Zeile 8 | Zeile 8 |
---|
* */
|
* */
|
class DB_SQLite
| class DB_SQLite implements DB_Base
|
{ /** * The title of this layer.
| { /** * The title of this layer.
|
Zeile 30 | Zeile 30 |
---|
* @var string */ public $type;
|
* @var string */ public $type;
|
| /** * PDOStatement objects of performed queries. * * @var array */ public $query_objects = array();
|
/** * A count of the number of queries.
| /** * A count of the number of queries.
|
Zeile 58 | Zeile 65 |
---|
* @var resource */ public $link;
|
* @var resource */ public $link;
|
| /** * @var array */ public $connections = array();
|
/** * Explanation of a query.
| /** * Explanation of a query.
|
Zeile 75 | Zeile 87 |
---|
/** * The current table type in use (myisam/innodb)
|
/** * The current table type in use (myisam/innodb)
|
* * @var string */
| * * @var string */
|
public $table_type = "myisam";
|
public $table_type = "myisam";
|
|
|
/** * The table prefix used for simple select, update, insert and delete queries *
| /** * The table prefix used for simple select, update, insert and delete queries *
|
Zeile 89 | Zeile 101 |
---|
/** * The extension used to run the SQL database
|
/** * The extension used to run the SQL database
|
*
| *
|
* @var string */ public $engine = "pdo";
| * @var string */ public $engine = "pdo";
|
Zeile 116 | Zeile 128 |
---|
public $query_time = 0;
/**
|
public $query_time = 0;
/**
|
* Connect to the database server.
| * Our pdo implementation
|
*
|
*
|
* @param array Array of DBMS connection details. * @return resource The DB connection resource. Returns false on failure.
| * @var dbpdoEngine */ var $db;
/** * Connect to the database server. * * @param array $config Array of DBMS connection details. * @return bool Returns false on failure, otherwise true
|
*/ function connect($config) { get_execution_time();
|
*/ function connect($config) { get_execution_time();
|
require_once MYBB_ROOT."inc/db_pdo.php";
$this->db = new dbpdoEngine("sqlite:{$config['database']}");
| require_once MYBB_ROOT."inc/db_pdo.php";
try { $this->db = new dbpdoEngine("sqlite:{$config['database']}"); } catch (Exception $ex) { $this->error("[READ] Unable to open the SQLite database");
return false; }
|
$query_time = get_execution_time();
| $query_time = get_execution_time();
|
Zeile 136 | Zeile 161 |
---|
$this->connections[] = "[WRITE] {$config['database']} (Connected in ".format_time_duration($query_time).")";
if($this->db)
|
$this->connections[] = "[WRITE] {$config['database']} (Connected in ".format_time_duration($query_time).")";
if($this->db)
|
{
| {
|
$this->query('PRAGMA short_column_names = 1'); return true; }
| $this->query('PRAGMA short_column_names = 1'); return true; }
|
Zeile 149 | Zeile 174 |
---|
/** * Query the database. *
|
/** * Query the database. *
|
* @param string The query SQL. * @param boolean 1 if hide errors, 0 if not. * @return resource The query data.
| * @param string $string The query SQL. * @param boolean|int $hide_errors 1 if hide errors, 0 if not. * @param integer $write_query 1 if executes on master database, 0 if not. * @return PDOStatement The query data.
|
*/
|
*/
|
function query($string, $hide_errors=0)
| function query($string, $hide_errors=0, $write_query=0)
|
{
|
{
|
global $pagestarttime, $db, $mybb;
| global $mybb;
|
get_execution_time();
| get_execution_time();
|
Zeile 200 | Zeile 226 |
---|
$this->error($error['message'], $error['code']); } }
|
$this->error($error['message'], $error['code']); } }
|
| $this->query_objects[] = $query;
|
if($this->error_number($query) > 0 && !$hide_errors) { $this->error($string, $query); exit;
|
if($this->error_number($query) > 0 && !$hide_errors) { $this->error($string, $query); exit;
|
}
| }
|
$query_time = get_execution_time(); $this->query_time += $query_time; $this->query_count++;
|
$query_time = get_execution_time(); $this->query_time += $query_time; $this->query_count++;
|
|
|
if($mybb->debug_mode)
|
if($mybb->debug_mode)
|
{
| {
|
$this->explain_query($string, $query_time); }
if(strtolower(substr(ltrim($string), 0, 6)) == "create") { $query->closeCursor();
|
$this->explain_query($string, $query_time); }
if(strtolower(substr(ltrim($string), 0, 6)) == "create") { $query->closeCursor();
|
return;
| return null;
|
}
return $query;
| }
return $query;
|
Zeile 228 | Zeile 256 |
---|
/** * Explain a query on the database. *
|
/** * Explain a query on the database. *
|
* @param string The query SQL. * @param string The time it took to perform the query.
| * @param string $string The query SQL. * @param string $qtime The time it took to perform the query.
