<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think\mongo;
use MongoDB\BSON\ObjectID;
use MongoDB\Driver\BulkWrite;
use MongoDB\Driver\Command;
use MongoDB\Driver\Cursor;
use MongoDB\Driver\Exception\AuthenticationException;
use MongoDB\Driver\Exception\BulkWriteException;
use MongoDB\Driver\Exception\ConnectionException;
use MongoDB\Driver\Exception\InvalidArgumentException;
use MongoDB\Driver\Exception\RuntimeException;
use MongoDB\Driver\Query as MongoQuery;
use MongoDB\Driver\ReadPreference;
use MongoDB\Driver\WriteConcern;
use think\Cache;
use think\Collection;
use think\Config;
use think\Db;
use think\db\exception\DataNotFoundException;
use think\db\exception\ModelNotFoundException;
use think\Exception;
use think\exception\DbException;
use think\Loader;
use think\Model;
use think\Paginator;
class Query
{
// 数据库Connection对象实例
protected $connection;
// 数据库Builder对象实例
protected $builder;
// 当前模型类名称
protected $model;
// 当前数据表名称（含前缀）
protected $table = '';
// 当前数据表名称（不含前缀）
protected $name = '';
// 当前数据表主键
protected $pk;
// 当前数据表前缀
protected $prefix = '';
// 查询参数
protected $options = [];
// 数据表信息
protected static $info = [];
// 回调事件
private static $event = [];
/**
* 架构函数
* @access public
* @param Connection $connection 数据库对象实例
* @param string $model 模型名
*/
public function __construct(Connection $connection = null, $model = '')
{
$this->connection = $connection ?: Db::connect([], true);
$this->prefix = $this->connection->getConfig('prefix');
$this->model = $model;
// 设置当前连接的Builder对象
$this->setBuilder();
}
/**
* 利用__call方法实现一些特殊的Model方法
* @access public
* @param string $method 方法名称
* @param array $args 调用参数
* @return mixed
* @throws DbException
* @throws Exception
*/
public function __call($method, $args)
{
if (strtolower(substr($method, 0, 5)) == 'getby') {
// 根据某个字段获取记录
$field = Loader::parseName(substr($method, 5));
$where[$field] = $args[0];
return $this->where($where)->find();
} elseif (strtolower(substr($method, 0, 10)) == 'getfieldby') {
// 根据某个字段获取记录的某个值
$name = Loader::parseName(substr($method, 10));
$where[$name] = $args[0];
return $this->where($where)->value($args[1]);
} else {
throw new Exception('method not exists:' . __CLASS__ . '->' . $method);
}
}
/**
* 获取当前的数据库Connection对象
* @access public
* @return Connection
*/
public function getConnection()
{
return $this->connection;
}
/**
* 切换当前的数据库连接
* @access public
* @param mixed $config
* @return $this
*/
public function connect($config)
{
$this->connection = Db::connect($config);
$this->setBuilder();
return $this;
}
/**
* 设置当前的数据库Builder对象
* @access protected
* @return void
*/
protected function setBuilder()
{
$this->builder = new Builder($this->connection, $this);
}
/**
* 指定默认的数据表名（不含前缀）
* @access public
* @param string $name
* @return $this
*/
public function name($name)
{
$this->name = $name;
return $this;
}
/**
* 指定默认数据表名（含前缀）
* @access public
* @param string $table 表名
* @return $this
*/
public function setTable($table)
{
$this->table = $table;
return $this;
}
/**
* 得到当前或者指定名称的数据表
* @access public
* @param string $name
* @return string
*/
public function getTable($name = '')
{
if ($name || empty($this->table)) {
$name = $name ?: $this->name;
$tableName = $this->prefix;
if ($name) {
$tableName .= Loader::parseName($name);
}
} else {
$tableName = $this->table;
}
return $tableName;
}
/**
* 指定数据表主键
* @access public
* @param string $pk 主键
* @return $this
*/
public function pk($pk)
{
$this->pk = $pk;
return $this;
}
/**
* 去除某个查询条件
* @access public
* @param string $field 查询字段
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function removeWhereField($field, $logic = 'and')
{
$logic = '$' . strtoupper($logic);
if (isset($this->options['where'][$logic][$field])) {
unset($this->options['where'][$logic][$field]);
}
return $this;
}
/**
* 去除查询参数
* @access public
* @param string|bool $option 参数名 true 表示去除所有参数
* @return $this
*/
public function removeOption($option = true)
{
if (true === $option) {
$this->options = [];
} elseif (is_string($option) && isset($this->options[$option])) {
unset($this->options[$option]);
}
return $this;
}
/**
* 将SQL语句中的__TABLE_NAME__字符串替换成带前缀的表名（小写）
* @access public
* @param string $sql sql语句
* @return string
*/
public function parseSqlTable($sql)
{
if (false !== strpos($sql, '__')) {
$prefix = $this->prefix;
$sql = preg_replace_callback("/__([A-Z0-9_-]+)__/sU", function ($match) use ($prefix) {
return $prefix . strtolower($match[1]);
}, $sql);
}
return $sql;
}
/**
* 执行查询 返回数据集
* @access public
* @param string $namespace
* @param MongoQuery $query 查询对象
* @param ReadPreference $readPreference readPreference
* @param bool|string $class 指定返回的数据集对象
* @param string|array $typeMap 指定返回的typeMap
* @return mixed
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function query($namespace, MongoQuery $query, ReadPreference $readPreference = null, $class = false, $typeMap = null)
{
return $this->connection->query($namespace, $query, $readPreference, $class, $typeMap);
}
/**
* 执行指令 返回数据集
* @access public
* @param Command $command 指令
* @param string $dbName
* @param ReadPreference $readPreference readPreference
* @param bool|string $class 指定返回的数据集对象
* @param string|array $typeMap 指定返回的typeMap
* @return mixed
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function command(Command $command, $dbName = '', ReadPreference $readPreference = null, $class = false, $typeMap = null)
