From e4320cab263a45f8920599d5c919230309e7284c Mon Sep 17 00:00:00 2001
From: xue <>
Date: Sat, 6 Oct 2007 21:48:38 +0000
Subject: Added TDbCommand.queryColumn()
---
framework/Data/TDbCommand.php | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
(limited to 'framework')
diff --git a/framework/Data/TDbCommand.php b/framework/Data/TDbCommand.php
index f5d7d647..b4bd9dd4 100644
--- a/framework/Data/TDbCommand.php
+++ b/framework/Data/TDbCommand.php
@@ -283,6 +283,23 @@ class TDbCommand extends TComponent
throw new TDbException('dbcommand_query_failed',$e->getMessage(),$this->getDebugStatementText());
}
}
+
+ /**
+ * Executes the SQL statement and returns the first column of the result.
+ * This is a convenient method of {@link query} when only the first column of data is needed.
+ * Note, the column returned will contain the first element in each row of result.
+ * @return array the first column of the query result. Empty array if no result.
+ * @throws TDbException execution failed
+ * @since 3.1.2
+ */
+ public function queryColumn()
+ {
+ $rows=$this->query()->readAll();
+ $column=array();
+ foreach($rows as $row)
+ $column[]=current($row);
+ return $column;
+ }
}
?>
\ No newline at end of file
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