Current File : /var/www/crm/include/database/MysqlManager.php
<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
* SugarCRM Community Edition is a customer relationship management program developed by
* SugarCRM, Inc. Copyright (C) 2004-2012 SugarCRM Inc.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License version 3 as published by the
* Free Software Foundation with the addition of the following permission added
* to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
* IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
* OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License along with
* this program; if not, see http://www.gnu.org/licenses or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
* SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License version 3.
*
* In accordance with Section 7(b) of the GNU Affero General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* SugarCRM" logo. If the display of the logo is not reasonably feasible for
* technical reasons, the Appropriate Legal Notices must display the words
* "Powered by SugarCRM".
********************************************************************************/
/*********************************************************************************
* Description: This file handles the Data base functionality for the application.
* It acts as the DB abstraction layer for the application. It depends on helper classes
* which generate the necessary SQL. This sql is then passed to PEAR DB classes.
* The helper class is chosen in DBManagerFactory, which is driven by 'db_type' in 'dbconfig' under config.php.
*
* All the functions in this class will work with any bean which implements the meta interface.
* The passed bean is passed to helper class which uses these functions to generate correct sql.
*
* The meta interface has the following functions:
* getTableName() Returns table name of the object.
* getFieldDefinitions() Returns a collection of field definitions in order.
* getFieldDefintion(name) Return field definition for the field.
* getFieldValue(name) Returns the value of the field identified by name.
* If the field is not set, the function will return boolean FALSE.
* getPrimaryFieldDefinition() Returns the field definition for primary key
*
* The field definition is an array with the following keys:
*
* name This represents name of the field. This is a required field.
* type This represents type of the field. This is a required field and valid values are:
* � int
* � long
* � varchar
* � text
* � date
* � datetime
* � double
* � float
* � uint
* � ulong
* � time
* � short
* � enum
* length This is used only when the type is varchar and denotes the length of the string.
* The max value is 255.
* enumvals This is a list of valid values for an enum separated by "|".
* It is used only if the type is �enum�;
* required This field dictates whether it is a required value.
* The default value is �FALSE�.
* isPrimary This field identifies the primary key of the table.
* If none of the fields have this flag set to �TRUE�,
* the first field definition is assume to be the primary key.
* Default value for this field is �FALSE�.
* default This field sets the default value for the field definition.
*
*
* Portions created by SugarCRM are Copyright (C) SugarCRM, Inc.
* All Rights Reserved.
* Contributor(s): ______________________________________..
********************************************************************************/
/**
* MySQL manager implementation for mysql extension
*/
class MysqlManager extends DBManager
{
/**
* @see DBManager::$dbType
*/
public $dbType = 'mysql';
public $variant = 'mysql';
public $dbName = 'MySQL';
public $label = 'LBL_MYSQL';
protected $maxNameLengths = array(
'table' => 64,
'column' => 64,
'index' => 64,
'alias' => 256
);
protected $type_map = array(
'int' => 'int',
'double' => 'double',
'float' => 'float',
'uint' => 'int unsigned',
'ulong' => 'bigint unsigned',
'long' => 'bigint',
'short' => 'smallint',
'varchar' => 'varchar',
'text' => 'text',
'longtext' => 'longtext',
'date' => 'date',
'enum' => 'varchar',
'relate' => 'varchar',
'multienum'=> 'text',
'html' => 'text',
'longhtml' => 'longtext',
'datetime' => 'datetime',
'datetimecombo' => 'datetime',
'time' => 'time',
'bool' => 'bool',
'tinyint' => 'tinyint',
'char' => 'char',
'blob' => 'blob',
'longblob' => 'longblob',
'currency' => 'decimal(26,6)',
'decimal' => 'decimal',
'decimal2' => 'decimal',
'id' => 'char(36)',
'url' => 'varchar',
'encrypt' => 'varchar',
'file' => 'varchar',
'decimal_tpl' => 'decimal(%d, %d)',
);
protected $capabilities = array(
"affected_rows" => true,
"select_rows" => true,
"inline_keys" => true,
"create_user" => true,
"fulltext" => true,
"collation" => true,
"create_db" => true,
"disable_keys" => true,
);
/**
* Parses and runs queries
*
* @param string $sql SQL Statement to execute
* @param bool $dieOnError True if we want to call die if the query returns errors
* @param string $msg Message to log if error occurs
* @param bool $suppress Flag to suppress all error output unless in debug logging mode.
* @param bool $keepResult True if we want to push this result into the $lastResult array.
* @return resource result set
*/
public function query($sql, $dieOnError = false, $msg = '', $suppress = false, $keepResult = false)
{
if(is_array($sql)) {
return $this->queryArray($sql, $dieOnError, $msg, $suppress);
}
parent::countQuery($sql);
$GLOBALS['log']->info('Query:' . $sql);
$this->checkConnection();
$this->query_time = microtime(true);
$this->lastsql = $sql;
$result = $suppress?@mysql_query($sql, $this->database):mysql_query($sql, $this->database);
$this->query_time = microtime(true) - $this->query_time;
$GLOBALS['log']->info('Query Execution Time:'.$this->query_time);
if($keepResult)
$this->lastResult = $result;
$this->checkError($msg.' Query Failed:' . $sql . '::', $dieOnError);
return $result;
}
/**
* Returns the number of rows affected by the last query
* @param $result
* @return int
*/
public function getAffectedRowCount($result)
{
return mysql_affected_rows($this->getDatabase());
}
/**
* Returns the number of rows returned by the result
*
* This function can't be reliably implemented on most DB, do not use it.
