簡(jiǎn)介

一個(gè)簡(jiǎn)單、快速的基于PHP和PDO的數(shù)據(jù)庫(kù)中間層

感覺(jué)使用Laravel ORM和ThinkORM麻煩的可以試試這個(gè)

安裝

composer require tomener/svickorm

安裝后將自動(dòng)生成 config/svickorm.php 數(shù)據(jù)庫(kù)配置文件，開(kāi)發(fā)者需要根據(jù)實(shí)際情況手動(dòng)更改數(shù)據(jù)庫(kù)配置。

數(shù)據(jù)庫(kù)

<?php

namespace app\controller;

use support\Request;
use Svickorm\Db;

class Index
{
    public function db(Request $request)
    {
        $id = $request->getInt('id');
        $p = $request->getInt('p', 1);

        //查詢所有字段
        $user = Db::table('user')->where($id)->row();

        //查詢指定字段
        $user = Db::table('user')->where($id)->row('id, nickname');

        //查詢列表
        $page = ['limit' => 10, 'p' => $p];
        $users = Db::table('user')->where(['status' => 1, 'level' => ['>', 1]])
            ->select('id, nickname')
            ->page($page)
            ->orderBy('level DESC')
            ->list();

        return result(0, 'OK', [
            'info' => $user,
            'list' => $users,
            'page' => $page,
        ]);
    }
}

模型

模型文件

模型文件可以放在/app/model下面，也可以單獨(dú)創(chuàng)建一個(gè)user文件夾，放在user文件夾下面，svickorm模型繼承Svickorm\Model，類似如下

<?php

namespace app\model\user;

use Svickorm\Model;

class User extends Model
{

}

使用模型

<?php

namespace app\controller;

use app\model\user\User;
use support\Request;
use Svickorm\Db;

class Index
{
    public function list(Request $request)
    {
        $id = $request->getInt('id');
        $p = $request->getInt('p', 1);

        //查詢所有字段
        $user = User::where($id)->row();
        // 或者
        $user = User::find($id);

        //查詢指定字段
        $user = User::where($id)->row('id, nickname');
        //或者
        $user = User::find($id, 'id, nickname');

        //查詢列表
        $page = ['limit' => 10, 'p' => $p];
        $users = User::where(['status' => 1, 'level' => ['>', 2]])
            ->select('id, nickname')
            ->page($page)
            ->orderBy('level DESC')
            ->list();

        return result(0, 'OK', [
            'info' => $user,
            'list' => $users,
            'page' => $page,
        ]);
    }
}

查詢一列

$user_ids = [1, 5, 8];
$user_map = User::where(['id' = ['in', $user_ids]])->column('name');
/**
['lucy', 'candy', 'tommy']
*
$user_map = User::where(['id' = ['in', $user_ids]])->column('name', 'id');
//輸出
/**
[
    [1] => 'lucy',
    [5] => 'candy',
    [8] => 'tommy',
]
*/

$user_map = User::where(['id' = ['in', $user_ids]])->column('name, level', 'id');
//輸出
/**
[
    [1] => ['name' => 'lucy', 'level' => 2],
    [5] => ['name' => 'candy', 'level' => 1],
    [8] => ['name' => 'tommy', 'level' => 5],
]
*/

獲取字段值

$id = 5;
$name = User::where($id)->value('name');

插入數(shù)據(jù)

User::insert(['name' => 'bob', 'level' => 2]);
User::insertAll([
    ['name' => 'bob', 'level' => 2],
    ['name' => 'weky', 'level' => 1]
]);

更新數(shù)據(jù)

$uid = 100;
User::where($uid)->update([
    'level' => 5,
    'nickname' => 'womeen',
    'score' => ['+', 5]
]);

User::where($uid)->inc('score');
User::where($uid)->dec('score', 5);

統(tǒng)計(jì)（sum count avg max min）

$where = ['level' => 2, 'status' => 1];
User::where($where)->sum('money');
User::where($where)->count();
User::where($where)->avg('score');
User::where($where)->max('score');
User::where($where)->min('score');

刪除

$uid = 100;
User::where($uid)->delete();

連表查詢

$page = ['limit' => 10, 'p' => 1];
$admins = Db::table('admin')->alias('a')
    ->join('user u', 'a.uid = u.id')
    ->select('a.id, a.uid, a.name, u.nickname')
    ->where('a.status', 1)
    ->where(['u.level' => 2, 'u.status' => 1])
    ->page($page)
    ->list()

事務(wù)

//開(kāi)啟事務(wù)
User::connection()->startTrans();

//回滾事務(wù)
User::connection()->rollback();

//提交事務(wù)
User::connection()->commit();

獲取最后一條SQL

User::connection()->getLastSql();

檢測(cè)連接是否可用

User::connection()->ping()

設(shè)置排它鎖（X鎖）

$id = 100;
$num = 2;
User::where(['id' => $id, 'stock' => ['>=', $num]])
    ->forUpdate()
    ->update([
        'stock' => ['-', $num]
    ]);

更多方法請(qǐng)參考 使用文檔