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doctrine-dbal
Commit 1473df19 authored by zYne's avatar zYne
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new DQL WHERE parser

parent b83321e5
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Showing with 86 additions and 162 deletions
lib/Doctrine/Query/From.php
View file @ 1473df19
......@@ -73,13 +73,14 @@ class Doctrine_Query_From extends Doctrine_Query_Part
foreach (Doctrine_Tokenizer::bracketExplode($part, ',') as $reference) {
$reference = trim($reference);
$e = explode('.', $reference);
$e = explode(' ', $reference);
$e2 = explode('.', $e[0]);
if ($operator) {
$reference = array_shift($e) . $operator . implode('.', $e);
$e[0] = array_shift($e2) . $operator . implode('.', $e2);
}
$table = $this->query->load($reference);
$table = $this->query->load(implode(' ', $e));
}
$operator = ($last == 'INNER') ? ':' : '.';
......
lib/Doctrine/Query/JoinCondition.php
View file @ 1473df19
......@@ -58,7 +58,7 @@ class Doctrine_Query_JoinCondition extends Doctrine_Query_Condition
if (substr($trimmed, 0, 4) == 'FROM' || substr($trimmed, 0, 6) == 'SELECT') {
// subquery found
$q = new Doctrine_Query();
$q = $this->query->createSubquery();
$value = '(' . $q->parseQuery($trimmed)->getQuery() . ')';
} elseif (substr($trimmed, 0, 4) == 'SQL:') {
$value = '(' . substr($trimmed, 4) . ')';
......
lib/Doctrine/Query/Where.php
View file @ 1473df19
......@@ -32,107 +32,65 @@ Doctrine::autoload('Doctrine_Query_Condition');
*/
class Doctrine_Query_Where extends Doctrine_Query_Condition
{
/**
* load
* returns the parsed query part
*
* @param string $where
* @return string
*/
public function load($where)
{
$where = trim($where);
$where = Doctrine_Tokenizer::bracketTrim(trim($where));
$conn = $this->query->getConnection();
$terms = Doctrine_Tokenizer::sqlExplode($where);
$e = Doctrine_Tokenizer::sqlExplode($where);
if (count($e) > 1) {
$tmp = $e[0] . ' ' . $e[1];
if (substr($tmp, 0, 6) == 'EXISTS') {
if (count($terms) > 1) {
if (substr($where, 0, 6) == 'EXISTS') {
return $this->parseExists($where, true);
} elseif (substr($where, 0, 10) == 'NOT EXISTS') {
return $this->parseExists($where, false);
}
}
if (count($e) < 3) {
$e = Doctrine_Tokenizer::sqlExplode($where, array('=', '<', '>', '!='));
if (count($terms) < 3) {
$terms = Doctrine_Tokenizer::sqlExplode($where, array('=', '<', '<>', '>', '!='));
}
$r = array_shift($e);
$a = explode('.', $r);
if (count($a) > 1) {
$field = array_pop($a);
$count = count($e);
$slice = array_slice($e, -1, 1);
$value = implode('', $slice);
$operator = trim(substr($where, strlen($r), -strlen($value)));
$reference = implode('.', $a);
$count = count($a);
$pos = strpos($field, '(');
if (count($terms) > 1) {
$first = array_shift($terms);
$value = array_pop($terms);
$operator = trim(substr($where, strlen($first), -strlen($value)));
$table = null;
$field = null;
if ($pos !== false) {
$func = substr($field, 0, $pos);
$value = trim(substr($field, ($pos + 1), -1));
$values = Doctrine_Query::sqlExplode($value, ',');
if (strpos($first, "'") === false && strpos($first, '(') === false) {
// normal field reference found
$a = explode('.', $first);
$field = array_pop($a);
$reference = implode('.', $a);
$table = $this->query->load($reference, false);
$field = $table->getColumnName($field);
array_pop($a);
$reference2 = implode('.', $a);
$alias = $this->query->getTableAlias($reference2);
$map = $this->query->load($reference, false);
$stack = $this->query->getRelationStack();
$relation = end($stack);
$alias = $this->query->getTableAlias($reference);
$table = $map['table'];
$stack = $this->query->getTableStack();
$first = $conn->quoteIdentifier($alias)
. '.'
