Laravel 笔记
前言
记录 Laravel 开发中的问题，及笔记。
用法
Validator 类的用法
用法如下:
/**
* 修改用户信息
* @route api/user/modify
* @method post
* @param Request $request
* @return \Illuminate\Http\JsonResponse
*/
use Illuminate\Support\Facades\Validator;
public function modifyUserInfo(Request $request)
{
//自定义验证错误信息
$messages = [
'password.regex' => '密码必须为6-25位',
'avatar.url' => '头像必须为有效的url地址',
'birthday.date_format' => '生日必须为 YYYY-mm-dd 格式',
];
//验证
$validator = Validator::make($request->all(), [
'password' => 'regex:/^.{6,25}$/', //正则验证 如有多条不能用| 必须是数组 ['required','regex:/^[a-zA-Z0-9]$/']
'avatar' => 'url',
'birthday' => 'date_format:Y-m-d',
], $messages);
//以上验证通过后 继续验证
$validator->after(function ($validator) use ($request) { //use ($request) 后,在这个闭包里可以用 $request
$user = User::getUserByphone($request->mobile);
if (!$user) {
$validator->errors()->add('isUser', '此用户不存在');//添加错误信息
}
});
//如果验证不通过
if ($validator->fails()) {
return $this->error($validator->errors()->first());
}
$user = User::find($user_id);
$user->nickname = $request->nickname;
$user->password = User::generatePassword($request->password);
$user->avatar = $request->avatar;
$user->birthday = $request->birthday;
try {
$user->save();
return $this->success("操作成功");
} catch (\Exception $ex) { //\Exception 捕获所有异常
return $this->error($ex->getMessage()); // getMessage() 异常信息
}
}
Faker 生成测试数据
打开 app/database/factories/ModelFactory.php 用法如下：
$factory->define(App\User::class, function (Faker\Generator $faker) {
$faker = Faker\Factory::create('zh_CN'); //中文包
return [
'openid' => str_random(10),
'nickname' => $faker->name, //中文姓名
'mobile' => $faker->phoneNumber,
'avatar' => $faker->imageUrl(), //图片URL地址
'integral' => $faker->randomNumber(3), //随机3位整型(0-999)
'balance' => $faker->randomFloat(2, 0, 10000), //随机浮点数,2位小数点,最小0，最大10000
'birthday' => $faker->date(), //日期
'created_time' => $faker->unixTime(), //unix时间戳
'password' => App\User::generatePassword('haha123'), //可用模型方法生成数据
];
});
$factory->define(App\Product::class, function (Faker\Generator $faker) {
$faker = Faker\Factory::create('zh_CN');
//用模型生成要关联随机的数组
$seller = App\Seller::where('status', 1)->get()->toArray();
foreach ($seller as $value) {
$row[] = $value['id'];
}
return [
'product_no' => $faker->randomNumber(8),
'name' => '【测试商品】' . $faker->streetName,
'cate_id' => random_int(1, 6), //1-6随机int
'seller_id' => $faker->randomElement($row),//随机数组
'mod_id' => random_int(1, 10),
'price' => $faker->randomFloat(2, 1, 500),
'weight' => random_int(1, 100),
'img' => $faker->imageUrl('480','480'),//宽480 高480 的图片URL
'thumb' => $faker->imageUrl('480','480'),
'content' => '【测试商品内容】' . $faker->text(),
'is_point' => random_int(0, 1),
'is_new' => random_int(0, 1),
'is_recommend' => random_int(0, 1),
'is_sale' => random_int(0, 1),
'create_time' => $faker->unixTime(),
];
});
$factory->define(App\Seller::class, function (Faker\Generator $faker) {
$faker = Faker\Factory::create('zh_CN');
$user = App\User::all()->toArray();
foreach ($user as $value) {
$row[] = $value['id'];
}
return [
'user_id' => $faker->randomElement($row),
'seller_name' => $faker->colorName, //很有意境的中文色彩名
'corporate' => $faker->imageUrl(),
'business' => $faker->imageUrl(),
'create_time' => $faker->unixTime(),
];
});
然后用 php artisan tinker 进入 laravel 命令行
factory(App\Product::class,50)->create(); //生成 50 条 存入数据库
factory(App\User::class,50)->make(); //生成 50 条 不存入数库
模型文件
用法如下：
class Seller extends Model
{
protected $table = 'seller'; //定义表名
protected $hidden = ['corporate', 'business', 'province', 'city', 'county', 'address']; //all()方法不会被返回的字段
