'primary', 'MUL' => 'index', 'UNI' => 'unique');
/**
* Database keyword used to assign aliases to identifiers.
*
* @var string
*/
var $alias = 'AS ';
/**
* Caches fields quoted in DboSource::name()
*
* @var array
*/
var $fieldCache = array();
/**
* Bypass automatic adding of joined fields/associations.
*
* @var boolean
*/
var $__bypass = false;
/**
* 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');
/**
* Index of basic SQL commands
*
* @var array
* @access protected
*/
var $_commands = array(
'begin' => 'BEGIN',
'commit' => 'COMMIT',
'rollback' => 'ROLLBACK'
);
/**
* Constructor
*/
function __construct($config = null, $autoConnect = true) {
if (!isset($config['prefix'])) {
$config['prefix'] = '';
}
parent::__construct($config);
$this->fullDebug = Configure::read() > 1;
if ($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();
$this->setConfig($config);
$this->_sources = null;
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.
* @param string $column The column into which this data will be inserted
* @param boolean $read Value to be used in READ or WRITE context
* @return mixed Prepared value or array of values.
*/
function value($data, $column = null, $read = true) {
if (is_array($data) && !empty($data)) {
return array_map(
array(&$this, 'value'),
$data, array_fill(0, count($data), $column), array_fill(0, count($data), $read)
);
} elseif (is_object($data) && isset($data->type)) {
if ($data->type == 'identifier') {
return $this->name($data->value);
} elseif ($data->type == 'expression') {
return $data->value;
}
} elseif (in_array($data, array('{$__cakeID__$}', '{$__cakeForeignKey__$}'), true)) {
return $data;
} else {
return null;
}
}
/**
* Returns an object to represent a database identifier in a query
*
* @param string $identifier
* @return object An object representing a database identifier to be used in a query
*/
function identifier($identifier) {
$obj = new stdClass();
$obj->type = 'identifier';
$obj->value = $identifier;
return $obj;
}
/**
* Returns an object to represent a database expression in a query
*
* @param string $expression
* @return object An object representing a database expression to be used in a query
*/
function expression($expression) {
$obj = new stdClass();
$obj->type = 'expression';
$obj->value = $expression;
return $obj;
}
/**
* 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
* @param array $options
* @return mixed Resource or object representing the result set, or false on failure
*/
function execute($sql, $options = array()) {
$defaults = array('stats' => true, 'log' => $this->fullDebug);
$options = array_merge($defaults, $options);
if ($options['stats']) {
$t = getMicrotime();
$this->_result = $this->_execute($sql);
$this->took = round((getMicrotime() - $t) * 1000, 0);
$this->affected = $this->lastAffected();
$this->error = $this->lastError();
$this->numRows = $this->lastNumRows();
}
if ($options['log']) {
$this->logQuery($sql);
}
if ($this->error) {
$this->showQuery($sql);
return false;
} else {
return $this->_result;
}
}
/**
* DataSource 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($args) > 1 && (strpos(strtolower($args[0]), 'findby') === 0 || strpos(strtolower($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 (!array_key_exists(0, $params)) {
return false;
}
$c = 0;
$conditions = array();
foreach ($field as $f) {
$conditions[$args[2]->alias . '.' . $f] = $params[$c];
$c++;
}
if ($or) {
$conditions = array('OR' => $conditions);
}
if ($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 $args[2]->find('all', compact('conditions', 'fields', 'order', 'limit', 'page', 'recursive'));
} else {
if (isset($params[3 + $off])) {
$recursive = $params[3 + $off];
}
return $args[2]->find('first', compact('conditions', 'fields', 'order', 'recursive'));
}
} else {
if (isset($args[1]) && $args[1] === true) {
return $this->fetchAll($args[0], true);
} else if (isset($args[1]) && !is_array($args[1]) ) {
return $this->fetchAll($args[0], false);
} else if (isset($args[1]) && is_array($args[1])) {
$offset = 0;
if (isset($args[2])) {
$cache = $args[2];
} else {
$cache = true;
}
$args[1] = array_map(array(&$this, 'value'), $args[1]);
return $this->fetchAll(String::insert($args[0], $args[1]), $cache);
}
}
}
/**
* Returns a row from current resultset as an array
*
* @return array The fetched row as an array
*/
function fetchRow($sql = null) {
if (!empty($sql) && is_string($sql) && strlen($sql) > 5) {
if (!$this->execute($sql)) {
return null;
}
}
if ($this->hasResult()) {
$this->resultSet($this->_result);
$resultRow = $this->fetchResult();
return $resultRow;
} else {
return null;
}
}
/**
* 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();
$first = $this->fetchRow();
if ($first != null) {
$out[] = $first;
}
while ($this->hasResult() && $item = $this->fetchResult()) {
$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 ($data == '*') {
return '*';
}
if (is_object($data) && isset($data->type)) {
return $data->value;
}
$array = is_array($data);
$data = (array)$data;
$count = count($data);
for ($i = 0; $i < $count; $i++) {
if ($data[$i] == '*') {
continue;
}
if (strpos($data[$i], '(') !== false && preg_match_all('/([^(]*)\((.*)\)(.*)/', $data[$i], $fields)) {
$fields = Set::extract($fields, '{n}.0');
if (!empty($fields[1])) {
if (!empty($fields[2])) {
$data[$i] = $fields[1] . '(' . $this->name($fields[2]) . ')' . $fields[3];
} else {
$data[$i] = $fields[1] . '()' . $fields[3];
}
}
}
$data[$i] = str_replace('.', $this->endQuote . '.' . $this->startQuote, $data[$i]);
$data[$i] = $this->startQuote . $data[$i] . $this->endQuote;
$data[$i] = str_replace($this->startQuote . $this->startQuote, $this->startQuote, $data[$i]);
$data[$i] = str_replace($this->startQuote . '(', '(', $data[$i]);
$data[$i] = str_replace(')' . $this->startQuote, ')', $data[$i]);
if (strpos($data[$i], ' AS ')) {
$data[$i] = str_replace(' AS ', $this->endQuote . ' AS ' . $this->startQuote, $data[$i]);
}
if (!empty($this->endQuote) && $this->endQuote == $this->startQuote) {
if (substr_count($data[$i], $this->endQuote) % 2 == 1) {
$data[$i] = trim($data[$i], $this->endQuote);
}
}
if (strpos($data[$i], '*')) {
$data[$i] = str_replace($this->endQuote . '*' . $this->endQuote, '*', $data[$i]);
}
$data[$i] = str_replace($this->endQuote . $this->endQuote, $this->endQuote, $data[$i]);
}
return (!$array) ? $data[0] : $data;
}
/**
* Checks if it's connected to the database
*
* @return boolean True if the database is connected, else false
*/
function isConnected() {
return $this->connected;
}
/**
* Checks if the result is valid
*
* @return boolean True if the result is valid else false
*/
function hasResult() {
return is_resource($this->_result);
}
/**
* 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 {
$text = 'query';
}
if (PHP_SAPI != 'cli') {
print ("\n({$this->configKeyName}) {$this->_queriesCnt} {$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) . " | " . h($i['query']) . " | {$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 (Configure::read() > 0) {
$out = null;
if ($error) {
trigger_error("SQL Error: {$this->error}", E_USER_WARNING);
