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Developer Documentation
- Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
- Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
- PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
/lib/dml/ -> sqlite3_pdo_moodle_database.php (source)
Experimental pdo database class.
| Copyright: | 2008 Andrei Bautu |
| License: | http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| File Size: | 382 lines (14 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 1 file lib/dml/pdo_moodle_database.php |
Defines 1 class
sqlite3_pdo_moodle_database:: (16 methods):
driver_installed()
get_dbfamily()
get_dbtype()
configure_dbconnection()
create_database()
get_dsn()
get_dbfilepath()
get_tables()
get_indexes()
fetch_columns()
normalise_value()
get_limit_clauses()
delete_records()
sql_concat()
sql_concat_join()
sql_bitxor()
Class: sqlite3_pdo_moodle_database - X-Ref
Experimental pdo database class| driver_installed() X-Ref |
| Detects if all needed PHP stuff installed. Note: can be used before connect() return: mixed true if ok, string if something |
| get_dbfamily() X-Ref |
| Returns database family type - describes SQL dialect Note: can be used before connect() return: string db family name (mysql, postgres, mssql, oracle, etc.) |
| get_dbtype() X-Ref |
| Returns more specific database driver type Note: can be used before connect() return: string db type mysqli, pgsql, oci, mssql, sqlsrv |
| configure_dbconnection() X-Ref |
| No description |
| create_database($dbhost, $dbuser, $dbpass, $dbname, array $dboptions=null) X-Ref |
| Attempt to create the database param: string $dbhost param: string $dbuser param: string $dbpass param: string $dbname return: bool success |
| get_dsn() X-Ref |
| Returns the driver-dependent DSN for PDO based on members stored by connect. Must be called after connect (or after $dbname, $dbhost, etc. members have been set). return: string driver-dependent DSN |
| get_dbfilepath() X-Ref |
| Returns the file path for the database file, computed from dbname and/or dboptions. If dboptions['file'] is set, then it is used (use :memory: for in memory database); else if dboptions['path'] is set, then the file will be <dboptions path>/<dbname>.sq3.php; else if dbhost is set and not localhost, then the file will be <dbhost>/<dbname>.sq3.php; else the file will be <moodle data path>/<dbname>.sq3.php return: string file path to the SQLite database; |
| get_tables($usecache=true) X-Ref |
| Return tables in database WITHOUT current prefix. param: bool $usecache if true, returns list of cached tables. return: array of table names in lowercase and without prefix |
| get_indexes($table) X-Ref |
| Return table indexes - everything lowercased param: string $table The table we want to get indexes from. return: array of arrays |
| fetch_columns(string $table) X-Ref |
| Returns detailed information about columns in table. param: string $table name return: array array of database_column_info objects indexed with column names |
| normalise_value($column, $value) X-Ref |
| Normalise values based in RDBMS dependencies (booleans, LOBs...) param: database_column_info $column column metadata corresponding with the value we are going to normalise param: mixed $value value we are going to normalise return: mixed the normalised value |
| get_limit_clauses($sql, $limitfrom=0, $limitnum=0) X-Ref |
| Returns the sql statement with clauses to append used to limit a recordset range. param: string $sql the SQL statement to limit. param: int $limitfrom return a subset of records, starting at this point (optional, required if $limitnum is set). param: int $limitnum return a subset comprising this many records (optional, required if $limitfrom is set). return: string the SQL statement with limiting clauses |
| delete_records($table, array $conditions=null) X-Ref |
| Delete the records from a table where all the given conditions met. If conditions not specified, table is truncated. param: string $table the table to delete from. param: array $conditions optional array $fieldname=>requestedvalue with AND in between return: returns success. |
| sql_concat() X-Ref |
| Returns the proper SQL to do CONCAT between the elements passed Can take many parameters param: string $element return: string |
| sql_concat_join($separator="' '", $elements=array() X-Ref |
| Returns the proper SQL to do CONCAT between the elements passed with a given separator param: string $separator param: array $elements return: string |
| sql_bitxor($int1, $int2) X-Ref |
| Returns the SQL text to be used in order to perform one bitwise XOR operation between 2 integers. param: integer int1 first integer in the operation param: integer int2 second integer in the operation return: string the piece of SQL code to be used in your statement. |
