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| author | Nathan Guse <nathaniel.guse@gmail.com> | 2013-07-23 11:13:25 -0500 |
|---|---|---|
| committer | Nathan Guse <nathaniel.guse@gmail.com> | 2013-07-23 11:13:25 -0500 |
| commit | 485c6ab3553f518b157610ee1144bbcbef63f797 (patch) | |
| tree | 0c50392c4716511e118eeabd3f48cceb3ac7e906 /phpBB/phpbb/db/driver/mysql_base.php | |
| parent | 41d8bfa974900c9befbde06cc08060eb8a552ec8 (diff) | |
| parent | be59885d5fd4b44f1c43994dec928eda816f9ab8 (diff) | |
| download | forums-485c6ab3553f518b157610ee1144bbcbef63f797.tar forums-485c6ab3553f518b157610ee1144bbcbef63f797.tar.gz forums-485c6ab3553f518b157610ee1144bbcbef63f797.tar.bz2 forums-485c6ab3553f518b157610ee1144bbcbef63f797.tar.xz forums-485c6ab3553f518b157610ee1144bbcbef63f797.zip | |
Merge branch 'develop' of github.com:phpbb/phpbb3 into ticket/11667
# By Joas Schilling (224) and others
# Via Andreas Fischer (23) and others
* 'develop' of github.com:phpbb/phpbb3: (385 commits)
[ticket/11734] Readd accidently removed language strings of forum permissions
[ticket/11620] Whitespace and combine function into test_case
[ticket/11620] Move check_ban_test functions to setUp/tearDown for clarity
[ticket/11620] Changed incorrect global variable
[ticket/11620] Minor indentation changes and comment clarity
[ticket/11733] Fix "Illegal offset type" Warning caused by overall feed
[ticket/11733] Add browse test for feed.php
[ticket/11731] Remove static calls to captcha garbage collector
[ticket/11728] Replace topic_approved with topic_visibility
[ticket/11620] Expected and actual test conditions wrongly swapped
[ticket/11620] Space between . in directory import concatenation
[ticket/11620] Changes to match merge
[ticket/11620] Changes for code guidelines consistency
[ticket/11620] Fix a static calls to non-static for session captcha
[ticket/11620] Cleanup creation_test that was renamed on a cherry-pick
[ticket/11620] Update auth_provider for new interface
[ticket/11620] Added garbage_collection_test
[ticket/11620] Fixed check_ban_test errors with cache and ban warning message
[ticket/11620] Fixed a typo on check_ban_test
[ticket/11620] Refactored check_isvalid_test to use session_test_case
...
Diffstat (limited to 'phpBB/phpbb/db/driver/mysql_base.php')
| -rw-r--r-- | phpBB/phpbb/db/driver/mysql_base.php | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/phpBB/phpbb/db/driver/mysql_base.php b/phpBB/phpbb/db/driver/mysql_base.php new file mode 100644 index 0000000000..ba44ea61aa --- /dev/null +++ b/phpBB/phpbb/db/driver/mysql_base.php @@ -0,0 +1,145 @@ +<?php +/** +* +* @package dbal +* @copyright (c) 2013 phpBB Group +* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2 +* +*/ + +/** +* @ignore +*/ +if (!defined('IN_PHPBB')) +{ + exit; +} + +/** +* Abstract MySQL Database Base Abstraction Layer +* @package dbal +*/ +abstract class phpbb_db_driver_mysql_base extends phpbb_db_driver +{ + /** + * {@inheritDoc} + */ + public function sql_concatenate($expr1, $expr2) + { + return 'CONCAT(' . $expr1 . ', ' . $expr2 . ')'; + } + + /** + * Build LIMIT query + */ + function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) + { + $this->query_result = false; + + // if $total is set to 0 we do not want to limit the number of rows + if ($total == 0) + { + // MySQL 4.1+ no longer supports -1 in limit queries + $total = '18446744073709551615'; + } + + $query .= "\n LIMIT " . ((!empty($offset)) ? $offset . ', ' . $total : $total); + + return $this->sql_query($query, $cache_ttl); + } + + /** + * Gets the estimated number of rows in a specified table. + * + * @param string $table_name Table name + * + * @return string Number of rows in $table_name. + * Prefixed with ~ if estimated (otherwise exact). + * + * @access public + */ + function get_estimated_row_count($table_name) + { + $table_status = $this->get_table_status($table_name); + + if (isset($table_status['Engine'])) + { + if ($table_status['Engine'] === 'MyISAM') + { + return $table_status['Rows']; + } + else if ($table_status['Engine'] === 'InnoDB' && $table_status['Rows'] > 100000) + { + return '~' . $table_status['Rows']; + } + } + + return parent::get_row_count($table_name); + } + + /** + * Gets the exact number of rows in a specified table. + * + * @param string $table_name Table name + * + * @return string Exact number of rows in $table_name. + * + * @access public + */ + function get_row_count($table_name) + { + $table_status = $this->get_table_status($table_name); + + if (isset($table_status['Engine']) && $table_status['Engine'] === 'MyISAM') + { + return $table_status['Rows']; + } + + return parent::get_row_count($table_name); + } + + /** + * Gets some information about the specified table. + * + * @param string $table_name Table name + * + * @return array + * + * @access protected + */ + function get_table_status($table_name) + { + $sql = "SHOW TABLE STATUS + LIKE '" . $this->sql_escape($table_name) . "'"; + $result = $this->sql_query($sql); + $table_status = $this->sql_fetchrow($result); + $this->sql_freeresult($result); + + return $table_status; + } + + /** + * Build LIKE expression + * @access private + */ + function _sql_like_expression($expression) + { + return $expression; + } + + /** + * Build db-specific query data + * @access private + */ + function _sql_custom_build($stage, $data) + { + switch ($stage) + { + case 'FROM': + $data = '(' . $data . ')'; + break; + } + + return $data; + } +} |