{
return $this->connection->command($command, $dbName, $readPreference, $class, $typeMap);
}
/**
* 执行语句
* @access public
* @param string $namespace
* @param BulkWrite $bulk
* @param WriteConcern $writeConcern
* @return int
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function execute($namespace, BulkWrite $bulk, WriteConcern $writeConcern = null)
{
return $this->connection->execute($namespace, $bulk, $writeConcern);
}
/**
* 获取最近插入的ID
* @access public
* @return string
*/
public function getLastInsID()
{
$id = $this->builder->getLastInsID();
if ($id instanceof ObjectID) {
$id = $id->__toString();
}
return $id;
}
/**
* 获取最近一次执行的指令
* @access public
* @return string
*/
public function getLastSql()
{
return $this->connection->getQueryStr();
}
/**
* 获取数据库的配置参数
* @access public
* @param string $name 参数名称
* @return boolean
*/
public function getConfig($name = '')
{
return $this->connection->getConfig($name);
}
/**
* 得到某个字段的值
* @access public
* @param string $field 字段名
* @param mixed $default 默认值
* @return mixed
*/
public function value($field, $default = null)
{
$result = null;
if (!empty($this->options['cache'])) {
// 判断查询缓存
$cache = $this->options['cache'];
if (empty($this->options['table'])) {
$this->options['table'] = $this->getTable();
}
$key = is_string($cache['key']) ? $cache['key'] : md5($field . serialize($this->options));
$result = Cache::get($key);
}
if (!$result) {
if (isset($this->options['field'])) {
unset($this->options['field']);
}
$cursor = $this->field($field)->fetchCursor(true)->find();
$cursor->setTypeMap(['root' => 'array']);
$resultSet = $cursor->toArray();
$data = isset($resultSet[0]) ? $resultSet[0] : null;
$result = $data[$field];
if (isset($cache)) {
// 缓存数据
$this->cacheData($key, $result, $cache);
}
} else {
// 清空查询条件
$this->options = [];
}
return !is_null($result) ? $result : $default;
}
/**
* 得到某个列的数组
* @access public
* @param string $field 字段名 多个字段用逗号分隔
* @param string $key 索引
* @return array
*/
public function column($field, $key = '')
{
$result = false;
if (!empty($this->options['cache'])) {
// 判断查询缓存
$cache = $this->options['cache'];
if (empty($this->options['table'])) {
$this->options['table'] = $this->getTable();
}
$guid = is_string($cache['key']) ? $cache['key'] : md5($field . serialize($this->options));
$result = Cache::get($guid);
}
if (!$result) {
if (isset($this->options['projection'])) {
unset($this->options['projection']);
}
if ($key && '*' != $field) {
$field = $key . ',' . $field;
}
$cursor = $this->field($field)->fetchCursor(true)->select();
$cursor->setTypeMap(['root' => 'array']);
$resultSet = $cursor->toArray();
if ($resultSet) {
$fields = array_keys($resultSet[0]);
$count = count($fields);
$key1 = array_shift($fields);
$key2 = $fields ? array_shift($fields) : '';
$key = $key ?: $key1;
foreach ($resultSet as $val) {
$name = $val[$key];
if ($name instanceof ObjectID) {
$name = $name->__toString();
}
if (2 == $count) {
$result[$name] = $val[$key2];
} elseif (1 == $count) {
$result[$name] = $val[$key1];
} else {
$result[$name] = $val;
}
}
} else {
$result = [];
}
if (isset($cache) && isset($guid)) {
// 缓存数据
$this->cacheData($guid, $result, $cache);
}
} else {
// 清空查询条件
$this->options = [];
}
return $result;
}
/**
* 执行command
* @access public
* @param string|array|object $command 指令
* @param mixed $extra 额外参数
* @param string $db 数据库名
* @return array
*/
public function cmd($command, $extra = null, $db = null)
{
if (is_array($command) || is_object($command)) {
if ($this->connection->getConfig('debug')) {
$this->connection->log('cmd', 'cmd', $command);
}
// 直接创建Command对象
$command = new Command($command);
} else {
// 调用Builder封装的Command对象
$options = $this->parseExpress();
$command = $this->builder->$command($options, $extra);
}
return $this->command($command, $db);
}
/**
* 指定distinct查询
* @access public
* @param string $field 字段名
* @return array
*/
public function distinct($field)
{
$result = $this->cmd('distinct', $field);
return $result[0]['values'];
}
/**
* 获取数据库的所有collection
* @access public
* @param string $db 数据库名称 留空为当前数据库
* @throws Exception
*/
public function listCollections($db = '')
{
$cursor = $this->cmd('listCollections', null, $db);
$result = [];
foreach ($cursor as $collection) {
$result[] = $collection['name'];
}
return $result;
}
/**
* COUNT查询
* @access public
* @return integer
*/
public function count()
{
$result = $this->cmd('count');
return $result[0]['n'];
}
/**
* 多聚合操作
*
* @param array $aggregate 聚合指令, 可以聚合多个参数, 如 ['sum' => 'field1', 'avg' => 'field2']
* @param array $groupBy 类似mysql里面的group字段, 可以传入多个字段, 如 ['field_a', 'field_b', 'field_c']
* @return array 查询结果
*/
public function multiAggregate($aggregate, $groupBy)
{
$result = $this->cmd('multiAggregate', [$aggregate, $groupBy]);
$result = isset($result[0]['result']) ? $result[0]['result'] : [];
foreach ($result as &$row) {
if (isset($row['_id']) && !empty($row['_id'])) {
foreach ($row['_id'] as $k => $v) {
$row[$k] = $v;
}
unset($row['_id']);
}
}
return $result;
}
/**
* 聚合查询
* @access public
* @param string $aggregate 聚合指令
* @param string $field 字段名
* @return mixed
*/
public function aggregate($aggregate, $field)
{
$result = $this->cmd('aggregate', [$aggregate, $field]);
return isset($result[0]['aggregate']) ? $result[0]['aggregate'] : 0;
}
/**
* MAX查询
* @access public
* @param string $field 字段名
* @return float
