* Copyright 2005-2007, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2005-2007, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs.model.datasources
* @since CakePHP(tm) v 0.10.0.1076
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
uses('set');
/**
* DboSource
*
* Creates DBO-descendant objects from a given db connection configuration
*
* @package cake
* @subpackage cake.cake.libs.model.datasources
*/
class DboSource extends DataSource {
/**
* Description string for this Database Data Source.
*
* @var unknown_type
*/
var $description = "Database Data Source";
/**
* Enter description here...
*
* @var unknown_type
*/
var $__bypass = false;
/**
* Enter description here...
*
* @var array
*/
var $__assocJoins = null;
/**
* Enter description here...
*
* @var unknown_type
*/
var $startQuote = null;
/**
* Enter description here...
*
* @var unknown_type
*/
var $endQuote = null;
/**
* Enter description here...
*
* @var unknown_type
*/
var $alias = 'AS ';
/**
* The set of valid SQL operations usable in a WHERE statement
*
* @var array
*/
var $__sqlOps = array('like', 'ilike', 'or', 'not', 'in', 'between', 'regexp', 'similar to');
/**
* Enter description here...
*
* @var unknown_type
*/
var $goofyLimit = false;
/**
* Constructor
*/
function __construct($config = null, $autoConnect = true) {
$this->debug = Configure::read() > 0;
$this->fullDebug = Configure::read() > 1;
parent::__construct($config);
if ($autoConnect) {
return $this->connect();
} else {
return true;
}
}
/**
* Reconnects to database server with optional new settings
*
* @param array $config An array defining the new configuration settings
* @return boolean True on success, false on failure
*/
function reconnect($config = null) {
$this->disconnect();
if ($config != null) {
$this->config = am($this->_baseConfig, $config);
}
return $this->connect();
}
/**
* Prepares a value, or an array of values for database queries by quoting and escaping them.
*
* @param mixed $data A value or an array of values to prepare.
* @return mixed Prepared value or array of values.
*/
function value($data, $column = null) {
if (is_array($data)) {
$out = array();
$keys = array_keys($data);
$count = count($data);
for($i = 0; $i < $count; $i++) {
$out[$keys[$i]] = $this->value($data[$keys[$i]]);
}
return $out;
} elseif (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) {
return $data;
} else {
return null;
}
}
/**
* Caches/returns cached results for child instances
*
* @return array
*/
function listSources($data = null) {
if ($this->_sources != null) {
return $this->_sources;
}
if (Configure::read() > 0) {
$expires = "+30 seconds";
} else {
$expires = "+999 days";
}
if ($data != null) {
$data = serialize($data);
}
$filename = ConnectionManager::getSourceName($this) . '_' . $this->config['database'] . '_list';
$new = cache('models' . DS . $filename, $data, $expires);
if ($new != null) {
$new = unserialize($new);
$this->_sources = $new;
}
return $new;
}
/**
* Convenience method for DboSource::listSources().
*
* @return array
*/
function sources() {
$return = array_map('strtolower', $this->listSources());
return $return;
}
/**
* SQL Query abstraction
*
* @return resource Result resource identifier
*/
function query() {
$args = func_get_args();
$fields = null;
$order = null;
$limit = null;
$page = null;
$recursive = null;
if (count($args) == 1) {
return $this->fetchAll($args[0]);
} elseif (count($args) > 1 && (strpos(low($args[0]), 'findby') === 0 || strpos(low($args[0]), 'findallby') === 0)) {
$params = $args[1];
if (strpos(strtolower($args[0]), 'findby') === 0) {
$all = false;
$field = Inflector::underscore(preg_replace('/findBy/i', '', $args[0]));
} else {
$all = true;
$field = Inflector::underscore(preg_replace('/findAllBy/i', '', $args[0]));
}
$or = (strpos($field, '_or_') !== false);
if ($or) {
$field = explode('_or_', $field);
} else {
$field = explode('_and_', $field);
}
$off = count($field) - 1;
if (isset($params[1 + $off])) {
$fields = $params[1 + $off];
}
if (isset($params[2 + $off])) {
$order = $params[2 + $off];
}
if(!isset($params[0])) {
return false;
}
$c = 0;
$query = array();
foreach ($field as $f) {
if (!is_array($params[$c])) {
$query[$args[2]->name . '.' . $f] = '= ' . $params[$c];
} else {
$query[$args[2]->name . '.' . $f] = $params[$c];
}
$c++;
}
if ($or) {
$query = array('OR' => $query);
}
if ($all) {
if (isset($params[3 + $off])) {
$limit = $params[3 + $off];
}
if (isset($params[4 + $off])) {
$page = $params[4 + $off];
}
if (isset($params[5 + $off])) {
$recursive = $params[5 + $off];
}
return $args[2]->findAll($query, $fields, $order, $limit, $page, $recursive);
} else {
if (isset($params[3 + $off])) {
$recursive = $params[3 + $off];
}
return $args[2]->find($query, $fields, $order, $recursive);
}
} else {
return $this->fetchAll($args[0], false);
}
}
/**
* Executes given SQL statement.
*
* @param string $sql SQL statement
* @return unknown
*/
function rawQuery($sql) {
$this->took = $this->error = $this->numRows = false;
return $this->execute($sql);
}
/**
* Queries the database with given SQL statement, and obtains some metadata about the result
* (rows affected, timing, any errors, number of rows in resultset). The query is also logged.
* If DEBUG is set, the log is shown all the time, else it is only shown on errors.
*
* @param string $sql
* @return unknown
*/
function execute($sql) {
$t = getMicrotime();
$this->_result = $this->_execute($sql);
$this->affected = $this->lastAffected();
$this->took = round((getMicrotime() - $t) * 1000, 0);
$this->error = $this->lastError();
$this->numRows = $this->lastNumRows($this->_result);
if($this->fullDebug && Configure::read() > 1) {
$this->logQuery($sql);
}
if ($this->error) {
$this->showQuery($sql);
return false;
} else {
return $this->_result;
}
}
/**
* Returns a row from current resultset as an array .
