smsq/vendor/FluentPDO/SelectQuery.php
2017-11-15 05:24:35 +01:00

195 lines
5.2 KiB
PHP

<?php
/**
* SELECT query builder
*
* @method SelectQuery select(string $column) add one or more columns in SELECT to query
* @method SelectQuery leftJoin(string $statement) add LEFT JOIN to query
* ($statement can be 'table' name only or 'table:' means back reference)
* @method SelectQuery innerJoin(string $statement) add INNER JOIN to query
* ($statement can be 'table' name only or 'table:' means back reference)
* @method SelectQuery groupBy(string $column) add GROUP BY to query
* @method SelectQuery having(string $column) add HAVING query
* @method SelectQuery orderBy(string $column) add ORDER BY to query
* @method SelectQuery limit(int $limit) add LIMIT to query
* @method SelectQuery offset(int $offset) add OFFSET to query
*/
class SelectQuery extends CommonQuery implements Countable
{
/** @var mixed */
private $fromTable;
/** @var mixed */
private $fromAlias;
/** @var boolean */
private $convertTypes = false;
/**
* SelectQuery constructor.
*
* @param FluentPDO $fpdo
* @param $from
*/
function __construct(FluentPDO $fpdo, $from) {
$clauses = array(
'SELECT' => ', ',
'FROM' => null,
'JOIN' => array($this, 'getClauseJoin'),
'WHERE' => ' AND ',
'GROUP BY' => ',',
'HAVING' => ' AND ',
'ORDER BY' => ', ',
'LIMIT' => null,
'OFFSET' => null,
"\n--" => "\n--",
);
parent::__construct($fpdo, $clauses);
// initialize statements
$fromParts = explode(' ', $from);
$this->fromTable = reset($fromParts);
$this->fromAlias = end($fromParts);
$this->statements['FROM'] = $from;
$this->statements['SELECT'][] = $this->fromAlias . '.*';
$this->joins[] = $this->fromAlias;
if(isset($fpdo->convertTypes) && $fpdo->convertTypes){
$this->convertTypes = true;
}
}
/** Return table name from FROM clause
*
* @internal
*/
public function getFromTable() {
return $this->fromTable;
}
/** Return table alias from FROM clause
*
* @internal
*/
public function getFromAlias() {
return $this->fromAlias;
}
/**
* Returns a single column
*
* @param int $columnNumber
*
* @return string
*/
public function fetchColumn($columnNumber = 0) {
if (($s = $this->execute()) !== false) {
return $s->fetchColumn($columnNumber);
}
return $s;
}
/**
* Fetch first row or column
*
* @param string $column column name or empty string for the whole row
*
* @return mixed string, array or false if there is no row
*/
public function fetch($column = '') {
$s = $this->execute();
if ($s === false) {
return false;
}
$row = $s->fetch();
if($this->convertTypes){
$row = FluentUtils::convertToNativeTypes($s,$row);
}
if ($row && $column != '') {
if (is_object($row)) {
return $row->{$column};
} else {
return $row[$column];
}
}
return $row;
}
/**
* Fetch pairs
*
* @param $key
* @param $value
* @param $object
*
* @return array of fetched rows as pairs
*/
public function fetchPairs($key, $value, $object = false) {
if (($s = $this->select(null)->select("$key, $value")->asObject($object)->execute()) !== false) {
return $s->fetchAll(PDO::FETCH_KEY_PAIR);
}
return $s;
}
/** Fetch all row
*
* @param string $index specify index column
* @param string $selectOnly select columns which could be fetched
*
* @return array of fetched rows
*/
public function fetchAll($index = '', $selectOnly = '') {
if ($selectOnly) {
$this->select(null)->select($index . ', ' . $selectOnly);
}
if ($index) {
$data = array();
foreach ($this as $row) {
if (is_object($row)) {
$data[$row->{$index}] = $row;
} else {
$data[$row[$index]] = $row;
}
}
return $data;
} else {
if (($s = $this->execute()) !== false) {
if($this->convertTypes){
return FluentUtils::convertToNativeTypes($s,$s->fetchAll());
}else{
return $s->fetchAll();
}
}
return $s;
}
}
/**
* Countable interface doesn't break current \FluentPDO select query
*
* @return int
*/
public function count() {
$fpdo = clone $this;
return (int)$fpdo->select(null)->select('COUNT(*)')->fetchColumn();
}
public function getIterator() {
if($this->convertTypes){
return new ArrayIterator($this->fetchAll());
}else{
return $this->execute();
}
}
}