|
*/ function explain_query($string, $qtime) {
| */ function explain_query($string, $qtime) {
|
Zeile 238 | Zeile 266 |
---|
$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n". "<tr>\n". "<td colspan=\"8\" style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Select Query</strong></td>\n".
|
$this->explain .= "<table style=\"background-color: #666;\" width=\"95%\" cellpadding=\"4\" cellspacing=\"1\" align=\"center\">\n". "<tr>\n". "<td colspan=\"8\" style=\"background-color: #ccc;\"><strong>#".$this->query_count." - Select Query</strong></td>\n".
|
"</tr>\n". "<tr>\n".
| "</tr>\n". "<tr>\n".
|
"<td colspan=\"8\" style=\"background-color: #fefefe;\"><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n". "</tr>\n". "<tr>\n".
| "<td colspan=\"8\" style=\"background-color: #fefefe;\"><span style=\"font-family: Courier; font-size: 14px;\">".htmlspecialchars_uni($string)."</span></td>\n". "</tr>\n". "<tr>\n".
|
Zeile 271 | Zeile 299 |
---|
/** * Execute a write query on the database *
|
/** * Execute a write query on the database *
|
* @param string The query SQL. * @param boolean 1 if hide errors, 0 if not. * @return resource The query data.
| * @param string $query The query SQL. * @param boolean|int $hide_errors 1 if hide errors, 0 if not. * @return PDOStatement The query data.
|
*/ function write_query($query, $hide_errors=0) { return $this->query($query, $hide_errors);
|
*/ function write_query($query, $hide_errors=0) { return $this->query($query, $hide_errors);
|
}
| }
|
/** * Return a result array for a query. *
|
/** * Return a result array for a query. *
|
* @param resource The result data. * @param constant The type of array to return.
| * @param PDOStatement $query The result data. * @param int $resulttype One of PDO's constants: FETCH_ASSOC, FETCH_BOUND, FETCH_CLASS, FETCH_INTO, FETCH_LAZY, FETCH_NAMED, FETCH_NUM, FETCH_OBJ or FETCH_BOTH
|
* @return array The array of results. */
|
* @return array The array of results. */
|
function fetch_array($query)
| function fetch_array($query, $resulttype=PDO::FETCH_BOTH)
|
{
|
{
|
$array = $this->db->fetch_array($query);
| $array = $this->db->fetch_array($query, $resulttype);
|
return $array; }
/** * Return a specific field from a query. *
|
return $array; }
/** * Return a specific field from a query. *
|
* @param resource The query ID. * @param string The name of the field to return. * @param int The number of the row to fetch it from.
| * @param PDOStatement $query The query ID. * @param string $field The name of the field to return. * @param int|bool $row The number of the row to fetch it from. * @return mixed
|
*/ function fetch_field($query, $field, $row=false) {
| */ function fetch_field($query, $field, $row=false) {
|
Zeile 307 | Zeile 336 |
---|
$this->data_seek($query, $row); } $array = $this->fetch_array($query);
|
$this->data_seek($query, $row); } $array = $this->fetch_array($query);
|
return $array[$field];
| if($array !== null && $array !== false) { return $array[$field]; } return null; }
/** * Moves internal row pointer to the next row * * @param PDOStatement $query The query ID. * @param int $row The pointer to move the row to. */ function data_seek($query, $row) { $this->db->seek($query, $row);
|
}
|
}
|
|
|
/**
|
/**
|
* Moves internal row pointer to the next row
| * Closes cursors of registered queries.
|
*
|
*
|
* @param resource The query ID. * @param int The pointer to move the row to.
| |
*/
|
*/
|
function data_seek($query, $row)
| function close_cursors()
|
{
|
{
|
return $this->db->seek($query, $row);
| $result = true;
foreach($this->query_objects as $query) { if(!$query->closeCursor()) { $result = false; } }
return $result;
|
}
/** * Return the number of rows resulting from a query. *
|
}
/** * Return the number of rows resulting from a query. *
|
* @param resource The query data.
| * @param PDOStatement $query The query data.
|
* @return int The number of rows in the result. */ function num_rows($query)
| * @return int The number of rows in the result. */ function num_rows($query)
|
Zeile 335 | Zeile 387 |
---|
/** * Return the last id number of inserted data. *
|
/** * Return the last id number of inserted data. *
|
| * @param string $name
|
* @return int The id number. */ function insert_id($name="")
| * @return int The id number. */ function insert_id($name="")
|
Zeile 354 | Zeile 407 |
---|
/** * Return an error number. *
|
/** * Return an error number. *
|
| * @param PDOStatement $query
|
* @return int The error number of the current error.
|
* @return int The error number of the current error.