} else {
$out = ("[Aff:{$this->affected} Num:{$this->numRows} Took:{$this->took}ms]");
}
pr(sprintf("Query: %s %s
", $sql, $out));
}
}
/**
* 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->tablePrefix . $model->table;
} elseif (isset($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) {
$id = null;
if ($fields == null) {
unset($fields, $values);
$fields = array_keys($model->data);
$values = array_values($model->data);
}
$count = count($fields);
for ($i = 0; $i < $count; $i++) {
$valueInsert[] = $this->value($values[$i], $model->getColumnType($fields[$i]), false);
}
for ($i = 0; $i < $count; $i++) {
$fieldInsert[] = $this->name($fields[$i]);
if ($fields[$i] == $model->primaryKey) {
$id = $values[$i];
}
}
$query = array(
'table' => $this->fullTableName($model),
'fields' => join(', ', $fieldInsert),
'values' => join(', ', $valueInsert)
);
if ($this->execute($this->renderStatement('create', $query))) {
if (empty($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) {
$queryData = $this->__scrubQueryData($queryData);
$null = null;
$array = array();
$linkedModels = array();
$this->__bypass = false;
$this->__booleans = array();
if ($recursive === null && isset($queryData['recursive'])) {
$recursive = $queryData['recursive'];
}
if (!is_null($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->useDbConfig == $linkModel->useDbConfig) {
if (true === $this->generateAssociationQuery($model, $linkModel, $type, $assoc, $assocData, $queryData, $external, $null)) {
$linkedModels[] = $type . '/' . $assoc;
}
}
}
}
}
$query = $this->generateAssociationQuery($model, $null, null, null, null, $queryData, false, $null);
$resultSet = $this->fetchAll($query, $model->cacheQueries, $model->alias);
if ($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) {
$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')) {
$db =& $this;
}
if (isset($db)) {
$stack = array($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 filters of corresponding model
*
* @param array $results Reference of resultset to be filtered
* @param object $model Instance of model to operate against
* @param array $filtered List of classes already filtered, to be skipped
* @return return
*/
function __filterResults(&$results, &$model, $filtered = array()) {
$filtering = array();
$count = count($results);
for ($i = 0; $i < $count; $i++) {
if (is_array($results[$i])) {
$classNames = array_keys($results[$i]);
$count2 = count($classNames);
for ($j = 0; $j < $count2; $j++) {
$className = $classNames[$j];
if ($model->alias != $className && !in_array($className, $filtered)) {
if (!in_array($className, $filtering)) {
$filtering[] = $className;
}
if (isset($model->{$className}) && is_object($model->{$className})) {
$data = $model->{$className}->afterFind(array(array($className => $results[$i][$className])), false);
}
if (isset($data[0][$className])) {
$results[$i][$className] = $data[0][$className];
}
}
}
}
}
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, $stack) {
if ($query = $this->generateAssociationQuery($model, $linkModel, $type, $association, $assocData, $queryData, $external, $resultSet)) {
if (!isset($resultSet) || !is_array($resultSet)) {
if (Configure::read() > 0) {
e('' . sprintf(__('SQL Error in model %s:', true), $model->alias) . ' ');
if (isset($this->error) && $this->error != null) {
e($this->error);
}
e('
');
}
return null;
}
$count = count($resultSet);
if ($type === 'hasMany' && empty($assocData['limit']) && !empty($assocData['foreignKey'])) {
$ins = $fetch = array();
for ($i = 0; $i < $count; $i++) {
if ($in = $this->insertQueryData('{$__cakeID__$}', $resultSet[$i], $association, $assocData, $model, $linkModel, $stack)) {
$ins[] = $in;
}
}
if (!empty($ins)) {
$fetch = $this->fetchAssociated($model, $query, $ins);
}
if (!empty($fetch) && is_array($fetch)) {
if ($recursive > 0) {
foreach ($linkModel->__associations as $type1) {
foreach ($linkModel->{$type1} as $assoc1 => $assocData1) {
$deepModel =& $linkModel->{$assoc1};
$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);
}
}
}
}
$this->__filterResults($fetch, $model);
return $this->__mergeHasMany($resultSet, $fetch, $association, $model, $linkModel, $recursive);
} elseif ($type === 'hasAndBelongsToMany') {
$ins = $fetch = array();
for ($i = 0; $i < $count; $i++) {
if ($in = $this->insertQueryData('{$__cakeID__$}', $resultSet[$i], $association, $assocData, $model, $linkModel, $stack)) {
$ins[] = $in;
}
}
if (!empty($ins)) {
if (count($ins) > 1) {
$query = str_replace('{$__cakeID__$}', '(' .join(', ', $ins) .')', $query);
$query = str_replace('= (', 'IN (', $query);
$query = str_replace('= (', 'IN (', $query);
} else {
$query = str_replace('{$__cakeID__$}',$ins[0], $query);
}
$query = str_replace(' WHERE 1 = 1', '', $query);
}
$foreignKey = $model->hasAndBelongsToMany[$association]['foreignKey'];
$joinKeys = array($foreignKey, $model->hasAndBelongsToMany[$association]['associationForeignKey']);
list($with, $habtmFields) = $model->joinModel($model->hasAndBelongsToMany[$association]['with'], $joinKeys);
$habtmFieldsCount = count($habtmFields);
$q = $this->insertQueryData($query, null, $association, $assocData, $model, $linkModel, $stack);
if ($q != false) {
$fetch = $this->fetchAll($q, $model->cacheQueries, $model->alias);
} else {
$fetch = null;
}
}
for ($i = 0; $i < $count; $i++) {
$row =& $resultSet[$i];
if ($type !== 'hasAndBelongsToMany') {
$q = $this->insertQueryData($query, $resultSet[$i], $association, $assocData, $model, $linkModel, $stack);
if ($q != false) {
$fetch = $this->fetchAll($q, $model->cacheQueries, $model->alias);
} else {
$fetch = null;
}
}
$selfJoin = false;
if ($linkModel->name === $model->name) {
$selfJoin = true;
}
if (!empty($fetch) && is_array($fetch)) {
if ($recursive > 0) {
foreach ($linkModel->__associations as $type1) {
foreach ($linkModel->{$type1} as $assoc1 => $assocData1) {
$deepModel =& $linkModel->{$assoc1};
if (($type1 === 'belongsTo') || ($deepModel->alias === $model->alias && $type === 'belongsTo') || ($deepModel->alias != $model->alias)) {
$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, $tmpStack);
}
}
}
}
if ($type == 'hasAndBelongsToMany') {
$uniqueIds = $merge = array();
foreach ($fetch as $j => $data) {
if (
(isset($data[$with]) && $data[$with][$foreignKey] === $row[$model->alias][$model->primaryKey]) &&
(!in_array($data[$with][$joinKeys[1]], $uniqueIds))
) {
$uniqueIds[] = $data[$with][$joinKeys[1]];
if ($habtmFieldsCount <= 2) {
unset($data[$with]);
}
$merge[] = $data;
}
}
if (empty($merge) && !isset($row[$association])) {
$row[$association] = $merge;
} else {
$this->__mergeAssociation($resultSet[$i], $merge, $association, $type);
}
} else {
$this->__mergeAssociation($resultSet[$i], $fetch, $association, $type, $selfJoin);
}
if (isset($resultSet[$i][$association])) {
$resultSet[$i][$association] = $linkModel->afterFind($resultSet[$i][$association]);
}
} else {
$tempArray[0][$association] = false;
$this->__mergeAssociation($resultSet[$i], $tempArray, $association, $type, $selfJoin);
}
}
}
}
/**
* A more efficient way to fetch associations. Woohoo!
