $foundclobs and $foundblobs [$fieldname]->contents
+    if ($CFG->dbtype == 'oci8po' && !empty($dataobject->{$primarykey})) {
+        $foundclobs = array();
+        $foundblobs = array();
+        ///TODO
+    }
     
 /// Get the correct SQL from adoDB
     if (!$insertSQL = $db->GetInsertSQL($rs, (array)$dataobject, true)) {
         return false;
     }
 
+/// Under Oracle, replace all the '@#CLOB#@' and '@#BLOB#@' ocurrences to empty_clob() and empty_blob()
+/// if we know we have some of them in the query
+    if ($CFG->dbtype == 'oci8po' && !empty($dataobject->{$primarykey}) && 
+        (!empty($foundclobs) || !empty($foundblobs))) {
+        ///TODO
+    }
+
 /// Run the SQL statement
     if (!$rs = $db->Execute($insertSQL)) {
         debugging($db->ErrorMsg() .'<br /><br />'.$insertSQL);
@@ -1136,6 +1157,13 @@ function insert_record($table, $dataobject, $returnid=true, $primarykey='id') {
         return false;
     }
 
+/// Under Oracle, finally, Update all the Clobs and Blobs present in the record
+/// if we know we have some of them in the query
+    if ($CFG->dbtype == 'oci8po' && !empty($dataobject->{$primarykey}) && 
+        (!empty($foundclobs) || !empty($foundblobs))) {
+        //TODO
+    }
+
 /// If a return ID is not needed then just return true now
     if (!$returnid) {
         return true;