public function canParseTokens(SQLTokenIterator $tokens, &$checkFlags = 0)
{
$previousIndex = $tokens->getIndex();
if (!$tokens->seekTokenNum(SqlToken::T_IN(), TokenIterator::NEXT, [SqlToken::T_NOT()])) {
$tokens->seekIndex($previousIndex);
return false;
}
$result = is_int($tokens->isTokenText('('));
$tokens->seekIndex($previousIndex);
return $result;
}
public function canParseTokens(SQLTokenIterator $tokens)
{
$indexBefore = $tokens->getIndex();
$tokens->seekIndex($tokens->getExclusiveTokenIndex());
if (!in_array((int) (string) $tokens->getCurrentTokenNumber(), [T_STRING, SqlToken::T_DATABASE]) && !$tokens->getCurrentTokenNumber() instanceof Token) {
$tokens->seekIndex($indexBefore);
return false;
}
$paranthesisExist = is_int($tokens->isTokenText('('));
$tokens->seekIndex($indexBefore);
return $paranthesisExist;
}
public function canParseTokens(SQLTokenIterator $tokens, &$skipChecks = 0)
{
$previousIndex = $tokens->getIndex();
$result = is_int($tokens->isTokenNum(SqlToken::T_LIKE(), TokenIterator::NEXT, [SqlToken::T_NOT()])) || is_int($tokens->isTokenNum(SqlToken::T_LIKE(), TokenIterator::CURRENT, [SqlToken::T_NOT()]));
$tokens->seekIndex($previousIndex);
return $result;
}
public function convertSqlToJob(SQLTokenIterator $tokens)
{
$parameterCondition = new ParameterConditionJob();
try {
$parameter = Parameter::getByValue(strtolower($tokens->getExclusiveTokenString()));
if (is_null($parameter)) {
throw new MalformedSqlException("Invalid parameter value given for parameter condition!");
}
$parameterCondition->setParameter($parameter);
$tokens->seekIndex($tokens->getExclusiveTokenIndex());
} catch (MalformedSqlException $exception) {
throw new MalformedSqlException($exception->getMessage(), $tokens);
} catch (\Exception $exception) {
throw new ErrorException("Tried to parse parameter-condition when token-iterator does not point to valid parameter!");
}
switch ($parameter) {
case Parameter::SEPARATOR:
if (!$this->valueParser->canParseTokens($tokens)) {
throw new MalformedSqlException("Missing valid value after parameter-condition {$parameterCondition->getParameter()->getValue()}!", $tokens);
}
$parameterCondition->setValue($this->valueParser->convertSqlToJob($tokens));
break;
}
return $parameterCondition;
}
public function convertSqlToJob(SQLTokenIterator $tokens)
{
$parts = array();
do {
$tokens->seekIndex($tokens->getExclusiveTokenIndex());
$part = $tokens->getCurrentTokenString();
if ($part[0] === '`' && $part[strlen($part) - 1] === '`') {
$part = substr($part, 1, strlen($part) - 2);
}
$parts[] = $part;
} while ($tokens->seekTokenText(".") && !$tokens->isTokenText('*'));
return TableSpecifier::factory(implode(".", $parts));
}
public function convertSqlToJob(SQLTokenIterator $tokens)
{
$columnDefinition = new ColumnDefinitionJob();
$tokens->seekTokens([T_STRING, T_CONSTANT_ENCAPSED_STRING]);
if (!$tokens->isTokens([T_STRING, T_CONSTANT_ENCAPSED_STRING], TokenIterator::CURRENT)) {
throw new MalformedSqlException("Missing name for column!", $tokens);
}
$name = $tokens->getCurrentTokenString();
if ($name[0] === '`' && $name[strlen($name) - 1] === '`') {
$name = substr($name, 1, strlen($name) - 2);
}
if ($name[0] === '"' && $name[strlen($name) - 1] === '"') {
$name = substr($name, 1, strlen($name) - 2);
}
if ($name[0] === "'" && $name[strlen($name) - 1] === "'") {
$name = substr($name, 1, strlen($name) - 2);
}
$columnDefinition->setName($name);
# this makes sure that the next token is valid data-type
$dataTypeString = strtoupper($tokens->getExclusiveTokenString());
$dataType = DataType::factory($dataTypeString);
$columnDefinition->setDataType($dataType);
$tokens->seekIndex($tokens->getExclusiveTokenIndex());
# data-type-length
if ($tokens->seekTokenText('(')) {
if ($dataType === DataType::ENUM() || $dataType === DataType::SET()) {
do {
if (!$this->valueParser->canParseTokens($tokens)) {
throw new MalformedSqlException("Invalid value in ENUM!", $tokens);
}
$columnDefinition->addEnumValue($this->valueParser->convertSqlToJob($tokens));
} while ($tokens->seekTokenText(','));
} else {
if (!$tokens->seekTokenNum(T_NUM_STRING)) {