*
* @param model $model Primary model object
* @param string $query Association query
* @param array $ids Array of IDs of associated records
* @return array Association results
*/
function fetchAssociated($model, $query, $ids) {
$query = str_replace('{$__cakeID__$}', join(', ', $ids), $query);
if (count($ids) > 1) {
$query = str_replace('= (', 'IN (', $query);
$query = str_replace('= (', 'IN (', $query);
}
return $this->fetchAll($query, $model->cacheQueries, $model->alias);
}
/**
* mergeHasMany - Merge the results of hasMany relations.
*
*
* @param array $resultSet Data to merge into
* @param array $merge Data to merge
* @param string $association Name of Model being Merged
* @param object $model Model being merged onto
* @param object $linkModel Model being merged
* @return void
**/
function __mergeHasMany(&$resultSet, $merge, $association, &$model, &$linkModel) {
foreach ($resultSet as $i => $value) {
$count = 0;
$merged[$association] = array();
foreach ($merge as $j => $data) {
if (isset($value[$model->alias]) && $value[$model->alias][$model->primaryKey] === $data[$association][$model->hasMany[$association]['foreignKey']]) {
if (count($data) > 1) {
$data = array_merge($data[$association], $data);
unset($data[$association]);
foreach ($data as $key => $name) {
if (is_numeric($key)) {
$data[$association][] = $name;
unset($data[$key]);
}
}
$merged[$association][] = $data;
} else {
$merged[$association][] = $data[$association];
}
}
$count++;
}
if (isset($value[$model->alias])) {
$resultSet[$i] = Set::pushDiff($resultSet[$i], $merged);
unset($merged);
}
}
}
/**
* Enter description here...
*
* @param unknown_type $data
* @param unknown_type $merge
* @param unknown_type $association
* @param unknown_type $type
* @param boolean $selfJoin
*/
function __mergeAssociation(&$data, $merge, $association, $type, $selfJoin = false) {
if (isset($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[$association])) {
if ($merge[0][$association] != null) {
$data[$association] = $merge[0][$association];
} else {
$data[$association] = array();
}
} 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;
}
}
$dataKeys = array_keys($data);
$mergeKeys = array_keys($merge[0]);
if ($mergeKeys[0] === $dataKeys[0] || $mergeKeys === $dataKeys) {
$data[$association][$association] = $merge[0][$association];
} else {
$diff = Set::diff($dataAssocTmp, $mergeAssocTmp);
$data[$association] = array_merge($merge[0][$association], $diff);
}
} elseif ($selfJoin && array_key_exists($association, $merge[0])) {
$data[$association] = array_merge($data[$association], array($association => array()));
}
}
}
} else {
if (isset($merge[0][$association]) && $merge[0][$association] === false) {
if (!isset($data[$association])) {
$data[$association] = array();
}
} else {
foreach ($merge as $i => $row) {
if (count($row) == 1) {
if (empty($data[$association]) || (isset($data[$association]) && !in_array($row[$association], $data[$association]))) {
$data[$association][] = $row[$association];
}
} else if (!empty($row)) {
$tmp = array_merge($row[$association], $row);
unset($tmp[$association]);
$data[$association][] = $tmp;
}
}
}
}
}
/**
* Generates an array representing a query or part of a query from a single model or two associated models
*
* @param Model $model
* @param Model $linkModel
* @param string $type
* @param string $association
* @param array $assocData
* @param array $queryData
* @param boolean $external
* @param array $resultSet
* @return mixed
*/
function generateAssociationQuery(&$model, &$linkModel, $type, $association = null, $assocData = array(), &$queryData, $external = false, &$resultSet) {
$queryData = $this->__scrubQueryData($queryData);
$assocData = $this->__scrubQueryData($assocData);
if (empty($queryData['fields'])) {
$queryData['fields'] = $this->fields($model, $model->alias);
} elseif (!empty($model->hasMany) && $model->recursive > -1) {
$assocFields = $this->fields($model, $model->alias, array("{$model->alias}.{$model->primaryKey}"));
$passedFields = $this->fields($model, $model->alias, $queryData['fields']);
if (count($passedFields) === 1) {
$match = strpos($passedFields[0], $assocFields[0]);
$match1 = strpos($passedFields[0], 'COUNT(');
if ($match === false && $match1 === false) {
$queryData['fields'] = array_merge($passedFields, $assocFields);
} else {
$queryData['fields'] = $passedFields;
}
} else {
$queryData['fields'] = array_merge($passedFields, $assocFields);
}
unset($assocFields, $passedFields);
}
if ($linkModel == null) {
return $this->buildStatement(
array(
'fields' => array_unique($queryData['fields']),
'table' => $this->fullTableName($model),
'alias' => $model->alias,
'limit' => $queryData['limit'],
'offset' => $queryData['offset'],
'joins' => $queryData['joins'],
'conditions' => $queryData['conditions'],
'order' => $queryData['order'],
'group' => $queryData['group']
),
$model
);
}
if ($external && !empty($assocData['finderQuery'])) {
return $assocData['finderQuery'];
}
$alias = $association;
$self = ($model->name == $linkModel->name);
$fields = array();
if ((!$external && in_array($type, array('hasOne', 'belongsTo')) && $this->__bypass === false) || $external) {
$fields = $this->fields($linkModel, $alias, $assocData['fields']);
}
if (empty($assocData['offset']) && !empty($assocData['page'])) {
$assocData['offset'] = ($assocData['page'] - 1) * $assocData['limit'];
}
$assocData['limit'] = $this->limit($assocData['limit'], $assocData['offset']);
switch ($type) {
case 'hasOne':
case 'belongsTo':
$conditions = $this->__mergeConditions(
$assocData['conditions'],
$this->getConstraint($type, $model, $linkModel, $alias, array_merge($assocData, compact('external', 'self')))
);
if (!$self && $external) {
foreach ($conditions as $key => $condition) {
if (is_numeric($key) && strpos($condition, $model->alias . '.') !== false) {
unset($conditions[$key]);
}
}
}
if ($external) {
$query = array_merge($assocData, array(
'conditions' => $conditions,
'table' => $this->fullTableName($linkModel),
'fields' => $fields,
'alias' => $alias,
'group' => null
));
$query = array_merge(array('order' => $assocData['order'], 'limit' => $assocData['limit']), $query);
} else {
$join = array(
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'type' => isset($assocData['type']) ? $assocData['type'] : 'LEFT',
'conditions' => trim($this->conditions($conditions, true, false, $model))
);
$queryData['fields'] = array_merge($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':
$assocData['fields'] = $this->fields($linkModel, $alias, $assocData['fields']);
