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authorAndrey Andreev <narf@bofh.bg>2012-04-09 15:31:50 +0200
committerAndrey Andreev <narf@bofh.bg>2012-04-09 15:31:50 +0200
commit2271874d9c2bb4d5959f4287dea3c7c3b5b0c732 (patch)
tree2497c63c3252b1ace676c07585f32611b84cb16d /system/database/drivers/mssql/mssql_driver.php
parent8e160e471259ad01c0e994e7ce5797c2a51afd7a (diff)
parent918be7963f6fa3461d612ea7ca4c9774c12f9da5 (diff)
Merge upstream branch
Diffstat (limited to 'system/database/drivers/mssql/mssql_driver.php')
-rw-r--r--system/database/drivers/mssql/mssql_driver.php54
1 files changed, 40 insertions, 14 deletions
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index ae3b843ee..90609a84d 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -425,6 +425,38 @@ class CI_DB_mssql_driver extends CI_DB {
// --------------------------------------------------------------------
/**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).' WHERE '.$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Truncate statement
*
* Generates a platform-specific truncate string from the supplied data
@@ -449,28 +481,22 @@ class CI_DB_mssql_driver extends CI_DB {
*
* @param string the table name
* @param array the where clause
+ * @param array the like clause
* @param string the limit clause
* @return string
*/
protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
{
- $conditions = '';
-
- if (count($where) > 0 OR count($like) > 0)
- {
- $conditions = "\nWHERE ";
- $conditions .= implode("\n", $this->ar_where);
+ $conditions = array();
- if (count($where) > 0 && count($like) > 0)
- {
- $conditions .= " AND ";
- }
- $conditions .= implode("\n", $like);
- }
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
- $limit = ( ! $limit) ? '' : ' LIMIT '.$limit;
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
- return "DELETE FROM ".$table.$conditions.$limit;
+ return ($limit)
+ ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
+ : 'DELETE FROM '.$table.$conditions;
}
// --------------------------------------------------------------------