|
*/ function error_number($query="") { if(!$query) { $query = $this->db->last_query; }
$this->error_number = $this->db->error_number($query);
| */ function error_number($query=null) { if($query == null) { $query = $this->db->last_query; }
$this->error_number = $this->db->error_number($query);
|
return $this->error_number; }
|
return $this->error_number; }
|
|
|
/** * Return an error string. *
|
/** * Return an error string. *
|
| * @param PDOStatement $query
|
* @return string The explanation for the current error. */
|
* @return string The explanation for the current error. */
|
function error_string($query="")
| function error_string($query=null)
|
{ if($this->error_number != "") {
|
{ if($this->error_number != "") {
|
if(!$query)
| if($query == null)
|
{ $query = $this->db->last_query; }
|
{ $query = $this->db->last_query; }
|
|
|
$error_string = $this->db->error_string($query); $this->error_number = "";
return $error_string;
|
$error_string = $this->db->error_string($query); $this->error_number = "";
return $error_string;
|
}
| }
return '';
|
}
/** * Output a database error. *
|
}
/** * Output a database error. *
|
* @param string The string to present as an error.
| * @param string $string The string to present as an error. * @param PDOStatement $query * @param string $error * @param int $error_no
|
*/
|
*/
|
function error($string="", $query="", $error="", $error_no="")
| function error($string="", $query=null, $error="", $error_no=0)
|
{
|
{
|
$this->db->roll_back();
| |
if($this->error_reporting) {
|
if($this->error_reporting) {
|
if(!$query)
| if($query == null)
|
{ $query = $this->db->last_query; }
|
{ $query = $this->db->last_query; }
|
if($error_no == "")
| if($error_no == 0)
|
{ $error_no = $this->error_number($query); }
| { $error_no = $this->error_number($query); }
|
Zeile 442 | Zeile 500 |
---|
/** * Returns the number of affected rows in a query. *
|
/** * Returns the number of affected rows in a query. *
|
| * @param PDOStatement $query
|
* @return int The number of affected rows.
|
* @return int The number of affected rows.
|
*/ function affected_rows($query="") { if(!$query) { $query = $this->db->last_query; }
| */ function affected_rows($query=null) { if($query == null) { $query = $this->db->last_query; }
|
return $this->db->affected_rows($query); }
| return $this->db->affected_rows($query); }
|
Zeile 457 | Zeile 516 |
---|
/** * Return the number of fields. *
|
/** * Return the number of fields. *
|
* @param resource The query data.
| * @param PDOStatement $query The query data.
|
* @return int The number of fields. */ function num_fields($query)
| * @return int The number of fields. */ function num_fields($query)
|
Zeile 468 | Zeile 527 |
---|
}
return $this->db->num_fields($query);
|
}
return $this->db->num_fields($query);
|
}
/** * Lists all functions in the database.
| }
/** * Lists all tables in the database.
|
*
|
*
|
* @param string The database name. * @param string Prefix of the table (optional)
| * @param string $database The database name. * @param string $prefix Prefix of the table (optional)
|
* @return array The table list. */ function list_tables($database, $prefix='')
| * @return array The table list. */ function list_tables($database, $prefix='')
|
Zeile 492 | Zeile 551 |
---|
while($table = $this->fetch_array($query)) { $tables[] = $table['tbl_name'];
|
while($table = $this->fetch_array($query)) { $tables[] = $table['tbl_name'];
|
}
| }
|
$query->closeCursor(); return $tables; }
| $query->closeCursor(); return $tables; }
|
Zeile 500 | Zeile 559 |
---|
/** * Check if a table exists in a database. *
|
/** * Check if a table exists in a database. *
|
* @param string The table name.
| * @param string $table The table name.
|
* @return boolean True when exists, false if not. */ function table_exists($table)
| * @return boolean True when exists, false if not. */ function table_exists($table)
|
Zeile 512 | Zeile 571 |
---|
if($exists > 0) { return true;
|
if($exists > 0) { return true;
|
}
| }
|
else { return false;
| else { return false;
|
Zeile 522 | Zeile 581 |
---|
/** * Check if a field exists in a database. *
|
/** * Check if a field exists in a database. *
|
* @param string The field name. * @param string The table name.
| * @param string $field The field name. * @param string $table The table name.
|
* @return boolean True when exists, false if not. */ function field_exists($field, $table) { $query = $this->query("PRAGMA table_info('{$this->table_prefix}{$table}')");
|
* @return boolean True when exists, false if not. */ function field_exists($field, $table) { $query = $this->query("PRAGMA table_info('{$this->table_prefix}{$table}')");
|
|
|
$exists = 0;
while($row = $this->fetch_array($query))
|
$exists = 0;
while($row = $this->fetch_array($query))
|
{
| {
|
if($row['name'] == $field) { ++$exists; }
|
if($row['name'] == $field) { ++$exists; }
|
}
| }
|
$query->closeCursor();
if($exists > 0)
|
$query->closeCursor();
if($exists > 0)
|
{
| {
|
return true;
|
return true;
|
} else { return false; }
| } else { return false; }
|
}
/** * Add a shutdown query. *
|
}
/** * Add a shutdown query. *
|
* @param resource The query data. * @param string An optional name for the query.
| * @param PDOStatement $query The query data. * @param string $name An optional name for the query.
