ThinkPHP5.0 模型新增操做

1、新增數據操做以下：

1.第一種是實例化模型對象後賦值並保存：

$user           = new User;
$user->name     = 'thinkphp';
$user->email    = 'thinkphp@qq.com';
$user->save();

2.第二種使用data方法批量賦值：

$user = new User;
$user->data([
    'name'  =>  'thinkphp',
    'email' =>  'thinkphp@qq.com'
]);
$user->save();

3.直接在實例化的時候傳入數據

$user = new User([
    'name'  =>  'thinkphp',
    'email' =>  'thinkphp@qq.com'
]);
$user->save();

4.過濾非數據表字段的數據

$user = new User($_POST);
// 過濾post數組中的非數據表字段數據
$user->allowField(true)->save();

5.經過外部提交賦值給模型，而且但願指定某些字段寫入

$user = new User($_POST);
// post數組中只有name和email字段會寫入
$user->allowField(['name','email'])->save();

6.獲取自增ID

$user           = new User;
$user->name     = 'thinkphp';
$user->email    = 'thinkphp@qq.com';
$user->save();
// 獲取自增ID
echo $user->id;
//若是自增ID不是id而是u_id等,那麼獲取自增ID應該是u_id
echo $user->u_id;

7.添加多條數據

$user           = new User;
$user->name     = 'thinkphp';
$user->email    = 'thinkphp@qq.com';
$user->save();
$user->name     = 'onethink';
$user->email    = 'onethink@qq.com';
// 第二次開始必須使用下面的方式新增
$user->isUpdate(false)->save();

8.支持批量新增，能夠使用

$user = new User;
$list = [
    ['name'=>'thinkphp','email'=>'thinkphp@qq.com'],
    ['name'=>'onethink','email'=>'onethink@qq.com']
];
$user->saveAll($list);

9.saveAll方法新增數據默認會自動識別數據是須要新增仍是更新操做，當數據中存在主鍵的時候會認爲是更新操做，若是你須要帶主鍵數據批量新增，那麼要以下設置參數

$user = new User;
$list = [
    ['id'=>1, 'name'=>'thinkphp', 'email'=>'thinkphp@qq.com'],
    ['id'=>2, 'name'=>'onethink', 'email'=>'onethink@qq.com'],
];
$user->saveAll($list, false);

10.經過遍歷批量新增數據，能夠參考下面的方法：

$user = new User;
$list = [
    ['name'=>'thinkphp','email'=>'thinkphp@qq.com'],
    ['name'=>'onethink','email'=>'onethink@qq.com']
];
foreach($list as $data){
    $user->data($data,true)->isUpdate(false)->save();
}

11.靜態調用create方法建立並寫入

$user = User::create([
    'name'  =>  'thinkphp',
    'email' =>  'thinkphp@qq.com'
]);
echo $user->name;
echo $user->email;
echo $user->id; // 獲取自增ID

12.系統提供了model助手函數用於快速實例化模型，而且使用單例實現，例如：

// 使用model助手函數實例化User模型
$user = model('User');
// 模型對象賦值
$user->data([
    'name'  =>  'thinkphp',
    'email' =>  'thinkphp@qq.com'
]);
$user->save();

13.進行批量新增

$user = model('User');
// 批量新增
$list = [
    ['name'=>'thinkphp','email'=>'thinkphp@qq.com'],
    ['name'=>'onethink','email'=>'onethink@qq.com']
];
$user->saveAll($list);