/**
* Parses a query string.
*
* @return ParserResult
*/
public function parse()
{
// Parse & build AST
$AST = $this->QueryLanguage();
// Activate semantical checks after this point. Process all deferred checks in pipeline
$this->_processDeferredExpressionsStack($AST);
if ($customWalkers = $this->_query->getHint(Query::HINT_CUSTOM_TREE_WALKERS)) {
$this->_customTreeWalkers = $customWalkers;
}
// Run any custom tree walkers over the AST
if ($this->_customTreeWalkers) {
$treeWalkerChain = new TreeWalkerChain($this->_query, $this->_parserResult, $this->_queryComponents);
foreach ($this->_customTreeWalkers as $walker) {
$treeWalkerChain->addTreeWalker($walker);
}
if ($AST instanceof AST\SelectStatement) {
$treeWalkerChain->walkSelectStatement($AST);
} else {
if ($AST instanceof AST\UpdateStatement) {
$treeWalkerChain->walkUpdateStatement($AST);
} else {
$treeWalkerChain->walkDeleteStatement($AST);
}
}
}
if ($this->_customOutputWalker) {
$outputWalker = new $this->_customOutputWalker($this->_query, $this->_parserResult, $this->_queryComponents);
} else {
$outputWalker = new SqlWalker($this->_query, $this->_parserResult, $this->_queryComponents);
}
// Assign an SQL executor to the parser result
$this->_parserResult->setSqlExecutor($outputWalker->getExecutor($AST));
return $this->_parserResult;
}
/**
* Parses a query string.
*
* @return ParserResult
*/
public function parse()
{
$AST = $this->getAST();
$this->fixIdentificationVariableOrder($AST);
$this->assertSelectEntityRootAliasRequirement();
if (($customWalkers = $this->_query->getHint(Query::HINT_CUSTOM_TREE_WALKERS)) !== false) {
$this->_customTreeWalkers = $customWalkers;
}
if (($customOutputWalker = $this->_query->getHint(Query::HINT_CUSTOM_OUTPUT_WALKER)) !== false) {
$this->_customOutputWalker = $customOutputWalker;
}
// Run any custom tree walkers over the AST
if ($this->_customTreeWalkers) {
$treeWalkerChain = new TreeWalkerChain($this->_query, $this->_parserResult, $this->_queryComponents);
foreach ($this->_customTreeWalkers as $walker) {
$treeWalkerChain->addTreeWalker($walker);
}
if ($AST instanceof AST\SelectStatement) {
$treeWalkerChain->walkSelectStatement($AST);
} else {
if ($AST instanceof AST\UpdateStatement) {
$treeWalkerChain->walkUpdateStatement($AST);
} else {
$treeWalkerChain->walkDeleteStatement($AST);
}
}
}
if ($this->_customOutputWalker) {
$outputWalker = new $this->_customOutputWalker($this->_query, $this->_parserResult, $this->_queryComponents);
} else {
$outputWalker = new SqlWalker($this->_query, $this->_parserResult, $this->_queryComponents);
}
// Assign an SQL executor to the parser result
$this->_parserResult->setSqlExecutor($outputWalker->getExecutor($AST));
return $this->_parserResult;
}
/**
* Parses a query string.
*
* @return ParserResult
*/
public function parse()
{
$AST = $this->getAST();
// Fix order of identification variables.
// They have to appear in the select clause in the same order as the
// declarations (from ... x join ... y join ... z ...) appear in the query
// as the hydration process relies on that order for proper operation.
if (count($this->_identVariableExpressions) > 1) {
foreach ($this->_queryComponents as $dqlAlias => $qComp) {
if (isset($this->_identVariableExpressions[$dqlAlias])) {
$expr = $this->_identVariableExpressions[$dqlAlias];
$key = array_search($expr, $AST->selectClause->selectExpressions);
unset($AST->selectClause->selectExpressions[$key]);
$AST->selectClause->selectExpressions[] = $expr;
}
}
}
if (($customWalkers = $this->_query->getHint(Query::HINT_CUSTOM_TREE_WALKERS)) !== false) {
$this->_customTreeWalkers = $customWalkers;
}
if (($customOutputWalker = $this->_query->getHint(Query::HINT_CUSTOM_OUTPUT_WALKER)) !== false) {
$this->_customOutputWalker = $customOutputWalker;
}
// Run any custom tree walkers over the AST
if ($this->_customTreeWalkers) {
$treeWalkerChain = new TreeWalkerChain($this->_query, $this->_parserResult, $this->_queryComponents);
foreach ($this->_customTreeWalkers as $walker) {
$treeWalkerChain->addTreeWalker($walker);
}
if ($AST instanceof AST\SelectStatement) {
$treeWalkerChain->walkSelectStatement($AST);
} else {
if ($AST instanceof AST\UpdateStatement) {
$treeWalkerChain->walkUpdateStatement($AST);
} else {
$treeWalkerChain->walkDeleteStatement($AST);
}
}
}
if ($this->_customOutputWalker) {
$outputWalker = new $this->_customOutputWalker($this->_query, $this->_parserResult, $this->_queryComponents);
} else {
$outputWalker = new SqlWalker($this->_query, $this->_parserResult, $this->_queryComponents);
}
// Assign an SQL executor to the parser result
$this->_parserResult->setSqlExecutor($outputWalker->getExecutor($AST));
return $this->_parserResult;
}