*
* @return array The fetched row as an array
*/
function fetchRow($sql = null) {
if (!empty($sql) && is_string($sql) && strlen($sql) > 5) {
if (!$this->execute($sql)) {
return null;
}
}
if (is_resource($this->_result) || is_object($this->_result)) {
$this->resultSet($this->_result);
$resultRow = $this->fetchResult();
return $resultRow;
} else {
return null;
}
}
/**
* @deprecated
* @see DboSource::fetchRow
*/
function fetchArray() {
trigger_error(__('Deprecated: Use DboSource::fetchRow() instead'), E_USER_WARNING);
return $this->fetchRow();
}
/**
* @deprecated
* @see DboSource::fetchRow
*/
function one($sql) {
trigger_error(__('Deprecated: Use DboSource::fetchRow($sql) instead'), E_USER_WARNING);
return $this->fetchRow($sql);
}
/**
* Returns an array of all result rows for a given SQL query.
* Returns false if no rows matched.
*
* @param string $sql SQL statement
* @param boolean $cache Enables returning/storing cached query results
* @return array Array of resultset rows, or false if no rows matched
*/
function fetchAll($sql, $cache = true, $modelName = null) {
if ($cache && isset($this->_queryCache[$sql])) {
if (preg_match('/^\s*select/i', $sql)) {
return $this->_queryCache[$sql];
}
}
if ($this->execute($sql)) {
$out = array();
while($item = $this->fetchRow()) {
$out[] = $item;
}
if ($cache) {
if (strpos(trim(strtolower($sql)), 'select') !== false) {
$this->_queryCache[$sql] = $out;
}
}
return $out;
} else {
return false;
}
}
/**
* Returns a single field of the first of query results for a given SQL query, or false if empty.
*
* @param string $name Name of the field
* @param string $sql SQL query
* @return unknown
*/
function field($name, $sql) {
$data = $this->fetchRow($sql);
if (!isset($data[$name]) || empty($data[$name])) {
return false;
} else {
return $data[$name];
}
}
/**
* Returns a quoted name of $data for use in an SQL statement.
* Strips fields out of SQL functions before quoting.
*
* @param string $data
* @return string SQL field
*/
function name($data) {
if (preg_match_all('/(.*)\((.*)\)(.*)/', $data, $fields)) {
$fields = Set::extract($fields, '{n}.0');
if (isset($fields[1]) && isset($fields[2])) {
return $fields[1] . '(' . $this->name($fields[2]) . ')' . $fields[3];
}
}
if ($data == '*') {
return '*';
}
$data = $this->startQuote . str_replace('.', $this->endQuote . '.' . $this->startQuote, $data) . $this->endQuote;
$data = str_replace($this->startQuote . $this->startQuote, $this->startQuote, $data);
return str_replace($this->endQuote . $this->endQuote, $this->endQuote, $data);
}
/**
* Checks if it's connected to the database
*
* @return boolean True if the database is connected, else false
*/
function isConnected() {
return $this->connected;
}
/**
* Outputs the contents of the queries log.
*
* @param boolean $sorted
*/
function showLog($sorted = false) {
if ($sorted) {
$log = sortByKey($this->_queriesLog, 'took', 'desc', SORT_NUMERIC);
} else {
$log = $this->_queriesLog;
}
if ($this->_queriesCnt > 1) {
$text = 'queries';
} else {
$text = 'query';
}
if (php_sapi_name() != 'cli') {
print ("\n{$this->_queriesCnt} {$text} took {$this->_queriesTime} ms\n");
print ("\n| Nr | Query | Error | Affected | Num. rows | Took (ms) |
|---|
\n\n\n");
foreach($log as $k => $i) {
print ("| " . ($k + 1) . " | {$i['query']} | {$i['error']} | {$i['affected']} | {$i['numRows']} | {$i['took']} |
\n");
}
print ("
\n");
} else {
foreach($log as $k => $i) {
print (($k + 1) . ". {$i['query']} {$i['error']}\n");
}
}
}
/**
* Log given SQL query.
*
* @param string $sql SQL statement
* @todo: Add hook to log errors instead of returning false
*/
function logQuery($sql) {
$this->_queriesCnt++;
$this->_queriesTime += $this->took;
$this->_queriesLog[] = array('query' => $sql,
'error' => $this->error,
'affected' => $this->affected,
'numRows' => $this->numRows,
'took' => $this->took
);
if (count($this->_queriesLog) > $this->_queriesLogMax) {
array_pop($this->_queriesLog);
}
if ($this->error) {
return false;
}
}
/**
* Output information about an SQL query. The SQL statement, number of rows in resultset,
* and execution time in microseconds. If the query fails, an error is output instead.
*
* @param string $sql Query to show information on.
