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MDL-14679: mssql and oracle generators now supporting new temptables impl.

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This commit is contained in:
stronk7 2009-09-28 18:17:59 +00:00
parent c6a1e0329a
commit faceaf5580
2 changed files with 34 additions and 2 deletions
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6
lib/ddl/mssql_sql_generator.php
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@ -111,7 +111,11 @@ class mssql_sql_generator extends sql_generator {
*/
public function getTableName(xmldb_table $xmldb_table, $quoted=true) {
/// Get the name, supporting special mssql names for temp tables
$tablename = $this->temptables->get_correct_name($xmldb_table->getName());
if ($this->temptables->is_temptable($xmldb_table->getName())) {
$tablename = $this->temptables->get_correct_name($xmldb_table->getName());
} else {
$tablename = $this->prefix . $xmldb_table->getName();
}
/// Apply quotes optionally
if ($quoted) {

30
lib/ddl/oracle_sql_generator.php
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@ -58,10 +58,13 @@ class oracle_sql_generator extends sql_generator {
public $alter_column_sql = 'ALTER TABLE TABLENAME MODIFY (COLUMNSPECS)'; //The SQL template to alter columns
private $temptables; // Control existing temptables (oci_native_moodle_temptables object)
/**
* Creates one new XMLDBoci8po
*/
public function __construct($mdb) {
public function __construct($mdb, $temptables = null) {
$this->temptables = $temptables;
parent::__construct($mdb);
}
@ -94,12 +97,36 @@ class oracle_sql_generator extends sql_generator {
"CREATE SEQUENCE $seqname START WITH $value INCREMENT BY 1 NOMAXVALUE CACHE $this->sequence_cache_size");
}
/**
* Given one xmldb_table, returns it's correct name, depending of all the parametrization
* Overriden to allow change of names in temp tables
*
* @param xmldb_table table whose name we want
* @param boolean to specify if the name must be quoted (if reserved word, only!)
* @return string the correct name of the table
*/
public function getTableName(xmldb_table $xmldb_table, $quoted=true) {
/// Get the name, supporting special oci names for temp tables
if ($this->temptables->is_temptable($xmldb_table->getName())) {
$tablename = $this->temptables->get_correct_name($xmldb_table->getName());
} else {
$tablename = $this->prefix . $xmldb_table->getName();
}
/// Apply quotes optionally
if ($quoted) {
$tablename = $this->getEncQuoted($tablename);
}
return $tablename;
}
/**
* Given one correct xmldb_table, returns the SQL statements
* to create temporary table (inside one array)
*/
public function getCreateTempTableSQL($xmldb_table) {
$this->temptables->add_temptable($xmldb_table->getName());
$sqlarr = $this->getCreateTableSQL($xmldb_table);
$sqlarr = preg_replace('/^CREATE TABLE (.*)/s', 'CREATE GLOBAL TEMPORARY TABLE $1 ON COMMIT PRESERVE ROWS', $sqlarr);
return $sqlarr;
@ -112,6 +139,7 @@ class oracle_sql_generator extends sql_generator {
public function getDropTempTableSQL($xmldb_table) {
$sqlarr = $this->getDropTableSQL($xmldb_table);
array_unshift($sqlarr, "TRUNCATE TABLE ". $this->getTableName($xmldb_table)); // oracle requires truncate before being able to drop a temp table
$this->temptables->delete_temptable($xmldb_table->getName());
return $sqlarr;
}