Detailed explanation of thinkPHP database addition, deletion, modification and query operation method examples

$Model = new Model(); // 实例化一个model对象 没有对应任何数据表
$insert_sql = "INSERT INTO sh_wxuser_collection (user_id,store_id,good_id,addtime) VALUES('".$user_id."','".$store_id."','".$good_id."','".$addtime."');";
$Model - >query($insert_sql);

$model = M('wxuser_collection'); //自动省去sh
$insert_sql = "INSERT INTO __TABLE__ (user_id,store_id,good_id,addtime) VALUES('".$user_id."','".$store_id."','".$good_id."','".$addtime."');";
$model - >query($insert_sql);

$model = M('WxuserCollection'); //自动省去sh
$insert_sql = "INSERT INTO __TABLE__ (user_id,store_id,good_id,addtime) VALUES('".$user_id."','".$store_id."','".$good_id."','".$addtime."');";
$model - >query($insert_sql);

$model = M('WxuserCollection');
$data = array('user_id' = >$user_id, 'store_id' = >$store_id, 'good_id' = >$good_id, 'addtime' = >$addtime);
$model - >data($data) - >add();

$model = M('WxuserCollection');
$data = array('user_id' = >$user_id, 'store_id' = >$store_id, 'good_id' = >$good_id, 'addtime' = >$addtime);
$model - >data($data) - >where('id=3') - >save();

$model = M('WxuserCollection');
$res1 = $model - >find(1);
$res2 = $model - >find(2);
$res3 = $model - >where('good_id=1105 AND store_id = 1 AND user_id = 20') - >find();

$model = M('WxuserCollection');
$res = $model - >where('good_id=1105 AND store_id = 1 AND user_id = 20') - >field('id,good_id as good') - >select();

$model = M('WxuserCollection');
$res = $model - >where('id=1') - >delete(); // 成功返回1 失败返回0

$model = M('WxuserCollection');
$res = $model - >field('id,good_id as good') - >select();
$res = $model - >field(array('id', 'good_id' = >'good')) - >select();
$res = $model - >field('id', true) - >select();

$model = M('WxuserCollection');
$res = $model - >order('id desc') - >select();
$res = $model - >order('id asc') - >select();
$res = $model - >order(array('id' = >'desc')) - >select();
$res = $model - >order(array('id')) - >select();

$Model->join(' work ON artist.id = work.artist_id')->join('card ON artist.card_id = card.id')->select();
$Model->join('RIGHT JOIN work ON artist.id = work.artist_id')->select();
$Model->join(array(' work ON artist.id = work.artist_id','card ON artist.card_id = card.id'))->select();

$User = M("User"); // 实例化User对象
$User->where('id=5')->setInc('score',3); // 用户的积分加3
$User->where('id=5')->setInc('score'); // 用户的积分加1
$User->where('id=5')->setDec('score',5); // 用户的积分减5
$User->where('id=5')->setDec('score'); // 用户的积分减1

$User = M("User"); // 实例化User对象
// 获取ID为3的用户的昵称
$nickname = $User->where('id=3')->getField('nickname');

$User = M("User"); // 实例化User对象
// 获取status为1的用户的昵称列表
$nickname = $User->where('status=1')->getField('nickname',true);

$nickname = $User->where('status=1')->getField('nickname',8);

$User = M("User"); // 实例化User对象
 // 获取status为1的用户的昵称列表
$nickname = $User->where('status=1')->getField('id,nickname');

$result = $User->where('status=1')->getField('id,account,nickname');

$where = array('a.store_id' => $this->store_id, 'a.user_id' => $this->user_id);
$collects = $this->collectModel->table("sh_wxuser_collection a")->field(array('b.name','b.price','b.oprice','b.logoimg','a.goods_id'))->limit($start, $offset)->order('a.addtime DESC')->where($where)->join(' sh_goods b ON a.goods_id = b.id')->select();// 获取当前页的记录
echo M()->getLastSql(); // 调试sql语句用
$count = $this->collectModel->table("sh_wxuser_collection a")->where($where)->count(); // 获取总的记录数

field('b.name', 'b.price', 'b.oprice', 'b.logoimg', 'a.goods_id') // 错误

echo M()->getLastSql();