if (!empty($assocData['foreignKey'])) {
$assocData['fields'] = array_merge($assocData['fields'], $this->fields($linkModel, $alias, array("{$alias}.{$assocData['foreignKey']}")));
}
$query = array(
'conditions' => $this->__mergeConditions($this->getConstraint('hasMany', $model, $linkModel, $alias, $assocData), $assocData['conditions']),
'fields' => array_unique($assocData['fields']),
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'order' => $assocData['order'],
'limit' => $assocData['limit'],
'group' => null
);
break;
case 'hasAndBelongsToMany':
$joinFields = array();
$joinAssoc = null;
if (isset($assocData['with']) && !empty($assocData['with'])) {
$joinKeys = array($assocData['foreignKey'], $assocData['associationForeignKey']);
list($with, $joinFields) = $model->joinModel($assocData['with'], $joinKeys);
$joinTbl = $this->fullTableName($model->{$with});
$joinAlias = $joinTbl;
if (is_array($joinFields) && !empty($joinFields)) {
$joinFields = $this->fields($model->{$with}, $model->{$with}->alias, $joinFields);
$joinAssoc = $joinAlias = $model->{$with}->alias;
} else {
$joinFields = array();
}
} else {
$joinTbl = $this->fullTableName($assocData['joinTable']);
$joinAlias = $joinTbl;
}
$query = array(
'conditions' => $assocData['conditions'],
'limit' => $assocData['limit'],
'table' => $this->fullTableName($linkModel),
'alias' => $alias,
'fields' => array_merge($this->fields($linkModel, $alias, $assocData['fields']), $joinFields),
'order' => $assocData['order'],
'group' => null,
'joins' => array(array(
'table' => $joinTbl,
'alias' => $joinAssoc,
'conditions' => $this->getConstraint('hasAndBelongsToMany', $model, $linkModel, $joinAlias, $assocData, $alias)
))
);
break;
}
if (isset($query)) {
return $this->buildStatement($query, $model);
}
return null;
}
/**
* Returns a conditions array for the constraint between two models
*
* @param string $type Association type
* @param object $model Model object
* @param array $association Association array
* @return array Conditions array defining the constraint between $model and $association
*/
function getConstraint($type, $model, $linkModel, $alias, $assoc, $alias2 = null) {
$assoc = array_merge(array('external' => false, 'self' => false), $assoc);
if (array_key_exists('foreignKey', $assoc) && empty($assoc['foreignKey'])) {
return array();
}
switch (true) {
case ($assoc['external'] && $type == 'hasOne'):
return array("{$alias}.{$assoc['foreignKey']}" => '{$__cakeID__$}');
break;
case ($assoc['external'] && $type == 'belongsTo'):
return array("{$alias}.{$linkModel->primaryKey}" => '{$__cakeForeignKey__$}');
break;
case (!$assoc['external'] && $type == 'hasOne'):
return array("{$alias}.{$assoc['foreignKey']}" => $this->identifier("{$model->alias}.{$model->primaryKey}"));
break;
case (!$assoc['external'] && $type == 'belongsTo'):
return array("{$model->alias}.{$assoc['foreignKey']}" => $this->identifier("{$alias}.{$linkModel->primaryKey}"));
break;
case ($type == 'hasMany'):
return array("{$alias}.{$assoc['foreignKey']}" => array('{$__cakeID__$}'));
break;
case ($type == 'hasAndBelongsToMany'):
return array(
array("{$alias}.{$assoc['foreignKey']}" => '{$__cakeID__$}'),
array("{$alias}.{$assoc['associationForeignKey']}" => $this->identifier("{$alias2}.{$linkModel->primaryKey}"))
);
break;
}
return array();
}
/**
* Builds and generates a JOIN statement from an array. Handles final clean-up before conversion.
*
* @param array $join An array defining a JOIN statement in a query
* @return string An SQL JOIN statement to be used in a query
* @see DboSource::renderJoinStatement()
* @see DboSource::buildStatement()
*/
function buildJoinStatement($join) {
$data = array_merge(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'])) {
$data['conditions'] = trim($this->conditions($data['conditions'], true, false));
}
return $this->renderJoinStatement($data);
}
/**
* Builds and generates an SQL statement from an array. Handles final clean-up before conversion.
*
* @param array $query An array defining an SQL query
* @param object $model The model object which initiated the query
* @return string An executable SQL statement
* @see DboSource::renderStatement()
*/
function buildStatement($query, $model) {
$query = array_merge(array('offset' => null, 'joins' => array()), $query);
if (!empty($query['joins'])) {
$count = count($query['joins']);
for ($i = 0; $i < $count; $i++) {
if (is_array($query['joins'][$i])) {
$query['joins'][$i] = $this->buildJoinStatement($query['joins'][$i]);
}
}
}
return $this->renderStatement('select', array(
'conditions' => $this->conditions($query['conditions'], true, true, $model),
'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']),
'group' => $this->group($query['group'])
));
}
/**
* Renders a final SQL JOIN statement
*
* @param array $data
* @return string
*/
function renderJoinStatement($data) {
extract($data);
return trim("{$type} JOIN {$table} {$alias} ON ({$conditions})");
}
/**
* Renders a final SQL statement by putting together the component parts in the correct order
*
* @param string $type
* @param array $data
* @return string
*/
function renderStatement($type, $data) {
extract($data);
$aliases = null;
switch (strtolower($type)) {
case 'select':
return "SELECT {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order} {$limit}";
break;
case 'create':
return "INSERT INTO {$table} ({$fields}) VALUES ({$values})";
break;
case 'update':
if (!empty($alias)) {
$aliases = "{$this->alias}{$alias} {$joins} ";
}
return "UPDATE {$table} {$aliases}SET {$fields} {$conditions}";
break;
case 'delete':
if (!empty($alias)) {
$aliases = "{$this->alias}{$alias} {$joins} ";
}
return "DELETE {$alias} FROM {$table} {$aliases}{$conditions}";
break;
case 'schema':
foreach (array('columns', 'indexes') as $var) {
if (is_array(${$var})) {
${$var} = "\t" . join(",\n\t", array_filter(${$var}));
}
}
if (trim($indexes) != '') {
$columns .= ',';
}
return "CREATE TABLE {$table} (\n{$columns}{$indexes});";
break;
case 'alter':
break;
}
}
/**
* Merges a mixed set of string/array conditions
*
* @return array
*/
function __mergeConditions($query, $assoc) {
if (empty($assoc)) {
return $query;
}
if (is_array($query)) {
return array_merge((array)$assoc, $query);
}
if (!empty($query)) {
$query = array($query);
if (is_array($assoc)) {
$query = array_merge($query, $assoc);
} else {
$query[] = $assoc;
}
return $query;
}
return $assoc;
}
/**
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
* For databases that do not support aliases in UPDATE queries.
