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-rw-r--r--framework/Data/Common/TDbTableInfo.php24
1 files changed, 16 insertions, 8 deletions
diff --git a/framework/Data/Common/TDbTableInfo.php b/framework/Data/Common/TDbTableInfo.php
index e2aae3d0..455dbc33 100644
--- a/framework/Data/Common/TDbTableInfo.php
+++ b/framework/Data/Common/TDbTableInfo.php
@@ -27,7 +27,13 @@ class TDbTableInfo extends TComponent
private $_columns;
- private $_lowercase;
+ private $_lowercase;
+
+ /**
+ * @var null|array
+ * @since 3.1.7
+ */
+ private $_names = null;
/**
* Sets the database table meta data information.
@@ -118,11 +124,14 @@ class TDbTableInfo extends TComponent
* @return array table column names (identifier quoted)
*/
public function getColumnNames()
- {
- $names=array();
- foreach($this->getColumns() as $column)
- $names[] = $column->getColumnName();
- return $names;
+ {
+ if($this->_names===null)
+ {
+ $this->_names=array();
+ foreach($this->getColumns() as $column)
+ $this->_names[] = $column->getColumnName();
+ }
+ return $this->_names;
}
/**
@@ -154,5 +163,4 @@ class TDbTableInfo extends TComponent
}
return $this->_lowercase;
}
-}
-
+} \ No newline at end of file