demo/src/test/lib/Data.php

<?php
namespace Test\Lib;
use Dever;

class Data
{
    //public function test_commit(){}
    # 直接使用方法
    public function test()
    {
        $id = Dever::input('id', 'is_numeric', 'ID');
        # 取前10条
        $set['limit'] = '0, 10';
        # 获取字段
        $set['col'] = '*';
        # 排序
        $set['order'] = 'id desc';
        # 分组
        //$set['group'] = 'id';
        # 查询条件 注意，key值中的#号代表重复使用该字段，如果使用自定义方法没有此种情况
        $where['id'] = $id;
        /*

        # 模糊查询
        $where['name'] = array('like', 'test');
        # in查询
        $where['id#'] = array('in', '1');
        # 获取区间值
        $where['cdate'] = array('between', array(1,2));
        # 获取>1的数据
        $where['cdate#'] = array('>', 1);
        # 获取<2的数据
        $where['cdate##'] = array('<', 2);

        # 增加or查询
        $where['or'] = array
        (
            'name' => 'test1',
            'desc' => 'test',
        );
        # 增加or查询
        $where['or#'] = array
        (
            'name' => 'test1',
            'desc' => 'test',
        );
        # 增加or查询
        $where['or1'] = array
        (
            'name' => 'test1',
            'desc' => 'test',
        );

        # 联表查询
        $set['join'] = array
        (
            array
            (
                'table' => 'info',
                'type' => 'left join',
                'on' => 'info.goods_id=news.id',
            ),
        );
    
        # 常用方法
        # 支持大量数据的多条方法
        $data = Dever::db('news', 'demo')->load(array('id' => 1), $set);
        # 多条查询支持直接循环使用
        foreach($data as $k => $v) {
            $s[] = $v;
        }
        # 多条查询支持后续方法：fetch fetchAll rowCount fetchColumn
        $data = $data->fetchAll();
        # 多条查询 建议用limit，别查询太多
        $data = Dever::db('news', 'demo')->select(array('id' => 1), $set);
        # 单条查询
        $data = Dever::db('news', 'demo')->find(1);
        # 获取统计数据
        $data = Dever::db('news', 'demo')->count(array('id' => 1));
        $ 插入数据
        $data = Dever::db('news', 'demo')->insert(array('name' => 'xingxing'));
        # 更新数据
        $data = Dever::db('news', 'demo')->update(array('id' => 6), array('desc' => 'ceshi'));
        # 更新数据并num+1
        $data = Dever::db('news', 'demo')->update(array('id' => 1), array('desc' => '22222', 'num' => array('+', 1)));
        # 删除数据
        $data = Dever::db('news', 'demo')->delete(array('id' => 6));
        # sql形式 {table} 当前表名
        $data = Dever::db('news', 'demo')->query('select * from {table} limit 0, 5');
        
        # 分页
        $set['num'] = 10;
        # 只获取该页的数据
        //$set['page'] = 1;
        $data = Dever::db('news', 'demo')->select([], $set);

        # sql语句形式分页
        //$data = Dever::db('news', 'demo')->query('select * from {table} limit 0, 5', array(), $set);

        # 获取分页信息，list是分页模板名称，不传则不生成模板
        $page = Dever::page('list');
        print_r($page);die;

        $data = Dever::db('news', 'demo')->select(array('id' => 2), $set);

        # 自定义方法 getAll为自定义的方法
        $data = Dever::db('news', 'demo')->getAll(array('id1' => 2, 'state' => 2), $set);
        $data = Dever::db('news', 'demo')->updateNum(array('id' => 1), array('desc' => '22222', 'num' => 1));

        $data = Dever::db('news', 'demo')->insert(array('name' => 'xingxing2', 'num' => 1, 'desc' => '描述', 'cdate' => time()+86400));
        $where['id'] = 1;
        //$where['name1'] = 'xingxing';
        $data = Dever::db('news', 'demo')->select($where, $set);
        */
        # 悲观锁
        $data = Dever::db('news', 'demo')->select([], $set, true);
        # 乐观锁
        //$data = Dever::db('news', 'demo')->update(array('id' => 1), array('desc' => '22222', 'num' => array('+', 1)), true);
        return $data;
    }
}