|
*/
|
*/
|
function shutdown_query($query, $name=0)
| function shutdown_query($query, $name="")
|
{ global $shutdown_queries; if($name)
|
{ global $shutdown_queries; if($name)
|
{
| {
|
$shutdown_queries[$name] = $query; } else { $shutdown_queries[] = $query;
|
$shutdown_queries[$name] = $query; } else { $shutdown_queries[] = $query;
|
}
| }
|
}
/** * Performs a simple select query. *
|
}
/** * Performs a simple select query. *
|
* @param string The table name to be queried. * @param string Comma delimetered list of fields to be selected. * @param string SQL formatted list of conditions to be matched. * @param array List of options: group by, order by, order direction, limit, limit start. * @return resource The query data.
| * @param string $table The table name to be queried. * @param string $fields Comma delimetered list of fields to be selected. * @param string $conditions SQL formatted list of conditions to be matched. * @param array $options List of options: group by, order by, order direction, limit, limit start. * @return PDOStatement The query data.
|
*/ function simple_select($table, $fields="*", $conditions="", $options=array()) { $query = "SELECT ".$fields." FROM ".$this->table_prefix.$table;
|
*/ function simple_select($table, $fields="*", $conditions="", $options=array()) { $query = "SELECT ".$fields." FROM ".$this->table_prefix.$table;
|
|
|
if($conditions != "") { $query .= " WHERE ".$conditions;
|
if($conditions != "") { $query .= " WHERE ".$conditions;
|
}
| }
|
if(isset($options['group_by'])) { $query .= " GROUP BY ".$options['group_by'];
| if(isset($options['group_by'])) { $query .= " GROUP BY ".$options['group_by'];
|
Zeile 619 | Zeile 678 |
---|
/** * Build an insert query from an array. *
|
/** * Build an insert query from an array. *
|
* @param string The table name to perform the query on. * @param array An array of fields and their values. * @return int The insert ID if available
| * @param string $table The table name to perform the query on. * @param array $array An array of fields and their values. * @return int|bool The insert ID if available or false if an error is found
|
*/ function insert_query($table, $array) {
| */ function insert_query($table, $array) {
|
Zeile 645 | Zeile 704 |
---|
} else {
|
} else {
|
$array[$field] = "'{$value}'";
| $array[$field] = $this->quote_val($value);
|
} }
| } }
|
Zeile 663 | Zeile 722 |
---|
/** * Build one query for multiple inserts from a multidimensional array. *
|
/** * Build one query for multiple inserts from a multidimensional array. *
|
* @param string The table name to perform the query on. * @param array An array of inserts. * @return int The insert ID if available
| * @param string $table The table name to perform the query on. * @param array $array An array of inserts. * @return void
|
*/ function insert_query_multiple($table, $array) {
| */ function insert_query_multiple($table, $array) {
|
Zeile 673 | Zeile 732 |
---|
if(!is_array($array)) {
|
if(!is_array($array)) {
|
return false;
| return;
|
} // Field names $fields = array_keys($array[0]);
| } // Field names $fields = array_keys($array[0]);
|
Zeile 695 | Zeile 754 |
---|
} else {
|
} else {
|
$values[$field] = "'{$value}'";
| $values[$field] = $this->quote_val($value);
|
} } $insert_rows[] = "(".implode(",", $values).")";
| } } $insert_rows[] = "(".implode(",", $values).")";
|
Zeile 713 | Zeile 772 |
---|
/** * Build an update query from an array. *
|
/** * Build an update query from an array. *
|
* @param string The table name to perform the query on. * @param array An array of fields and their values. * @param string An optional where clause for the query. * @param string An optional limit clause for the query. * @param boolean An option to quote incoming values of the array. * @return resource The query data.
| * @param string $table The table name to perform the query on. * @param array $array An array of fields and their values. * @param string $where An optional where clause for the query. * @param string $limit An optional limit clause for the query. * @param boolean $no_quote An option to quote incoming values of the array. * @return PDOStatement The query data.
|
*/ function update_query($table, $array, $where="", $limit="", $no_quote=false) {
| */ function update_query($table, $array, $where="", $limit="", $no_quote=false) {
|
Zeile 751 | Zeile 810 |
---|
} else {
|
} else {
|
$query .= $comma.$field."={$quote}".$value."{$quote}";
| $quoted_value = $this->quote_val($value, $quote);
$query .= $comma.$field."={$quoted_value}";
|
} $comma = ', ';
|
} $comma = ', ';
|
}
| }
|
if(!empty($where)) {
| if(!empty($where)) {
|
Zeile 762 | Zeile 823 |
---|
}
$query = $this->query("UPDATE {$this->table_prefix}$table SET $query");
|
}
$query = $this->query("UPDATE {$this->table_prefix}$table SET $query");
|
$query->closeCursor();
| $query->closeCursor();
|
return $query;
|
return $query;
|
| }
/** * @param int|string $value * @param string $quote * * @return int|string */ private function quote_val($value, $quote="'") { if(is_int($value)) { $quoted = $value; } else { $quoted = $quote . $value . $quote; }
return $quoted;
|
}
/** * Build a delete query. *
|
}
/** * Build a delete query. *
|
* @param string The table name to perform the query on. * @param string An optional where clause for the query. * @param string An optional limit clause for the query. * @return resource The query data.