* @abstract
* @deprecated
* @param resource $result
* @return int
*/
public function getRowCount($result)
{
return mysql_num_rows($result);
}
/**
* Disconnects from the database
*
* Also handles any cleanup needed
*/
public function disconnect()
{
$GLOBALS['log']->debug('Calling MySQL::disconnect()');
if(!empty($this->database)){
$this->freeResult();
mysql_close($this->database);
$this->database = null;
}
}
/**
* @see DBManager::freeDbResult()
*/
protected function freeDbResult($dbResult)
{
if(!empty($dbResult))
mysql_free_result($dbResult);
}
/**
* @abstract
* Check if query has LIMIT clause
* Relevant for now only for Mysql
* @param string $sql
* @return bool
*/
protected function hasLimit($sql)
{
return stripos($sql, " limit ") !== false;
}
/**
* @see DBManager::limitQuery()
*/
public function limitQuery($sql, $start, $count, $dieOnError = false, $msg = '', $execute = true)
{
$start = (int)$start;
$count = (int)$count;
if ($start < 0)
$start = 0;
$GLOBALS['log']->debug('Limit Query:' . $sql. ' Start: ' .$start . ' count: ' . $count);
$sql = "$sql LIMIT $start,$count";
$this->lastsql = $sql;
if(!empty($GLOBALS['sugar_config']['check_query'])){
$this->checkQuery($sql);
}
if(!$execute) {
return $sql;
}
return $this->query($sql, $dieOnError, $msg);
}
/**
* @see DBManager::checkQuery()
*/
protected function checkQuery($sql)
{
$result = $this->query('EXPLAIN ' . $sql);
$badQuery = array();
while ($row = $this->fetchByAssoc($result)) {
if (empty($row['table']))
continue;
$badQuery[$row['table']] = '';
if (strtoupper($row['type']) == 'ALL')
$badQuery[$row['table']] .= ' Full Table Scan;';
if (empty($row['key']))
$badQuery[$row['table']] .= ' No Index Key Used;';
if (!empty($row['Extra']) && substr_count($row['Extra'], 'Using filesort') > 0)
$badQuery[$row['table']] .= ' Using FileSort;';
if (!empty($row['Extra']) && substr_count($row['Extra'], 'Using temporary') > 0)
$badQuery[$row['table']] .= ' Using Temporary Table;';
}
if ( empty($badQuery) )
return true;
foreach($badQuery as $table=>$data ){
if(!empty($data)){
$warning = ' Table:' . $table . ' Data:' . $data;
if(!empty($GLOBALS['sugar_config']['check_query_log'])){
$GLOBALS['log']->fatal($sql);
$GLOBALS['log']->fatal('CHECK QUERY:' .$warning);
}
else{
$GLOBALS['log']->warn('CHECK QUERY:' .$warning);
}
}
}
return false;
}
/**
* @see DBManager::get_columns()
*/
public function get_columns($tablename)
{
//find all unique indexes and primary keys.
$result = $this->query("DESCRIBE $tablename");
$columns = array();
while (($row=$this->fetchByAssoc($result)) !=null) {
$name = strtolower($row['Field']);
$columns[$name]['name']=$name;
$matches = array();
preg_match_all('/(\w+)(?:\(([0-9]+,?[0-9]*)\)|)( unsigned)?/i', $row['Type'], $matches);
$columns[$name]['type']=strtolower($matches[1][0]);
if ( isset($matches[2][0]) && in_array(strtolower($matches[1][0]),array('varchar','char','varchar2','int','decimal','float')) )
$columns[$name]['len']=strtolower($matches[2][0]);
if ( stristr($row['Extra'],'auto_increment') )
$columns[$name]['auto_increment'] = '1';
if ($row['Null'] == 'NO' && !stristr($row['Key'],'PRI'))
$columns[$name]['required'] = 'true';
if (!empty($row['Default']) )
$columns[$name]['default'] = $row['Default'];
}
return $columns;
}
/**
* @see DBManager::getFieldsArray()
*/
public function getFieldsArray($result, $make_lower_case=false)
{
$field_array = array();
if(empty($result))
return 0;
$fields = mysql_num_fields($result);
for ($i=0; $i < $fields; $i++) {
$meta = mysql_fetch_field($result, $i);
if (!$meta)
return array();
if($make_lower_case == true)
$meta->name = strtolower($meta->name);
$field_array[] = $meta->name;
}
return $field_array;
}
/**
* @see DBManager::fetchRow()
*/
public function fetchRow($result)
{
if (empty($result)) return false;