protected $appends = ['nickname', 'mobile']; //额外添加的返回信息 配合getColumnAttribute()方法得到。注意命名，如 nick_name 就是getNickNameAttribute()
protected $dates = ['create_time']; //需要被转换成日期的属性 Carbon 类
public $timestamps = false; //保存时不自动生成 created_at 与 updated_at 字段
public function getNicknameAttribute()
{
return $this->hasOne('App\User', 'id', 'user_id')->value('nickname'); // hasOne 一对一关系 id 是 to 表 user_id 是 本表
}
public function getCreateTimeAttribute()
{
$value = $this->attributes['create_time'];
return $value ? date('Y-m-d H:i:s', $value) : '';
}
public function getMobileAttribute()
{
return $this->hasOne('App\User', 'id', 'user_id')->value('mobile');
}
}
中间件用法
注册中间件，打开 app/Http/Kernel.php 用法如下：
class Kernel extends HttpKernel
{
/**
* 全局中间件
*/
protected $middleware = [
\Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
//\App\Http\Middleware\VerifyCsrfToken::class,
\Lib\ClusterSession\Middleware\StartSession::class,
];
/**
* 路由中间件
*/
protected $routeMiddleware = [
'access_control' => \App\Http\Middleware\AccessControl::class,
'api' => \App\Http\Middleware\Api::class,
'auth' => \App\Http\Middleware\Authenticate::class, //别名
'admin_auth' => \App\Http\Middleware\AdminAuthenticate::class,
'server_auth' => \App\Http\Middleware\ServerAuthenticate::class,
'CORS' => \App\Http\Middleware\CORS::class
];
}
创建 app/Http/Middleware/Authenticate.php 文件，如下：
class Authenticate
{
public function handle($request, Closure $next)
{
$value = SessionManager::get('user_id', null);
if(empty($value)){
return response()->json(['error' => '999', 'message' => '请先登录']);
}
return $next($request); //如果通过，去下一个请求
}
}
在 routes.php 中使用，如下：
// prefix 路由分组,middleware 中间件
Route::group(['prefix' => 'api', 'middleware' => ['access_control', 'api', 'CORS']], function () {
Route::post('/user/info', ['uses' => 'Api\UserController@info', 'middleware' => ['auth']]);//用户中心
Route::get('/user/address', ['uses' => 'Api\UserController@UserAddress', 'middleware' => ['auth']]);//个人收货地址列表
Route::get('/user/address/info', ['uses' => 'Api\UserController@UserAddressInfo', 'middleware' => ['auth']]);//获取收货地址详情
Route::post('/user/address/post', ['uses' => 'Api\UserController@UserAddressPost', 'middleware' => ['auth']]);//获取收货地址详情
Route::post('/user/address/delete', ['uses' => 'Api\UserController@UserAddressDelete', 'middleware' => ['auth']]);//获取收货地址详情
Route::post('/user/modify', ['uses' => 'Api\UserController@modifyUserInfo', 'middleware' => ['auth']]);//获取收货地址详情
Route::post('/message/send', 'Api\SmsController@send');//发送短信
Route::post('/upload/configure', 'Api\DefaultController@upload');//发送短信
Route::post('/user/register', 'Api\UserController@register');//用户注册接口
Route::post('/user/login', 'Api\UserController@login');//用户注册接口
Route::post('/user/signout', 'Api\UserController@signout');//退出接口
}
事务用法
数据库引擎必须为 InnoDB 用法如下：
public function test(Request $request){
$car = new Car();
$car->user_id = $request->get('user_id');
$car->product_id = $request->get('product_id');
$car->product_sku_id = $request->get('product_sku_id');
$car->product_num = $request->get('product_num');
DB::beginTransaction(); //开始
try
{
$car->save();
$success = 1;
}catch (\Exception $ex){
DB::rollback(); //回滚
$success = 0;
}
DB::commit(); //提交
return $success ? $this->success("操作成功") : $this->error("操作失败");
}
问题
paginate 分页
看文档以为最后的数据是 data ，其实是 items 方法，如下：
public function showApi(Request $request)
{
$limit = $request->get('limit');
//$page = $request->get('page');
$results = Seller::paginate($limit); //无须接收 $page ,laravel 自动接收