*
* @param Model $model
* @param array $fields
* @param array $values
* @param mixed $conditions
* @return boolean Success
*/
function update(&$model, $fields = array(), $values = null, $conditions = null) {
if ($values == null) {
$combined = $fields;
} else {
$combined = array_combine($fields, $values);
}
$fields = join(', ', $this->_prepareUpdateFields($model, $combined, empty($conditions)));
$alias = $joins = null;
$table = $this->fullTableName($model);
$conditions = $this->_matchRecords($model, $conditions);
if ($conditions === false) {
return false;
}
$query = compact('table', 'alias', 'joins', 'fields', 'conditions');
if (!$this->execute($this->renderStatement('update', $query))) {
$model->onError();
return false;
}
return true;
}
/**
* Quotes and prepares fields and values for an SQL UPDATE statement
*
* @param Model $model
* @param array $fields
* @param boolean $quoteValues If values should be quoted, or treated as SQL snippets
* @param boolean $alias Include the model alias in the field name
* @return array Fields and values, quoted and preparted
* @access protected
*/
function _prepareUpdateFields(&$model, $fields, $quoteValues = true, $alias = false) {
$quotedAlias = $this->startQuote . $model->alias . $this->endQuote;
foreach ($fields as $field => $value) {
if ($alias && strpos($field, '.') === false) {
$quoted = $model->escapeField($field);
} elseif (!$alias && strpos($field, '.') !== false) {
$quoted = $this->name(str_replace($quotedAlias . '.', '', str_replace(
$model->alias . '.', '', $field
)));
} else {
$quoted = $this->name($field);
}
if ($value === null) {
$updates[] = $quoted . ' = NULL';
continue;
}
$update = $quoted . ' = ';
if ($quoteValues) {
$update .= $this->value($value, $model->getColumnType($field), false);
} elseif (!$alias) {
$update .= str_replace($quotedAlias . '.', '', str_replace(
$model->alias . '.', '', $value
));
} else {
$update .= $value;
}
$updates[] = $update;
}
return $updates;
}
/**
* Generates and executes an SQL DELETE statement.
* For databases that do not support aliases in UPDATE queries.
*
* @param Model $model
* @param mixed $conditions
* @return boolean Success
*/
function delete(&$model, $conditions = null) {
$alias = $joins = null;
$table = $this->fullTableName($model);
$conditions = $this->_matchRecords($model, $conditions);
if ($conditions === false) {
return false;
}
if ($this->execute($this->renderStatement('delete', compact('alias', 'table', 'joins', 'conditions'))) === false) {
$model->onError();
return false;
}
return true;
}
/**
* Gets a list of record IDs for the given conditions. Used for multi-record updates and deletes
* in databases that do not support aliases in UPDATE/DELETE queries.
*
* @param Model $model
* @param mixed $conditions
* @return array List of record IDs
* @access protected
*/
function _matchRecords(&$model, $conditions = null) {
if ($conditions === true) {
$conditions = $this->conditions(true);
} elseif ($conditions === null) {
$conditions = $this->conditions($this->defaultConditions($model, $conditions, false), true, true, $model);
} else {
$idList = $model->find('all', array(
'fields' => "{$model->alias}.{$model->primaryKey}",
'conditions' => $conditions
));
if (empty($idList)) {
return false;
}
$conditions = $this->conditions(array(
$model->primaryKey => Set::extract($idList, "{n}.{$model->alias}.{$model->primaryKey}")
));
}
return $conditions;
}
/**
* Returns an array of SQL JOIN fragments from a model's associations
*
* @param object $model
* @return array
*/
function _getJoins($model) {
$join = array();
$joins = array_merge($model->getAssociated('hasOne'), $model->getAssociated('belongsTo'));
foreach ($joins as $assoc) {
if (isset($model->{$assoc}) && $model->useDbConfig == $model->{$assoc}->useDbConfig) {
$assocData = $model->getAssociated($assoc);
$join[] = $this->buildJoinStatement(array(
'table' => $this->fullTableName($model->{$assoc}),
'alias' => $assoc,
'type' => isset($assocData['type']) ? $assocData['type'] : 'LEFT',
'conditions' => trim($this->conditions(
$this->getConstraint($assocData['association'], $model, $model->{$assoc}, $assoc, $assocData),
true, false, $model
))
));
}
}
return $join;
}
/**
* Returns the an SQL calculation, i.e. COUNT() or MAX()
*
* @param model $model
* @param string $func Lowercase name of SQL function, i.e. 'count' or 'max'
* @param array $params Function parameters (any values must be quoted manually)
* @return string An SQL calculation function
* @access public
*/
function calculate(&$model, $func, $params = array()) {
$params = (array)$params;
switch (strtolower($func)) {
case 'count':
if (!isset($params[0])) {
$params[0] = '*';
}
if (!isset($params[1])) {
$params[1] = 'count';
}
return 'COUNT(' . $this->name($params[0]) . ') AS ' . $this->name($params[1]);
case 'max':
case 'min':
if (!isset($params[1])) {
$params[1] = $params[0];
}
return strtoupper($func) . '(' . $this->name($params[0]) . ') AS ' . $this->name($params[1]);
break;
}
}
/**
* Deletes all the records in a table and resets the count of the auto-incrementing
* primary key, where applicable.
*
* @param mixed $table A string or model class representing the table to be truncated
* @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
* @access public
*/
function truncate($table) {
return $this->execute('TRUNCATE TABLE ' . $this->fullTableName($table));
}
/**
* Begin a transaction
*
* @param model $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions,
* or a transaction has not started).
*/
function begin(&$model) {
if (parent::begin($model) && $this->execute($this->_commands['begin'])) {
$this->_transactionStarted = true;
return true;
}
return false;
}
/**
* Commit a transaction
*
* @param model $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions,
* or a transaction has not started).
*/
function commit(&$model) {
if (parent::commit($model) && $this->execute($this->_commands['commit'])) {
$this->_transactionStarted = false;
return true;
}
return false;
}
/**
* Rollback a transaction
*
* @param model $model
* @return boolean True on success, false on fail
* (i.e. if the database/model does not support transactions,
* or a transaction has not started).
*/
function rollback(&$model) {
if (parent::rollback($model) && $this->execute($this->_commands['rollback'])) {
$this->_transactionStarted = false;
return true;
}
return false;
}
/**
* Creates a default set of conditions from the model if $conditions is null/empty.
*
* @param object $model
* @param mixed $conditions
* @param boolean $useAlias Use model aliases rather than table names when generating conditions
* @return mixed
*/
function defaultConditions(&$model, $conditions, $useAlias = true) {
if (!empty($conditions)) {
return $conditions;
}
if (!$model->exists()) {
return false;
}
$alias = $model->alias;
if (!$useAlias) {
$alias = $this->fullTableName($model, false);
}
return array("{$alias}.{$model->primaryKey}" => $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->alias;
}
if (!strpos('.', $key)) {
return $this->name($model->alias) . '.' . $this->name($key);
}
return $key;
}
/**
* Private helper method to remove query metadata in given data array.
