diff options
author | Timothy Warren <tim@timshomepage.net> | 2012-05-30 13:57:26 +0200 |
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committer | Timothy Warren <tim@timshomepage.net> | 2012-05-30 13:57:26 +0200 |
commit | fd2ceab417bbb696134910ce0eaeca34bea3e1e5 (patch) | |
tree | 0eeb742a553a36bf2375793661ff3e7925f792a6 /system/database/drivers/postgre | |
parent | 6763522d29416b7db90a6d3c5dceffe1536d8efe (diff) | |
parent | 11fd4b8759438f216318e3e1e004f918b88a56ad (diff) |
Merge branch 'develop' of git://github.com/EllisLab/CodeIgniter into email
Diffstat (limited to 'system/database/drivers/postgre')
-rw-r--r-- | system/database/drivers/postgre/postgre_driver.php | 70 |
1 files changed, 41 insertions, 29 deletions
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php index 0ddfd0abe..c2a188416 100644 --- a/system/database/drivers/postgre/postgre_driver.php +++ b/system/database/drivers/postgre/postgre_driver.php @@ -390,35 +390,6 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** - * "Count All" query - * - * Generates a platform-specific query string that counts all records in - * the specified database - * - * @param string - * @return string - */ - public function count_all($table = '') - { - if ($table == '') - { - return 0; - } - - $query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE)); - if ($query->num_rows() == 0) - { - return 0; - } - - $query = $query->row(); - $this->_reset_select(); - return (int) $query->numrows; - } - - // -------------------------------------------------------------------- - - /** * Show table query * * Generates a platform-specific query string so that the table names can be fetched @@ -539,6 +510,47 @@ class CI_DB_postgre_driver extends CI_DB { // -------------------------------------------------------------------- /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @param string the table name + * @param array the update data + * @param array the where clause + * @return string + */ + protected function _update_batch($table, $values, $index, $where = NULL) + { + $ids = array(); + foreach ($values as $key => $val) + { + $ids[] = $val[$index]; + + foreach (array_keys($val) as $field) + { + if ($field != $index) + { + $final[$field][] = 'WHEN '.$val[$index].' THEN '.$val[$field]; + } + } + } + + $cases = ''; + foreach ($final as $k => $v) + { + $cases .= $k.' = (CASE '.$k."\n" + .implode("\n", $v)."\n" + .'ELSE '.$k.' END), '; + } + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) + .' WHERE '.(($where != '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') + .$index.' IN('.implode(',', $ids).')'; + } + + // -------------------------------------------------------------------- + + /** * Delete statement * * Generates a platform-specific delete string from the supplied data |