Source for file sqlite.php
Documentation is available at sqlite.php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox, |
// | Stig. S. Bakken, Lukas Smith, Lorenzo Alberton |
// | All rights reserved. |
// +----------------------------------------------------------------------+
// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
// | API as well as database abstraction for PHP applications. |
// | This LICENSE is in the BSD license style. |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
// | Lukas Smith nor the names of his contributors may be used to endorse |
// | or promote products derived from this software without specific prior|
// | written permission. |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
// | POSSIBILITY OF SUCH DAMAGE. |
// +----------------------------------------------------------------------+
// | Authors: Lukas Smith <smith@pooteeweet.org> |
// | Lorenzo Alberton <l.alberton@quipo.it> |
// +----------------------------------------------------------------------+
// $Id: sqlite.php 327310 2012-08-27 15:16:18Z danielc $
require_once 'MDB2/Driver/Reverse/Common.php';
* MDB2 SQlite driver for the schema reverse engineering module
* @author Lukas Smith <smith@pooteeweet.org>
* Remove SQL comments from the field definition
function _removeComments ($sql) {
foreach ($lines as $k => $line) {
function _getTableColumns ($sql)
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
$start_pos = strpos($sql, '(');
$column_def = substr($sql, $start_pos+1 , $end_pos- $start_pos-1 );
// replace the decimal length-places-separator with a colon
$column_def = preg_replace('/(\d),(\d)/', '\1:\2', $column_def);
$column_def = $this->_removeComments ($column_def);
$column_sql = explode(',', $column_def);
$count = count($column_sql);
return $db->raiseError (MDB2_ERROR_UNSUPPORTED , null , null ,
'unexpected empty table column definition list', __FUNCTION__ );
$regexp = '/^\s*([^\s]+) +(CHAR|VARCHAR|VARCHAR2|TEXT|BOOLEAN|SMALLINT|INT|INTEGER|DECIMAL|TINYINT|BIGINT|DOUBLE|FLOAT|DATETIME|DATE|TIME|LONGTEXT|LONGBLOB)( ?\(([1-9][0-9]*)(:([1-9][0-9]*))?\))?( NULL| NOT NULL)?( UNSIGNED)?( NULL| NOT NULL)?( PRIMARY KEY)?( DEFAULT (\'[^\']*\'|[^ ]+))?( NULL| NOT NULL)?( PRIMARY KEY)?(\s*\-\-.*)?$/i';
$regexp2 = '/^\s*([^ ]+) +(PRIMARY|UNIQUE|CHECK)$/i';
for ($i=0 , $j=0; $i< $count; ++ $i) {
return $db->raiseError (MDB2_ERROR_UNSUPPORTED , null , null ,
'unexpected table column SQL definition: "'. $column_sql[$i]. '"', __FUNCTION__ );
$columns[$j]['name'] = trim($matches[1 ], implode('', $db->identifier_quoting ));
if (isset ($matches[4 ]) && strlen($matches[4 ])) {
$columns[$j]['length'] = $matches[4 ];
if (isset ($matches[6 ]) && strlen($matches[6 ])) {
$columns[$j]['decimal'] = $matches[6 ];
if (isset ($matches[8 ]) && strlen($matches[8 ])) {
$columns[$j]['unsigned'] = true;
if (isset ($matches[9 ]) && strlen($matches[9 ])) {
$columns[$j]['autoincrement'] = true;
if (isset ($matches[12 ]) && strlen($matches[12 ])) {
if (strlen($default) && $default[0 ]== "'") {
if ($default === 'NULL') {
$columns[$j]['default'] = $default;
$columns[$j]['default'] = null;
if (isset ($matches[7 ]) && strlen($matches[7 ])) {
$columns[$j]['notnull'] = ($matches[7 ] === ' NOT NULL');
} else if (isset ($matches[9 ]) && strlen($matches[9 ])) {
$columns[$j]['notnull'] = ($matches[9 ] === ' NOT NULL');
} else if (isset ($matches[13 ]) && strlen($matches[13 ])) {
$columns[$j]['notnull'] = ($matches[13 ] === ' NOT NULL');
// {{{ getTableFieldDefinition()
* Get the stucture of a field into an array
* @param string $table_name name of table that should be used in method
* @param string $field_name name of field that should be used in method
* @return mixed data array on success, a MDB2 error on failure.