return mysql_fetch_assoc($result);
}
/**
* @see DBManager::getTablesArray()
*/
public function getTablesArray()
{
$this->log->debug('Fetching table list');
if ($this->getDatabase()) {
$tables = array();
$r = $this->query('SHOW TABLES');
if (!empty($r)) {
while ($a = $this->fetchByAssoc($r)) {
$row = array_values($a);
$tables[]=$row[0];
}
return $tables;
}
}
return false; // no database available
}
/**
* @see DBManager::version()
*/
public function version()
{
return $this->getOne("SELECT version() version");
}
/**
* @see DBManager::tableExists()
*/
public function tableExists($tableName)
{
$this->log->info("tableExists: $tableName");
if ($this->getDatabase()) {
$result = $this->query("SHOW TABLES LIKE ".$this->quoted($tableName));
if(empty($result)) return false;
$row = $this->fetchByAssoc($result);
return !empty($row);
}
return false;
}
/**
* Get tables like expression
* @param $like string
* @return array
*/
public function tablesLike($like)
{
if ($this->getDatabase()) {
$tables = array();
$r = $this->query('SHOW TABLES LIKE '.$this->quoted($like));
if (!empty($r)) {
while ($a = $this->fetchByAssoc($r)) {
$row = array_values($a);
$tables[]=$row[0];
}
return $tables;
}
}
return false;
}
/**
* @see DBManager::quote()
*/
public function quote($string)
{
if(is_array($string)) {
return $this->arrayQuote($string);
}
return mysql_real_escape_string($this->quoteInternal($string), $this->getDatabase());
}
/**
* @see DBManager::connect()
*/
public function connect(array $configOptions = null, $dieOnError = false)
{
global $sugar_config;
if(is_null($configOptions))
$configOptions = $sugar_config['dbconfig'];
if ($this->getOption('persistent')) {
$this->database = @mysql_pconnect(
$configOptions['db_host_name'],
$configOptions['db_user_name'],
$configOptions['db_password']
);
}
if (!$this->database) {
$this->database = mysql_connect(
$configOptions['db_host_name'],
$configOptions['db_user_name'],
$configOptions['db_password']
);
if(empty($this->database)) {
$GLOBALS['log']->fatal("Could not connect to server ".$configOptions['db_host_name']." as ".$configOptions['db_user_name'].":".mysql_error());
if($dieOnError) {
if(isset($GLOBALS['app_strings']['ERR_NO_DB'])) {
sugar_die($GLOBALS['app_strings']['ERR_NO_DB']);
} else {
sugar_die("Could not connect to the database. Please refer to sugarcrm.log for details.");
}
} else {
return false;
}
}
// Do not pass connection information because we have not connected yet
if($this->database && $this->getOption('persistent')){
$_SESSION['administrator_error'] = "<b>Severe Performance Degradation: Persistent Database Connections "
. "not working. Please set \$sugar_config['dbconfigoption']['persistent'] to false "
. "in your config.php file</b>";
}
}
if(!empty($configOptions['db_name']) && !@mysql_select_db($configOptions['db_name'])) {
$GLOBALS['log']->fatal( "Unable to select database {$configOptions['db_name']}: " . mysql_error($this->database));
if($dieOnError) {
sugar_die($GLOBALS['app_strings']['ERR_NO_DB']);
} else {
return false;
}
}
// cn: using direct calls to prevent this from spamming the Logs
mysql_query("SET CHARACTER SET utf8", $this->database);
$names = "SET NAMES 'utf8'";
$collation = $this->getOption('collation');
if(!empty($collation)) {
$names .= " COLLATE '$collation'";
}
mysql_query($names, $this->database);
if(!$this->checkError('Could Not Connect:', $dieOnError))
$GLOBALS['log']->info("connected to db");
$this->connectOptions = $configOptions;
$GLOBALS['log']->info("Connect:".$this->database);
return true;
}
/**
* @see DBManager::repairTableParams()
*
* For MySQL, we can write the ALTER TABLE statement all in one line, which speeds things
* up quite a bit. So here, we'll parse the returned SQL into a single ALTER TABLE command.