*/
public function max($field)
{
return $this->aggregate('max', $field);
}
/**
* MIN查询
* @access public
* @param string $field 字段名
* @return mixed
*/
public function min($field)
{
return $this->aggregate('min', $field);
}
/**
* SUM查询
* @access public
* @param string $field 字段名
* @return float
*/
public function sum($field)
{
return $this->aggregate('sum', $field);
}
/**
* AVG查询
* @access public
* @param string $field 字段名
* @return float
*/
public function avg($field)
{
return $this->aggregate('avg', $field);
}
/**
* 设置记录的某个字段值
* 支持使用数据库字段和方法
* @access public
* @param string|array $field 字段名
* @param mixed $value 字段值
* @return integer
*/
public function setField($field, $value = '')
{
if (is_array($field)) {
$data = $field;
} else {
$data[$field] = $value;
}
return $this->update($data);
}
/**
* 字段值(延迟)增长
* @access public
* @param string $field 字段名
* @param integer $step 增长值
* @param integer $lazyTime 延时时间(s)
* @return integer|true
* @throws Exception
*/
public function setInc($field, $step = 1, $lazyTime = 0)
{
$condition = !empty($this->options['where']) ? $this->options['where'] : [];
if (empty($condition)) {
// 没有条件不做任何更新
throw new Exception('no data to update');
}
if ($lazyTime > 0) {
// 延迟写入
$guid = md5($this->getTable() . '_' . $field . '_' . serialize($condition));
$step = $this->lazyWrite($guid, $step, $lazyTime);
if (empty($step)) {
return true; // 等待下次写入
}
}
return $this->setField($field, ['$inc', $step]);
}
/**
* 字段值（延迟）减少
* @access public
* @param string $field 字段名
* @param integer $step 减少值
* @param integer $lazyTime 延时时间(s)
* @return integer|true
* @throws Exception
*/
public function setDec($field, $step = 1, $lazyTime = 0)
{
$condition = !empty($this->options['where']) ? $this->options['where'] : [];
if (empty($condition)) {
// 没有条件不做任何更新
throw new Exception('no data to update');
}
if ($lazyTime > 0) {
// 延迟写入
$guid = md5($this->getTable() . '_' . $field . '_' . serialize($condition));
$step = $this->lazyWrite($guid, -$step, $lazyTime);
if (empty($step)) {
return true; // 等待下次写入
}
}
return $this->setField($field, ['$inc', -1 * $step]);
}
/**
* 延时更新检查 返回false表示需要延时
* 否则返回实际写入的数值
* @access public
* @param string $guid 写入标识
* @param integer $step 写入步进值
* @param integer $lazyTime 延时时间(s)
* @return false|integer
*/
protected function lazyWrite($guid, $step, $lazyTime)
{
if (false !== ($value = Cache::get($guid))) {
// 存在缓存写入数据
if ($_SERVER['REQUEST_TIME'] > Cache::get($guid . '_time') + $lazyTime) {
// 延时更新时间到了，删除缓存数据 并实际写入数据库
Cache::rm($guid);
Cache::rm($guid . '_time');
return $value + $step;
} else {
// 追加数据到缓存
Cache::set($guid, $value + $step, 0);
return false;
}
} else {
// 没有缓存数据
Cache::set($guid, $step, 0);
// 计时开始
Cache::set($guid . '_time', $_SERVER['REQUEST_TIME'], 0);
return false;
}
}
/**
* 设置数据
* @access public
* @param mixed $field 字段名或者数据
* @param mixed $value 字段值
* @return $this
*/
public function data($field, $value = null)
{
if (is_array($field)) {
$this->options['data'] = isset($this->options['data']) ? array_merge($this->options['data'], $field) : $field;
} else {
$this->options['data'][$field] = $value;
}
return $this;
}
/**
* 字段值增长
* @access public
* @param string|array $field 字段名
* @param integer $step 增长值
* @return $this
*/
public function inc($field, $step = 1)
{
$fields = is_string($field) ? explode(',', $field) : $field;
foreach ($fields as $field) {
$this->data($field, ['$inc', $step]);
}
return $this;
}
/**
* 字段值减少
* @access public
* @param string|array $field 字段名
* @param integer $step 减少值
* @return $this
*/
public function dec($field, $step = 1)
{
$fields = is_string($field) ? explode(',', $field) : $field;
foreach ($fields as $field) {
$this->data($field, ['$inc', -1 * $step]);
}
return $this;
}
/**
* 指定AND查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $op 查询表达式
* @param mixed $condition 查询条件
* @return $this
*/
public function where($field, $op = null, $condition = null)
{
$param = func_get_args();
array_shift($param);
$this->parseWhereExp('and', $field, $op, $condition, $param);
return $this;
}
/**
* 指定OR查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $op 查询表达式
* @param mixed $condition 查询条件
* @return $this
*/
public function whereOr($field, $op = null, $condition = null)
{
$param = func_get_args();
array_shift($param);
$this->parseWhereExp('or', $field, $op, $condition, $param);
return $this;
}
/**
* 指定NOR查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $op 查询表达式
* @param mixed $condition 查询条件
* @return $this
*/
public function whereNor($field, $op = null, $condition = null)
{
$param = func_get_args();
array_shift($param);
$this->parseWhereExp('nor', $field, $op, $condition, $param);
return $this;
}
/**
* 指定Null查询条件
* @access public
* @param mixed $field 查询字段
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereNull($field, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'null', null);
return $this;
}
/**
* 指定NotNull查询条件
* @access public
* @param mixed $field 查询字段
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereNotNull($field, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'notnull', null);
return $this;
}
/**
* 指定In查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereIn($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'in', $condition);
return $this;
}
/**
* 指定NotIn查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereNotIn($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'not in', $condition);