* The returned array contains an array for each field definition,
* with (some of) these indices:
* [notnull] [nativetype] [length] [fixed] [default] [type] [mdb2type]
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
list ($schema, $table) = $this->splitTableSchema ($table_name);
$result = $db->loadModule ('Datatype', null , true );
if (MDB2 ::isError ($result)) {
$query = "SELECT sql FROM sqlite_master WHERE type='table' AND ";
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$query.= 'LOWER(name)='. $db->quote (strtolower($table), 'text');
$query.= 'name='. $db->quote ($table, 'text');
$sql = $db->queryOne ($query);
if (MDB2 ::isError ($sql)) {
$columns = $this->_getTableColumns ($sql);
foreach ($columns as $column) {
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
if ($db->options ['field_case'] == CASE_LOWER ) {
if ($field_name == $column['name']) {
$mapped_datatype = $db->datatype ->mapNativeDatatype ($column);
if (MDB2 ::isError ($mapped_datatype)) {
list ($types, $length, $unsigned, $fixed) = $mapped_datatype;
if (!empty ($column['notnull'])) {
$notnull = $column['notnull'];
$default = $column['default'];
if ((null === $default) && $notnull) {
if (!empty ($column['autoincrement'])) {
'nativetype' => preg_replace('/^([a-z]+)[^a-z].*/i', '\\1', $column['type'])
$definition[0 ]['length'] = $length;
if (null !== $unsigned) {
$definition[0 ]['unsigned'] = $unsigned;
$definition[0 ]['fixed'] = $fixed;
if ($default !== false ) {
$definition[0 ]['default'] = $default;
if ($autoincrement !== false ) {
$definition[0 ]['autoincrement'] = $autoincrement;
foreach ($types as $key => $type) {
$definition[$key] = $definition[0 ];
if ($type == 'clob' || $type == 'blob') {
unset ($definition[$key]['default']);
$definition[$key]['type'] = $type;
$definition[$key]['mdb2type'] = $type;
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table column', __FUNCTION__ );
// {{{ getTableIndexDefinition()
* Get the stucture of an index into an array
* @param string $table_name name of table that should be used in method
* @param string $index_name name of index that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
list ($schema, $table) = $this->splitTableSchema ($table_name);
$query = "SELECT sql FROM sqlite_master WHERE type='index' AND ";
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$query.= 'LOWER(name)=%s AND LOWER(tbl_name)=' . $db->quote (strtolower($table), 'text');
$query.= 'name=%s AND tbl_name=' . $db->quote ($table, 'text');
$query.= ' AND sql NOT NULL ORDER BY name';
$index_name_mdb2 = $db->getIndexName ($index_name);
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$qry = sprintf($query, $db->quote ($index_name_mdb2, 'text'));
$sql = $db->queryOne ($qry, 'text');
if (MDB2 ::isError ($sql) || empty ($sql)) {
// fallback to the given $index_name, without transformation
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$qry = sprintf($query, $db->quote ($index_name, 'text'));
$sql = $db->queryOne ($qry, 'text');
if (MDB2 ::isError ($sql)) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table index', __FUNCTION__ );
$start_pos = strpos($sql, '(');
$column_names = substr($sql, $start_pos+1 , $end_pos- $start_pos-1 );
$column_names = explode(',', $column_names);
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table index', __FUNCTION__ );
$count = count($column_names);
for ($i=0; $i< $count; ++ $i) {
$column_name = strtok($column_names[$i], ' ');
$definition['fields'][$column_name] = array (
if (!empty ($collation)) {
$definition['fields'][$column_name]['sorting'] =
($collation== 'ASC' ? 'ascending' : 'descending');
if (empty ($definition['fields'])) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing table index', __FUNCTION__ );
// {{{ getTableConstraintDefinition()
* Get the stucture of a constraint into an array
* @param string $table_name name of table that should be used in method
* @param string $constraint_name name of constraint that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
list ($schema, $table) = $this->splitTableSchema ($table_name);
$query = "SELECT sql FROM sqlite_master WHERE type='index' AND ";
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$query.= 'LOWER(name)=%s AND LOWER(tbl_name)=' . $db->quote (strtolower($table), 'text');
$query.= 'name=%s AND tbl_name=' . $db->quote ($table, 'text');
$query.= ' AND sql NOT NULL ORDER BY name';
$constraint_name_mdb2 = $db->getIndexName ($constraint_name);
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$qry = sprintf($query, $db->quote ($constraint_name_mdb2, 'text'));
$sql = $db->queryOne ($qry, 'text');
if (MDB2 ::isError ($sql) || empty ($sql)) {
// fallback to the given $index_name, without transformation
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$qry = sprintf($query, $db->quote ($constraint_name, 'text'));