*/
function showQuery($sql) {
$error = $this->error;
if (strlen($sql) > 200 && !$this->fullDebug && Configure::read() > 1) {
$sql = substr($sql, 0, 200) . '[...]';
}
if (($this->debug || $error) && Configure::read() > 0) {
e("Query: {$sql} ");
if ($error) {
trigger_error("SQL Error: {$this->error}", E_USER_WARNING);
} else {
e("[Aff:{$this->affected} Num:{$this->numRows} Took:{$this->took}ms]");
}
print ('
');
}
}
/**
* Gets full table name including prefix
*
* @param mixed $model
* @param boolean $quote
* @return string Full quoted table name
*/
function fullTableName($model, $quote = true) {
if (is_object($model)) {
$table = $model->table;
if ($model->tablePrefix != null && !empty($model->tablePrefix)) {
$table = $model->tablePrefix . $table;
}
} elseif (isset($this->config['prefix'])) {
$table = $this->config['prefix'] . strval($model);
} else {
$table = strval($model);
}
if ($quote) {
return $this->name($table);
}
return $table;
}
/**
* The "C" in CRUD
*
* @param Model $model
* @param array $fields
* @param array $values
* @return boolean Success
*/
function create(&$model, $fields = null, $values = null) {
$fieldInsert = array();
$valueInsert = array();
$id = null;
if ($fields == null) {
unset($fields, $values);
$fields = array_keys($model->data);
$values = array_values($model->data);
}
$count = count($fields);
for ($i = 0; $i < $count; $i++) {
$fieldInsert[] = $this->name($fields[$i]);
if ($fields[$i] == $model->primaryKey) {
$id = $values[$i];
}
}
$count = count($values);
for ($i = 0; $i < $count; $i++) {
$set = $this->value($values[$i], $model->getColumnType($fields[$i]));
if ($set === "''") {
unset ($fieldInsert[$i]);
} else {
$valueInsert[] = $set;
}
}
if ($this->execute('INSERT INTO ' . $this->fullTableName($model) . ' (' . join(',', $fieldInsert). ') VALUES (' . join(',', $valueInsert) . ')')) {
if (empty($id)) {
$id = $this->lastInsertId($this->fullTableName($model, false), $model->primaryKey);
}
$model->setInsertID($id);
$model->id = $id;
return true;
} else {
$model->onError();
return false;
}
}
/**
* The "R" in CRUD
*
* @param Model $model
* @param array $queryData
* @param integer $recursive Number of levels of association
* @return unknown
*/
function read(&$model, $queryData = array(), $recursive = null) {
$this->__scrubQueryData($queryData);
$null = null;
$array = array();
$linkedModels = array();
$this->__bypass = false;
$this->__assocJoins = null;
if (!is_null($recursive)) {
$_recursive = $model->recursive;
$model->recursive = $recursive;
}
if (!empty($queryData['fields'])) {
$this->__bypass = true;
$queryData['fields'] = $this->fields($model, null, $queryData['fields']);
} else {
$queryData['fields'] = $this->fields($model);
}
foreach($model->__associations as $type) {
foreach($model->{$type} as $assoc => $assocData) {
if ($model->recursive > -1) {
$linkModel =& $model->{$assoc};
$external = isset($assocData['external']);
if ($model->name == $linkModel->name && $type != 'hasAndBelongsToMany' && $type != 'hasMany') {
if (true === $this->generateSelfAssociationQuery($model, $linkModel, $type, $assoc, $assocData, $queryData, $external, $null)) {
$linkedModels[] = $type . '/' . $assoc;
}
} else {
if ($model->useDbConfig == $linkModel->useDbConfig) {
if (true === $this->generateAssociationQuery($model, $linkModel, $type, $assoc, $assocData, $queryData, $external, $null)) {
$linkedModels[] = $type . '/' . $assoc;
}
}
}
}
}
}
// Build final query SQL
$query = $this->generateAssociationQuery($model, $null, null, null, null, $queryData, false, $null);
$resultSet = $this->fetchAll($query, $model->cacheQueries, $model->name);
if ($resultSet === false) {
$model->onError();
return false;
}
$filtered = $this->__filterResults($resultSet, $model);
if ($model->recursive > 0) {
foreach($model->__associations as $type) {
foreach($model->{$type} as $assoc => $assocData) {
$db = null;
$linkModel =& $model->{$assoc};
if (!in_array($type . '/' . $assoc, $linkedModels)) {
if ($model->useDbConfig == $linkModel->useDbConfig) {
$db =& $this;
} else {
$db =& ConnectionManager::getDataSource($linkModel->useDbConfig);
}
} elseif($model->recursive > 1 && ($type == 'belongsTo' || $type == 'hasOne')) {
// Do recursive joins on belongsTo and hasOne relationships
$db =& $this;
} else {
unset ($db);
}
if (isset($db) && $db != null) {
$stack = array($assoc);
$db->queryAssociation($model, $linkModel, $type, $assoc, $assocData, $array, true, $resultSet, $model->recursive - 1, $stack);
unset($db);
}
}
}
$this->__filterResults($resultSet, $model, $filtered);
}
if (!is_null($recursive)) {
$model->recursive = $_recursive;
}
return $resultSet;
}
/**
* Private method. Passes association results thru afterFind filter of corresponding model
*
* @param unknown_type $results
* @param unknown_type $model
* @param unknown_type $filtered
* @return unknown
*/
function __filterResults(&$results, &$model, $filtered = array()) {
$filtering = array();
$associations = am($model->belongsTo, $model->hasOne, $model->hasMany, $model->hasAndBelongsToMany);
$count = count($results);
for($i = 0; $i < $count; $i++) {
if (is_array($results[$i])) {
$keys = array_keys($results[$i]);
$count2 = count($keys);
for($j = 0; $j < $count2; $j++) {
$key = $keys[$j];
if (isset($associations[$key])) {
$className = $associations[$key]['className'];
} else {
$className = $key;
}
if ($model->name != $className && !in_array($key, $filtered)) {
if (!in_array($key, $filtering)) {
$filtering[] = $key;
}
if (isset($model->{$className}) && is_object($model->{$className})) {
$data = $model->{$className}->afterFind(array(array($key => $results[$i][$key])), false);
}
$results[$i][$key] = $data[0][$key];
}
}
}
}
return $filtering;
}
/**
* Enter description here...