*
* @param array $data
* @return array
*/
function __scrubQueryData($data) {
foreach (array('conditions', 'fields', 'joins', 'order', 'limit', 'offset', 'group') as $key) {
if (!isset($data[$key]) || empty($data[$key])) {
$data[$key] = array();
}
}
return $data;
}
/**
* 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 = $model->alias;
}
if (empty($fields)) {
$fields = array_keys($model->schema());
} elseif (!is_array($fields)) {
$fields = String::tokenize($fields);
}
$fields = array_values(array_filter($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(str_replace('DISTINCT', '', $fields[$i]));
}
$dot = strpos($fields[$i], '.');
if ($dot === false) {
$prefix = !(
strpos($fields[$i], ' ') !== false ||
strpos($fields[$i], '(') !== false
);
$fields[$i] = $this->name(($prefix ? '' : '') . $alias . '.' . $fields[$i]);
} else {
$value = array();
$comma = strpos($fields[$i], ',');
if ($comma === false) {
$build = explode('.', $fields[$i]);
if (!Set::numeric($build)) {
$fields[$i] = $this->name($build[0] . '.' . $build[1]);
}
$comma = String::tokenize($fields[$i]);
foreach ($comma as $string) {
if (preg_match('/^[0-9]+\.[0-9]+$/', $string)) {
$value[] = $string;
} else {
$build = explode('.', $string);
$value[] = $this->name(trim($build[0]) . '.' . trim($build[1]));
}
}
$fields[$i] = implode(', ', $value);
}
}
$fields[$i] = $prepend . $fields[$i];
} elseif (preg_match('/\(([\.\w]+)\)/', $fields[$i], $field)) {
if (isset($field[1])) {
if (strpos($field[1], '.') === false) {
$field[1] = $this->name($alias . '.' . $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 array_unique($fields);
}
/**
* Creates a WHERE clause by parsing given conditions data.
*
* @param mixed $conditions Array or string of conditions
* @param boolean $quoteValues If true, values should be quoted
* @param boolean $where If true, "WHERE " will be prepended to the return value
* @param Model $model A reference to the Model instance making the query
* @return string SQL fragment
*/
function conditions($conditions, $quoteValues = true, $where = true, $model = null) {
$clause = $out = '';
if ($where) {
$clause = ' WHERE ';
}
if (is_array($conditions) && !empty($conditions)) {
$out = $this->conditionKeysToString($conditions, $quoteValues, $model);
if (empty($out)) {
return $clause . ' 1 = 1';
}
return $clause . join(' AND ', $out);
}
if (empty($conditions) || trim($conditions) == '' || $conditions === true) {
return $clause . '1 = 1';
}
$clauses = '/^WHERE\\x20|^GROUP\\x20BY\\x20|^HAVING\\x20|^ORDER\\x20BY\\x20/i';
if (preg_match($clauses, $conditions, $match)) {
$clause = '';
}
if (trim($conditions) == '') {
$conditions = ' 1 = 1';
} else {
$conditions = $this->__quoteFields($conditions);
}
return $clause . $conditions;
}
/**
* Creates a WHERE clause by parsing given conditions array. Used by DboSource::conditions().
*
* @param array $conditions Array or string of conditions
* @param boolean $quoteValues If true, values should be quoted
* @param Model $model A reference to the Model instance making the query
* @return string SQL fragment
*/
function conditionKeysToString($conditions, $quoteValues = true, $model = null) {
$c = 0;
$out = array();
$data = $columnType = null;
$bool = array('and', 'or', 'not', 'and not', 'or not', 'xor', '||', '&&');
foreach ($conditions as $key => $value) {
$join = ' AND ';
$not = null;
if (is_array($value)) {
$valueInsert = (
!empty($value) &&
(substr_count($key, '?') == count($value) || substr_count($key, ':') == count($value))
);
}
if (is_numeric($key) && empty($value)) {
continue;
} elseif (is_numeric($key) && is_string($value)) {
$out[] = $not . $this->__quoteFields($value);
} elseif ((is_numeric($key) && is_array($value)) || in_array(strtolower(trim($key)), $bool)) {
if (in_array(strtolower(trim($key)), $bool)) {
$join = ' ' . strtoupper($key) . ' ';
} else {
$key = $join;
}
$value = $this->conditionKeysToString($value, $quoteValues, $model);
if (strpos($join, 'NOT') !== false) {
if (strtoupper(trim($key)) == 'NOT') {
$key = 'AND ' . trim($key);
}
$not = 'NOT ';
}
if (empty($value[1])) {
if ($not) {
$out[] = $not . '(' . $value[0] . ')';
} else {
$out[] = $value[0] ;
}
} else {
$out[] = '(' . $not . '(' . join(') ' . strtoupper($key) . ' (', $value) . '))';
}
} else {
if (is_object($value) && isset($value->type)) {
if ($value->type == 'identifier') {
$data .= $this->name($key) . ' = ' . $this->name($value->value);
} elseif ($value->type == 'expression') {
if (is_numeric($key)) {
$data .= $value->value;
} else {
$data .= $this->name($key) . ' = ' . $value->value;
}
}
} elseif (is_array($value) && !empty($value) && !$valueInsert) {
$keys = array_keys($value);
if (array_keys($value) === array_values(array_keys($value))) {
$count = count($value);
if ($count === 1) {
$data = $this->name($key) . ' = (';
} else {
$data = $this->name($key) . ' IN (';
}
if ($quoteValues || strpos($value[0], '-!') !== 0) {
if (is_object($model)) {
$columnType = $model->getColumnType($key);
}
$data .= join(', ', $this->value($value, $columnType));
}
$data .= ')';
} else {
$ret = $this->conditionKeysToString($value, $quoteValues, $model);
if (count($ret) > 1) {
$data = '(' . join(') AND (', $ret) . ')';
} elseif (isset($ret[0])) {
$data = $ret[0];
}
}
} elseif (is_numeric($key) && !empty($value)) {
$data = $this->__quoteFields($value);
} else {
$data = $this->__parseKey($model, trim($key), $value);
}
if ($data != null) {
if (preg_match('/^\(\(\((.+)\)\)\)$/', $data)) {
$data = substr($data, 1, strlen($data) - 2);
}
$out[] = $data;
$data = null;
}
}
$c++;
}
return $out;
}
/**
* Extracts a Model.field identifier and an SQL condition operator from a string, formats
* and inserts values, and composes them into an SQL snippet.