return $this;
}
/**
* 指定Like查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereLike($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'like', $condition);
return $this;
}
/**
* 指定Between查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereBetween($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'between', $condition);
return $this;
}
/**
* 指定NotBetween查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereNotBetween($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'not between', $condition);
return $this;
}
/**
* 指定Exp查询条件
* @access public
* @param mixed $field 查询字段
* @param mixed $condition 查询条件
* @param string $logic 查询逻辑 and or xor
* @return $this
*/
public function whereExp($field, $condition, $logic = 'and')
{
$this->parseWhereExp($logic, $field, 'exp', $condition);
return $this;
}
/**
* 分析查询表达式
* @access public
* @param string $logic 查询逻辑 and or xor
* @param string|array|\Closure $field 查询字段
* @param mixed $op 查询表达式
* @param mixed $condition 查询条件
* @param array $param 查询参数
* @return void
*/
protected function parseWhereExp($logic, $field, $op, $condition, $param = [])
{
$logic = '$' . strtolower($logic);
if ($field instanceof \Closure) {
$this->options['where'][$logic][] = is_string($op) ? [$op, $field] : $field;
return;
}
$where = [];
if (is_null($op) && is_null($condition)) {
if (is_array($field)) {
// 数组批量查询
$where = $field;
} elseif ($field) {
// 字符串查询
$where[] = ['exp', $field];
} else {
$where = '';
}
} elseif (is_array($op)) {
$where[$field] = $param;
} elseif (in_array(strtolower($op), ['null', 'notnull', 'not null'])) {
// null查询
$where[$field] = [$op, ''];
} elseif (is_null($condition)) {
// 字段相等查询
$where[$field] = ['=', $op];
} else {
$where[$field] = [$op, $condition];
}
if (!empty($where)) {
if (!isset($this->options['where'][$logic])) {
$this->options['where'][$logic] = [];
}
$this->options['where'][$logic] = array_merge($this->options['where'][$logic], $where);
}
}
/**
* 查询日期或者时间
* @access public
* @param string $field 日期字段名
* @param string $op 比较运算符或者表达式
* @param string|array $range 比较范围
* @return $this
*/
public function whereTime($field, $op, $range = null)
{
if (is_null($range)) {
// 使用日期表达式
$date = getdate();
switch (strtolower($op)) {
case 'today':
case 'd':
$range = ['today', 'tomorrow'];
break;
case 'week':
case 'w':
$range = 'this week 00:00:00';
break;
case 'month':
case 'm':
$range = mktime(0, 0, 0, $date['mon'], 1, $date['year']);
break;
case 'year':
case 'y':
$range = mktime(0, 0, 0, 1, 1, $date['year']);
break;
case 'yesterday':
$range = ['yesterday', 'today'];
break;
case 'last week':
$range = ['last week 00:00:00', 'this week 00:00:00'];
break;
case 'last month':
$range = [date('y-m-01', strtotime('-1 month')), mktime(0, 0, 0, $date['mon'], 1, $date['year'])];
break;
case 'last year':
$range = [mktime(0, 0, 0, 1, 1, $date['year'] - 1), mktime(0, 0, 0, 1, 1, $date['year'])];
break;
default:
$range = $op;
}
$op = is_array($range) ? 'between' : '>';
}
$this->where($field, strtolower($op) . ' time', $range);
return $this;
}
/**
* 分页查询
* @param int|null $listRows 每页数量
* @param bool $simple 简洁模式
* @param array $config 配置参数
* page:当前页,
* path:url路径,
* query:url额外参数,
* fragment:url锚点,
* var_page:分页变量,
* list_rows:每页数量
* type:分页类名,
* namespace:分页类命名空间
* @return \think\Paginator
* @throws DbException
*/
public function paginate($listRows = null, $simple = false, $config = [])
{
$config = array_merge(Config::get('paginate'), $config);
$listRows = $listRows ?: $config['list_rows'];
$class = strpos($config['type'], '\\') ? $config['type'] : '\\think\\paginator\\driver\\' . ucwords($config['type']);
$page = isset($config['page']) ? (int) $config['page'] : call_user_func([
$class,
'getCurrentPage',
], $config['var_page']);
$page = $page < 1 ? 1 : $page;
$config['path'] = isset($config['path']) ? $config['path'] : call_user_func([$class, 'getCurrentPath']);
/** @var Paginator $paginator */
if (!$simple) {
$options = $this->getOptions();
$total = $this->count();
$results = $this->options($options)->page($page, $listRows)->select();
} else {
$results = $this->limit(($page - 1) * $listRows, $listRows + 1)->select();
$total = null;
}
return $class::make($results, $listRows, $page, $total, $simple, $config);
}
/**
* 指定当前操作的数据表
* @access public
* @param string $table 表名
* @return $this
*/
public function table($table)
{
$this->options['table'] = $table;
return $this;
}
/**
* 指定当前操作的collection
* @access public
* @param string $collection
* @return $this
*/
public function collection($collection)
{
return $this->table($collection);
}
/**
* 查询缓存
* @access public
* @param mixed $key 缓存key
* @param integer $expire 缓存有效期
* @param string $tag 缓存标签
* @return $this
*/
public function cache($key = true, $expire = null, $tag = null)
{
// 增加快捷调用方式 cache(10) 等同于 cache(true, 10)
if (is_numeric($key) && is_null($expire)) {
$expire = $key;
$key = true;
}
if (false !== $key) {
$this->options['cache'] = ['key' => $key, 'expire' => $expire, 'tag' => $tag];
}
return $this;
}
/**
* 设置软删除字段及条件（暂无支持）
* @access public
* @param false|string $field 查询字段
* @param mixed $condition 查询条件
* @return $this
*/
public function useSoftDelete($field, $condition = null)
{
}
/**
* 不主动获取数据集
* @access public
* @param bool $cursor 是否返回 Cursor 对象
* @return $this
*/
public function fetchCursor($cursor = true)
