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                > ## 在控制器中調用模型進行添加數據 ### 1. 添加一條數據《save方法新增數據返回的是寫入的記錄數。》 ```php // 注意不要在同一個實例里面多次新增數據,如果實在需要,第二次開始必須使用下面的方式新增 $user->isUpdate(false)->save(); // 使用model助手函數可以快速實例化一個單例的模型對象,不需要特意引入模型類 $user = model('User'); // 1.如果為少量字段直接賦值 $user = new User; $user->name = 'thinkphp'; $user->save(); // 2. 如果為多個字段支持傳入數組 $user = new User; $user->data([ 'name' => 'thinkphp', 'email' => 'thinkphp@qq.com' ]); $user->save(); // 還可以直接在實例化的時候傳入(這種簡單) $user = new User([ 'name' => 'thinkphp', 'email' => 'thinkphp@qq.com' ]); $user->save(); // 3. 插入前過濾非數據表字段 user = new User($_POST); $user->allowField(true)->save(); // 4. 限制指定字段可以插入 $user = new User($_POST); $user->allowField(['name','email'])->save(); ``` ### 2. 添加多條數據《saveAll方法新增數據返回的是包含自增id的數據集。》 ``` // saveAll方法會自動判斷更新還是新增,當數據包含主鍵時會被認為更新,當不包括主鍵時被認為是新增 $user = new User; $list = [ ['name'=>'thinkphp','email'=>'thinkphp@qq.com'], ['name'=>'onethink','email'=>'onethink@qq.com'] ]; $user->saveAll($list); // 強制插入非更新,那么 $user = new User; $list = [ ['id'=>1, 'name'=>'thinkphp', 'email'=>'thinkphp@qq.com'], ['id'=>2, 'name'=>'onethink', 'email'=>'onethink@qq.com'], ]; $user->saveAll($list, false); ``` ### 3. 使用靜態方法添加數據(create方法返回的是當前模型的對象實例。) ```php $user = User::create([ 'name' => 'thinkphp', 'email' => 'thinkphp@qq.com' ]); echo $user->name; echo $user->email; echo $user->id; // 獲取自增ID ``` > ## 在模型中獲取自增的主鍵id ```php $user = new User; $user->name = 'thinkphp'; $user->save(); // 獲取自增ID echo $user->id; // 如果表中的字段不是id,而是user_id,那么 echo $user->user_id; ```
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