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MDL-17491 oracle native driver: when renaming tables, 1st task is to drop

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the associated on insert trigger, to avoid problems later.
This commit is contained in:
stronk7 2009-09-25 23:08:32 +00:00
parent 11f1e126e3
commit 24dc733e16
1 changed files with 9 additions and 10 deletions
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19
lib/ddl/oracle_sql_generator.php
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@ -253,21 +253,20 @@ class oracle_sql_generator extends sql_generator {
$oldseqname = $this->getSequenceFromDB($xmldb_table);
$newseqname = $this->getNameForObject($newname, $xmldb_field->getName(), 'seq');
/// Rename de sequence, disablig CACHE before and enablig it later
/// to avoid consuming on rename
$oldtriggername = $this->getTriggerFromDB($xmldb_table);
$newtriggername = $this->getNameForObject($newname, $xmldb_field->getName(), 'trg');
/// Drop old trigger (first of all)
$results[] = "DROP TRIGGER " . $oldtriggername;
/// Rename the sequence, disablig CACHE before and enablig it later
/// to avoid consuming of values on rename
$results[] = 'ALTER SEQUENCE ' . $oldseqname . ' NOCACHE';
$results[] = 'RENAME ' . $oldseqname . ' TO ' . $newseqname;
$results[] = 'ALTER SEQUENCE ' . $newseqname . ' CACHE';
$oldtriggername = $this->getTriggerFromDB($xmldb_table);
$newtriggername = $this->getNameForObject($newname, $xmldb_field->getName(), 'trg');
/// Drop old trigger
$results[] = "DROP TRIGGER " . $oldtriggername;
$newt = new xmldb_table($newname); /// Temp table for trigger code generation
/// Create new trigger
$newt = new xmldb_table($newname); /// Temp table for trigger code generation
$results = array_merge($results, $this->getCreateTriggerSQL($newt, $xmldb_field));
/// Rename all the check constraints in the table