Source of file SQL.php
Size: 4,031 Bytes - Last Modified: 2018-01-24T18:09:59+00:00
src/Drivers/Mysql/SQL.php
12345678910111213141516171819202122232425262728293031323334
Covered by 19 test(s):
3536
Covered by 2 test(s):
373839
Covered by 17 test(s):
4041424344454647484950
Covered by 1 test(s):
51525354555657585960
Covered by 1 test(s):
61626364656667686970
Covered by 1 test(s):
717273747576777879808182838485868788
Covered by 3 test(s):
89909192939495969798
Covered by 1 test(s):
99100101102103104105106107108109
Covered by 1 test(s):
110111112113114115116117118119
Covered by 1 test(s):
120121122123124125126127128129
Covered by 1 test(s):
130131132133134135136137138139
Covered by 1 test(s):
140141142143144145146147148149
Covered by 1 test(s):
150151152153154155156157158159
Covered by 1 test(s):
160161162163164165166167168169170
Covered by 1 test(s):
171172173174175176177178179180181182183184185186187188189190191192193194
Covered by 1 test(s):
195196197198199200201202203204205206
Covered by 1 test(s):
207208
| <?php declare(strict_types=1); /** * Query * * SQL Query Builder / Database Abstraction Layer * * PHP version 7.1 * * @package Query * @author Timothy J. Warren <tim@timshomepage.net> * @copyright 2012 - 2018 Timothy J. Warren * @license http://www.opensource.org/licenses/mit-license.html MIT License * @link https://git.timshomepage.net/aviat4ion/Query */ namespace Query\Drivers\Mysql; use Query\Drivers\AbstractSQL; /** * MySQL specific SQL */ class SQL extends AbstractSQL { /** * Limit clause * * @param string $sql * @param int $limit * @param int|boolean $offset * @return string */ public function limit(string $sql, int $limit, $offset=FALSE): string { if ( ! is_numeric($offset)) { return $sql." LIMIT {$limit}"; } return $sql." LIMIT {$offset}, {$limit}"; } /** * Get the query plan for the sql query * * @param string $sql * @return string */ public function explain(string $sql): string { return "EXPLAIN EXTENDED {$sql}"; } /** * Random ordering keyword * * @return string */ public function random(): string { return ' RAND() DESC'; } /** * Returns sql to list other databases * * @return string */ public function dbList(): string { return "SHOW DATABASES WHERE `Database` NOT IN ('information_schema','mysql')"; } /** * Returns sql to list tables * * @param string $database * @return string */ public function tableList($database=''): string { // @codeCoverageIgnoreStart if ( ! empty($database)) { return "SHOW TABLES FROM `{$database}`"; } // @codeCoverageIgnoreEnd return 'SHOW TABLES'; } /** * Overridden in MySQL class * * @return string */ public function systemTableList(): string { return 'SELECT `TABLE_NAME` FROM `information_schema`.`TABLES` WHERE `TABLE_SCHEMA`=\'information_schema\''; } /** * Returns sql to list views * * @return string */ public function viewList(): string { return 'SELECT `table_name` FROM `information_schema`.`views`'; } /** * Returns sql to list triggers * * @return string */ public function triggerList(): string { return 'SHOW TRIGGERS'; } /** * Return sql to list functions * * @return string */ public function functionList(): string { return 'SHOW FUNCTION STATUS'; } /** * Return sql to list stored procedures * * @return string */ public function procedureList(): string { return 'SHOW PROCEDURE STATUS'; } /** * Return sql to list sequences * * @return string */ public function sequenceList(): ?string { return NULL; } /** * SQL to show list of field types * * @return string */ public function typeList(): string { return "SELECT DISTINCT `DATA_TYPE` FROM `information_schema`.`COLUMNS`"; } /** * SQL to show infromation about columns in a table * * @param string $table * @return string */ public function columnList(string $table): string { return "SHOW FULL COLUMNS FROM {$table}"; } /** * Get the list of foreign keys for the current * table * * @param string $table * @return string */ public function fkList(string $table): string { return <<<SQL SELECT DISTINCT `kcu`.`COLUMN_NAME` as `child_column`, `kcu`.`REFERENCED_TABLE_NAME` as `parent_table`, `kcu`.`REFERENCED_COLUMN_NAME` as `parent_column`, `rc`.`UPDATE_RULE` AS `update`, `rc`.`DELETE_RULE` AS `delete` FROM `INFORMATION_SCHEMA`.`TABLE_CONSTRAINTS` `tc` INNER JOIN `INFORMATION_SCHEMA`.`KEY_COLUMN_USAGE` `kcu` ON `kcu`.`CONSTRAINT_NAME`=`tc`.`CONSTRAINT_NAME` INNER JOIN `INFORMATION_SCHEMA`.`REFERENTIAL_CONSTRAINTS` `rc` ON `rc`.`CONSTRAINT_NAME`=`tc`.`CONSTRAINT_NAME` WHERE `tc`.`CONSTRAINT_TYPE`='FOREIGN KEY' AND `tc`.`TABLE_NAME`='{$table}' SQL; } /** * Get the list of indexes for the current table * * @param string $table * @return string */ public function indexList(string $table): string { return "SHOW INDEX IN {$table}"; } } |