fannie/cron/tasks/TableSnapshotTask.php
<?php
/*******************************************************************************
Copyright 2013 Whole Foods Co-op
This file is part of CORE-POS.
CORE-POS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
CORE-POS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
in the file license.txt along with IT CORE; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*********************************************************************************/
class TableSnapshotTask extends FannieTask
{
public $name = 'Table Snapshot';
public $description = 'Copies table contents to a backup table
Currently applies to products & custdata. Deprecates nightly.tablecache.php.';
public $default_schedule = array(
'min' => 0,
'hour' => 1,
'day' => '*',
'month' => '*',
'weekday' => '*',
);
public function run()
{
global $FANNIE_OP_DB;
$sql = FannieDB::get($FANNIE_OP_DB);
$sql->throwOnFailure(true);
// drop and recreate because SQL Server
// really hates identity inserts
try {
$sql->query("DROP TABLE productBackup");
} catch (Exception $ex) {
/**
@severity: most likely just means first ever run
and the backup table does not exist yet
*/
$this->cronMsg("Could not drop productBackup. Details: " . $ex->getMessage(),
FannieLogger::NOTICE);
}
try {
if ($sql->dbmsName() == "mssql") {
$sql->query("SELECT * INTO productBackup FROM products");
} else {
$sql->query("CREATE TABLE productBackup LIKE products");
$sql->query("INSERT INTO productBackup SELECT * FROM products");
}
} catch (Exception $ex) {
/**
@severity: backup did not happen. that's the primary
purpose of this task.
*/
$this->cronMsg("Failed to back up products. Details: " . $ex->getMessage(),
FannieLogger::ERROR);
}
try {
$sql->query("DROP TABLE custdataBackup");
} catch (Exception $ex) {
/**
@severity: most likely just means first ever run
and the backup table does not exist yet
*/
$this->cronMsg("Could not drop custdataBackup. Details: " . $ex->getMessage(),
FannieLogger::NOTICE);
}
try {
$model = new FloorSectionsListTableModel($sql);
$model->refresh();
} catch (Exception $ex) {
$this->cronMsg("Could not repopulate FloorSectionsListTable. Details: " . $ex->getMessage(),
FannieLogger::NOTICE);
}
try {
if ($sql->dbmsName() == "mssql") {
$sql->query("SELECT * INTO custdataBackup FROM custdata");
} else {
$sql->query("CREATE TABLE custdataBackup LIKE custdata");
$sql->query("INSERT INTO custdataBackup SELECT * FROM custdata");
}
} catch (Exception $ex) {
/**
@severity: backup did not happen. that's the primary
purpose of this task.
*/
$this->cronMsg("Failed to back up custdata. Details: " . $ex->getMessage(),
FannieLogger::ERROR);
}
try {
$map = $this->config->get('ARCHIVE_DB') . $sql->sep() . 'ProductAttributeMap';
$attr = $this->config->get('OP_DB') . $sql->sep() . 'ProductAttributes';
$query = "
INSERT INTO {$map} (dateID, upc, productAttributeID)
SELECT " . $sql->dateymd($sql->curdate()) . ",
upc,
MAX(productAttributeID)
FROM {$attr}
GROUP BY upc
ORDER BY upc";
$sql->query($query);
} catch (Exception $ex) {
$this->cronMsg("Could not get snapshot attributes. Details: " . $ex->getMessage(),
FannieLogger::NOTICE);
}
}
}