*/
public function repairTableParams($tablename, $fielddefs, $indices, $execute = true, $engine = null)
{
$sql = parent::repairTableParams($tablename,$fielddefs,$indices,false,$engine);
if ( $sql == '' )
return '';
if ( stristr($sql,'create table') )
{
if ($execute) {
$msg = "Error creating table: ".$tablename. ":";
$this->query($sql,true,$msg);
}
return $sql;
}
// first, parse out all the comments
$match = array();
preg_match_all('!/\*.*?\*/!is', $sql, $match);
$commentBlocks = $match[0];
$sql = preg_replace('!/\*.*?\*/!is','', $sql);
// now, we should only have alter table statements
// let's replace the 'alter table name' part with a comma
$sql = preg_replace("!alter table $tablename!is",', ', $sql);
// re-add it at the beginning
$sql = substr_replace($sql,'',strpos($sql,','),1);
$sql = str_replace(";","",$sql);
$sql = str_replace("\n","",$sql);
$sql = "ALTER TABLE $tablename $sql";
if ( $execute )
$this->query($sql,'Error with MySQL repair table');
// and re-add the comments at the beginning
$sql = implode("\n",$commentBlocks) . "\n". $sql . "\n";
return $sql;
}
/**
* @see DBManager::convert()
*/
public function convert($string, $type, array $additional_parameters = array())
{
$all_parameters = $additional_parameters;
if(is_array($string)) {
$all_parameters = array_merge($string, $all_parameters);
} elseif (!is_null($string)) {
array_unshift($all_parameters, $string);
}
$all_strings = implode(',', $all_parameters);
switch (strtolower($type)) {
case 'today':
return "CURDATE()";
case 'left':
return "LEFT($all_strings)";
case 'date_format':
if(empty($additional_parameters)) {
return "DATE_FORMAT($string,'%Y-%m-%d')";
} else {
$format = $additional_parameters[0];
if($format[0] != "'") {
$format = $this->quoted($format);
}
return "DATE_FORMAT($string,$format)";
}
case 'ifnull':
if(empty($additional_parameters) && !strstr($all_strings, ",")) {
$all_strings .= ",''";
}
return "IFNULL($all_strings)";
case 'concat':
return "CONCAT($all_strings)";
case 'quarter':
return "QUARTER($string)";
case "length":
return "LENGTH($string)";
case 'month':
return "MONTH($string)";
case 'add_date':
return "DATE_ADD($string, INTERVAL {$additional_parameters[0]} {$additional_parameters[1]})";
case 'add_time':
return "DATE_ADD($string, INTERVAL + CONCAT({$additional_parameters[0]}, ':', {$additional_parameters[1]}) HOUR_MINUTE)";
}
return $string;
}
/**
* (non-PHPdoc)
* @see DBManager::fromConvert()
*/
public function fromConvert($string, $type)
{
return $string;
}
/**
* Returns the name of the engine to use or null if we are to use the default
*
* @param object $bean SugarBean instance
* @return string
*/
protected function getEngine($bean)
{
global $dictionary;
$engine = null;
if (isset($dictionary[$bean->getObjectName()]['engine'])) {
$engine = $dictionary[$bean->getObjectName()]['engine'];
}
return $engine;
}
/**
* Returns true if the engine given is enabled in the backend
*
* @param string $engine
* @return bool
*/
protected function isEngineEnabled($engine)
{
if(!is_string($engine)) return false;
$engine = strtoupper($engine);
$r = $this->query("SHOW ENGINES");
while ( $row = $this->fetchByAssoc($r) )
if ( strtoupper($row['Engine']) == $engine )
return ($row['Support']=='YES' || $row['Support']=='DEFAULT');
return false;
}
/**
* @see DBManager::createTableSQL()
*/
public function createTableSQL(SugarBean $bean)
{
$tablename = $bean->getTableName();
$fieldDefs = $bean->getFieldDefinitions();
$indices = $bean->getIndices();
$engine = $this->getEngine($bean);
return $this->createTableSQLParams($tablename, $fieldDefs, $indices, $engine);
}
/**
* Generates sql for create table statement for a bean.
*
* @param string $tablename
* @param array $fieldDefs
* @param array $indices
* @param string $engine optional, MySQL engine to use
* @return string SQL Create Table statement
*/
public function createTableSQLParams($tablename, $fieldDefs, $indices, $engine = null)
{
if ( empty($engine) && isset($fieldDefs['engine']))
$engine = $fieldDefs['engine'];
if ( !$this->isEngineEnabled($engine) )
$engine = '';
$columns = $this->columnSQLRep($fieldDefs, false, $tablename);
if (empty($columns))
return false;
$keys = $this->keysSQL($indices);
if (!empty($keys))
$keys = ",$keys";
// cn: bug 9873 - module tables do not get created in utf8 with assoc collation
$collation = $this->getOption('collation');
if(empty($collation)) {
$collation = 'utf8_general_ci';
}
$sql = "CREATE TABLE $tablename ($columns $keys) CHARACTER SET utf8 COLLATE $collation";
if (!empty($engine))
$sql.= " ENGINE=$engine";
return $sql;
}
/**
* Does this type represent text (i.e., non-varchar) value?
* @param string $type
*/
public function isTextType($type)
{
$type = $this->getColumnType(strtolower($type));
return in_array($type, array('blob','text','longblob', 'longtext'));
}
/**
* @see DBManager::oneColumnSQLRep()
*/
protected function oneColumnSQLRep($fieldDef, $ignoreRequired = false, $table = '', $return_as_array = false)
{
// always return as array for post-processing
$ref = parent::oneColumnSQLRep($fieldDef, $ignoreRequired, $table, true);
if ( $ref['colType'] == 'int' && !empty($fieldDef['len']) ) {
$ref['colType'] .= "(".$fieldDef['len'].")";
}
// bug 22338 - don't set a default value on text or blob fields
if ( isset($ref['default']) &&
in_array($ref['colBaseType'], array('text', 'blob', 'longtext', 'longblob')))
$ref['default'] = '';
if ( $return_as_array )
return $ref;
else
return "{$ref['name']} {$ref['colType']} {$ref['default']} {$ref['required']} {$ref['auto_increment']}";
}
/**
* @see DBManager::changeColumnSQL()
*/
protected function changeColumnSQL($tablename, $fieldDefs, $action, $ignoreRequired = false)
{
$columns = array();
if ($this->isFieldArray($fieldDefs)){
foreach ($fieldDefs as $def){
if ($action == 'drop')
$columns[] = $def['name'];
else
$columns[] = $this->oneColumnSQLRep($def, $ignoreRequired);
}
} else {
if ($action == 'drop')
$columns[] = $fieldDefs['name'];
else
$columns[] = $this->oneColumnSQLRep($fieldDefs);
}
return "ALTER TABLE $tablename $action COLUMN ".implode(",$action column ", $columns);
}
/**
* Generates SQL for key specification inside CREATE TABLE statement
*
* The passes array is an array of field definitions or a field definition
* itself. The keys generated will be either primary, foreign, unique, index
* or none at all depending on the setting of the "key" parameter of a field definition
*
* @param array $indices
* @param bool $alter_table
* @param string $alter_action
* @return string SQL Statement
*/
protected function keysSQL($indices, $alter_table = false, $alter_action = '')
{
// check if the passed value is an array of fields.