*
* @param Model $model
* @param unknown_type $linkModel
* @param string $type Association type
* @param unknown_type $association
* @param unknown_type $assocData
* @param unknown_type $queryData
* @param unknown_type $external
* @param unknown_type $resultSet
* @param integer $recursive Number of levels of association
* @param array $stack
*/
function queryAssociation(&$model, &$linkModel, $type, $association, $assocData, &$queryData, $external = false, &$resultSet, $recursive, $stack) {
$query = $this->generateAssociationQuery($model, $linkModel, $type, $association, $assocData, $queryData, $external, $resultSet);
if ($query) {
if (!isset($resultSet) || !is_array($resultSet)) {
if (Configure::read() > 0) {
e('SQL Error in model ' . $model->name . ': ');
if (isset($this->error) && $this->error != null) {
e($this->error);
}
e('
');
}
return null;
}
$count = count($resultSet);
for($i = 0; $i < $count; $i++) {
$row =& $resultSet[$i];
$q = $this->insertQueryData($query, $resultSet[$i], $association, $assocData, $model, $linkModel, $stack);
if($q != false){
$fetch = $this->fetchAll($q, $model->cacheQueries, $model->name);
} else {
$fetch = null;
}
if (!empty($fetch) && is_array($fetch)) {
if ($recursive > 0) {
foreach($linkModel->__associations as $type1) {
foreach($linkModel->{$type1} as $assoc1 => $assocData1) {
$deepModel =& $linkModel->{$assocData1['className']};
if ($deepModel->alias != $model->name) {
$tmpStack = $stack;
$tmpStack[] = $assoc1;
if ($linkModel->useDbConfig == $deepModel->useDbConfig) {
$db =& $this;
} else {
$db =& ConnectionManager::getDataSource($deepModel->useDbConfig);
}
$db->queryAssociation($linkModel, $deepModel, $type1, $assoc1, $assocData1, $queryData, true, $fetch, $recursive - 1, $tmpStack);
}
}
}
}
$this->__mergeAssociation($resultSet[$i], $fetch, $association, $type);
} else {
$tempArray[0][$association] = false;
$this->__mergeAssociation($resultSet[$i], $tempArray, $association, $type);
}
}
}
}
/**
* Enter description here...
*
* @param unknown_type $data
* @param unknown_type $merge
* @param unknown_type $association
* @param unknown_type $type
*/
function __mergeAssociation(&$data, $merge, $association, $type) {
if (isset($merge[0]) && !isset($merge[0][$association])) {
$association = Inflector::pluralize($association);
}
if ($type == 'belongsTo' || $type == 'hasOne') {
if (isset($merge[$association])) {
$data[$association] = $merge[$association][0];
} else {
if (count($merge[0][$association]) > 1) {
foreach($merge[0] as $assoc => $data2) {
if ($assoc != $association) {
$merge[0][$association][$assoc] = $data2;
}
}
}
if(!isset($data[$association])) {
$data[$association] = $merge[0][$association];
} else {
if(is_array($merge[0][$association])){
foreach ($data[$association] as $k => $v) {
if(!is_array($v)){
$dataAssocTmp[$k] = $v;
}
}
foreach ($merge[0][$association] as $k => $v) {
if(!is_array($v)){
$mergeAssocTmp[$k] = $v;
}
}
if ($mergeAssocTmp == $dataAssocTmp) {
$data[$association] = array_merge($merge[0][$association], $data[$association]);
} else {
$data[$association][$association] = $merge[0][$association];
}
}
}
}
} else {
if ($merge[0][$association] === false) {
if(!isset($data[$association])){
$data[$association] = array();
}
} else {
foreach($merge as $i => $row) {
if (count($row) == 1) {
$data[$association][] = $row[$association];
} else {
$tmp = array_merge($row[$association], $row);
unset($tmp[$association]);
$data[$association][] = $tmp;
}
}
}
}
}
/**
* Enter description here...
*
* @param unknown_type $model
* @param unknown_type $linkModel
* @param unknown_type $type
* @param unknown_type $association
* @param unknown_type $assocData
* @param unknown_type $queryData
* @param unknown_type $external
* @param unknown_type $resultSet
* @return unknown
*/
function generateSelfAssociationQuery(&$model, &$linkModel, $type, $association = null, $assocData = array(), &$queryData, $external = false, &$resultSet) {
$alias = $association;
if (empty($alias) && !empty($linkModel)) {
$alias = $linkModel->name;
}
if (!isset($queryData['selfJoin'])) {
$queryData['selfJoin'] = array();
$self = array(
'fields' => $this->fields($model, null, $queryData['fields']),
'joins' => array(array(
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'type' => 'LEFT',
'conditions' => array($model->escapeField($assocData['foreignKey']) => '{$__cakeIdentifier[' . "{$alias}.{$linkModel->primaryKey}" . ']__$}')
)),
'table' => $this->fullTableName($model),
'alias' => $model->name,
'limit' => $queryData['limit'],
'offset' => $queryData['offset'],
'conditions'=> $queryData['conditions'],
'order' => $queryData['order']
);
if (!empty($queryData['joins'])) {
foreach($queryData['joins'] as $join) {
$self['joins'][] = $join;
}
}
if($this->__bypass === false) {
$self['fields'] = am($self['fields'], $this->fields($linkModel, $alias, ''));
}
$sql = $this->buildStatement($self, $model);
if (!in_array($sql, $queryData['selfJoin'])) {
$queryData['selfJoin'][] = $sql;
return true;
}
} elseif (isset($linkModel)) {
return $this->generateAssociationQuery($model, $linkModel, $type, $association, $assocData, $queryData, $external, $resultSet);
} else {
$result = $queryData['selfJoin'][0];
if (isset($this->__assocJoins)) {
$result = preg_replace('/FROM/', ', ' . join(', ', $this->__assocJoins['fields']) . ' FROM', $result);
}
return $result;
}
}
/**
* Enter description here...