*
* @param Model $model Model object initiating the query
* @param string $key An SQL key snippet containing a field and optional SQL operator
* @param mixed $value The value(s) to be inserted in the string
* @return string
* @access private
*/
function __parseKey($model, $key, $value) {
$operatorMatch = '/^((' . join(')|(', $this->__sqlOps);
$operatorMatch .= '\\x20)|<[>=]?(?![^>]+>)\\x20?|[>=!]{1,3}(?!<)\\x20?)/is';
$bound = (strpos($key, '?') !== false || (is_array($value) && strpos($key, ':') !== false));
if (!strpos($key, ' ')) {
$operator = '=';
} else {
list($key, $operator) = explode(' ', trim($key), 2);
if (!preg_match($operatorMatch, trim($operator)) && strpos($operator, ' ') !== false) {
$key = $key . ' ' . $operator;
$split = strrpos($key, ' ');
$operator = substr($key, $split);
$key = substr($key, 0, $split);
}
}
$type = (is_object($model) ? $model->getColumnType($key) : null);
$null = ($value === null || (is_array($value) && empty($value)));
if (strtolower($operator) === 'not') {
$data = $this->conditionKeysToString(
array($operator => array($key => $value)), true, $model
);
return $data[0];
}
$value = $this->value($value, $type);
$key = (strpos($key, '(') !== false || strpos($key, ')') !== false) ?
$this->__quoteFields($key) :
$key = $this->name($key);
if ($bound) {
return String::insert($key . ' ' . trim($operator), $value);
}
if (!preg_match($operatorMatch, trim($operator))) {
$operator .= ' =';
}
$operator = trim($operator);
if (is_array($value)) {
$value = join(', ', $value);
switch ($operator) {
case '=':
$operator = 'IN';
break;
case '!=':
case '<>':
$operator = 'NOT IN';
break;
}
$value = "({$value})";
} elseif ($null) {
switch ($operator) {
case '=':
$operator = 'IS';
break;
case '!=':
case '<>':
$operator = 'IS NOT';
break;
}
}
return "{$key} {$operator} {$value}";
}
/**
* Quotes Model.fields
*
* @param string $conditions
* @return string or false if no match
* @access private
*/
function __quoteFields($conditions) {
$start = $end = null;
$original = $conditions;
if (!empty($this->startQuote)) {
$start = preg_quote($this->startQuote);
}
if (!empty($this->endQuote)) {
$end = preg_quote($this->endQuote);
}
$conditions = str_replace(array($start, $end), '', $conditions);
preg_match_all('/(?:[\'\"][^\'\"\\\]*(?:\\\.[^\'\"\\\]*)*[\'\"])|([a-z0-9_' . $start . $end . ']*\\.[a-z0-9_' . $start . $end . ']*)/i', $conditions, $replace, PREG_PATTERN_ORDER);
if (isset($replace['1']['0'])) {
$pregCount = count($replace['1']);
for ($i = 0; $i < $pregCount; $i++) {
if (!empty($replace['1'][$i]) && !is_numeric($replace['1'][$i])) {
$conditions = preg_replace('/\b' . preg_quote($replace['1'][$i]) . '\b/', $this->name($replace['1'][$i]), $conditions);
}
}
return $conditions;
}
return $original;
}
/**
* Returns a limit statement in the correct format for the particular database.
*
* @param integer $limit Limit of results returned
* @param integer $offset Offset from which to start results
* @return string SQL limit/offset statement
*/
function limit($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 = array_map('trim', explode(',', $keys));
}
if (is_array($keys)) {
$keys = array_filter($keys);
}
if (empty($keys) || (is_array($keys) && count($keys) && isset($keys[0]) && empty($keys[0]))) {
return '';
}
if (is_array($keys)) {
$keys = (Set::countDim($keys) > 1) ? array_map(array(&$this, 'order'), $keys) : $keys;
foreach ($keys as $key => $value) {
if (is_numeric($key)) {
$key = $value = ltrim(str_replace('ORDER BY ', '', $this->order($value)));
$value = (!preg_match('/\\x20ASC|\\x20DESC/i', $key) ? ' ' . $direction : '');
} else {
$value = ' ' . $value;
}
if (!preg_match('/^.+\\(.*\\)/', $key) && !strpos($key, ',')) {
if (preg_match('/\\x20ASC|\\x20DESC/i', $key, $dir)) {
$dir = $dir[0];
$key = preg_replace('/\\x20ASC|\\x20DESC/i', '', $key);
} else {
$dir = '';
}
$key = trim($key);
if (!preg_match('/\s/', $key)) {
$key = $this->name($key);
}
$key .= ' ' . trim($dir);
}
$order[] = $this->order($key . $value);
}
return ' ORDER BY ' . trim(str_replace('ORDER BY', '', join(',', $order)));
}
$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; $i++) {
if (!is_numeric($result[0][$i])) {
$keys = preg_replace('/' . $result[0][$i] . '/', $this->name($result[0][$i]), $keys);
}
}
$result = ' ORDER BY ' . $keys;
return $result . (!preg_match('/\\x20ASC|\\x20DESC/i', $keys) ? ' ' . $direction : '');
} elseif (preg_match('/(\\x20ASC|\\x20DESC)/i', $keys, $match)) {
$direction = $match[1];
return ' ORDER BY ' . preg_replace('/' . $match[1] . '/', '', $keys) . $direction;
}
return ' ORDER BY ' . $keys . ' ' . $direction;
}
/**
* Create a GROUP BY SQL clause
*
* @param string $group Group By Condition
* @return mixed string condition or null
*/
function group($group) {
if ($group) {
if (is_array($group)) {
$group = join(', ', $group);
}
return ' GROUP BY ' . $this->__quoteFields($group);
}
return null;
}
/**
* 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 (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);
$table = $this->fullTableName($Model);
$where = $sql ? "WHERE {$sql}" : 'WHERE 1 = 1';
$id = $Model->primaryKey;
$out = $this->fetchRow("SELECT COUNT({$id}) {$this->alias}count FROM {$table} {$where}");
if (is_array($out)) {
return $out[0]['count'];
}
return false;
}
/**
* Gets the length of a database-native column description, or null if no length
*
* @param string $real Real database-layer column type (i.e. "varchar(255)")
* @return mixed An integer or string representing the length of the column
*/
function length($real) {
if (!preg_match_all('/([\w\s]+)(?:\((\d+)(?:,(\d+))?\))?(\sunsigned)?(\szerofill)?/', $real, $result)) {
trigger_error(__('FIXME: Can\'t parse field: ' . $real, true), E_USER_WARNING);
$col = str_replace(array(')', 'unsigned'), '', $real);
$limit = null;
if (strpos($col, '(') !== false) {
list($col, $limit) = explode('(', $col);
}
if ($limit != null) {
return intval($limit);
}
return null;
}
$types = array(
'int' => 1, 'tinyint' => 1, 'smallint' => 1, 'mediumint' => 1, 'integer' => 1, 'bigint' => 1
);
list($real, $type, $length, $offset, $sign, $zerofill) = $result;
$typeArr = $type;
$type = $type[0];
$length = $length[0];
$offset = $offset[0];
$isFloat = in_array($type, array('dec', 'decimal', 'float', 'numeric', 'double'));
if ($isFloat && $offset) {
return $length.','.$offset;
}
if (($real[0] == $type) && (count($real) == 1)) {
return null;
}
if (isset($types[$type])) {
$length += $types[$type];
if (!empty($sign)) {
$length--;
}
} elseif (in_array($type, array('enum', 'set'))) {
$length = 0;
foreach ($typeArr as $key => $enumValue) {
if ($key == 0) {
continue;
}
$tmpLength = strlen($enumValue);
if ($tmpLength > $length) {
$length = $tmpLength;
}
}
}
return intval($length);
}
/**
* 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 {
return !empty($data);
}
}
/**
* Inserts multiple values into a table
*
* @param string $table
* @param string $fields
* @param array $values
* @access protected
*/
function insertMulti($table, $fields, $values) {
$table = $this->fullTableName($table);
if (is_array($fields)) {
$fields = join(', ', array_map(array(&$this, 'name'), $fields));
}
$count = count($values);
for ($x = 0; $x < $count; $x++) {
$this->query("INSERT INTO {$table} ({$fields}) VALUES {$values[$x]}");
}
}
/**
* Returns an array of the indexes in given datasource name.