{
$this->options['fetch_cursor'] = $cursor;
return $this;
}
/**
* 设置typeMap
* @access public
* @param string|array $typeMap
* @return $this
*/
public function typeMap($typeMap)
{
$this->options['typeMap'] = $typeMap;
return $this;
}
/**
* 设置从主服务器读取数据
* @access public
* @return $this
*/
public function master()
{
$this->options['master'] = true;
return $this;
}
/**
* 设置查询数据不存在是否抛出异常
* @access public
* @param bool $fail 是否严格检查字段
* @return $this
*/
public function failException($fail = true)
{
$this->options['fail'] = $fail;
return $this;
}
/**
* awaitData
* @access public
* @param bool $awaitData
* @return $this
*/
public function awaitData($awaitData)
{
$this->options['awaitData'] = $awaitData;
return $this;
}
/**
* batchSize
* @access public
* @param integer $batchSize
* @return $this
*/
public function batchSize($batchSize)
{
$this->options['batchSize'] = $batchSize;
return $this;
}
/**
* exhaust
* @access public
* @param bool $exhaust
* @return $this
*/
public function exhaust($exhaust)
{
$this->options['exhaust'] = $exhaust;
return $this;
}
/**
* 设置modifiers
* @access public
* @param array $modifiers
* @return $this
*/
public function modifiers($modifiers)
{
$this->options['modifiers'] = $modifiers;
return $this;
}
/**
* 设置noCursorTimeout
* @access public
* @param bool $noCursorTimeout
* @return $this
*/
public function noCursorTimeout($noCursorTimeout)
{
$this->options['noCursorTimeout'] = $noCursorTimeout;
return $this;
}
/**
* 设置oplogReplay
* @access public
* @param bool $oplogReplay
* @return $this
*/
public function oplogReplay($oplogReplay)
{
$this->options['oplogReplay'] = $oplogReplay;
return $this;
}
/**
* 设置partial
* @access public
* @param bool $partial
* @return $this
*/
public function partial($partial)
{
$this->options['partial'] = $partial;
return $this;
}
/**
* 查询注释
* @access public
* @param string $comment 注释
* @return $this
*/
public function comment($comment)
{
$this->options['comment'] = $comment;
return $this;
}
/**
* maxTimeMS
* @access public
* @param string $maxTimeMS
* @return $this
*/
public function maxTimeMS($maxTimeMS)
{
$this->options['maxTimeMS'] = $maxTimeMS;
return $this;
}
/**
* collation
* @access public
* @param array $collation
* @return $this
*/
public function collation($collation)
{
$this->options['collation'] = $collation;
return $this;
}
/**
* 设置返回字段
* @access public
* @param array $field
* @param boolean $except 是否排除
* @return $this
*/
public function field($field, $except = false)
{
if (is_string($field)) {
$field = array_map('trim', explode(',', $field));
}
$projection = [];
foreach ($field as $key => $val) {
if (is_numeric($key)) {
$projection[$val] = $except ? 0 : 1;
} else {
$projection[$key] = $val;
}
}
$this->options['projection'] = $projection;
return $this;
}
/**
* 设置skip
* @access public
* @param integer $skip
* @return $this
*/
public function skip($skip)
{
$this->options['skip'] = $skip;
return $this;
}
/**
* 设置slaveOk
* @access public
* @param bool $slaveOk
* @return $this
*/
public function slaveOk($slaveOk)
{
$this->options['slaveOk'] = $slaveOk;
return $this;
}
/**
* 关联预载入查询
* @access public
* @param mixed $with
* @return $this
*/
public function with($with)
{
$this->options['with'] = $with;
return $this;
}
/**
* 关联统计
* @access public
* @param string|array $relation 关联方法名
* @return $this
*/
public function withCount($relation)
{
$this->options['with_count'] = $relation;
return $this;
}
/**
* 指定查询数量
* @access public
* @param mixed $offset 起始位置
* @param mixed $length 查询数量
* @return $this
*/
public function limit($offset, $length = null)
{
if (is_null($length)) {
if (is_numeric($offset)) {
$length = $offset;
$offset = 0;
} else {
list($offset, $length) = explode(',', $offset);
}
}
$this->options['skip'] = intval($offset);
$this->options['limit'] = intval($length);
return $this;
}
/**
* 指定分页
* @access public
* @param mixed $page 页数
* @param mixed $listRows 每页数量
* @return $this
*/
public function page($page, $listRows = null)
{
if (is_null($listRows) && strpos($page, ',')) {
list($page, $listRows) = explode(',', $page);
}
$this->options['page'] = [intval($page), intval($listRows)];
return $this;
}
/**
* 设置sort
* @access public
* @param array|string|object $field
* @param string $order
* @return $this
*/
public function order($field, $order = '')
{
if (is_array($field)) {
$this->options['sort'] = $field;
} else {
$this->options['sort'][$field] = 'asc' == strtolower($order) ? 1 : -1;
}
return $this;
}
/**
* 设置tailable
* @access public
* @param bool $tailable
* @return $this
*/
public function tailable($tailable)
{
$this->options['tailable'] = $tailable;
return $this;
}
/**
* 设置writeConcern对象
* @access public
* @param WriteConcern $writeConcern
* @return $this
*/
public function writeConcern($writeConcern)
{
$this->options['writeConcern'] = $writeConcern;
return $this;
}
/**
* 获取当前数据表的主键
* @access public
* @return string|array
*/
public function getPk()
{
return !empty($this->pk) ? $this->pk : $this->getConfig('pk');
}
/**
* 查询参数赋值
* @access protected
* @param array $options 表达式参数
* @return $this
*/
protected function options(array $options)
{
$this->options = $options;
return $this;
}
/**
* 获取当前的查询参数
* @access public
* @param string $name 参数名
* @return mixed
*/
public function getOptions($name = '')
{
return isset($this->options[$name]) ? $this->options[$name] : $this->options;