*
* @param Model $model
* @param unknown_type $linkModel
* @param unknown_type $type
* @param unknown_type $association
* @param unknown_type $assocData
* @param unknown_type $queryData
* @param unknown_type $external
* @param unknown_type $resultSet
* @return unknown
*/
function generateAssociationQuery(&$model, &$linkModel, $type, $association = null, $assocData = array(), &$queryData, $external = false, &$resultSet) {
$this->__scrubQueryData($queryData);
$this->__scrubQueryData($assocData);
$joinedOnSelf = false;
if (empty($queryData['fields'])) {
$queryData['fields'] = $this->fields($model, $model->name);
}
if ($linkModel == null) {
if (array_key_exists('selfJoin', $queryData)) {
return $this->generateSelfAssociationQuery($model, $linkModel, $type, $association, $assocData, $queryData, $external, $resultSet);
} else {
if (isset($this->__assocJoins)) {
$joinFields = ', ';
$joinFields .= join(', ', $this->__assocJoins['fields']);
} else {
$joinFields = null;
}
return $this->buildStatement(array(
'fields' => array_unique($queryData['fields']),
'table' => $this->fullTableName($model),
'alias' => $model->name,
'limit' => $queryData['limit'],
'offset' => $queryData['offset'],
'joins' => $queryData['joins'],
'conditions' => $queryData['conditions'],
'order' => $queryData['order']
), $model);
}
}
$alias = $association;
if ($model->name == $linkModel->name) {
$joinedOnSelf = true;
}
if ($external && isset($assocData['finderQuery'])) {
if (!empty($assocData['finderQuery'])) {
return $assocData['finderQuery'];
}
}
if ((!$external && in_array($type, array('hasOne', 'belongsTo')) && $this->__bypass === false) || $external) {
$fields = $this->fields($linkModel, $alias, $assocData['fields']);
} else {
$fields = array();
}
$limit = '';
if (isset($assocData['limit'])) {
if (!isset($assocData['offset']) && isset($assocData['page'])) {
$assocData['offset'] = ($assocData['page'] - 1) * $assocData['limit'];
} elseif (!isset($assocData['offset'])) {
$assocData['offset'] = null;
}
$limit = $this->limit($assocData['limit'], $assocData['offset']);
}
switch($type) {
case 'hasOne':
case 'belongsTo':
if ($external) {
if ($type == 'hasOne') {
$conditions = $this->__mergeConditions($queryData['conditions'], array("{$alias}.{$assocData['foreignKey']}" => '{$__cakeID__$}'));
} elseif ($type == 'belongsTo') {
$conditions = $this->__mergeConditions($assocData['conditions'], array("{$alias}.{$linkModel->primaryKey}" => '{$__cakeForeignKey__$}'));
}
$query = am($assocData, array(
'conditions' => $conditions,
'table' => $this->fullTableName($linkModel),
'fields' => $fields,
'alias' => $alias
));
if ($type == 'belongsTo') {
// Dunno if we should be doing this for hasOne also...?
// Or maybe not doing it at all...?
$query = am($query, array(
'order' => $assocData['order'],
'limit' => $limit
));
}
} else {
if ($type == 'hasOne') {
$conditions = array("{$alias}.{$assocData['foreignKey']}" => '{$__cakeIdentifier[' . "{$model->name}.{$model->primaryKey}" . ']__$}');
} elseif ($type == 'belongsTo') {
$conditions = array($model->escapeField($assocData['foreignKey']) => '{$__cakeIdentifier[' . "{$alias}.{$linkModel->primaryKey}" . ']__$}');
}
$join = array(
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'type' => 'LEFT',
'conditions' => $conditions
);
$queryData['fields'] = am($queryData['fields'], $fields);
if (!empty($assocData['order'])) {
$queryData['order'][] = $assocData['order'];
}
if (!in_array($join, $queryData['joins'])) {
$queryData['joins'][] = $join;
}
return true;
}
break;
case 'hasMany':
$query = array(
'conditions' => $this->__mergeConditions(array("{$alias}.{$assocData['foreignKey']}" => '{$__cakeID__$}'), $assocData['conditions']),
'fields' => $this->fields($linkModel, $alias, $assocData['fields']),
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'order' => $assocData['order'],
'limit' => $limit
);
break;
case 'hasAndBelongsToMany':
$joinTbl = $this->fullTableName($assocData['joinTable']);
$joinFields = array();
$joinAssoc = null;
$joinAlias = $joinTbl;
if (isset($assocData['with']) && !empty($assocData['with'])) {
$joinAssoc = $joinAlias = $model->{$assocData['with']}->name;
$joinFields = $model->{$assocData['with']}->loadInfo();
$joinFields = $joinFields->extract('{n}.name');
if (is_array($joinFields) && !empty($joinFields)) {
$joinFields = $this->fields($model->{$assocData['with']}, $model->{$assocData['with']}->name, $joinFields);
}
}
$query = array(
'conditions' => $assocData['conditions'],
'limit' => $limit,
'offset' => $assocData['offset'],
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'fields' => am($this->fields($linkModel, $alias, $assocData['fields']), $joinFields),
'order' => $assocData['order'],
'joins' => array(array(
'table' => $joinTbl,
'alias' => $joinAssoc,
'conditions' => array(
array("{$joinAlias}.{$assocData['foreignKey']}" => '{$__cakeID__$}'),
array("{$joinAlias}.{$assocData['associationForeignKey']}" => '{$__cakeIdentifier['."{$alias}.{$linkModel->primaryKey}".']__$}')
))
)
);
break;
}
if (isset($query)) {
return $this->buildStatement($query, $model);
}
return null;
}
function buildJoinStatement($join) {
$data = am(array(
'type' => null,
'alias' => null,
'table' => 'join_table',
'conditions' => array()
), $join);
if (!empty($data['alias'])) {
$data['alias'] = $this->alias . $this->name($data['alias']);
}
if (!empty($data['conditions'])) {
$data['conditions'] = preg_replace('/^\s*WHERE\s*/', '', trim($this->conditions($data['conditions'])));
}
return $this->renderJoinStatement($data);
}
function buildStatement($query, $model) {
$query = am(array('offset' => null, 'joins' => array()), $query);
if (!empty($query['joins'])) {
for ($i = 0; $i < count($query['joins']); $i++) {
if (is_array($query['joins'][$i])) {
$query['joins'][$i] = $this->buildJoinStatement($query['joins'][$i]);
}
}
}
return $this->renderStatement(array(
'conditions' => $this->conditions($query['conditions']),
'fields' => join(', ', $query['fields']),
'table' => $query['table'],
'alias' => $this->alias . $this->name($query['alias']),
'order' => $this->order($query['order']),
'limit' => $this->limit($query['limit'], $query['offset']),