$sql = $db->queryOne ($qry, 'text');
if (MDB2 ::isError ($sql)) {
//default values, eventually overridden
'initiallydeferred' => false ,
$query = "SELECT sql FROM sqlite_master WHERE type='table' AND ";
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$query.= 'LOWER(name)='. $db->quote (strtolower($table), 'text');
$query.= 'name='. $db->quote ($table, 'text');
$query.= " AND sql NOT NULL ORDER BY name";
$sql = $db->queryOne ($query, 'text');
if (MDB2 ::isError ($sql)) {
if ($constraint_name == 'primary') {
// search in table definition for PRIMARY KEYs
if (preg_match("/\bPRIMARY\s+KEY\b\s*\(([^)]+)/i", $sql, $tmp)) {
$definition['primary'] = true;
$definition['fields'] = array ();
$column_names = explode(',', $tmp[1 ]);
foreach ($column_names as $column_name) {
$definition['fields'][trim($column_name)] = array (
if (preg_match("/\"([^\"]+)\"[^\,\"]+\bPRIMARY\s+KEY\b[^\,\)]*/i", $sql, $tmp)) {
$definition['primary'] = true;
$definition['fields'] = array ();
$column_names = explode(',', $tmp[1 ]);
foreach ($column_names as $column_name) {
$definition['fields'][trim($column_name)] = array (
// search in table definition for FOREIGN KEYs
$pattern = "/\bCONSTRAINT\b\s+%s\s+
\bFOREIGN\s+KEY\b\s*\(([^\)]+)\)\s*
\bREFERENCES\b\s+([^\s]+)\s*\(([^\)]+)\)\s*
(?:\bMATCH\s*([^\s]+))?\s*
(?:\bON\s+UPDATE\s+([^\s,\)]+))?\s*
(?:\bON\s+DELETE\s+([^\s,\)]+))?\s*
$definition['foreign'] = true;
$definition['match'] = 'SIMPLE';
$definition['onupdate'] = 'NO ACTION';
$definition['ondelete'] = 'NO ACTION';
$definition['references']['table'] = $tmp[2 ];
$column_names = explode(',', $tmp[1 ]);
foreach ($column_names as $column_name) {
$definition['fields'][trim($column_name)] = array (
$referenced_cols = explode(',', $tmp[3 ]);
foreach ($referenced_cols as $column_name) {
$definition['references']['fields'][trim($column_name)] = array (
$definition['match'] = $tmp[4 ];
$definition['onupdate'] = $tmp[5 ];
$definition['ondelete'] = $tmp[6 ];
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
$constraint_name . ' is not an existing table constraint', __FUNCTION__ );
$start_pos = strpos($sql, '(');
$column_names = substr($sql, $start_pos+1 , $end_pos- $start_pos-1 );
$column_names = explode(',', $column_names);
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
$constraint_name . ' is not an existing table constraint', __FUNCTION__ );
$definition['unique'] = true;
$count = count($column_names);
for ($i=0; $i< $count; ++ $i) {
$column_name = strtok($column_names[$i]," ");
$definition['fields'][$column_name] = array (
if (!empty ($collation)) {
$definition['fields'][$column_name]['sorting'] =
($collation== 'ASC' ? 'ascending' : 'descending');
if (empty ($definition['fields'])) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
$constraint_name . ' is not an existing table constraint', __FUNCTION__ );
// {{{ getTriggerDefinition()
* Get the structure of a trigger into an array
* WARNING: this function is experimental and may change the returned value
* at any time until labelled as non-experimental
* @param string $trigger name of trigger that should be used in method
* @return mixed data array on success, a MDB2 error on failure
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
$query = "SELECT name as trigger_name,
if ($db->options ['portability'] & MDB2_PORTABILITY_FIX_CASE ) {
$query.= ' AND LOWER(name)='. $db->quote (strtolower($trigger), 'text');
$query.= ' AND name='. $db->quote ($trigger, 'text');
'trigger_name' => 'text',
'trigger_body' => 'text',
'trigger_type' => 'text',
'trigger_event' => 'text',
'trigger_comment' => 'text',
'trigger_enabled' => 'boolean',
$def = $db->queryRow ($query, $types, MDB2_FETCHMODE_ASSOC );
if (MDB2 ::isError ($def)) {
return $db->raiseError (MDB2_ERROR_NOT_FOUND , null , null ,
'it was not specified an existing trigger', __FUNCTION__ );
if (preg_match("/^create\s+(?:temp|temporary)?trigger\s+(?:if\s+not\s+exists\s+)?.*(before|after)?\s+(insert|update|delete)/Uims", $def['trigger_body'], $tmp)) {
* Returns information about a table
* @param string $result a string containing the name of a table
* @param int $mode a valid tableInfo mode
* @return array an associative array with the information requested.
* A MDB2_Error object on failure.
* @see MDB2_Driver_Common::tableInfo()
* @since Method available since Release 1.7.0
return parent ::tableInfo ($result, $mode);
$db = $this->getDBInstance ();
if (MDB2 ::isError ($db)) {
return $db->raiseError (MDB2_ERROR_NOT_CAPABLE , null , null ,
'This DBMS can not obtain tableInfo from result sets', __FUNCTION__ );
Documentation generated on Mon, 11 Mar 2019 15:51:27 -0400 by phpDocumentor 1.4.4. PEAR Logo Copyright © PHP Group 2004.
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