}
/**
* 设置关联查询
* @access public
* @param string $relation 关联名称
* @return $this
*/
public function relation($relation)
{
$this->options['relation'] = $relation;
return $this;
}
/**
* 把主键值转换为查询条件 支持复合主键
* @access public
* @param array|string $data 主键数据
* @param mixed $options 表达式参数
* @return void
* @throws Exception
*/
protected function parsePkWhere($data, &$options)
{
$pk = $this->getPk();
if (is_string($pk)) {
// 根据主键查询
if (is_array($data)) {
$where[$pk] = isset($data[$pk]) ? $data[$pk] : ['in', $data];
} else {
$where[$pk] = strpos($data, ',') ? ['in', $data] : $data;
}
}
if (!empty($where)) {
if (isset($options['where']['$and'])) {
$options['where']['$and'] = array_merge($options['where']['$and'], $where);
} else {
$options['where']['$and'] = $where;
}
}
return;
}
/**
* 插入记录
* @access public
* @param mixed $data 数据
* @param boolean $replace 是否replace（目前无效）
* @param boolean $getLastInsID 返回自增主键
* @return WriteResult
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function insert(array $data, $replace = null, $getLastInsID = false)
{
if (empty($data)) {
throw new Exception('miss data to insert');
}
// 分析查询表达式
$options = $this->parseExpress();
$data = array_merge($options['data'], $data);
// 生成bulk对象
$bulk = $this->builder->insert($data, $options);
$writeConcern = isset($options['writeConcern']) ? $options['writeConcern'] : null;
$writeResult = $this->execute($options['table'], $bulk, $writeConcern);
$result = $writeResult->getInsertedCount();
if ($result) {
$lastInsId = $this->getLastInsID();
if ($lastInsId) {
$pk = $this->getPk();
$data[$pk] = $lastInsId;
}
$options['data'] = $data;
$this->trigger('after_insert', $options);
if ($getLastInsID) {
return $lastInsId;
}
}
return $result;
}
/**
* 插入记录并获取自增ID
* @access public
* @param mixed $data 数据
* @return integer
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function insertGetId(array $data)
{
return $this->insert($data, null, true);
}
/**
* 批量插入记录
* @access public
* @param mixed $dataSet 数据集
* @return integer
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function insertAll(array $dataSet)
{
// 分析查询表达式
$options = $this->parseExpress();
if (!is_array(reset($dataSet))) {
return false;
}
// 生成bulkWrite对象
$bulk = $this->builder->insertAll($dataSet, $options);
$writeConcern = isset($options['writeConcern']) ? $options['writeConcern'] : null;
$writeResult = $this->execute($options['table'], $bulk, $writeConcern);
return $writeResult->getInsertedCount();
}
/**
* 更新记录
* @access public
* @param mixed $data 数据
* @return int
* @throws Exception
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function update(array $data)
{
$options = $this->parseExpress();
$data = array_merge($options['data'], $data);
if (isset($options['cache']) && is_string($options['cache']['key'])) {
$key = $options['cache']['key'];
}
$pk = $this->getPk();
if (empty($options['where'])) {
// 如果存在主键数据 则自动作为更新条件
if (is_string($pk) && isset($data[$pk])) {
$where[$pk] = $data[$pk];
$key = 'mongo:' . $options['table'] . '|' . $data[$pk];
unset($data[$pk]);
} elseif (is_array($pk)) {
// 增加复合主键支持
foreach ($pk as $field) {
if (isset($data[$field])) {
$where[$field] = $data[$field];
} else {
// 如果缺少复合主键数据则不执行
throw new Exception('miss complex primary data');
}
unset($data[$field]);
}
}
if (!isset($where)) {
// 如果没有任何更新条件则不执行
throw new Exception('miss update condition');
} else {
$options['where']['$and'] = $where;
}
} elseif (!isset($key) && is_string($pk) && isset($options['where']['$and'][$pk])) {
$key = $this->getCacheKey($options['where']['$and'][$pk], $options);
}
// 生成bulkWrite对象
$bulk = $this->builder->update($data, $options);
$writeConcern = isset($options['writeConcern']) ? $options['writeConcern'] : null;
$writeResult = $this->execute($options['table'], $bulk, $writeConcern);
// 检测缓存
if (isset($key) && Cache::get($key)) {
// 删除缓存
Cache::rm($key);
}
$result = $writeResult->getModifiedCount();
if ($result) {
if (isset($where[$pk])) {
$data[$pk] = $where[$pk];
} elseif (is_string($pk) && isset($key) && strpos($key, '|')) {
list($a, $val) = explode('|', $key);
$data[$pk] = $val;
}
$options['data'] = $data;
$this->trigger('after_update', $options);
}
return $result;
}
/**
* 删除记录
* @access public
* @param array $data 表达式 true 表示强制删除
* @return int
* @throws Exception
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
* @throws BulkWriteException
*/
public function delete($data = null)
{
// 分析查询表达式
$options = $this->parseExpress();
$pk = $this->getPk();
if (!is_null($data) && true !== $data) {
if (!is_array($data)) {
// 缓存标识
$key = 'mongo:' . $options['table'] . '|' . $data;
}
// AR模式分析主键条件
$this->parsePkWhere($data, $options);
} elseif (!isset($key) && is_string($pk) && isset($options['where']['$and'][$pk])) {
$key = $this->getCacheKey($options['where']['$and'][$pk], $options);
}
if (true !== $data && empty($options['where'])) {
// 如果不是强制删除且条件为空 不进行删除操作
throw new Exception('delete without condition');
}
// 生成bulkWrite对象
$bulk = $this->builder->delete($options);
$writeConcern = isset($options['writeConcern']) ? $options['writeConcern'] : null;
// 执行操作
$writeResult = $this->execute($options['table'], $bulk, $writeConcern);
// 检测缓存
if (isset($key) && Cache::get($key)) {
// 删除缓存
Cache::rm($key);
}
$result = $writeResult->getDeletedCount();
if ($result) {
if (!is_array($data) && is_string($pk) && isset($key) && strpos($key, '|')) {
