/**
* Append set clause.
* @param array $values Expressions of the set clause
* @param bool $forceExist If true, $values must have at least one value
* @return string
* @throws SquidException
*/
public static function appendSet($values, $forceExist = false)
{
if ($forceExist && !$values) {
throw new SquidException('SET clause must be present for this type of command!');
}
return Assembly::append('SET', $values, ', ');
}
/**
* @inheritdoc
*/
protected function generate()
{
$command = 'SELECT ' . ($this->getPart(CmdSelect::PART_DISTINCT) ? 'DISTINCT ' : '') . Assembly::appendDirectly($this->getPart(CmdSelect::PART_COLUMNS) ?: array('*'), ',');
$union = $this->getPart(CmdSelect::PART_UNION);
$from = $this->getPart(CmdSelect::PART_FROM);
if (!$from && !$union) {
return $command;
}
$lock = $this->getPart(CmdSelect::PART_LOCK);
$command .= Assembly::append('FROM', $from, ' ') . Assembly::appendWhere($this->getPart(CmdSelect::PART_WHERE)) . Assembly::append('GROUP BY', $this->getPart(CmdSelect::PART_GROUP_BY)) . ($this->getPart(CmdSelect::PART_WITH_ROLL_UP) ? 'WITH ROLLUP ' : '') . Assembly::append('HAVING', $this->getPart(CmdSelect::PART_HAVING)) . Assembly::append('ORDER BY', $this->getPart(CmdSelect::PART_ORDER_BY)) . Assembly::append('LIMIT', $this->getPart(CmdSelect::PART_LIMIT));
if ($union) {
$union = implode(' ', $union);
$command = "({$command}) {$union}";
}
return $command . ($lock ? "{$lock} " : '');
}
/**
* Combine all the parts into one sql.
* @return string Created query.
*/
protected function generate()
{
return parent::generate() . Assembly::append('ON DUPLICATE KEY UPDATE', $this->getPart(CmdUpsert::$PART_SET), ', ');
}
/**
* Combined all the parts into one sql.
* @return string Created query.
*/
protected function generate()
{
if (!$this->getPart(CmdInsert::PART_INTO)) {
throw new SquidException('Target table must be defined for Insert command. ' . 'into() was not called or called with empty value');
}
$command = 'INSERT ' . ($this->getPart(CmdInsert::PART_IGNORE) ? 'IGNORE ' : '') . 'INTO `' . $this->getPart(CmdInsert::PART_INTO) . '` ';
if ($this->fields) {
$command .= '(`' . implode('`,`', $this->fields) . '`) ';
}
$as = $this->getPart(CmdInsert::PART_AS);
if ($as) {
return $command . $as;
}
return $command . Assembly::append('VALUES', $this->getPart(CmdInsert::PART_VALUES), ', ');
}