// if not, convert it into an array
if (!$this->isFieldArray($indices))
$indices[] = $indices;
$columns = array();
foreach ($indices as $index) {
if(!empty($index['db']) && $index['db'] != $this->dbType)
continue;
if (isset($index['source']) && $index['source'] != 'db')
continue;
$type = $index['type'];
$name = $index['name'];
if (is_array($index['fields']))
$fields = implode(", ", $index['fields']);
else
$fields = $index['fields'];
switch ($type) {
case 'unique':
$columns[] = " UNIQUE $name ($fields)";
break;
case 'primary':
$columns[] = " PRIMARY KEY ($fields)";
break;
case 'index':
case 'foreign':
case 'clustered':
case 'alternate_key':
/**
* @todo here it is assumed that the primary key of the foreign
* table will always be named 'id'. It must be noted though
* that this can easily be fixed by referring to db dictionary
* to find the correct primary field name
*/
if ( $alter_table )
$columns[] = " INDEX $name ($fields)";
else
$columns[] = " KEY $name ($fields)";
break;
case 'fulltext':
if ($this->full_text_indexing_installed())
$columns[] = " FULLTEXT ($fields)";
else
$GLOBALS['log']->debug('MYISAM engine is not available/enabled, full-text indexes will be skipped. Skipping:',$name);
break;
}
}
$columns = implode(", $alter_action ", $columns);
if(!empty($alter_action)){
$columns = $alter_action . ' '. $columns;
}
return $columns;
}
/**
* @see DBManager::setAutoIncrement()
*/
protected function setAutoIncrement($table, $field_name)
{
return "auto_increment";
}
/**
* Sets the next auto-increment value of a column to a specific value.
*
* @param string $table tablename
* @param string $field_name
*/
public function setAutoIncrementStart($table, $field_name, $start_value)
{
$start_value = (int)$start_value;
return $this->query( "ALTER TABLE $table AUTO_INCREMENT = $start_value;");
}
/**
* Returns the next value for an auto increment
*
* @param string $table tablename
* @param string $field_name
* @return string
*/
public function getAutoIncrement($table, $field_name)
{
$result = $this->query("SHOW TABLE STATUS LIKE '$table'");
$row = $this->fetchByAssoc($result);
if (!empty($row['Auto_increment']))
return $row['Auto_increment'];
return "";
}
/**
* @see DBManager::get_indices()
*/
public function get_indices($tablename)
{
//find all unique indexes and primary keys.
$result = $this->query("SHOW INDEX FROM $tablename");
$indices = array();
while (($row=$this->fetchByAssoc($result)) !=null) {
$index_type='index';
if ($row['Key_name'] =='PRIMARY') {
$index_type='primary';
}
elseif ( $row['Non_unique'] == '0' ) {
$index_type='unique';
}
$name = strtolower($row['Key_name']);
$indices[$name]['name']=$name;
$indices[$name]['type']=$index_type;
$indices[$name]['fields'][]=strtolower($row['Column_name']);
}
return $indices;
}
/**
* @see DBManager::add_drop_constraint()
*/
public function add_drop_constraint($table, $definition, $drop = false)
{
$type = $definition['type'];
$fields = implode(',',$definition['fields']);
$name = $definition['name'];
$sql = '';
switch ($type){
// generic indices
case 'index':
case 'alternate_key':
case 'clustered':
if ($drop)
$sql = "ALTER TABLE {$table} DROP INDEX {$name} ";
else
$sql = "ALTER TABLE {$table} ADD INDEX {$name} ({$fields})";
break;
// constraints as indices
case 'unique':
if ($drop)
$sql = "ALTER TABLE {$table} DROP INDEX $name";
else
$sql = "ALTER TABLE {$table} ADD CONSTRAINT UNIQUE {$name} ({$fields})";
break;
case 'primary':
if ($drop)
$sql = "ALTER TABLE {$table} DROP PRIMARY KEY";
else
$sql = "ALTER TABLE {$table} ADD CONSTRAINT PRIMARY KEY ({$fields})";
break;
case 'foreign':
if ($drop)
$sql = "ALTER TABLE {$table} DROP FOREIGN KEY ({$fields})";
else
$sql = "ALTER TABLE {$table} ADD CONSTRAINT FOREIGN KEY {$name} ({$fields}) REFERENCES {$definition['foreignTable']}({$definition['foreignField']})";
break;
}
return $sql;
}
/**
* Runs a query and returns a single row
*
* @param string $sql SQL Statement to execute
* @param bool $dieOnError True if we want to call die if the query returns errors
* @param string $msg Message to log if error occurs
* @param bool $suppress Message to log if error occurs
* @return array single row from the query
*/
public function fetchOne($sql, $dieOnError = false, $msg = '', $suppress = false)
