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mirror of synced 2024-12-14 07:06:04 +03:00

DQL-to-SQL lazy conversion

This commit is contained in:
zYne 2007-06-18 22:30:15 +00:00
parent 4346c9f818
commit a770f83d45

View File

@ -71,7 +71,6 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
protected $_dqlParts = array(
'select' => array(),
'distinct' => false,
'forUpdate' => false,
'from' => array(),
'set' => array(),
@ -99,6 +98,17 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
{
return new Doctrine_Query($conn);
}
public function reset()
{
$this->_enumParams = array();
$this->_pendingJoinConditions = array();
$this->pendingSubqueries = array();
$this->pendingFields = array();
$this->_neededTables = array();
$this->subqueryAliases = array();
$this->needsSubquery = false;
$this->isLimitSubqueryUsed = false;
}
/**
* setOption
*
@ -133,10 +143,10 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function addEnumParam($key, $table = null, $column = null)
{
$array = (isset($table) || isset($column)) ? array($table, $column) : array();
$array = (isset($table) || isset($column)) ? array($table, $column) : array();
if ($key === '?') {
$this->_enumParams[] = $array;
if ($key === '?') {
$this->_enumParams[] = $array;
} else {
$this->_enumParams[$key] = $array;
}
@ -254,32 +264,18 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
public function parseQueryPart($queryPartName, $queryPart, $append = false)
{
// sanity check
if ($queryPart === '' || $queryPart === null) {
// sanity check
if ($queryPart === '' || $queryPart === null) {
throw new Doctrine_Query_Exception('Empty ' . $queryPartName . ' part given.');
}
}
// add query part to the dql part array
if ($append) {
$this->_dqlParts[$queryPartName][] = $queryPart;
} else {
if ($append) {
$this->_dqlParts[$queryPartName][] = $queryPart;
} else {
$this->_dqlParts[$queryPartName] = array($queryPart);
}
}
// check for cache
if ( ! $this->_options['resultSetCache']) {
$parser = $this->getParser($queryPartName);
$sql = $parser->parse($queryPart);
if (isset($sql)) {
if ($append) {
$this->addQueryPart($queryPartName, $sql);
} else {
$this->setQueryPart($queryPartName, $sql);
}
}
}
return $this;
}
@ -293,8 +289,8 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function getDql()
{
$q = '';
$q .= ( ! empty($this->_dqlParts['select']))? 'SELECT ' . implode(', ', $this->_dqlParts['select']) : '';
$q = '';
$q .= ( ! empty($this->_dqlParts['select']))? 'SELECT ' . implode(', ', $this->_dqlParts['select']) : '';
$q .= ( ! empty($this->_dqlParts['from']))? ' FROM ' . implode(' ', $this->_dqlParts['from']) : '';
$q .= ( ! empty($this->_dqlParts['where']))? ' WHERE ' . implode(' AND ', $this->_dqlParts['where']) : '';
$q .= ( ! empty($this->_dqlParts['groupby']))? ' GROUP BY ' . implode(', ', $this->_dqlParts['groupby']) : '';
@ -478,7 +474,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function processPendingSubqueries()
{
foreach ($this->pendingSubqueries as $value) {
foreach ($this->pendingSubqueries as $value) {
list($dql, $alias) = $value;
$sql = $this->createSubquery()->parseQuery($dql, false)->getQuery();
@ -504,7 +500,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function processPendingAggregates()
{
// iterate trhough all aggregates
// iterate trhough all aggregates
foreach ($this->pendingAggregates as $aggregate) {
list ($expression, $components, $alias) = $aggregate;
@ -592,7 +588,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function buildFromPart()
{
$q = '';
$q = '';
foreach ($this->parts['from'] as $k => $part) {
if ($k === 0) {
$q .= $part;
@ -638,17 +634,37 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function getQuery($params = array())
{
// check if parser cache is on
if ($this->_cache) {
foreach ($this->_dqlParts as $queryPartName => $queryParts) {
if (is_array($queryParts) && ! empty($queryParts)) {
// check if parser cache is on
foreach ($queryParts as $queryPart) {
$this->getParser($queryPartName)->parse($queryPart);
$this->_aliasMap = array();
$this->pendingAggregates = array();
$this->aggregateMap = array();
$this->reset();
foreach ($this->_dqlParts as $queryPartName => $queryParts) {
$this->parts[$queryPartName] = array();
if (is_array($queryParts) && ! empty($queryParts)) {
foreach ($queryParts as $queryPart) {
$parser = $this->getParser($queryPartName);
$sql = $parser->parse($queryPart);
if (isset($sql)) {
if ($queryPartName == 'limit' ||
$queryPartName == 'offset') {
$this->setQueryPart($queryPartName, $sql);
} else {
$this->addQueryPart($queryPartName, $sql);
}
}
}
}
}
}
if (empty($this->parts['from'])) {
return false;
}
@ -687,7 +703,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
$modifyLimit = true;
if ( ! empty($this->parts["limit"]) || ! empty($this->parts["offset"])) {
if ( ! empty($this->parts['limit']) || ! empty($this->parts['offset'])) {
if ($needsSubQuery) {
$subquery = $this->getLimitSubquery();
@ -922,8 +938,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
break;
case 'update':
$this->type = self::UPDATE;
$k = 'FROM';
$k = 'from';
case 'from':
$this->parseQueryPart($k, $part);
break;
@ -1110,7 +1125,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
*/
public function loadRoot($name, $componentAlias)
{
// get the connection for the component
// get the connection for the component
$this->_conn = Doctrine_Manager::getInstance()
->getConnectionForComponent($name);
@ -1132,11 +1147,11 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
return $table;
}
/**
* count
* fetches the count of the query
*
* This method executes the main query without all the
/**
* count
* fetches the count of the query
*
* This method executes the main query without all the
* selected fields, ORDER BY part, LIMIT part and OFFSET part.
*
* Example:
@ -1151,19 +1166,22 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
* WHERE p.phonenumber = '123 123'
*
* @param array $params an array of prepared statement parameters
* @return integer the count of this query
* @return integer the count of this query
*/
public function count($params = array())
public function count($params = array())
{
// initialize temporary variables
$where = $this->parts['where'];
$having = $this->parts['having'];
$map = reset($this->_aliasMap);
$componentAlias = key($this->_aliasMap);
$table = $map['table'];
$this->getQuery();
// initialize temporary variables
$where = $this->parts['where'];
$having = $this->parts['having'];
$map = reset($this->_aliasMap);
$componentAlias = key($this->_aliasMap);
$table = $map['table'];
// build the query base
$q = 'SELECT COUNT(DISTINCT ' . $this->getTableAlias($componentAlias)
$q = 'SELECT COUNT(DISTINCT ' . $this->getTableAlias($componentAlias)
. '.' . $table->getIdentifier()
. ') FROM ' . $this->buildFromPart();
@ -1175,7 +1193,7 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
}
// append conditions
$q .= ( ! empty($where)) ? ' WHERE ' . implode(' AND ', $where) : '';
$q .= ( ! empty($having)) ? ' HAVING ' . implode(' AND ', $having): '';
$q .= ( ! empty($having)) ? ' HAVING ' . implode(' AND ', $having): '';
if ( ! is_array($params)) {
$params = array($params);
@ -1183,8 +1201,8 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
// append parameters
$params = array_merge($this->_params, $params);
return (int) $this->getConnection()->fetchOne($q, $params);
}
return (int) $this->getConnection()->fetchOne($q, $params);
}
/**
* query