| * @param string $table The table name to perform the query on. * @param string $where An optional where clause for the query. * @param string $limit An optional limit clause for the query. * @return PDOStatement The query data.
|
*/ function delete_query($table, $where="", $limit="") {
| */ function delete_query($table, $where="", $limit="") {
|
Zeile 785 | Zeile 866 |
---|
$query = $this->query("DELETE FROM {$this->table_prefix}$table $query"); $query->closeCursor(); return $query;
|
$query = $this->query("DELETE FROM {$this->table_prefix}$table $query"); $query->closeCursor(); return $query;
|
}
/**
| }
/**
|
* Escape a string *
|
* Escape a string *
|
* @param string The string to be escaped.
| * @param string $string The string to be escaped.
|
* @return string The escaped string. */ function escape_string($string) { $string = $this->db->escape_string($string); return $string;
|
* @return string The escaped string. */ function escape_string($string) { $string = $this->db->escape_string($string); return $string;
|
}
/**
| }
/**
|
* Serves no purposes except compatibility *
|
* Serves no purposes except compatibility *
|
| * @param PDOStatement $query * @return boolean Returns true on success, false on failure
|
*/ function free_result($query)
|
*/ function free_result($query)
|
{ return; }
/**
| { return true; }
/**
|
* Escape a string used within a like command. *
|
* Escape a string used within a like command. *
|
* @param string The string to be escaped.
| * @param string $string The string to be escaped.
|
* @return string The escaped string. */ function escape_string_like($string) {
|
* @return string The escaped string. */ function escape_string_like($string) {
|
return $this->escape_string(str_replace(array('%', '_') , array('\\%' , '\\_') , $string));
| return $this->escape_string(str_replace(array('\\', '%', '_') , array('\\\\', '\\%' , '\\_') , $string));
|
}
/** * Gets the current version of SQLLite.
|
}
/** * Gets the current version of SQLLite.
|
*
| *
|
* @return string Version of MySQL. */ function get_version()
| * @return string Version of MySQL. */ function get_version()
|
Zeile 831 | Zeile 914 |
---|
return $this->version; } $this->version = $this->db->get_attribute("ATTR_SERVER_VERSION");
|
return $this->version; } $this->version = $this->db->get_attribute("ATTR_SERVER_VERSION");
|
|
|
return $this->version; }
/** * Optimizes a specific table. *
|
return $this->version; }
/** * Optimizes a specific table. *
|
* @param string The name of the table to be optimized.
| * @param string $table The name of the table to be optimized.
|
*/ function optimize_table($table) {
|
*/ function optimize_table($table) {
|
$query = $this->query("VACUUM ".$this->table_prefix.$table.""); $query->closeCursor();
| // SQLite doesn't support table level optimization. // Using `VACUUM [main | $db_name]` may also be blocked by any opened query cursor, hence generating an error.
|
}
/** * Analyzes a specific table. *
|
}
/** * Analyzes a specific table. *
|
* @param string The name of the table to be analyzed.
| * @param string $table The name of the table to be analyzed.
|
*/ function analyze_table($table) {
| */ function analyze_table($table) {
|
Zeile 860 | Zeile 943 |
---|
/** * Show the "create table" command for a specific table. *
|
/** * Show the "create table" command for a specific table. *
|
* @param string The name of the table. * @return string The MySQL command to create the specified table.
| * @param string $table The name of the table. * @return string The SQLite command to create the specified table.