'joins' => join(' ', $query['joins'])
));
}
function renderJoinStatement($data) {
extract($data);
return trim("{$type} JOIN {$table} {$alias} ON {$conditions}");
}
function renderStatement($data) {
extract($data);
return "SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$order} {$limit}";
}
/**
* Private method
*
* @return array
*/
function __mergeConditions($query, $assoc) {
if (!empty($assoc)) {
if (is_array($query)) {
return array_merge((array)$assoc, $query);
} else {
if (!empty($query)) {
$query = array($query);
if (is_array($assoc)) {
$query = array_merge($query, $assoc);
} else {
$query[] = $assoc;
}
return $query;
} else {
return $assoc;
}
}
}
return $query;
}
/**
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
*
* @param Model $model
* @param array $fields
* @param array $values
* @param mixed $conditions
* @return array
*/
function update(&$model, $fields = array(), $values = null, $conditions = null) {
$updates = array();
if ($values == null) {
$combined = $fields;
} else {
$combined = array_combine($fields, $values);
}
foreach($combined as $field => $value) {
if ($value === null) {
$updates[] = $this->name($field) . ' = NULL';
} else {
$update = $this->name($field) . ' = ';
if ($conditions == null) {
$update .= $this->value($value, $model->getColumnType($field));
} else {
$update .= $value;
}
$updates[] = $update;
}
}
$conditions = $this->defaultConditions($model, $conditions);
if ($conditions === false) {
return false;
}
$fields = join(',', $updates);
$table = $this->fullTableName($model);
$conditions = $this->conditions($conditions);
if (!$this->execute("UPDATE {$table} SET {$fields} {$conditions}")) {
$model->onError();
return false;
}
return true;
}
/**
* Generates and executes an SQL DELETE statement for given id on given model.
*
* @param Model $model
* @param mixed $conditions
* @return boolean Success
*/
function delete(&$model, $conditions = null) {
$query = $this->defaultConditions($model, $conditions);
if ($query === false) {
return false;
}
$table = $this->fullTableName($model);
$conditions = $this->conditions($query);
if ($this->execute("DELETE FROM {$table} {$conditions}") === false) {
$model->onError();
return false;
}
return true;
}
/**
* Creates a default set of conditions from the model if $conditions is null/empty.
*
* @param object $model
* @param mixed $conditions
* @return mixed
*/
function defaultConditions(&$model, $conditions) {
if (!empty($conditions)) {
return $conditions;
}
if (!$model->exists()) {
return false;
}
return array($model->primaryKey => (array)$model->getID());
}
/**
* Returns a key formatted like a string Model.fieldname(i.e. Post.title, or Country.name)
*
* @param unknown_type $model
* @param unknown_type $key
* @param unknown_type $assoc
* @return string
*/
function resolveKey($model, $key, $assoc = null) {
if (empty($assoc)) {
$assoc = $model->name;
}
if (!strpos('.', $key)) {
return $this->name($model->name) . '.' . $this->name($key);
}
return $key;
}
/**
* Returns the column type of a given
*
* @param Model $model
* @param string $field
*/
function getColumnType(&$model, $field) {
return $model->getColumnType($field);
}
/**
* Private helper method to remove query metadata in given data array.
*
* @param array $data
*/
function __scrubQueryData(&$data) {
foreach (array('conditions', 'fields', 'joins', 'order', 'limit', 'offset') as $key) {
if (!isset($data[$key]) || empty($data[$key])) {
$data[$key] = array();
}
}
}
/**
* Generates the fields list of an SQL query.
*
* @param Model $model
* @param string $alias Alias tablename
* @param mixed $fields
* @param boolean $quote If false, returns fields array unquoted
* @return array
*/
function fields(&$model, $alias = null, $fields = array(), $quote = true) {
if (empty($alias)) {
$alias = $model->name;
}
if (!is_array($fields)) {
if (!empty($fields)) {
$depth = 0;
$offset = 0;
$buffer = '';
$results = array();
$length = strlen($fields);
while ($offset < $length) {
$tmpOffset = -1;
$offsets = array(strpos($fields, ',', $offset), strpos($fields, '(', $offset), strpos($fields, ')', $offset));
for ($i = 0; $i < 3; $i++) {
if ($offsets[$i] !== false && ($offsets[$i] < $tmpOffset || $tmpOffset == -1)) {
$tmpOffset = $offsets[$i];
}
}
if ($tmpOffset !== -1) {
$buffer .= substr($fields, $offset, ($tmpOffset - $offset));
if ($fields{$tmpOffset} == ',' && $depth == 0) {
$results[] = $buffer;
$buffer = '';
} else {
$buffer .= $fields{$tmpOffset};
}
if ($fields{$tmpOffset} == '(') {
$depth++;
}
if ($fields{$tmpOffset} == ')') {
$depth--;
}
$offset = ++$tmpOffset;
} else {
$results[] = $buffer . substr($fields, $offset);
$offset = $length;
}
}
if (empty($results) && !empty($buffer)) {
$results[] = $buffer;
}
if (!empty($results)) {
$fields = array_map('trim', $results);
} else {
$fields = array();
}
}
}
if (empty($fields)) {
$fieldData = $model->loadInfo();
$fields = $fieldData->extract('{n}.name');
} else {
$fields = array_filter($fields);
}
if (!$quote) {
return $fields;
}
$count = count($fields);
if ($count >= 1 && !in_array($fields[0], array('*', 'COUNT(*)'))) {
for($i = 0; $i < $count; $i++) {
if (!preg_match('/^.+\\(.*\\)/', $fields[$i])) {
$prepend = '';
if (strpos($fields[$i], 'DISTINCT') !== false) {
$prepend = 'DISTINCT ';
$fields[$i] = trim(r('DISTINCT', '', $fields[$i]));
}
$dot = strrpos($fields[$i], '.');
if ($dot === false) {
$fields[$i] = $prepend . $this->name($alias) . '.' . $this->name($fields[$i]);
} else {
$build = explode('.', $fields[$i]);
if (!Set::numeric($build)) {
$fields[$i] = $prepend . $this->name($build[0]) . '.' . $this->name($build[1]);
}
}
} elseif (preg_match('/\(([\.\w]+)\)/', $fields[$i], $field)) {
if (isset($field[1])) {
if (strrpos($field[1], '.') === false) {
$field[1] = $this->name($alias) . '.' . $this->name($field[1]);
} else {
$field[0] = explode('.', $field[1]);
if (!Set::numeric($field[0])) {
$field[0] = join('.', array_map(array($this, 'name'), $field[0]));
$fields[$i] = preg_replace('/\(' . $field[1] . '\)/', '(' . $field[0] . ')', $fields[$i], 1);
}
}
}
}
}
}
return $fields;
}
/**
* Creates a WHERE clause by parsing given conditions data.