list($a, $val) = explode('|', $key);
$item[$pk] = $val;
$data = $item;
}
$options['data'] = $data;
$this->trigger('after_delete', $options);
}
return $result;
}
/**
* 执行查询但只返回Cursor对象
* @access public
* @return Cursor
*/
public function getCursor()
{
// 分析查询表达式
$options = $this->parseExpress();
// 生成MongoQuery对象
$query = $this->builder->select($options);
// 执行查询操作
$readPreference = isset($options['readPreference']) ? $options['readPreference'] : null;
return $this->query($options['table'], $query, $readPreference, true, $options['typeMap']);
}
/**
* 查找记录
* @access public
* @param array|string|Query|\Closure $data
* @return Collection|false|Cursor|string
* @throws ModelNotFoundException
* @throws DataNotFoundException
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function select($data = null)
{
if ($data instanceof Query) {
return $data->select();
} elseif ($data instanceof \Closure) {
call_user_func_array($data, [ & $this]);
$data = null;
}
// 分析查询表达式
$options = $this->parseExpress();
if (!is_null($data)) {
// 主键条件分析
$this->parsePkWhere($data, $options);
}
$resultSet = false;
if (!empty($options['cache'])) {
// 判断查询缓存
$cache = $options['cache'];
$key = is_string($cache['key']) ? $cache['key'] : md5(serialize($options));
$resultSet = Cache::get($key);
}
if (!$resultSet) {
// 生成MongoQuery对象
$query = $this->builder->select($options);
$options['data'] = $data;
if ($resultSet = $this->trigger('before_select', $options)) {
} else {
// 执行查询操作
$readPreference = isset($options['readPreference']) ? $options['readPreference'] : null;
$resultSet = $this->query($options['table'], $query, $readPreference, $options['fetch_cursor'], $options['typeMap']);
if ($resultSet instanceof Cursor) {
// 返回MongoDB\Driver\Cursor对象
return $resultSet;
}
}
if (isset($cache)) {
// 缓存数据集
$this->cacheData($key, $resultSet, $cache);
}
}
// 数据列表读取后的处理
if (!empty($this->model)) {
// 生成模型对象
$modelName = $this->model;
if (count($resultSet) > 0) {
foreach ($resultSet as $key => $result) {
/** @var Model $result */
$model = new $modelName($result);
$model->isUpdate(true);
// 关联查询
if (!empty($options['relation'])) {
$model->relationQuery($options['relation']);
}
// 关联统计
if (!empty($options['with_count'])) {
$model->relationCount($model, $options['with_count']);
}
$resultSet[$key] = $model;
}
if (!empty($options['with'])) {
// 预载入
$model->eagerlyResultSet($resultSet, $options['with']);
}
// 模型数据集转换
$resultSet = $model->toCollection($resultSet);
} else {
$resultSet = (new $modelName)->toCollection($resultSet);
}
} elseif ('collection' == $this->connection->getConfig('resultset_type')) {
// 返回Collection对象
$resultSet = new Collection($resultSet);
}
if (!empty($options['fail']) && count($resultSet) == 0) {
$this->throwNotFound($options);
}
return $resultSet;
}
/**
* 缓存数据
* @access public
* @param string $key 缓存标识
* @param mixed $data 缓存数据
* @param array $config 缓存参数
*/
protected function cacheData($key, $data, $config = [])
{
if (isset($config['tag'])) {
Cache::tag($config['tag'])->set($key, $data, $config['expire']);
} else {
Cache::set($key, $data, $config['expire']);
}
}
/**
* 生成缓存标识
* @access public
* @param mixed $value 缓存数据
* @param array $options 缓存参数
*/
protected function getCacheKey($value, $options)
{
if (is_scalar($value)) {
$data = $value;
} elseif (is_array($value) && '=' == $value[0]) {
$data = $value[1];
}
if (isset($data)) {
return 'mongo:' . $options['table'] . '|' . $data;
}
}
/**
* 查找单条记录
* @access public
* @param array|string|Query|\Closure $data
* @return array|null|Cursor|string|Model
* @throws ModelNotFoundException
* @throws DataNotFoundException
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function find($data = null)
{
if ($data instanceof Query) {
return $data->find();
} elseif ($data instanceof \Closure) {
call_user_func_array($data, [ & $this]);
$data = null;
}
// 分析查询表达式
$options = $this->parseExpress();
$pk = $this->getPk();
if (!is_null($data)) {
// AR模式分析主键条件
$this->parsePkWhere($data, $options);
} elseif (!empty($options['cache']) && true === $options['cache']['key'] && is_string($pk) && isset($options['where']['$and'][$pk])) {
$key = $this->getCacheKey($options['where']['$and'][$pk], $options);
}
$options['limit'] = 1;
$result = false;
if (!empty($options['cache'])) {
// 判断查询缓存
$cache = $options['cache'];
if (true === $cache['key'] && !is_null($data) && !is_array($data)) {
$key = 'mongo:' . $options['table'] . '|' . $data;
} elseif (!isset($key)) {
$key = is_string($cache['key']) ? $cache['key'] : md5(serialize($options));
}
$result = Cache::get($key);
}
if (false === $result) {
// 生成查询SQL
$query = $this->builder->select($options);
if (is_string($pk)) {
if (!is_array($data)) {
if (isset($key) && strpos($key, '|')) {
list($a, $val) = explode('|', $key);
$item[$pk] = $val;
} else {
$item[$pk] = $data;
}
$data = $item;
}
}
$options['data'] = $data;
// 事件回调
if ($result = $this->trigger('before_find', $options)) {
} else {
// 执行查询
$readPreference = isset($options['readPreference']) ? $options['readPreference'] : null;
$resultSet = $this->query($options['table'], $query, $readPreference, $options['fetch_cursor'], $options['typeMap']);
if ($resultSet instanceof Cursor) {
// 返回MongoDB\Driver\Cursor对象
return $resultSet;
}
$result = isset($resultSet[0]) ? $resultSet[0] : null;
}
if (isset($cache)) {
// 缓存数据