{
if(stripos($sql, ' LIMIT ') === false) {
// little optimization to just fetch one row
$sql .= " LIMIT 0,1";
}
return parent::fetchOne($sql, $dieOnError, $msg, $suppress);
}
/**
* @see DBManager::full_text_indexing_installed()
*/
public function full_text_indexing_installed($dbname = null)
{
return $this->isEngineEnabled('MyISAM');
}
/**
* @see DBManager::massageFieldDef()
*/
public function massageFieldDef(&$fieldDef, $tablename)
{
parent::massageFieldDef($fieldDef,$tablename);
if ( isset($fieldDef['default']) &&
($fieldDef['dbType'] == 'text'
|| $fieldDef['dbType'] == 'blob'
|| $fieldDef['dbType'] == 'longtext'
|| $fieldDef['dbType'] == 'longblob' ))
unset($fieldDef['default']);
if ($fieldDef['dbType'] == 'uint')
$fieldDef['len'] = '10';
if ($fieldDef['dbType'] == 'ulong')
$fieldDef['len'] = '20';
if ($fieldDef['dbType'] == 'bool')
$fieldDef['type'] = 'tinyint';
if ($fieldDef['dbType'] == 'bool' && empty($fieldDef['default']) )
$fieldDef['default'] = '0';
if (($fieldDef['dbType'] == 'varchar' || $fieldDef['dbType'] == 'enum') && empty($fieldDef['len']) )
$fieldDef['len'] = '255';
if ($fieldDef['dbType'] == 'uint')
$fieldDef['len'] = '10';
if ($fieldDef['dbType'] == 'int' && empty($fieldDef['len']) )
$fieldDef['len'] = '11';
if($fieldDef['dbType'] == 'decimal') {
if(isset($fieldDef['len'])) {
if(strstr($fieldDef['len'], ",") === false) {
$fieldDef['len'] .= ",0";
}
} else {
$fieldDef['len'] = '10,0';
}
}
}
/**
* Generates SQL for dropping a table.
*
* @param string $name table name
* @return string SQL statement
*/
public function dropTableNameSQL($name)
{
return "DROP TABLE IF EXISTS ".$name;
}
public function dropIndexes($tablename, $indexes, $execute = true)
{
$sql = array();
foreach ($indexes as $index) {
$name =$index['name'];
if($execute) {
unset(self::$index_descriptions[$tablename][$name]);
}
if ($index['type'] == 'primary') {
$sql[] = 'DROP PRIMARY KEY';
} else {
$sql[] = "DROP INDEX $name";
}
}
if (!empty($sql)) {
$sql = "ALTER TABLE $tablename ".join(",", $sql);
if($execute)
$this->query($sql);
} else {
$sql = '';
}
return $sql;
}
/**
* List of available collation settings
* @return string
*/
public function getDefaultCollation()
{
return "utf8_general_ci";
}
/**
* List of available collation settings
* @return array
*/
public function getCollationList()
{
$q = "SHOW COLLATION LIKE 'utf8%'";
$r = $this->query($q);
$res = array();
while($a = $this->fetchByAssoc($r)) {
$res[] = $a['Collation'];
}
return $res;
}
/**
* (non-PHPdoc)
* @see DBManager::renameColumnSQL()
*/
public function renameColumnSQL($tablename, $column, $newname)
{
$field = $this->describeField($column, $tablename);
$field['name'] = $newname;
return "ALTER TABLE $tablename CHANGE COLUMN $column ".$this->oneColumnSQLRep($field);
}
public function emptyValue($type)
{
$ctype = $this->getColumnType($type);
if($ctype == "datetime") {
return $this->convert($this->quoted("0000-00-00 00:00:00"), "datetime");
}
if($ctype == "date") {
return $this->convert($this->quoted("0000-00-00"), "date");
}
if($ctype == "time") {
return $this->convert($this->quoted("00:00:00"), "time");
}
return parent::emptyValue($type);
}
/**
* (non-PHPdoc)
* @see DBManager::lastDbError()
*/
public function lastDbError()
{
if($this->database) {
if(mysql_errno($this->database)) {
return "MySQL error ".mysql_errno($this->database).": ".mysql_error($this->database);
}
} else {
$err = mysql_error();
if($err) {
return $err;
}
}
return false;
}
/**
* Quote MySQL search term
* @param unknown_type $term
*/
protected function quoteTerm($term)
{
if(strpos($term, ' ') !== false) {
return '"'.$term.'"';
}
return $term;
}
/**
* Generate fulltext query from set of terms
* @param string $fields Field to search against
* @param array $terms Search terms that may be or not be in the result
* @param array $must_terms Search terms that have to be in the result
* @param array $exclude_terms Search terms that have to be not in the result
*/
public function getFulltextQuery($field, $terms, $must_terms = array(), $exclude_terms = array())
{
$condition = array();
foreach($terms as $term) {
$condition[] = $this->quoteTerm($term);
}
foreach($must_terms as $term) {
$condition[] = "+".$this->quoteTerm($term);
}
foreach($exclude_terms as $term) {
