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<?php |
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namespace Kir\MySQL\Builder; |
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use Kir\MySQL\Builder\Traits\GroupByBuilder; |
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use Kir\MySQL\Builder\Traits\HavingBuilder; |
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use Kir\MySQL\Builder\Traits\OffsetBuilder; |
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use Kir\MySQL\Builder\Traits\OrderByBuilder; |
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use Kir\MySQL\Builder\Traits\TableBuilder; |
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use Kir\MySQL\Builder\Traits\JoinBuilder; |
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use Kir\MySQL\Builder\Traits\LimitBuilder; |
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use Kir\MySQL\Builder\Traits\TableNameBuilder; |
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use Kir\MySQL\Builder\Traits\UnionBuilder; |
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use Kir\MySQL\Builder\Traits\WhereBuilder; |
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class Select extends Statement { |
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use TableNameBuilder; |
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use TableBuilder; |
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use JoinBuilder; |
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use WhereBuilder; |
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use HavingBuilder; |
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use GroupByBuilder; |
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use OrderByBuilder; |
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use LimitBuilder; |
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use OffsetBuilder; |
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use UnionBuilder; |
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/** @var string[] */ |
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private $fields = array(); |
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/** @var bool */ |
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private $calcFoundRows = false; |
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/** @var bool */ |
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private $forUpdate = false; |
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/** @var bool */ |
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private $distinct = false; |
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/** |
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* @param bool $distinct |
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* @return $this |
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*/ |
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public function distinct($distinct = true) { |
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$this->distinct = $distinct; |
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return $this; |
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} |
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/** |
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* @param string $expression |
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* @param string $alias |
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* @return $this |
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*/ |
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public function field($expression, $alias = null) { |
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if (is_object($expression)) { |
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$expression = (string) $expression; |
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$expression = trim($expression); |
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$expression = rtrim($expression, ';'); |
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$expression = trim($expression); |
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$lines = explode("\n", $expression); |
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$lines = array_map(function($line) { return "\t\t{$line}"; }, $lines); |
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$expression = join("\n", $lines); |
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$expression = sprintf("(\n%s\n\t)", $expression); |
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} |
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if ($alias === null) { |
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$this->fields[] = $expression; |
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} else { |
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$this->fields[$alias] = $expression; |
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} |
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return $this; |
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} |
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/** |
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* @param array $fields |
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* @return $this |
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*/ |
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public function fields(array $fields) { |
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foreach ($fields as $alias => $expression) { |
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$this->field($expression, $alias); |
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} |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getFields() { |
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return $this->fields; |
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} |
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/** |
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* @param bool $enabled |
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* @return $this |
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*/ |
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public function forUpdate($enabled = true) { |
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$this->forUpdate = $enabled; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getCalcFoundRows() { |
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return $this->calcFoundRows; |
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} |
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/** |
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* @param bool $calcFoundRows |
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* @throws \Exception |
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* @return $this |
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*/ |
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public function setCalcFoundRows($calcFoundRows = true) { |
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if (ini_get("mysql.trace_mode")) { |
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throw new \Exception('This function cant operate with mysql.trace_mode is set.'); |
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} |
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$this->calcFoundRows = $calcFoundRows; |
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return $this; |
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} |
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/** |
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* @param string $alias |
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* @param string $tableName |
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* @return $this |
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*/ |
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public function from($alias, $tableName = null) { |
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$this->addTable($alias, $tableName); |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() { |
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$query = "SELECT"; |
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if ($this->calcFoundRows) { |
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$query .= " SQL_CALC_FOUND_ROWS"; |
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} |
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if ($this->distinct) { |
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$query .= " DISTINCT"; |
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} |
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$query .= "\n"; |
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$query = $this->buildFields($query); |
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if (count($this->getTables())) { |
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$query .= "FROM\n"; |
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} |
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$query = $this->buildTables($query); |
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$query = $this->buildJoins($query); |
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$query = $this->buildWhereConditions($query); |
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$query = $this->buildGroups($query); |
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$query = $this->buildHavingConditions($query); |
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$query = $this->buildOrder($query); |
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$query = $this->buildLimit($query); |
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$query = $this->buildOffset($query); |
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$query = $this->buildUnions($query); |
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$query = $this->buildForUpdate($query); |
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return $query; |
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} |
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/** |
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* @param string $query |
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* @return string |
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*/ |
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private function buildFields($query) { |
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$fields = array(); |
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if (count($this->fields)) { |
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foreach ($this->fields as $alias => $expression) { |
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if (is_numeric($alias)) { |
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$fields[] = "\t{$expression}"; |
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} else { |
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$fields[] = "\t{$expression} AS `{$alias}`"; |
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} |
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} |
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} else { |
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$fields[] = "\t*"; |
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} |
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return $query.join(",\n", $fields)."\n"; |
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} |
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/** |
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* @param string $query |
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* @return string |
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*/ |
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private function buildForUpdate($query) { |
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if ($this->forUpdate) { |
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$query .= "FOR UPDATE\n"; |
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} |
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return $query; |
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} |
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} |
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rkrx /
php-mysql-query-builder
