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admin dbtransfer: MDL-18225 also, let the caller control how transactions are used.

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This commit is contained in:
tjhunt 2009-02-13 02:49:25 +00:00
parent 2722269247
commit 8915fb70b0
2 changed files with 35 additions and 2 deletions
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29
lib/dtl/database_importer.php
View File

@ -35,6 +35,10 @@ class database_importer {
* @see begin_database_import).
*/
protected $check_schema;
/**
* How to use transactions.
*/
protected $transactionmode = 'allinone';
/**
* Object constructor.
@ -52,6 +56,17 @@ class database_importer {
$this->check_schema = $check_schema;
}
/**
* How to use transactions during the import.
* @param string $mode 'pertable', 'allinone' or 'none'.
*/
public function set_transaction_mode($mode) {
if (!in_array($mode, array('pertable', 'allinone', 'none'))) {
throw new coding_exception('Unknown transaction mode', $mode);
}
$this->transactionmode = $mode;
}
/**
* Callback function. Should be called only once database per import
* operation, before any database changes are made. It will check the database
@ -89,7 +104,9 @@ class database_importer {
}
throw new dbtransfer_exception('importschemaexception', $details);
}
$this->mdb->begin_sql();
if ($this->transactionmode == 'allinone') {
$this->mdb->begin_sql();
}
}
/**
@ -104,6 +121,9 @@ class database_importer {
* @return void
*/
public function begin_table_import($tablename, $schemaHash) {
if ($this->transactionmode == 'pertable') {
$this->mdb->begin_sql();
}
if (!$table = $this->schema->getTable($tablename)) {
throw new dbtransfer_exception('unknowntableexception', $tablename);
}
@ -132,6 +152,9 @@ class database_importer {
return;
}
}
if ($this->transactionmode == 'pertable') {
$this->mdb->commit_sql();
}
}
/**
@ -140,7 +163,9 @@ class database_importer {
* @return void
*/
public function finish_database_import() {
$this->mdb->commit_sql();
if ($this->transactionmode == 'allinone') {
$this->mdb->commit_sql();
}
}
/**

8
lib/dtl/database_mover.php
View File

@ -31,6 +31,14 @@ class database_mover extends database_exporter {
$this->importer = new database_importer($mdb_target, $check_schema);
}
/**
* How to use transactions during the transfer.
* @param string $mode 'pertable', 'allinone' or 'none'.
*/
public function set_transaction_mode($mode) {
$this->importer->set_transaction_mode($mode);
}
/**
* Callback function. Calls importer's begin_database_import callback method.
*