$condition[] = "-".$this->quoteTerm($term);
}
$condition = $this->quoted(join(" ",$condition));
return "MATCH($field) AGAINST($condition IN BOOLEAN MODE)";
}
/**
* Get list of all defined charsets
* @return array
*/
protected function getCharsetInfo()
{
$charsets = array();
$res = $this->query("show variables like 'character\\_set\\_%'");
while($row = $this->fetchByAssoc($res)) {
$charsets[$row['Variable_name']] = $row['Value'];
}
return $charsets;
}
public function getDbInfo()
{
$charsets = $this->getCharsetInfo();
$charset_str = array();
foreach($charsets as $name => $value) {
$charset_str[] = "$name = $value";
}
return array(
"MySQL Version" => @mysql_get_client_info(),
"MySQL Host Info" => @mysql_get_host_info($this->database),
"MySQL Server Info" => @mysql_get_server_info($this->database),
"MySQL Client Encoding" => @mysql_client_encoding($this->database),
"MySQL Character Set Settings" => join(", ", $charset_str),
);
}
public function validateQuery($query)
{
$res = $this->query("EXPLAIN $query");
return !empty($res);
}
protected function makeTempTableCopy($table)
{
$this->log->debug("creating temp table for [$table]...");
$result = $this->query("SHOW CREATE TABLE {$table}");
if(empty($result)) {
return false;
}
$row = $this->fetchByAssoc($result);
if(empty($row) || empty($row['Create Table'])) {
return false;
}
$create = $row['Create Table'];
// rewrite DDL with _temp name
$tempTableQuery = str_replace("CREATE TABLE `{$table}`", "CREATE TABLE `{$table}__uw_temp`", $create);
$r2 = $this->query($tempTableQuery);
if(empty($r2)) {
return false;
}
// get sample data into the temp table to test for data/constraint conflicts
$this->log->debug('inserting temp dataset...');
$q3 = "INSERT INTO `{$table}__uw_temp` SELECT * FROM `{$table}` LIMIT 10";
$this->query($q3, false, "Preflight Failed for: {$q3}");
return true;
}
/**
* Tests an ALTER TABLE query
* @param string table The table name to get DDL
* @param string query The query to test.
* @return string Non-empty if error found
*/
protected function verifyAlterTable($table, $query)
{
$this->log->debug("verifying ALTER TABLE");
// Skipping ALTER TABLE [table] DROP PRIMARY KEY because primary keys are not being copied
// over to the temp tables
if(strpos(strtoupper($query), 'DROP PRIMARY KEY') !== false) {
$this->log->debug("Skipping DROP PRIMARY KEY");
return '';
}
if(!$this->makeTempTableCopy($table)) {
return 'Could not create temp table copy';
}
// test the query on the test table
$this->log->debug('testing query: ['.$query.']');
$tempTableTestQuery = str_replace("ALTER TABLE `{$table}`", "ALTER TABLE `{$table}__uw_temp`", $query);
if (strpos($tempTableTestQuery, 'idx') === false) {
if(strpos($tempTableTestQuery, '__uw_temp') === false) {
return 'Could not use a temp table to test query!';
}
$this->log->debug('testing query on temp table: ['.$tempTableTestQuery.']');
$this->query($tempTableTestQuery, false, "Preflight Failed for: {$query}");
} else {
// test insertion of an index on a table
$tempTableTestQuery_idx = str_replace("ADD INDEX `idx_", "ADD INDEX `temp_idx_", $tempTableTestQuery);
$this->log->debug('testing query on temp table: ['.$tempTableTestQuery_idx.']');
$this->query($tempTableTestQuery_idx, false, "Preflight Failed for: {$query}");
}
$mysqlError = $this->getL();
if(!empty($mysqlError)) {
return $mysqlError;
}
$this->dropTableName("{$table}__uw_temp");
return '';
}
protected function verifyGenericReplaceQuery($querytype, $table, $query)
{
$this->log->debug("verifying $querytype statement");
if(!$this->makeTempTableCopy($table)) {
return 'Could not create temp table copy';
}
// test the query on the test table
$this->log->debug('testing query: ['.$query.']');
$tempTableTestQuery = str_replace("$querytype `{$table}`", "$querytype `{$table}__uw_temp`", $query);
if(strpos($tempTableTestQuery, '__uw_temp') === false) {
return 'Could not use a temp table to test query!';
}
$this->query($tempTableTestQuery, false, "Preflight Failed for: {$query}");
$error = $this->lastError(); // empty on no-errors
$this->dropTableName("{$table}__uw_temp"); // just in case
return $error;
}
/**
* Tests a DROP TABLE query
* @param string table The table name to get DDL
* @param string query The query to test.