|
*/ function show_create_table($table) {
| */ function show_create_table($table) {
|
Zeile 880 | Zeile 963 |
---|
/** * Show the "show fields from" command for a specific table. *
|
/** * Show the "show fields from" command for a specific table. *
|
* @param string The name of the table. * @return string Field info for that table
| * @param string $table The name of the table. * @return array Field info for that table
|
*/ function show_fields_from($table) {
|
*/ function show_fields_from($table) {
|
$old_tbl_prefix = $this->table_prefix; $this->set_table_prefix(""); $query = $this->simple_select("sqlite_master", "sql", "type = 'table' AND name = '{$old_tbl_prefix}{$table}'"); $this->set_table_prefix($old_tbl_prefix); $table = trim(preg_replace('#CREATE\s+TABLE\s+"?'.$this->table_prefix.$table.'"?#i', '', $this->fetch_field($query, "sql"))); $query->closeCursor();
preg_match('#\((.*)\)#s', $table, $matches);
| $query = $this->write_query("PRAGMA TABLE_INFO('".$this->table_prefix.$table."')");
|
$field_info = array();
|
$field_info = array();
|
$table_cols = explode(',', trim($matches[1])); foreach($table_cols as $declaration)
| while($field = $this->fetch_array($query))
|
{
|
{
|
$entities = preg_split('#\s+#', trim($declaration)); $column_name = preg_replace('/"?([^"]+)"?/', '\1', $entities[0]);
| if(!empty($field['pk'])) { $field['_key'] = 'PRI'; $field['_extra'] = 'auto_increment'; } else { $field['_key'] = ''; $field['_extra'] = ''; }
// SQLite allows NULLs in most PRIMARY KEY columns due to a bug in early versions, even in an INTEGER PRIMARY KEY column, read https://sqlite.org/lang_createtable.html for details. We won't fix this for consistency among other database engines. $field['_nullable'] = $field['notnull'] ? 'NO' : 'YES';
|
|
|
$field_info[] = array('Extra' => $entities[1], 'Field' => $column_name);
| $field_info[] = array( 'Field' => $field['name'], 'Type' => $field['type'], 'Null' => $field['_nullable'], 'Key' => $field['_key'], 'Default' => $field['dflt_value'], 'Extra' => $field['_extra'], );
|
}
|
}
|
| $query->closeCursor();
|
return $field_info; }
/** * Returns whether or not the table contains a fulltext index. *
|
return $field_info; }
/** * Returns whether or not the table contains a fulltext index. *
|
* @param string The name of the table. * @param string Optionally specify the name of the index.
| * @param string $table The name of the table. * @param string $index Optionally specify the name of the index.
|
* @return boolean True or false if the table has a fulltext index or not. */ function is_fulltext($table, $index="")
| * @return boolean True or false if the table has a fulltext index or not. */ function is_fulltext($table, $index="")
|
Zeile 922 | Zeile 1014 |
---|
/** * Returns whether or not this database engine supports fulltext indexing. *
|
/** * Returns whether or not this database engine supports fulltext indexing. *
|
* @param string The table to be checked.
| * @param string $table The table to be checked.
|
* @return boolean True or false if supported or not. */
| * @return boolean True or false if supported or not. */
|
Zeile 934 | Zeile 1026 |
---|
/** * Returns whether or not this database engine supports boolean fulltext matching. *
|
/** * Returns whether or not this database engine supports boolean fulltext matching. *
|
* @param string The table to be checked.
| * @param string $table The table to be checked.
|
* @return boolean True or false if supported or not. */ function supports_fulltext_boolean($table)
| * @return boolean True or false if supported or not. */ function supports_fulltext_boolean($table)
|
Zeile 945 | Zeile 1037 |
---|
/** * Creates a fulltext index on the specified column in the specified table with optional index name. *
|
/** * Creates a fulltext index on the specified column in the specified table with optional index name. *
|
* @param string The name of the table. * @param string Name of the column to be indexed. * @param string The index name, optional.
| * @param string $table The name of the table. * @param string $column Name of the column to be indexed. * @param string $name The index name, optional. * @return bool
|
*/ function create_fulltext_index($table, $column, $name="") {
| */ function create_fulltext_index($table, $column, $name="") {
|
Zeile 957 | Zeile 1050 |
---|
/** * Drop an index with the specified name from the specified table *
|
/** * Drop an index with the specified name from the specified table *
|
* @param string The name of the table. * @param string The name of the index.
| * @param string $table The name of the table. * @param string $name The name of the index.
|
*/ function drop_index($table, $name) {
| */ function drop_index($table, $name) {
|
Zeile 969 | Zeile 1062 |
---|
/** * Checks to see if an index exists on a specified table *
|
/** * Checks to see if an index exists on a specified table *
|
* @param string The name of the table. * @param string The name of the index.
