[TOC]
在后臺(tái)簡(jiǎn)單的單表操作薪铜，我們一般會(huì)像下面這樣執(zhí)行curd:
改造前的controller文件
<?php
namespace App\Http\Controllers\Admin;
use App\Entity\Carmodel;
use App\Entity\Washfee;
use App\Entity\Washtype;
use App\Http\Requests\Admin\WashFeeRequest;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
class WashFeesController extends Controller
{
public function index()
{
}
public function create(){
return view('admin.washFees.create');
}
public function store(WashFeeRequest $washFeeRequest)
{
$data = [
'car_id' => $washFeeRequest->car_id,
'wash_id' => $washFeeRequest->wash_id,
'price' => $washFeeRequest->price,
'create_time' => time(),
];
if (!Washfee::create($data)) {
$msg = '創(chuàng)建失敗';
}else{
$msg = '創(chuàng)建成功';
}
session()->flash('msg',$msg);
return redirect()->route('washfees.index');
}
public function edit(Washfee $washfee){
return view('admin.washFees.edit',compact('washfee');
}
public function update(WashFeeRequest $washFeeRequest, Washfee $washfee)
{
if ($washFeeRequest->isMethod('PUT')) {
$washfee->car_id = $washFeeRequest->car_id;
$washfee->wash_id = $washFeeRequest->wash_id;
$washfee->price = $washFeeRequest->price;
if (!$washfee->save()) {
$msg = '修改失敗';
}else{
$msg = '修改成功';
}
}
session()->flash('msg', $msg);
return redirect()->route('washfees.index');
}
public function destroy(Washfee $washfee)
{
if (!$washfee->delete()) {
$msg = '刪除失敗';
} else {
$msg = '刪除成功';
}
session()->flash('msg', $msg);
return redirect()->back();
}
}
我們發(fā)現(xiàn)所有的單表操作里面蜘腌，store\update\destroy 這幾個(gè)方法幾乎都是一樣的，所以可以抽取這些方法的共性來(lái)提升我們的代碼可復(fù)用性彼妻。
前置條件：
- 所有的model都需要設(shè)置fillable這個(gè)屬性仰挣，至于為什么饭于，后面說(shuō)
- 所有的controller的模型驗(yàn)證都是通過(guò)request類(lèi)來(lái)進(jìn)行驗(yàn)證的
- 建立通用的curd trait
改造后的代碼：
- model文件
<?php
namespace App\Entity;
use Illuminate\Database\Eloquent\Model;
class AuthGroup extends Base
{
protected $table = 'auth_group';
protected $fillable = ['title','description','status','rules','deleted_at'];//此處必須設(shè)置
}
- request文件
<?php
namespace App\Http\Requests\Admin;
use Illuminate\Foundation\Http\FormRequest;
class AuthGroupRequest extends FormRequest
{
public function authorize()
{
return true;
}
public function rules()
{
$authGroup = $this->route('authGroup');
return [
'title' => 'required|min:2|unique:auth_group,title,' . $authGroup['id'] . ',id',
'description' => 'nullable',
'status' => 'between:0,1'
];
}
}
- 新增加的commonCurd文件
<?php
namespace App\Http\Controllers\Admin;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Foundation\Http\FormRequest;
trait CommonCURD
{
public function commonUpdate(FormRequest $request, Model $model)
{
//循環(huán)model的fillable，如果request存在該鍵撬码，則更新
foreach ($model->getFillable() as $key) {
if ($request->has($key)) {
$model->$key = $request->$key;
}
}
//保存
if (!$model->save()) {
$msg = '修改失敗';
session()->flash('msg', $msg);
} else {
$msg = '修改成功';
session()->flash('msg', $msg);
}
}
public function commonStore(FormRequest $request, $model)
{
$data = [];
$m = new $model;
foreach($m->getFillable() as $key){
if($request->has($key)){
$data[$key] = $request->$key;
}
}
if (!$model::create($data)) {
$msg = '創(chuàng)建失敗';
}else{
$msg = '創(chuàng)建成功';
}
session()->flash('msg',$msg);
}
public function commonDestroy(Model $model)
{
if (!$model->delete()) {
$msg = '刪除失敗';
} else {
$msg = '刪除成功';
}
session()->flash('msg', $msg);
}
}
- 改造后的controller文件儿倒，我用了另一個(gè)文件演示改造后的代碼
<?php
namespace App\Http\Controllers\Admin;
use App\Entity\AuthGroup;
use App\Http\Requests\Admin\AuthGroupRequest;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
class AuthGroupsController extends Controller
{
use CommonCURD;//引入trait
public function index()
{
}
public function create()
{
$title = '用戶(hù)組';
return view('admin.authGroups.create', compact('title'));
}
public function store(AuthGroupRequest $authGroupRequest)
{
//改造后代碼
$this->commonStore($authGroupRequest，WashFee::class);
return redirect()->route('authGroups.index');
}
public function edit(AuthGroup $authGroup)
{
$title = '用戶(hù)組';
return view('admin.authGroups.edit', compact('title', 'authGroup'));
}
public function update(AuthGroupRequest $authGroupRequest, AuthGroup $authGroup)
{
//改造后的代碼呜笑，如果該model屬性多的話(huà)可以減少很多的代碼量
$this->commonUpdate($authGroupRequest, $authGroup);
return redirect()->route('authGroups.index');
}
public function destroy(AuthGroup $authGroup)
{
$this->commonDestroy($authGroup);
return redirect()->route('authGroups.index');
}
}
下面是我在提交update時(shí)打印的數(shù)據(jù)：
image.png
可以看到原始數(shù)據(jù)和修改后的數(shù)據(jù)夫否，并且沒(méi)有提交的數(shù)據(jù)是不變的（有些字段在表單里面沒(méi)有）
