在这里，我面临着数据库中重复条目的问题。我在控制器中设置了一个唯一的患者id，我想添加具有相同电子邮件但唯一电话号码的用户。
我在控制器功能中所做的和尝试：

public function store(Request $request) {    
    $validator = \Validator::make($request->all(), [
        'name' => 'required',
        'email' => 'required|email',
        'phone'=>'required|min:11|numeric|unique:patients',
        'birth_date' => 'required',
        'gender' => 'required',
        'address' => 'required',
    ]);

    if ($validator->fails()) {
        $errors = $validator->errors();
        return $errors->toJson();
    } else {
        $fileNameToStore = 'defaultimg/avatar.png';
        $post = new patient;
        $post->name = $request->input('name');
        $post->email = $request->input('email');
        $post->picture = $fileNameToStore;
        $post->birth_date = $request->input('birth_date');
        $post->gender = $request->input('gender');
        $address = htmlspecialchars($request->input('address'));
        $post->address = $address;
        $post->patient_id = 'PID' . rand(999, 9999999999999);
        $post->phone = $request->input('phone');
        $post->save();

        return response(array(
            'error' => false,
            'message' => 'Patient added successfully', 'patientid' => $post->patient_id,), 200);
    }
}

一切都按照我的要求正常工作，但代码引发以下异常：
queryexception sqlstate[23000]：完整性约束冲突：1062重复条目'front@gmail.com“对于关键患者\u电子邮件\u唯一”
这是我的移民计划 patients 表格：

Schema::create('patients', function (Blueprint $table) {
    $table->increments('id');
    $table->string('name');
    $table->string('email')->unique();
    $table->string('birth_date');
    $table->string('gender');
    $table->string('address');
    $table->string('patient_id');
    $table->string('picture');
    $table->string('phone')->unique();
    $table->rememberToken();
    $table->timestamps();
});