*
* @param string $model Name of model to inspect
* @return array Fields in table. Keys are column and unique
*/
function index($model) {
return false;
}
/**
* Generate a database-native schema for the given Schema object
*
* @param object $schema An instance of a subclass of CakeSchema
* @param string $tableName Optional. If specified only the table name given will be generated.
* Otherwise, all tables defined in the schema are generated.
* @return string
*/
function createSchema($schema, $tableName = null) {
if (!is_a($schema, 'CakeSchema')) {
trigger_error(__('Invalid schema object', true), E_USER_WARNING);
return null;
}
$out = '';
foreach ($schema->tables as $curTable => $columns) {
if (!$tableName || $tableName == $curTable) {
$cols = $colList = $indexes = array();
$primary = null;
$table = $this->fullTableName($curTable);
foreach ($columns as $name => $col) {
if (is_string($col)) {
$col = array('type' => $col);
}
if (isset($col['key']) && $col['key'] == 'primary') {
$primary = $name;
}
if ($name !== 'indexes') {
$col['name'] = $name;
if (!isset($col['type'])) {
$col['type'] = 'string';
}
$cols[] = $this->buildColumn($col);
} else {
$indexes = array_merge($indexes, $this->buildIndex($col, $table));
}
}
if (empty($indexes) && !empty($primary)) {
$col = array('PRIMARY' => array('column' => $primary, 'unique' => 1));
$indexes = array_merge($indexes, $this->buildIndex($col, $table));
}
$columns = $cols;
$out .= $this->renderStatement('schema', compact('table', 'columns', 'indexes')) . "\n\n";
}
}
return $out;
}
/**
* Generate a alter syntax from CakeSchema::compare()
*
* @param unknown_type $schema
* @return unknown
*/
function alterSchema($compare, $table = null) {
return false;
}
/**
* Generate a "drop table" statement for the given Schema object
*
* @param object $schema An instance of a subclass of CakeSchema
* @param string $table Optional. If specified only the table name given will be generated.
* Otherwise, all tables defined in the schema are generated.
* @return string
*/
function dropSchema($schema, $table = null) {
if (!is_a($schema, 'CakeSchema')) {
trigger_error(__('Invalid schema object', true), E_USER_WARNING);
return null;
}
$out = '';
foreach ($schema->tables as $curTable => $columns) {
if (!$table || $table == $curTable) {
$out .= 'DROP TABLE ' . $this->fullTableName($curTable) . ";\n";
}
}
return $out;
}
/**
* Generate a database-native column schema string
*
* @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
* where options can be 'default', 'length', or 'key'.
* @return string
*/
function buildColumn($column) {
$name = $type = null;
extract(array_merge(array('null' => true), $column));
if (empty($name) || empty($type)) {
trigger_error('Column name or type not defined in schema', E_USER_WARNING);
return null;
}
if (!isset($this->columns[$type])) {
trigger_error("Column type {$type} does not exist", E_USER_WARNING);
return null;
}
$real = $this->columns[$type];
$out = $this->name($name) . ' ' . $real['name'];
if (isset($real['limit']) || isset($real['length']) || isset($column['limit']) || isset($column['length'])) {
if (isset($column['length'])) {
$length = $column['length'];
} elseif (isset($column['limit'])) {
$length = $column['limit'];
} elseif (isset($real['length'])) {
$length = $real['length'];
} else {
$length = $real['limit'];
}
$out .= '(' . $length . ')';
}
if (($column['type'] == 'integer' || $column['type'] == 'float' ) && isset($column['default']) && $column['default'] === '') {
$column['default'] = null;
}
if (isset($column['key']) && $column['key'] == 'primary' && $type == 'integer') {
$out .= ' ' . $this->columns['primary_key']['name'];
} elseif (isset($column['key']) && $column['key'] == 'primary') {
$out .= ' NOT NULL';
} elseif (isset($column['default']) && isset($column['null']) && $column['null'] == false) {
$out .= ' DEFAULT ' . $this->value($column['default'], $type) . ' NOT NULL';
} elseif (isset($column['default'])) {
$out .= ' DEFAULT ' . $this->value($column['default'], $type);
} elseif (isset($column['null']) && $column['null'] == true) {
$out .= ' DEFAULT NULL';
} elseif (isset($column['null']) && $column['null'] == false) {
$out .= ' NOT NULL';
}
return $out;
}
/**
* Format indexes for create table
*
* @param array $indexes
* @param string $table
* @return array
*/
function buildIndex($indexes, $table = null) {
$join = array();
foreach ($indexes as $name => $value) {
$out = '';
if ($name == 'PRIMARY') {
$out .= 'PRIMARY ';
$name = null;
} else {
if (!empty($value['unique'])) {
$out .= 'UNIQUE ';
}
}
if (is_array($value['column'])) {
$out .= 'KEY '. $name .' (' . join(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
} else {
$out .= 'KEY '. $name .' (' . $this->name($value['column']) . ')';
}
$join[] = $out;
}
return $join;
}
/**
* Guesses the data type of an array
*
* @param string $value
* @return void
* @access public
*/
function introspectType($value) {
if (!is_array($value)) {
if ($value === true || $value === false) {
return 'boolean';
}
if (is_float($value) && floatval($value) === $value) {
return 'float';
}
if (is_int($value) && intval($value) === $value) {
return 'integer';
}
if (is_string($value) && strlen($value) > 255) {
return 'text';
}
return 'string';
}
$isAllFloat = $isAllInt = true;
$containsFloat = $containsInt = $containsString = false;
foreach ($value as $key => $valElement) {
$valElement = trim($valElement);
if (!is_float($valElement) && !preg_match('/^[\d]+\.[\d]+$/', $valElement)) {
$isAllFloat = false;
} else {
$containsFloat = true;
continue;
}
if (!is_int($valElement) && !preg_match('/^[\d]+$/', $valElement)) {
$isAllInt = false;
} else {
$containsInt = true;
continue;
}
$containsString = true;
}
if ($isAllFloat) {
return 'float';
}
if ($isAllInt) {
return 'integer';
}
if ($containsInt && !$containsString) {
return 'integer';
}
return 'string';
}
}
?>