$this->cacheData($key, $result, $cache);
}
}
// 数据处理
if (!empty($result)) {
if (!empty($this->model)) {
// 返回模型对象
$model = $this->model;
$result = new $model($result);
$result->isUpdate(true, isset($options['where']['$and']) ? $options['where']['$and'] : null);
// 关联查询
if (!empty($options['relation'])) {
$result->relationQuery($options['relation']);
}
if (!empty($options['with'])) {
// 预载入
$result->eagerlyResult($result, $options['with']);
}
// 关联统计
if (!empty($options['with_count'])) {
$result->relationCount($result, $options['with_count']);
}
}
} elseif (!empty($options['fail'])) {
$this->throwNotFound($options);
}
return $result;
}
/**
* 查询失败 抛出异常
* @access public
* @param array $options 查询参数
* @throws ModelNotFoundException
* @throws DataNotFoundException
*/
protected function throwNotFound($options = [])
{
if (!empty($this->model)) {
throw new ModelNotFoundException('model data Not Found:' . $this->model, $this->model, $options);
} else {
throw new DataNotFoundException('table data not Found:' . $options['table'], $options['table'], $options);
}
}
/**
* 查找多条记录 如果不存在则抛出异常
* @access public
* @param array|string|Query|\Closure $data
* @return array|\PDOStatement|string|Model
* @throws ModelNotFoundException
* @throws DataNotFoundException
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function selectOrFail($data = null)
{
return $this->failException(true)->select($data);
}
/**
* 查找单条记录 如果不存在则抛出异常
* @access public
* @param array|string|Query|\Closure $data
* @return array|\PDOStatement|string|Model
* @throws ModelNotFoundException
* @throws DataNotFoundException
* @throws AuthenticationException
* @throws InvalidArgumentException
* @throws ConnectionException
* @throws RuntimeException
*/
public function findOrFail($data = null)
{
return $this->failException(true)->find($data);
}
/**
* 分批数据返回处理
* @access public
* @param integer $count 每次处理的数据数量
* @param callable $callback 处理回调方法
* @param string $column 分批处理的字段名
* @return boolean
*/
public function chunk($count, $callback, $column = null)
{
$column = $column ?: $this->getPk();
$options = $this->getOptions();
$resultSet = $this->limit($count)->order($column, 'asc')->select();
while (!empty($resultSet)) {
if (false === call_user_func($callback, $resultSet)) {
return false;
}
$end = end($resultSet);
$lastId = is_array($end) ? $end[$column] : $end->$column;
$resultSet = $this->options($options)
->limit($count)
->where($column, '>', $lastId)
->order($column, 'asc')
->select();
}
return true;
}
/**
* 获取数据表信息
* @access public
* @param string $tableName 数据表名 留空自动获取
* @param string $fetch 获取信息类型 包括 fields type pk
* @return mixed
*/
public function getTableInfo($tableName = '', $fetch = '')
{
if (!$tableName) {
$tableName = $this->getTable();
}
if (is_array($tableName)) {
$tableName = key($tableName) ?: current($tableName);
}
if (strpos($tableName, ',')) {
// 多表不获取字段信息
return false;
} else {
$tableName = $this->parseSqlTable($tableName);
}
$guid = md5($tableName);
if (!isset(self::$info[$guid])) {
$result = $this->table($tableName)->find();
if ($result instanceof Model) {
$result = $result->toArray();
} elseif (!$result) {
$result = [];
}
$fields = array_keys($result);
$type = [];
foreach ($result as $key => $val) {
// 记录字段类型
$type[$key] = getType($val);
if ('_id' == $key) {
$pk = $key;
}
}
if (!isset($pk)) {
// 设置主键
$pk = null;
}
$result = ['fields' => $fields, 'type' => $type, 'pk' => $pk];
self::$info[$guid] = $result;
}
return $fetch ? self::$info[$guid][$fetch] : self::$info[$guid];
}
/**
* 分析表达式（可用于查询或者写入操作）
* @access protected
* @return array
*/
protected function parseExpress()
{
$options = $this->options;
// 获取数据表
if (empty($options['table'])) {
$options['table'] = $this->getTable();
}
foreach (['where', 'data'] as $name) {
if (!isset($options[$name])) {
$options[$name] = [];
}
}
$modifiers = empty($options['modifiers']) ? [] : $options['modifiers'];
if (isset($options['comment'])) {
$modifiers['$comment'] = $options['comment'];
}
if (isset($options['maxTimeMS'])) {
$modifiers['$maxTimeMS'] = $options['maxTimeMS'];
}
if (!empty($modifiers)) {
$options['modifiers'] = $modifiers;
}
if (!isset($options['projection']) || '*' == $options['projection']) {
$options['projection'] = [];
}
if (!isset($options['typeMap'])) {
$options['typeMap'] = $this->getConfig('type_map');
}
if (!isset($options['limit'])) {
$options['limit'] = 0;
}
foreach (['master', 'fetch_cursor'] as $name) {
if (!isset($options[$name])) {
$options[$name] = false;
}
}
if (isset($options['page'])) {
// 根据页数计算limit
list($page, $listRows) = $options['page'];
$page = $page > 0 ? $page : 1;
$listRows = $listRows > 0 ? $listRows : (is_numeric($options['limit']) ? $options['limit'] : 20);
$offset = $listRows * ($page - 1);
$options['skip'] = intval($offset);
$options['limit'] = intval($listRows);
}
$this->options = [];
return $options;
}
/**
* 注册回调方法
* @access public
* @param string $event 事件名
* @param callable $callback 回调方法
* @return void
*/
public static function event($event, $callback)
{
self::$event[$event] = $callback;
}
/**
* 触发事件
* @access protected
* @param string $event 事件名
* @param mixed $params 额外参数
* @return bool
*/
protected function trigger($event, $params = [])
{
$result = false;
if (isset(self::$event[$event])) {
$callback = self::$event[$event];
$result = call_user_func_array($callback, [$params, $this]);
}
return $result;
}
}