*
* @param mixed $conditions Array or string of conditions
* @return string SQL fragment
*/
function conditions($conditions, $quoteValues = true) {
$clause = $out = '';
if (is_string($conditions) || empty($conditions) || $conditions === true) {
if (empty($conditions) || trim($conditions) == '' || $conditions === true) {
return ' WHERE 1 = 1';
}
if (!preg_match('/^WHERE\\x20|^GROUP\\x20BY\\x20|^HAVING\\x20|^ORDER\\x20BY\\x20/i', $conditions, $match)) {
$clause = ' WHERE ';
}
if (trim($conditions) == '') {
$conditions = ' 1 = 1';
} else {
$start = null;
$end = null;
if (!empty($this->startQuote)) {
$start = '\\\\' . $this->startQuote . '\\\\';
}
$end = $this->endQuote;
if (!empty($this->endQuote)) {
$end = '\\\\' . $this->endQuote . '\\\\';
}
preg_match_all('/(?:\'[^\'\\\]*(?:\\\.[^\'\\\]*)*\')|([a-z0-9_' . $start . $end . ']*\\.[a-z0-9_' . $start . $end . ']*)/i', $conditions, $match, PREG_PATTERN_ORDER);
if (isset($match['1']['0'])) {
$pregCount = count($match['1']);
for($i = 0; $i < $pregCount; $i++) {
if (!empty($match['1'][$i]) && !is_numeric($match['1'][$i])) {
$conditions = preg_replace('/^' . $match['0'][$i] . '(?=[^\\w])/', ' ' . $this->name($match['1'][$i]), $conditions . ' ');
if (strpos($conditions, '(' . $match['0'][$i]) === false) {
$conditions = preg_replace('/[^\w]' . $match['0'][$i] . '(?=[^\\w])/', ' '.$this->name($match['1'][$i]), $conditions);
} else {
$conditions = preg_replace('/' . $match['0'][$i] . '(?=[^\\w])/', ' '.$this->name($match['1'][$i]), $conditions);
}
}
}
$conditions = rtrim($conditions);
}
}
return $clause . $conditions;
} else {
$clause = ' WHERE ';
if (!empty($conditions)) {
$out = $this->conditionKeysToString($conditions, $quoteValues);
}
if (empty($out) || empty($conditions)) {
return $clause . ' 1 = 1';
}
return $clause . join(' AND ', $out);
}
}
/**
* Creates a WHERE clause by parsing given conditions array. Used by DboSource::conditions().
*
* @param array $conditions Array or string of conditions
* @return string SQL fragment
*/
function conditionKeysToString($conditions, $quoteValues = true) {
$c = 0;
$data = null;
$out = array();
$bool = array('and', 'or', 'not', 'and not', 'or not', 'xor', '||', '&&');
$join = ' AND ';
foreach($conditions as $key => $value) {
if (is_numeric($key) && empty($value)) {
continue;
}
if (in_array(strtolower(trim($key)), $bool)) {
$join = ' ' . strtoupper($key) . ' ';
$value = $this->conditionKeysToString($value, $quoteValues);
if (strpos($join, 'NOT') !== false) {
if (up(trim($key)) == 'NOT') {
$key = 'AND ' . $key;
}
$out[] = 'NOT (' . join(') ' . strtoupper($key) . ' (', $value) . ')';
} else {
$out[] = '(' . join(') ' . strtoupper($key) . ' (', $value) . ')';
}
} else {
if (is_string($value) && preg_match('/^\{\$__cakeIdentifier\[(.*)\]__\$}$/', $value, $identifier) && isset($identifier[1])) {
$data .= $this->name($key) . ' = ' . $this->name($identifier[1]);
} elseif (is_array($value) && !empty($value)) {
$keys = array_keys($value);
if ($keys[0] === 0) {
$data = $this->name($key) . ' IN (';
if (strpos($value[0], '-!') === 0){
$value[0] = str_replace('-!', '', $value[0]);
$data .= $value[0];
$data .= ')';
} else {
if ($quoteValues) {
foreach($value as $valElement) {
$data .= $this->value($valElement) . ', ';
}
}
$data[strlen($data) - 2] = ')';
}
} else {
$ret = $this->conditionKeysToString($value, $quoteValues);
if (count($ret) > 1) {
$out[] = '(' . join(') AND (', $ret) . ')';
} elseif (isset($ret[0])) {
$out[] = $ret[0];
}
}
} elseif (is_numeric($key)) {
$data = ' ' . $value;
} elseif ($value === null || (is_array($value) && empty($value))) {
$data = $this->name($key) . ' IS NULL';
} elseif ($value === false || $value === true) {
$data = $this->name($key) . " = " . $this->boolean($value);
} elseif ($value === '') {
$data = $this->name($key) . " = ''";
} elseif (preg_match('/^([a-z]*\\([a-z0-9]*\\)\\x20?|(?:' . join('\\x20)|(?:', $this->__sqlOps) . '\\x20)|<=?(?![^>]+>)\\x20?|[>=!]{1,3}(?!<)\\x20?)?(.*)/i', $value, $match)) {
if (preg_match('/(\\x20[\\w]*\\x20)/', $key, $regs)) {
$clause = $regs['1'];
$key = preg_replace('/' . $regs['1'] . '/', '', $key);
}
$mValue = trim($match['1']);
if (empty($match['1'])) {
$match['1'] = ' = ';
} elseif (empty($mValue)) {
$match['1'] = ' = ';
$match['2'] = $match['0'];
}
if (strpos($match['2'], '-!') === 0) {
$match['2'] = str_replace('-!', '', $match['2']);
$data = $this->name($key) . ' ' . $match['1'] . ' ' . $match['2'];
} else {
if (!empty($match['2']) && $quoteValues) {
$match['2'] = $this->value($match['2']);
$match['2'] = str_replace(' AND ', "' AND '", $match['2']);
}
$data = $this->name($key) . ' ' . $match['1'] . ' ' . $match['2'];
}
}
if ($data != null) {
$out[] = $data;
$data = null;
}
}
$c++;
}
return $out;
}
/**
* Returns a limit statement in the correct format for the particular database.