//$results = Seller::forPage($page,$limit)->get(); 或者用这种
return response()->json(['code' => 0, 'data' => $results->items(), 'count' => $results->total()]);
}
临时显示隐藏属性
Laravel 5.1 中没有makeVisible 和 makeHidden 方法来临时显示或隐藏属性，打开 /vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php 文件。添加如下两个方法：
public function makeVisible($attributes = null)
{
$attributes = is_array($attributes) ? $attributes : func_get_args(); //func_get_args() 把函数接收到的参数转为数组
$arr = array_diff($this->hidden,$attributes); //array_diff($arr1,$arr2) 计算数组差集 这里用作删除元素，如：
//$arr1 = ['0' =>'a','1'=> 'b','2'=>'c'];
//$arr2 = ['0' => 'b'];
//return array_diff($arr1,$arr2);
// ['0'=>'a','2'=>'c'];
$this->hidden = $arr;
return $this; //由于最后return $this; 此方法在末尾调用有效
}
public function makeHidden($attributes = null)
{
$attributes = is_array($attributes) ? $attributes : func_get_args();
$visible = array_diff($this->visible,$attributes);
$appends = array_diff($this->appends,$attributes);
$hidden = array_merge($this->hidden,$attributes);
$this->visible = $visible;
$this->appends = $appends;
$this->hidden = $hidden;
return $this;
}
只能用于 find 方法，where 构造查询报错，我也很绝望啊。示例：
public function test(Request $request)
{
$id = $request->get('id');
$pro = Product::find($id)->makeHidden('seller_id');
return response()->json($pro);
}
树状分类
public static function tree($data,$pid=0,$level=0){
$results = array();
foreach ($data as $value){
// 递归点 如果当前记录的父 id 等于传入的父 id ，说明这个记录是传入父 id 的子级
if($value['p_id'] == $pid){
$value['level'] = $level;
//递归调用，获得子级下的子级
$value['children'] = self::tree($data,$value['id'],$level + 1);
//push把以上结果赋给返回数据
$results[] = $value;
}
//递归出口：遍历完成。
}
//返回结果集
return $results;
}
自增字段值
相当于 update table set column = column + :value where user_id = :user_id ，用法如下：
$car = Car::where('user_id',$user_id)->where('product_id',$product_id)->where('product_sku_id',$product_sku_id)->first();
if(empty($car)) {
$car = new Car();
$car->user_id = $user_id;
$car->product_id = $product_id;
$car->product_sku_id = $product_sku_id;
$car->product_num = $product_num;
}else{
$car->increment('product_num',$product_num); //自增字段值
}
模型括号查询
相当于 select * from queue_second_sold where status=0 and (buy_user_id = 341 or (sell_user_id = 341 and buy_user_id != 0)) order by id desc,用法如下:
/**
* 交易大厅-定向交易
* @param Request $request
* @return \Illuminate\Http\JsonResponse
*/
public function soldList(Request $request){
$type = $request->get('type',0); //交易大厅
$limit = $request->get('limit',10);
$user = User::getUserInfo();
if($type == 1){ //定向交易
$results = QueueSecondSold::where('status',0)
->where(function($query) use ($user){
$query->where('sell_user_id',$user->id)
->where('buy_user_id','!=',0);
})->orWhere('buy_user_id',$user->id)
->orderBy('id','desc')->paginate($limit);
}else{
$results = QueueSecondSold::where('status',0)->where('buy_user_id',0)->orderBy('id','desc')->paginate($limit);
}
return $this->success(['result'=>$results->items(),'total'=>$results->total(),'page'=>$results->currentPage(),'pages'=>$results->lastPage(),'user_id'=>$user->id]);
}
模型连接查询
相当于 select count(*) from user as a left join chunk as b on a.id=b.user_id where a.parent_id = 341
$chunk_count = User::leftJoin('chunk','user.id','=','chunk.user_id')->where('user.parent_id',$user->parent_id)->count();
列值查询
$search_user = User::where('mobile','like','%'.$mobile.'%')->get()->pluck('id');
ElasticSearch 问题及用法
出现 index.max_result_window 报错的解决办法
curl -XPUT "http://localhost:9200/my_index/_settings" -d '{ "index" : { "max_result_window" : 100000000 } }'
搜索封装
