diff options
Diffstat (limited to 'framework/Data/Common/IbmDb2/TIbmMetaDataInspector.php')
-rw-r--r-- | framework/Data/Common/IbmDb2/TIbmMetaDataInspector.php | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/framework/Data/Common/IbmDb2/TIbmMetaDataInspector.php b/framework/Data/Common/IbmDb2/TIbmMetaDataInspector.php new file mode 100644 index 00000000..1cd8af95 --- /dev/null +++ b/framework/Data/Common/IbmDb2/TIbmMetaDataInspector.php @@ -0,0 +1,113 @@ +<?php
+/**
+ * TIbmMetaDataInspector class file.
+ *
+ * @author Cesar Ramos <cramos[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005-2007 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Id: TIbmMetaDataInspector.php 1807 2007-03-31 06:42:15Z wei $
+ * @package System.Data.ActiveRecord.Vendor
+ */
+Prado::using('System.Data.ActiveRecord.Vendor.TDbMetaDataInspector');
+Prado::using('System.Data.ActiveRecord.Vendor.TIbmColumnMetaData');
+Prado::using('System.Data.ActiveRecord.Vendor.TIbmMetaData');
+
+/**
+ * TIbmMetaDataInspector class.
+ *
+ * Column details for IBM DB2 database. Using php_pdo_ibm.dll extension.
+ *
+ * @author Cesar Ramos <cramos[at]gmail[dot]com>
+ * @version $Id: TIbmMetaDataInspector.php 1807 2007-03-31 06:42:15Z wei $
+ * @package System.Data.ActiveRecord.Vendor
+ * @since 3.1
+ */
+class TIbmMetaDataInspector extends TDbMetaDataInspector
+{
+ private $_schema;
+
+ /**
+ * @param string default schema.
+ */
+ public function setSchema($schema)
+ {
+ $this->_schema=$schema;
+ }
+
+ /**
+ * @return string default schema.
+ */
+ public function getSchema()
+ {
+ return $this->_schema;
+ }
+ /**
+ * Get the column definitions for given table.
+ * @param string table name.
+ * @return array column name value pairs of column meta data.
+ */
+ protected function getColumnDefinitions($table)
+ {
+ if(count($parts= explode('.', $table)) > 1)
+ {
+ $tablename = $parts[1];
+ $schema = $parts[0];
+ }
+ else
+ {
+ $tablename = $parts[0];
+ $schema = $this->getSchema();
+ }
+ $sql="SELECT * FROM SYSCAT.COLUMNS WHERE TABNAME='".strtoupper($tablename)."'";
+ if ($schema)
+ $sql=$sql." AND TABSCHEMA='".strtoupper($schema)."'";
+
+ $conn = $this->getDbConnection();
+ $conn->setActive(true);
+ $command = $conn->createCommand($sql);
+ $command->prepare();
+ $result=$command->query($sql);
+ foreach ($result as $col)
+ $cols[strtolower($col['COLNAME'])] = $this->getColumnMetaData($col);
+ return $cols;
+ }
+
+ protected function getColumnMetaData($col)
+ {
+ $name = strtolower($col['COLNAME']);
+ $type = $col['TYPENAME'];
+ $length = $col['LENGTH'];
+ $notNull = $col['NULLS']==='N'?1:0;
+ $autoIncrement=$col['IDENTITY']==='Y'?1:0;
+ $default = $col['DEFAULT'];
+ $primaryKey = $col['KEYSEQ']?1:0;
+ return new TIbmColumnMetaData($name,$type,$length,$notNull,$autoIncrement,$default,$primaryKey);
+ }
+
+ /**
+ * Not implemented, IBM does not always have foreign key constraints.
+ */
+ protected function getConstraintKeys($table)
+ {
+ return array('primary'=>array(), 'foreign'=>array());
+ }
+
+ /**
+ * Create a new instance of meta data.
+ * @param string table name
+ * @param array column meta data
+ * @param array primary key meta data
+ * @param array foreign key meta data.
+ * @return TDbMetaData table meta data.
+ */
+ protected function createMetaData($table, $columns, $primary, $foreign)
+ {
+ $pks = array();
+ foreach($columns as $name=>$column)
+ if($column->getIsPrimaryKey())
+ $pks[] = $name;
+ return new TIbmMetaData($table,$columns,$pks);
+ }
+}
+?>
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