| * @param string $table The name of the table. * @param string $index The name of the index. * @return bool Returns whether index exists
|
*/ function index_exists($table, $index) {
| */ function index_exists($table, $index) {
|
Zeile 980 | Zeile 1074 |
---|
/** * Drop an table with the specified table *
|
/** * Drop an table with the specified table *
|
* @param string The name of the table. * @param boolean hard drop - no checking * @param boolean use table prefix
| * @param string $table The name of the table. * @param boolean $hard hard drop - no checking * @param boolean $table_prefix use table prefix
|
*/ function drop_table($table, $hard=false, $table_prefix=true) {
| */ function drop_table($table, $hard=false, $table_prefix=true) {
|
Zeile 995 | Zeile 1089 |
---|
$table_prefix = $this->table_prefix; }
|
$table_prefix = $this->table_prefix; }
|
| $table_prefix_bak = $this->table_prefix; $this->table_prefix = '';
|
if($hard == false) {
|
if($hard == false) {
|
if($this->table_exists($table))
| if($this->table_exists($table_prefix.$table))
|
{ $query = $this->query('DROP TABLE '.$table_prefix.$table); }
| { $query = $this->query('DROP TABLE '.$table_prefix.$table); }
|
Zeile 1006 | Zeile 1102 |
---|
{ $query = $this->query('DROP TABLE '.$table_prefix.$table); }
|
{ $query = $this->query('DROP TABLE '.$table_prefix.$table); }
|
| $this->table_prefix = $table_prefix_bak;
|
if(isset($query)) {
| if(isset($query)) {
|
Zeile 1016 | Zeile 1113 |
---|
/** * Renames a table *
|
/** * Renames a table *
|
* @param string The old table name * @param string the new table name * @param boolean use table prefix
| * @param string $old_table The old table name * @param string $new_table the new table name * @param boolean $table_prefix use table prefix * @return PDOStatement
|
*/ function rename_table($old_table, $new_table, $table_prefix=true) {
| */ function rename_table($old_table, $new_table, $table_prefix=true) {
|
Zeile 1039 | Zeile 1137 |
---|
/** * Replace contents of table with values *
|
/** * Replace contents of table with values *
|
* @param string The table * @param array The replacements * @param mixed The default field(s) * @param boolean Whether or not to return an insert id. True by default
| * @param string $table The table * @param array $replacements The replacements * @param string|array $default_field The default field(s) * @param boolean $insert_id Whether or not to return an insert id. True by default * @return int|PDOStatement|bool Returns either the insert id (if a new row is inserted), the query resource (if a row is updated) or false on failure
|
*/ function replace_query($table, $replacements=array(), $default_field="", $insert_id=true) {
| */ function replace_query($table, $replacements=array(), $default_field="", $insert_id=true) {
|
Zeile 1065 | Zeile 1164 |
---|
} else {
|
} else {
|
$values .= $comma."'".$value."'";
| $values .= $comma.$this->quote_val($value);
|
}
$comma = ',';
| }
$comma = ',';
|
Zeile 1121 | Zeile 1220 |
---|
} else {
|
} else {
|
return $this->insert_query($table, $replacements, $insert_id);
| return $this->insert_query($table, $replacements);
|
} } }
| } } }
|
Zeile 1129 | Zeile 1228 |
---|
/** * Sets the table prefix used by the simple select, insert, update and delete functions *
|
/** * Sets the table prefix used by the simple select, insert, update and delete functions *
|
* @param string The new table prefix
| * @param string $prefix The new table prefix
|
*/ function set_table_prefix($prefix) {
| */ function set_table_prefix($prefix) {
|
Zeile 1139 | Zeile 1238 |
---|
/** * Fetched the total size of all mysql tables or a specific table *
|
/** * Fetched the total size of all mysql tables or a specific table *
|
* @param string The table (optional) (ignored)
| * @param string $table The table (optional) (ignored)
|
* @return integer the total size of all mysql tables or a specific table */ function fetch_size($table='')
| * @return integer the total size of all mysql tables or a specific table */ function fetch_size($table='')
|
Zeile 1157 | Zeile 1256 |
---|
/** * Perform an "Alter Table" query in SQLite < 3.2.0 - Code taken from http://code.jenseng.com/db/ *
|
/** * Perform an "Alter Table" query in SQLite < 3.2.0 - Code taken from http://code.jenseng.com/db/ *
|
* @param string The table (optional) * @return integer the total size of all mysql tables or a specific table
| * @param string $table The table (optional) * @param string $alterdefs * @param string $fullquery * @return bool True on success, false on failure
|
*/ function alter_table_parse($table, $alterdefs, $fullquery="") {
| */ function alter_table_parse($table, $alterdefs, $fullquery="") {
|
Zeile 1182 | Zeile 1283 |
---|
$tmpname = 't'.TIME_NOW; $origsql = trim(preg_replace("/[\s]+/", " ", str_replace(",", ", ", preg_replace("/[\(]/","( ", $row['sql'], 1)))); $createtemptableSQL = 'CREATE TEMPORARY '.substr(trim(preg_replace("'".$table."'", $tmpname, $origsql, 1)), 6);
|
$tmpname = 't'.TIME_NOW; $origsql = trim(preg_replace("/[\s]+/", " ", str_replace(",", ", ", preg_replace("/[\(]/","( ", $row['sql'], 1)))); $createtemptableSQL = 'CREATE TEMPORARY '.substr(trim(preg_replace("'".$table."'", $tmpname, $origsql, 1)), 6);
|
$createindexsql = array(); $i = 0;
| |
$defs = preg_split("/[,]+/", $alterdefs, -1, PREG_SPLIT_NO_EMPTY); $prevword = $table; $oldcols = preg_split("/[,]+/", substr(trim($createtemptableSQL), strpos(trim($createtemptableSQL), '(')+1), -1, PREG_SPLIT_NO_EMPTY);
| $defs = preg_split("/[,]+/", $alterdefs, -1, PREG_SPLIT_NO_EMPTY); $prevword = $table; $oldcols = preg_split("/[,]+/", substr(trim($createtemptableSQL), strpos(trim($createtemptableSQL), '(')+1), -1, PREG_SPLIT_NO_EMPTY);
|
Zeile 1337 | Zeile 1436 |