* @return string Non-empty if error found
*/
public function verifyDropTable($table, $query)
{
return $this->verifyGenericReplaceQuery("DROP TABLE", $table, $query);
}
/**
* Tests an INSERT INTO query
* @param string table The table name to get DDL
* @param string query The query to test.
* @return string Non-empty if error found
*/
public function verifyInsertInto($table, $query)
{
return $this->verifyGenericReplaceQuery("INSERT INTO", $table, $query);
}
/**
* Tests an UPDATE query
* @param string table The table name to get DDL
* @param string query The query to test.
* @return string Non-empty if error found
*/
public function verifyUpdate($table, $query)
{
return $this->verifyGenericReplaceQuery("UPDATE", $table, $query);
}
/**
* Tests an DELETE FROM query
* @param string table The table name to get DDL
* @param string query The query to test.
* @return string Non-empty if error found
*/
public function verifyDeleteFrom($table, $query)
{
return $this->verifyGenericReplaceQuery("DELETE FROM", $table, $query);
}
/**
* Check if certain database exists
* @param string $dbname
*/
public function dbExists($dbname)
{
$db = $this->getOne("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = ".$this->quoted($dbname));
return !empty($db);
}
/**
* Select database
* @param string $dbname
*/
protected function selectDb($dbname)
{
return mysql_select_db($dbname);
}
/**
* Check if certain DB user exists
* @param string $username
*/
public function userExists($username)
{
$db = $this->getOne("SELECT DATABASE()");
if(!$this->selectDb("mysql")) {
return false;
}
$user = $this->getOne("select count(*) from user where user = ".$this->quoted($username));
if(!$this->selectDb($db)) {
$this->checkError("Cannot select database $db", true);
}
return !empty($user);
}
/**
* Create DB user
* @param string $database_name
* @param string $host_name
* @param string $user
* @param string $password
*/
public function createDbUser($database_name, $host_name, $user, $password)
{
$qpassword = $this->quote($password);
$this->query("GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, DROP, INDEX
ON `$database_name`.*
TO \"$user\"@\"$host_name\"
IDENTIFIED BY '{$qpassword}';", true);
$this->query("SET PASSWORD FOR \"{$user}\"@\"{$host_name}\" = password('{$qpassword}');", true);
if($host_name != 'localhost') {
$this->createDbUser($database_name, "localhost", $user, $password);
}
}
/**
* Create a database
* @param string $dbname
*/
public function createDatabase($dbname)
{
$this->query("CREATE DATABASE `$dbname` CHARACTER SET utf8 COLLATE utf8_general_ci", true);
}
public function preInstall()
{
$db->query("ALTER DATABASE `{$setup_db_database_name}` DEFAULT CHARACTER SET utf8", true);
$db->query("ALTER DATABASE `{$setup_db_database_name}` DEFAULT COLLATE utf8_general_ci", true);
}
/**
* Drop a database
* @param string $dbname
*/
public function dropDatabase($dbname)
{
return $this->query("DROP DATABASE IF EXISTS `$dbname`", true);
}
/**
* Check if this driver can be used
* @return bool
*/
public function valid()
{
return function_exists("mysql_connect");
}
/**
* Check DB version
* @see DBManager::canInstall()
*/
public function canInstall()
{
$db_version = $this->version();
if(empty($db_version)) {
return array('ERR_DB_VERSION_FAILURE');
}
if(version_compare($db_version, '4.1.2') < 0) {
return array('ERR_DB_MYSQL_VERSION', $db_version);
}
return true;
}
public function installConfig()
{
return array(
'LBL_DBCONFIG_MSG3' => array(
"setup_db_database_name" => array("label" => 'LBL_DBCONF_DB_NAME', "required" => true),
),
'LBL_DBCONFIG_MSG2' => array(
"setup_db_host_name" => array("label" => 'LBL_DBCONF_HOST_NAME', "required" => true),
),
'LBL_DBCONF_TITLE_USER_INFO' => array(),
'LBL_DBCONFIG_B_MSG1' => array(
"setup_db_admin_user_name" => array("label" => 'LBL_DBCONF_DB_ADMIN_USER', "required" => true),
"setup_db_admin_password" => array("label" => 'LBL_DBCONF_DB_ADMIN_PASSWORD', "type" => "password"),
)
);
}
/**
* Disable keys on the table
* @abstract
* @param string $tableName
*/
public function disableKeys($tableName)
{
return $this->query('ALTER TABLE '.$tableName.' DISABLE KEYS');
}
/**
* Re-enable keys on the table
* @abstract
* @param string $tableName
*/
public function enableKeys($tableName)
{
return $this->query('ALTER TABLE '.$tableName.' ENABLE KEYS');
}
/**
* Returns a DB specific FROM clause which can be used to select against functions.
* Note that depending on the database that this may also be an empty string.
* @return string
*/
public function getFromDummyTable()
{
return '';
}
/**
* Returns a DB specific piece of SQL which will generate GUID (UUID)
* This string can be used in dynamic SQL to do multiple inserts with a single query.
* I.e. generate a unique Sugar id in a sub select of an insert statement.
* @return string
*/
public function getGuidSQL()
{
return 'UUID()';
}
}
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