. $conn->quoteIdentifier($table->getColumnName($field));
} else {
$first = $this->query->parseClause($first);
}
$sql = $first . ' ' . $operator . ' ' . $this->parseValue($value, $table, $field);
switch ($func) {
case 'contains':
case 'regexp':
case 'like':
$operator = $this->getOperator($func);
return $sql;
} else {
if (empty($relation)) {
throw new Doctrine_Query_Exception('DQL functions contains/regexp/like can only be used for fields of related components');
}
$where = array();
foreach ($values as $value) {
$where[] = $conn->quoteIdentifier($alias . '.' . $relation->getLocal())
. ' IN (SELECT ' . $conn->quoteIdentifier($relation->getForeign())
. ' FROM ' . $conn->quoteIdentifier($relation->getTable()->getTableName())
. ' WHERE ' . $field . $operator . $value . ')';
}
$where = implode(' AND ', $where);
break;
default:
throw new Doctrine_Query_Exception('Unknown DQL function: '.$func);
}
} else {
$map = $this->query->load($reference, false);
$alias = $this->query->getTableAlias($reference);
$table = $map['table'];
$field = $table->getColumnName($field);
// check if value is enumerated value
$enumIndex = $table->enumIndex($field, trim($value, "'"));
public function parseValue($value, Doctrine_Table $table = null, $field = null)
{
if (substr($value, 0, 1) == '(') {
// trim brackets
$trimmed = Doctrine_Tokenizer::bracketTrim($value);
if (substr($trimmed, 0, 4) == 'FROM' || substr($trimmed, 0, 6) == 'SELECT') {
if (substr($trimmed, 0, 4) == 'FROM' ||
substr($trimmed, 0, 6) == 'SELECT') {
// subquery found
$q = new Doctrine_Query();
$value = '(' . $q->isSubquery(true)->parseQuery($trimmed)->getQuery() . ')';
......@@ -144,8 +102,13 @@ class Doctrine_Query_Where extends Doctrine_Query_Condition
$e = Doctrine_Tokenizer::sqlExplode($trimmed, ',');
$value = array();
$index = false;
foreach ($e as $part) {
if (isset($table) && isset($field)) {
$index = $table->enumIndex($field, trim($part, "'"));
}
if ($index !== false) {
$value[] = $index;
......@@ -157,41 +120,22 @@ class Doctrine_Query_Where extends Doctrine_Query_Condition
}
} elseif(substr($value, 0, 1) == ':' || $value === '?') {
// placeholder found
if ($table->getTypeOf($field) == 'enum') {
if (isset($table) && isset($field) && $table->getTypeOf($field) == 'enum') {
$this->query->addEnumParam($value, $table, $field);
} else {
$this->query->addEnumParam($value, null, null);
}
} else {
if ($enumIndex !== false) {
$value = $enumIndex;
} else {
$value = $this->parseLiteralValue($value);
}
}
// check if value is enumerated value
$enumIndex = $table->enumIndex($field, trim($value, "'"));
switch ($operator) {
case '<':
case '>':
case '=':
case '!=':
if ($enumIndex !== false) {
$value = $enumIndex;
}
default:
if ($this->query->getType() === Doctrine_Query::SELECT) {
$fieldname = $alias ? $conn->quoteIdentifier($alias . '.' . $field) : $field;
} else {
$fieldname = $field;
}
$where = $fieldname . ' '
. $operator . ' ' . $value;
}
$value = $this->parseLiteralValue($value);
}
}
return $where;
return $value;
}
/**
* parses an EXISTS expression
......@@ -207,32 +151,11 @@ class Doctrine_Query_Where extends Doctrine_Query_Condition
$pos = strpos($where, '(');
if ($pos == false) {
throw new Doctrine_Query_Exception("Unknown expression, expected '('");
throw new Doctrine_Query_Exception('Unknown expression, expected a subquery with () -marks');
}
$sub = Doctrine_Tokenizer::bracketTrim(substr($where, $pos));
return $operator . ' (' . $this->query->createSubquery()->parseQuery($sub, false)->getQuery() . ')';
}
/**
* getOperator
*
* @param string $func
* @return string
*/
public function getOperator($func)
{
switch ($func) {
case 'contains':
$operator = ' = ';
break;
case 'regexp':
$operator = $this->query->getConnection()->getRegexpOperator();
break;
case 'like':
$operator = ' LIKE ';
break;
}
return $operator;
}
}
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