---|
$this->error($fullquery, 'no such table: '.$table); return false; }
|
$this->error($fullquery, 'no such table: '.$table); return false; }
|
return true; } }
/**
| } return true; }
/**
|
* Drops a column *
|
* Drops a column *
|
* @param string The table * @param string The column name
| * @param string $table The table * @param string $column The column name * @return PDOStatement
|
*/ function drop_column($table, $column)
|
*/ function drop_column($table, $column)
|
{
| {
|
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} DROP {$column}");
|
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} DROP {$column}");
|
}
/**
| }
/**
|
* Adds a column *
|
* Adds a column *
|
* @param string The table * @param string The column name * @param string the new column definition
| * @param string $table The table * @param string $column The column name * @param string $definition the new column definition * @return PDOStatement
|
*/ function add_column($table, $column, $definition)
|
*/ function add_column($table, $column, $definition)
|
{
| {
|
$query = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD {$column} {$definition}"); $query->closeCursor(); return $query;
|
$query = $this->write_query("ALTER TABLE {$this->table_prefix}{$table} ADD {$column} {$definition}"); $query->closeCursor(); return $query;
|
}
| }
|
/** * Modifies a column
|
/** * Modifies a column
|
* * @param string The table * @param string The column name * @param string the new column definition */ function modify_column($table, $column, $new_definition)
| * * @param string $table The table * @param string $column The column name * @param string $new_definition the new column definition * @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false) * @param boolean|string $new_default_value The new default value, or false to drop the attribute * @return bool Returns true if all queries are executed successfully or false if one of them failed */ function modify_column($table, $column, $new_definition, $new_not_null=false, $new_default_value=false)
|
{ // We use a rename query as both need to duplicate the table etc...
|
{ // We use a rename query as both need to duplicate the table etc...
|
$this->rename_column($table, $column, $column, $new_definition);
| return $this->rename_column($table, $column, $column, $new_definition, $new_not_null, $new_default_value);
|
}
/** * Renames a column *
|
}
/** * Renames a column *
|
* @param string The table * @param string The old column name * @param string the new column name * @param string the new column definition
| * @param string $table The table * @param string $old_column The old column name * @param string $new_column the new column name * @param string $new_definition the new column definition * @param boolean|string $new_not_null Whether to "drop" or "set" the NOT NULL attribute (no change if false) * @param boolean|string $new_default_value The new default value, or false to drop the attribute * @return bool Returns true if all queries are executed successfully
|
*/
|
*/
|
function rename_column($table, $old_column, $new_column, $new_definition)
| function rename_column($table, $old_column, $new_column, $new_definition, $new_not_null=false, $new_default_value=false)
|
{
|
{
|
| if($new_not_null !== false) { if(strtolower($new_not_null) == "set") { $not_null = "NOT NULL"; } else { $not_null = "NULL"; } } else { $not_null = ''; }
if($new_default_value !== false) { $default = "DEFAULT ".$new_default_value; } else { $default = ''; }
|
// This will trigger the "alter_table_parse" function which will copy the table and rename the column
|
// This will trigger the "alter_table_parse" function which will copy the table and rename the column
|
return $this->write_query("ALTER TABLE {$this->table_prefix}{$table} CHANGE {$old_column} {$new_column} {$new_definition}");
| return (bool) $this->write_query("ALTER TABLE {$this->table_prefix}{$table} CHANGE {$old_column} {$new_column} {$new_definition} {$not_null} {$default}");
|
}
/** * Fetch a list of database character sets this DBMS supports *
|
}
/** * Fetch a list of database character sets this DBMS supports *
|
* @return array Array of supported character sets with array key being the name, array value being display name. False if unsupported
| * @return array|bool Array of supported character sets with array key being the name, array value being display name. False if unsupported
|
*/ function fetch_db_charsets() {
| */ function fetch_db_charsets() {
|
Zeile 1406 | Zeile 1538 |
---|
/** * Fetch a database collation for a particular database character set *
|
/** * Fetch a database collation for a particular database character set *
|
* @param string The database character set * @return string The matching database collation, false if unsupported
| * @param string $charset The database character set * @return string|bool The matching database collation, false if unsupported
|
*/ function fetch_charset_collation($charset) {
| */ function fetch_charset_collation($charset) {
|
Zeile 1437 | Zeile 1569 |
---|
/** * Binary database fields require special attention. *
|
/** * Binary database fields require special attention. *
|
* @param string Binary value
| * @param string $string Binary value
|
* @return string Encoded binary value */ function escape_binary($string)
| * @return string Encoded binary value */ function escape_binary($string)
|
Zeile 1448 | Zeile 1580 |
---|
/** * Unescape binary data. *
|
/** * Unescape binary data. *
|
* @param string Binary value
| * @param string $string Binary value
|
* @return string Encoded binary value */ function unescape_binary($string)
| * @return string Encoded binary value */ function unescape_binary($string)
|