<?php
/**
* *
* * please don't remove this comment block
* *
* * @author phptricks Team - Mohammad Anzawi
* * @author_uri https://phptricks.org
* * @uri https://github.com/anzawi/php-database-class
* * @version 5.0.0
* * @licence MIT -> https://opensource.org/licenses/MIT
* * @package PHPtricks\Orm
*
*/
namespace PHPtricks\Orm\Collection;
use PHPtricks\Orm\Database;
/**
* Class Collection
*
* @package PHPtricks\Orm\Collection
*/
class Collection extends Database
{
/**
* Collection constructor.
*
* @param $data
* @param null $connection
*/
public function __construct($data, $connection = null)
{
if (isset($connection)) {
$this->_table = $data['table'];
$this->_results = $data['results'];
$this->_idColumn = $data['id'];
$this->_pdo = $connection->_pdo;
} else {
if (is_array($data)) {
$this->_results = isset($data['results']) ? $data['results']
: $data;
} else {
$this->_results = $data;
}
}
}
/**
* @return mixed|null
*/
public function first()
{
return isset($this->_results[0]) ? $this->_results[0] : null;
}
/**
* @param int $count
*
* @return array|mixed|null
*/
public function last($count = 0)
{
$reverse = array_reverse($this->results());
if ( ! $count) {
return isset($reverse[0]) ? $reverse[0] : null;
}
$lastRecords = [];
$j = 0;
for ($i = 0; $i < $count; $i++) {
$lastRecords[$j] = $reverse[$i];
$j++;
}
return $lastRecords;
}
/**
* @param callable $callback
*
* @return $this
*/
public function each(callable $callback)
{
foreach ($this->results() as $key => $value) {
$callback($value, $key);
}
return $this;
}
/**
* @param callable|null $callback
*
* @return $this
*/
public function filter(callable $callback = null)
{
if ($callback) {
return new static(array_filter($this->results(), $callback));
}
// exclude null and empty
return new static(array_filter($this->results()));
}
/**
* @param callable $callback
*
* @return $this
*/
public function map(callable $callback)
{
$keys = $this->keys()->all();
$results = array_map($callback, $this->results(), $keys);
return new static(array_combine($keys, $results));
}
/**
* @return mixed
*/
public function all()
{
return $this->results();
}
/**
* @return $this
*/
public function keys()
{
return new static(array_keys($this->results()));
}
/**
* @return false|string
*/
public function __toString()
{
return $this->toJson();
}
/**
* @return false|string
*/
public function toJson()
{
return json_encode($this->results());
}
/**
* @return false|string
*/
public function toJsonFormatted()
{
return '<pre>' . json_encode($this->results()) . '</pre>';
}
/**
* @param $items
*
* @return $this
*/
public function merge($items)
{
return new static(
array_merge(
$this->results(),
$this->toArray($items)
)
);
}
/**
* @param $items
*
* @return array|mixed
*/
protected function toArray($items = null)
{
return (array)$items->all();
}
public function results()
{
return $this->_results;
}
public function count()
{
return count($this->results());
}
}
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