*
* @param int $limit Limit of results returned
* @param int $offset Offset from which to start results
* @return string SQL limit/offset statement
*/
function limit($limit, $offset = null) {
if ($limit) {
$rt = '';
if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
$rt = ' LIMIT';
}
if ($offset) {
$rt .= ' ' . $offset . ',';
}
$rt .= ' ' . $limit;
return $rt;
}
return null;
}
/**
* Returns an ORDER BY clause as a string.
*
* @param string $key Field reference, as a key (i.e. Post.title)
* @param string $direction Direction (ASC or DESC)
* @return string ORDER BY clause
*/
function order($keys, $direction = 'ASC') {
if (is_string($keys) && strpos($keys, ',') && !preg_match('/\(.+\,.+\)/', $keys)) {
$keys = explode(',', $keys);
array_map('trim', $keys);
}
if (is_array($keys)) {
foreach($keys as $key => $val) {
if (is_numeric($key) && empty($val)) {
unset ($keys[$key]);
}
}
}
if (empty($keys) || (is_array($keys) && count($keys) && isset($keys[0]) && empty($keys[0]))) {
return '';
}
if (is_array($keys)) {
if (Set::countDim($keys) > 1) {
$new = array();
foreach($keys as $val) {
$val = $this->order($val);
$new[] = $val;
}
$keys = $new;
}
foreach($keys as $key => $value) {
if (is_numeric($key)) {
$value = ltrim(r('ORDER BY ', '', $this->order($value)));
$key = $value;
if (!preg_match('/\\x20ASC|\\x20DESC/i', $key)) {
$value = ' ' . $direction;
} else {
$value = '';
}
} else {
$value = ' ' . $value;
}
if (!preg_match('/^.+\\(.*\\)/', $key) && !strpos($key, ',')) {
$dir = '';
$hasDir = preg_match('/\\x20ASC|\\x20DESC/i', $key, $dir);
if ($hasDir) {
$dir = $dir[0];
$key = preg_replace('/\\x20ASC|\\x20DESC/i', '', $key);
} else {
$dir = '';
}
$key = trim($this->name(trim($key)) . ' ' . trim($dir));
}
$order[] = $this->order($key . $value);
}
return ' ORDER BY ' . trim(r('ORDER BY', '', join(',', $order)));
} else {
$keys = preg_replace('/ORDER\\x20BY/i', '', $keys);
if (strpos($keys, '.')) {
preg_match_all('/([a-zA-Z0-9_]{1,})\\.([a-zA-Z0-9_]{1,})/', $keys, $result,
PREG_PATTERN_ORDER);
$pregCount = count($result['0']);
for($i = 0; $i < $pregCount; $i++) {
$keys = preg_replace('/' . $result['0'][$i] . '/', $this->name($result['0'][$i]), $keys);
}
if (preg_match('/\\x20ASC|\\x20DESC/i', $keys)) {
return ' ORDER BY ' . $keys;
} else {
return ' ORDER BY ' . $keys . ' ' . $direction;
}
} elseif(preg_match('/(\\x20ASC|\\x20DESC)/i', $keys, $match)) {
$direction = $match['1'];
$keys = preg_replace('/' . $match['1'] . '/', '', $keys);
return ' ORDER BY ' . $keys . $direction;
} else {
$direction = ' ' . $direction;
}
return ' ORDER BY ' . $keys . $direction;
}
}
/**
* Disconnects database, kills the connection and says the connection is closed,
* and if DEBUG is turned on, the log for this object is shown.
*
*/
function close() {
if ($this->fullDebug && Configure::read() > 1) {
$this->showLog();
}
$this->disconnect();
}
/**
* Checks if the specified table contains any record matching specified SQL
*
* @param Model $model Model to search
* @param string $sql SQL WHERE clause (condition only, not the "WHERE" part)
* @return boolean True if the table has a matching record, else false
*/
function hasAny($model, $sql) {
$sql = $this->conditions($sql);
$out = $this->fetchRow("SELECT COUNT(" . $model->primaryKey . ") " . $this->alias . "count FROM " . $this->fullTableName($model) . ' ' . ($sql ? ' ' . $sql : 'WHERE 1 = 1'));
if (is_array($out)) {
return $out[0]['count'];
} else {
return false;
}
}
/**
* Translates between PHP boolean values and Database (faked) boolean values
*
* @param mixed $data Value to be translated
* @return mixed Converted boolean value
*/
function boolean($data) {
if ($data === true || $data === false) {
if ($data === true) {
return 1;
}
return 0;
} else {
if (!empty($data)) {
return true;
}
return false;
}
}
/**
* Destructor. Closes connection to the database.
*
*/
function __destruct() {
if ($this->_transactionStarted) {
$null = null;
$this->rollback($null);
}
$this->close();
parent::__destruct();
}
}
?>