Db::instance() - Code Metrics - Inspection of "Merge branch '6.0' of https://github.com/top-think..." - top-think/framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 6.0 ( a1442b...a10566 )

by liu

created 2019-06-25 07:43 UTC

Db::instance() A

↳ Parent: Db

Complexity

Conditions	6
Paths	8

Size

Total Lines	18
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	42

Importance

Changes

Metric	Value
cc	6
eloc	9
nc	8
nop	2
dl	0
loc	18
ccs	0
cts	10
cp	0
crap	42
rs	9.2222
c	0
b	0
f	0

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <[email protected]>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace think;

use InvalidArgumentException;
use think\db\BaseQuery;
use think\db\Connection;
use think\db\Raw;

/**
 * Class Db
 * @package think

 * @mixin BaseQuery
 * @mixin Query
 */
class Db
{
    /**
     * 数据库连接实例
     * @var array
     */
    protected $instance = [];

    /**
     * Event对象
     * @var Event
     */
    protected $event;

    /**
     * 数据库配置
     * @var array
     */
    protected $config = [];

    /**
     * SQL监听
     * @var array
     */
    protected $listen = [];

    /**
     * 查询次数
     * @var int
     */
    protected $queryTimes = 0;

    /**
     * 架构函数
     * @param array $config 连接配置
     * @access public
     */
    public function __construct(array $config = [])
    {
        $this->config = $config;

    }

    /**

     * @param Event  $event

     * @param Config $config

     * @return Db
     * @codeCoverageIgnore
     */
    public static function __make(Event $event, Config $config)

    {
        $db = new static($config->get('database'));
        $db = new static(/** @scrutinizer ignore-type */ $config->get('database'));

        $db->setEvent($event);

        return $db;
    }

    /**
     * 创建/切换数据库连接查询
     * @access public
     * @param string|null $name 连接配置标识

     * @param bool        $force 强制重新连接
     * @return BaseQuery
     */
    public function connect(string $name = null, bool $force = false): BaseQuery
    {
        $connection = $this->instance($name, $force);
        $connection->setDb($this);

        $class = $connection->getQueryClass();
        $query = new $class($connection);

        if (!empty($this->config['time_query_rule'])) {
            $query->timeRule($this->config['time_query_rule']);
        }

        return $query;
    }

    /**
     * 创建数据库连接实例
     * @access protected
     * @param string|null $name  连接标识
     * @param bool        $force 强制重新连接
     * @return Connection
     */
    protected function instance(string $name = null, bool $force = false): Connection
    {
        if (empty($name)) {
            $name = $this->config['default'] ?? 'mysql';
        }

        if ($force || !isset($this->instance[$name])) {
            if (!isset($this->config['connections'][$name])) {
                throw new InvalidArgumentException('Undefined db config:' . $name);
            }

            $config = $this->config['connections'][$name];
            $type   = !empty($config['type']) ? $config['type'] : 'mysql';

            $this->instance[$name] = App::factory($type, '\\think\\db\\connector\\', $config);
        }

        return $this->instance[$name];
    }

    /**
     * 使用表达式设置数据
     * @access public
     * @param string $value 表达式
     * @return Raw
     */
    public function raw(string $value): Raw
    {
        return new Raw($value);
    }

    /**
     * 更新查询次数
     * @access public
     * @return void
     */
    public function updateQueryTimes(): void
    {
        $this->queryTimes++;
    }

    /**
     * 重置查询次数
     * @access public
     * @return void
     */
    public function clearQueryTimes(): void
    {
        $this->queryTimes = 0;
    }

    /**
     * 获得查询次数
     * @access public
     * @return integer
     */
    public function getQueryTimes(): int
    {
        return $this->queryTimes;
    }

    /**
     * 监听SQL执行
     * @access public
     * @param callable $callback 回调方法
     * @return void
     */
    public function listen(callable $callback): void
    {
        $this->listen[] = $callback;
    }

    /**
     * 获取监听SQL执行
     * @access public
     * @return array
     */
    public function getListen(): array
    {
        return $this->listen;
    }

    /**
     * 设置Event对象
     * @param Event $event

     */

    public function setEvent(Event $event)
    {
        $this->event = $event;
    }

    /**
     * 注册回调方法
     * @access public
     * @param string   $event    事件名
     * @param callable $callback 回调方法
     * @return void
     */
    public function event(string $event, callable $callback): void
    {
        if ($this->event) {
            $this->event->listen('db.' . $event, $callback);
        }
    }

    /**
     * 触发事件
     * @access public
     * @param string $event  事件名
     * @param mixed  $params 传入参数
     * @param bool   $once

     * @return mixed
     */
    public function trigger(string $event, $params = null, bool $once = false)
    {
        if ($this->event) {
            return $this->event->trigger('db.' . $event, $params, $once);
        }
    }

    public function __call($method, $args)

    {
        return call_user_func_array([$this->connect(), $method], $args);
    }
}


top-think / framework

Push — 6.0 ( a1442b...a10566 )

Db::instance() A

Complexity

Size

Duplication

Code Coverage

Importance

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