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<?php
/**
* @copyright NetMonsters <team@netmonsters.ru>
* @link http://netmonsters.ru
* @package Majestic
* @subpackage db
* @since 2011-11-15
*/
class MongoCommandBuilder
{
const FIND = 'Find';
const COUNT = 'Count';
const INSERT = 'Insert';
const UPDATE = 'Update';
const REMOVE = 'Remove';
const COMMAND = 'Command';
/**
* @param string $type
* @param MongoCollection $collection
* @return MongoDbCommand
*/
static public function factory($type, $collection = null)
{
$class = ucfirst($type) . 'MongoCommand';
$command = new $class();
$command->setCollection($collection);
return $command;
}
}
abstract class MongoDbCommand
{
/**
* @var MongoCollection
*/
protected $collection;
/**
* Execute Mongo command/query
*
* @return mixed
* @throws GeneralException
*/
public function execute()
{
if ($this->checkParams()) {
return $this->concreteExecute();
} else {
throw new GeneralException(get_called_class() . ' error. Bind all required params first.');
}
}
/**
* @param string $name Parameter name
* @param mixed $value Parameter value
* @return MongoDbCommand
*/
public function bindParam($name, $value)
{
if (property_exists($this, $name)) {
$this->$name = $value;
}
return $this;
}
/**
* @param MongoCollection $collection Mongo collection
* @return MongoDbCommand
*/
public function setCollection($collection)
{
$this->collection = $collection;
return $this;
}
/**
* Convert query parameters array to string
*
* @param array $array
* @return string
*/
protected function arrayToString($array)
{
$string = '[';
if(!empty($array)) {
$string .= PHP_EOL;
}
foreach($array as $key => $value) {
$string .= "\t" . $key . ' = ' . $value . PHP_EOL;
}
$string .= ']' . PHP_EOL;
return $string;
}
abstract protected function concreteExecute();
abstract protected function checkParams();
}
class FindMongoCommand extends MongoDbCommand
{
protected $condition = array();
protected $fields = array();
protected $multiple = true;
protected function concreteExecute()
{
if ($this->multiple) {
return $this->collection->find($this->condition, $this->fields);
} else {
return $this->collection->findOne($this->condition, $this->fields);
}
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->condition) && isset($this->fields)) {
return true;
} else {
return false;
}
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Condition: ' . $this->arrayToString($this->condition);
$result .= 'Type: FIND' . PHP_EOL;
$result .= 'Fields: ' . $this->arrayToString($this->fields);
$mult = $this->multiple ? 'TRUE' : 'FALSE';
$result .= 'Multiple fields: ' . $mult . PHP_EOL;
return $result;
} else {
return 'Command properties not set';
}
}
}
class CountMongoCommand extends MongoDbCommand
{
protected $condition = array();
protected $limit = 0;
protected $skip = 0;
protected $multiple = true;
protected function concreteExecute()
{
return $this->collection->count($this->condition, $this->limit, $this->skip);
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->condition) && isset($this->limit) && isset($this->skip)) {
return true;
} else {
return false;
}
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Type: COUNT' . PHP_EOL;
$result .= 'Condition: ' . $this->arrayToString($this->condition);
$result .= 'Limit: ' . $this->limit . PHP_EOL;
$result .= 'Skip: ' . $this->skip . PHP_EOL;
return $result;
} else {
return 'Command properties not set';
}
}
}
class InsertMongoCommand extends MongoDbCommand
{
protected $data;
protected $safe = true;
protected $insertId = false;
protected $multiple = false;
protected function concreteExecute()
{
$result = null;
if (!$this->multiple) {
$result = $this->collection->insert($this->data, array('safe' => $this->safe));
$this->insertId = $this->data['_id'];
} else {
if (count($this->data)) {
$result = $this->collection->batchInsert($this->data, array('safe' => $this->safe));
}
}
return $result;
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->data) && isset($this->safe)) {
return true;
} else {
return false;
}
}
public function getInsertId()
{
return $this->insertId;
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Type: INSERT' . PHP_EOL;
$result .= 'Data: ' . $this->arrayToString($this->data);
$mult = $this->multiple ? 'TRUE' : 'FALSE';
$result .= 'Bulk insert: ' . $mult . PHP_EOL;
$safe = $this->safe ? 'TRUE' : 'FALSE';
$result .= 'Safe operation: ' . $safe . PHP_EOL;
return $result;
} else {
return 'Command properties not set';
}
}
}
class UpdateMongoCommand extends MongoDbCommand
{
protected $condition;
protected $data;
protected $multiple = true;
protected $upsert = false;
protected $safe = true;
protected function concreteExecute()
{
return $this->collection->update($this->condition, $this->data,
array('multiple' => $this->multiple, 'upsert' => $this->upsert, 'safe' => $this->safe));
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->condition) && isset($this->data) &&
isset($this->upsert) && isset($this->safe)
) {
return true;
} else {
return false;
}
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Type: UPDATE' . PHP_EOL;
$result .= 'Condition: ' . $this->arrayToString($this->condition);
$result .= 'Data: ' . $this->arrayToString($this->data);
$mult = $this->multiple ? 'TRUE' : 'FALSE';
$result .= 'Multiple fields: ' . $mult . PHP_EOL;
$upsert = $this->upsert ? 'TRUE' : 'FALSE';
$result .= 'Upsert: ' . $upsert . PHP_EOL;
$safe = $this->safe ? 'TRUE' : 'FALSE';
$result .= 'Safe operation: ' . $safe . PHP_EOL;
return $result;
} else {
return 'Command properties not set';
}
}
}
class RemoveMongoCommand extends MongoDbCommand
{
protected $condition;
protected $safe = true;
protected function concreteExecute()
{
return $this->collection->remove($this->condition, array('safe' => $this->safe));
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->condition) && isset($this->safe)) {
return true;
} else {
return false;
}
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Type: REMOVE' . PHP_EOL;
$result .= 'Condition: ' . $this->arrayToString($this->condition);
$safe = $this->safe ? 'TRUE' : 'FALSE';
$result .= 'Safe operation: ' . $safe . PHP_EOL;
return $result;
} else {
return 'Command properties not set';
}
}
}
class CommandMongoCommand extends MongoDbCommand
{
protected $command;
protected function concreteExecute()
{
$db = $this->collection->db;
if ($db instanceof MongoDB) {
return $db->command($this->command);
} else {
return false;
}
}
protected function checkParams()
{
if (isset($this->collection) && isset($this->command)) {
return true;
} else {
return false;
}
}
public function __toString()
{
if ($this->checkParams()) {
$result = PHP_EOL . 'Collection: ' . trim($this->collection, "\n") . PHP_EOL;
$result .= 'Type: COMMAND' . PHP_EOL;
$result .= 'Command: ' . $this->arrayToString($this->command);
return $result;
} else {
return 'Command properties not set';
}
}
}