throw new MalformedSqlException("Missing number for length of data-type!", $tokens);
}
$columnDefinition->setDataTypeLength((int) $tokens->getCurrentTokenString());
if ($tokens->seekTokenText(',')) {
if (!$tokens->seekTokenNum(T_NUM_STRING)) {
throw new MalformedSqlException("Missing second number for length of data-type!", $tokens);
}
$columnDefinition->setDataTypeSecondLength((int) $tokens->getCurrentTokenString());
}
}
if (!$tokens->seekTokenText(')')) {
throw new MalformedSqlException("Missing end-parenthesis for length of data-type!", $tokens);
}
}
while (true) {
switch (true) {
case $tokens->seekTokenNum(SqlToken::T_NOT()):
if (!$tokens->seekTokenNum(SqlToken::T_NULL())) {
throw new MalformedSqlException("Missing T_NULL after T_NOT in column-definition!", $tokens);
}
$columnDefinition->setIsNullable(false);
break;
case $tokens->seekTokenNum(SqlToken::T_NULL()):
$columnDefinition->setIsNullable(true);
break;
case $tokens->seekTokenNum(SqlToken::T_DEFAULT()):
if (!$this->valueParser->canParseTokens($tokens)) {
throw new MalformedSqlException("Missing valid default value for column definition!", $tokens);
}
$beforeIndex = $tokens->getIndex();
$defaultValue = $this->valueParser->convertSqlToJob($tokens);
$afterIndex = $tokens->getIndex();
$defaultSqlRepresentation = "";
for ($index = $beforeIndex + 1; $index <= $afterIndex; $index++) {
$defaultSqlRepresentation .= $tokens->getTokenArray()[$index][1];
}
$columnDefinition->setDefaultValue($defaultValue);
break;
case $tokens->seekTokenNum(SqlToken::T_UNIQUE()):
$tokens->seekTokenNum(SqlToken::T_KEY());
$columnDefinition->setIsUnique(true);
break;
case $tokens->seekTokenNum(SqlToken::T_PRIMARY()):
$tokens->seekTokenNum(SqlToken::T_KEY());
$columnDefinition->setIsPrimaryKey(true);
break;
case $tokens->seekTokenNum(SqlToken::T_UNSIGNED()):
$columnDefinition->setIsUnsigned(true);
break;
case $tokens->seekTokenNum(SqlToken::T_COMMENT()):
if (!$tokens->seekTokenNum(T_CONSTANT_ENCAPSED_STRING)) {
throw new MalformedSqlException("Missing encapsed string for comment-declaration column-definition!", $tokens);
}
$columnDefinition->setComment($tokens->getCurrentTokenString());
break;
case $tokens->seekTokenNum(SqlToken::T_AUTO_INCREMENT()):
$columnDefinition->setAutoIncrement(true);
break;
case $tokens->seekTokenNum(SqlToken::T_CHARACTER(), TokenIterator::NEXT, [SqlToken::T_DEFAULT()]):
if (!$tokens->seekTokenNum(SqlToken::T_SET())) {
throw new MalformedSqlException("MIssing SET after CHARACTER keyword!", $tokens);
}
case $tokens->seekTokenNum(SqlToken::T_CHARSET(), TokenIterator::NEXT, [SqlToken::T_DEFAULT()]):
$tokens->seekTokenText('=');
if (!$tokens->seekTokenNum(T_CONSTANT_ENCAPSED_STRING) && !$tokens->seekTokenNum(T_STRING)) {
throw new MalformedSqlException("Missing string for CHARACTER SET!", $tokens);
}
$columnDefinition->setCharacterSet($tokens->getCurrentTokenString());
break;
case $tokens->seekTokenNum(SqlToken::T_COLLATE()):
$tokens->seekTokenText('=');
if (!$tokens->seekTokenNum(T_CONSTANT_ENCAPSED_STRING) && !$tokens->seekTokenNum(T_STRING)) {
throw new MalformedSqlException("Missing string for COLLATE!", $tokens);
}
$columnDefinition->setCollate($tokens->getCurrentTokenString());
break;
case $tokens->seekTokenNum(SqlToken::T_ON()):
switch (true) {
case $tokens->seekTokenNum(SqlToken::T_UPDATE()):
switch (true) {
case $this->valueParser->canParseTokens($tokens):
$columnDefinition->setOnUpdate($this->valueParser->convertSqlToJob($tokens));
break;
default:
throw new MalformedSqlException("Invalid value for ON UPDATE!", $tokens);
}
break;
case $tokens->seekTokenNum(SqlToken::T_DELETE()):
switch (true) {
case $this->valueParser->canParseTokens($tokens):
$columnDefinition->setOnDelete($this->valueParser->convertSqlToJob($tokens));
break;
default:
throw new MalformedSqlException("Invalid value for ON UPDATE!", $tokens);
}
break;
default:
throw new MalformedSqlException("Only UPDATE and DELETE allowed for ON trigger!", $tokens);
}
break;
case is_int($tokens->isTokenText(')')):
case is_int($tokens->isTokenText(',')):
break 2;
default:
break 2;
}
}
return $columnDefinition;
}