public static function SearchAccountLogEs($must = array(),$must_not = array(),$should = array(),$aggs = array(),$size = 10,$page = 1,$sort = array(),$debug = false){
$index = Config::get('elasticsearch.index');
$type = 'accountlog';
$must = $must ?? array();
$must_not = $must_not ?? array();
$should = $should ?? array();
$aggs = $aggs ?? array();
$sort = $sort ?? array();
$from = ($page - 1) * $size;
$params = [
'index'=>$index,
'type' => $type,
'body'=>[
'query'=>[
'bool'=>[
'must'=>$must,
'must_not'=>$must_not,
// 'should' => $should
]
]
// 'aggs'=>$aggs,
],
'size' => $size,
'from' => $from
];
$client = ClientBuilder::create()
->setHosts( Config::get( 'elasticsearch.hosts' ) )
->setRetries( 2 )
->build();
if(!empty($aggs)){
$params['body']['aggs'] = $aggs;
}
if(!empty($should)){
$params['body']['query']["bool"]["should"] = $should;
$params['body']['query']["bool"]["minimum_should_match"] = 1;
}
if(!empty($sort)){
$params['body']['sort'] = array($sort);
}
if($debug == true)
return $params;
$response = $client->search($params);
$results = array(
'total' => $response['hits']['total'],
// key($aggs) => $response['aggregations'][key($aggs)]['value']
);
if (!empty($aggs)){
$results[key($aggs)] = $response['aggregations'][key($aggs)]['value'];
}
$results['data'] = [];
foreach ($response['hits']['hits'] as $key => $value){
$results['data'][] = $value['_source'];
}
return $results;
}
更新封装
public static function updateAccountLogEs($log)
{
$other = User::find($log->user_id);
//更新ES索引
$client = ClientBuilder::create()
->setHosts(Config::get('elasticsearch.hosts'))
->setRetries(2)
->build();
$index = Config::get('elasticsearch.index');
$type = 'accountlog';
$params = [
'index' => $index,
'type' => $type,
'id' => $log->id
];
try {
$client->delete($params);
}catch (\Exception $ex){}
$params = [
'index' => $index,
'type' => $type,
'id' => $log->id,
'body' => [
'id' => $log->id,
'user_id' => $log->user_id,
'user_money' => $log->user_money,
'user_money1' => $log->user_money1,
'user_money3' => $log->user_money3,
'frozen_money' => $log->frozen_money,
'letter_of_credit' => $log->letter_of_credit,
'shop_letter_credit' => $log->shop_letter_credit,
'rank_points' => $log->rank_points,
'pay_points' => $log->pay_points,
'created_time' => $log->time,
'info' => $log->info,
'province_id' => $other->province_id,
'city_id' => $other->city_id,
'county_id' => $other->county_id,
'industry_id' => $other->industry_id,
'parent_id' => $other->parent_id,
'type' => $log->type
]
];
$client->index($params);
}
Laravel-Excel 插件用法
安装
1.composer 安装
composer require "maatwebsite/excel:~2.1.0"
2.安装完成后，修改 config/app.php 在 providers 数组内追加如下内容
Maatwebsite\Excel\ExcelServiceProvider::class,
3.同时在 aliases 数组内追加如下内容:
'Excel' => Maatwebsite\Excel\Facades\Excel::class,
4.生成配置文件 config/excel.php :
php artisan vendor:publish --provider="Maatwebsite\Excel\ExcelServiceProvider"
用法
解析 Excel 文件
ini_set ('memory_limit', '1024M');
$data = Excel::load('excel.xlsx',function ($reader){
},'UTF-8')->toArray();
将数据导成 Excel 文件
// 导出 Excel 并能直接在浏览器下载
# $export_file_name = 要生成的文件名
Excel::create($export_file_name, function ($excel) {
$excel->sheet('Sheetname', function ($sheet) {
$sheet->appendRow(['name', 'age']);
$sheet->appendRow(['LiLei', '22']);
$sheet->appendRow(['HanMeimei', '22']);
});
})->download('xls');
// 导出 Excel 并存储到指定目录
Excel::create($export_file_name, function ($excel) {
$excel->sheet('Sheetname', function ($sheet) {
$sheet->appendRow(['name', 'age']);
$sheet->appendRow(['LiLei', '22']);
$sheet->appendRow(['HanMeimei', '22']);
});
})->store('xls', $path);