diff options
| author | wei <> | 2007-05-03 01:37:21 +0000 |
|---|---|---|
| committer | wei <> | 2007-05-03 01:37:21 +0000 |
| commit | ea9e7eb535b460218b693d4e5fec80297eb3e360 (patch) | |
| tree | 8dc4f4ac6d29989ba912a6013ffa6590c71e857d /framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php | |
| parent | 1ae09931b2572d9c3067c99f841a60cb3330b3f3 (diff) | |
Add northwind db demo.
Diffstat (limited to 'framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php')
| -rw-r--r-- | framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php b/framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php new file mode 100644 index 00000000..9a818ab9 --- /dev/null +++ b/framework/Data/Common/Pgsql/TPgsqlCommandBuilder.php @@ -0,0 +1,70 @@ +<?php
+/**
+ * TPgsqlCommandBuilder class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright © 2005-2007 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Id: TDbCommandBuilder.php 1863 2007-04-12 12:43:49Z wei $
+ * @package System.Data.Common
+ */
+
+Prado::using('System.Data.Common.TDbCommandBuilder');
+
+/**
+ * TPgsqlCommandBuilder provides specifics methods to create limit/offset query commands
+ * for Pgsql database.
+ *
+ * @author Wei Zhuo <weizho[at]gmail[dot]com>
+ * @version $Id: TDbCommandBuilder.php 1863 2007-04-12 12:43:49Z wei $
+ * @package System.Data.Common
+ * @since 3.1
+ */
+class TPgsqlCommandBuilder extends TDbCommandBuilder
+{
+ /**
+ * Overrides parent implementation. Only column of type text or character (and its variants)
+ * accepts the LIKE criteria.
+ * @param array list of column id for potential search condition.
+ * @param string string of keywords
+ * @return string SQL search condition matching on a set of columns.
+ */
+ public function getSearchExpression($fields, $keywords)
+ {
+ $columns = array();
+ foreach($fields as $field)
+ {
+ if($this->isSearchableColumn($this->getTableInfo()->getColumn($field)))
+ $columns[] = $field;
+ }
+ return parent::getSearchExpression($columns, $keywords);
+ }
+ /**
+ *
+ * @return boolean true if column can be used for LIKE searching.
+ */
+ protected function isSearchableColumn($column)
+ {
+ $type = strtolower($column->getDbType());
+ return $type === 'character varying' || $type === 'varchar' ||
+ $type === 'character' || $type === 'char' || $type === 'text';
+ }
+
+ /**
+ * Overrides parent implementation to use PostgreSQL's ILIKE instead of LIKE (case-sensitive).
+ * @param string column name.
+ * @param array keywords
+ * @return string search condition for all words in one column.
+ */
+ protected function getSearchCondition($column, $words)
+ {
+ $conditions=array();
+ foreach($words as $word)
+ $conditions[] = $column.' ILIKE '.$this->getDbConnection()->quoteString('%'.$word.'%');
+ return '('.implode(' AND ', $conditions).')';
+ }
+
+}
+
+?>
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