100 (and counting) Laravel Quick Tips Prepared by: Povilas Korop / LaravelDaily Team www.laraveldaily.com povilas@laraveldaily.com Last updated: April 2020 www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ History of changes April 20, 2020: April 28, 2019: November 8, 2018 October 9, 2018 : 10 more tips, total 50 now : Book release with 40 tips 40 more tips, total 100 now (removed duplicated, updated some old ones) 10 more tips, total 60 now Tip 1. Single Action Controllers If you want to create a controller with just one action, you can use even create "invokable" controller. __invoke() method and User::findOrFail($id)]); } } Routes: Route::get('user/{id}', 'ShowProfile'); Artisan command to generate this controller: php artisan make:controller ShowProfile --invokable Tip 2. Unsigned Integer For foreign key migrations instead of integer()->unsigned() , otherwise you may get SQL errors. integer() use unsignedInteger() type or www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ unsignedInteger Schema::create('employees', function (Blueprint $table) { $table-> ('company_id'); $table->foreign('company_id')->references('id')->on('companies'); // ... }); You can also use ​unsignedBigInteger() if that other column is ​bigInteger() type. Schema::create('employees', function (Blueprint $table) { $table-> }); unsignedBigInteger ('company_id'); Tip 3. OrderBy on Eloquent relationships You can specify orderBy() directly on your Eloquent relationships. public function products() { return $this->hasMany(Product::class); } public function productsByName() { return $this->hasMany(Product::class)->orderBy('name'); } Tip 4. Order of Migrations If you want to change the order of DB migrations, just rename the file's timestamp, like from 2018_08_04_070443_create_posts_table.php 2018_07_04_070443_create_posts_table.php ). They run in alphabetical order. 2018_07_04 ​ to (changed from to 2018_08_04 ​ www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 5. Raw DB Queries: havingRaw() You can use RAW DB queries in various places, including groupBy() . havingRaw() function after Product::groupBy('category_id')->havingRaw('COUNT(*) > 1')->get(); Tip 6. $loop variable in foreach Inside of foreach loop, check if current entry is first/last by just using $loop variable. @foreach ($users as $user) @if ($loop->first) This is the first iteration. @endif @if ($loop->last) This is the last iteration. @endif

This is user {{ $user->id }}

@endforeach There are also other properties like More here: https://laravel.com/docs/master/blade#the-loop-variable $loop->iteration or $loop->count . Tip 7. Eloquent where date methods In Eloquent, check the date with functions whereDate() whereTime() and . whereDay() , whereMonth() , whereYear() , $products = Product::whereDate('created_at', '2018-01-31')->get(); $products = Product::whereMonth('created_at', '12')->get(); $products = Product::whereDay('created_at', '31')->get(); $products = Product::whereYear('created_at', date('Y'))->get(); $products = Product::whereTime('created_at', '=', '14:13:58')->get(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 8. Route group within a group in Routes, you can create a group within a group, assigning a certain middleware only to some URLs in the "parent" group. Route::group(['prefix' => 'account', 'as' => 'account.'], function() { Route::get('login', 'AccountController@login'); Route::get('register', 'AccountController@register'); Route::group(['middleware' => 'auth'], function() { Route::get('edit', 'AccountController@edit'); }); }); Tip 9. Increments and decrements if you want to increment some DB column in some table, just use and you can increment not only by 1, but also by some number, like 50. increment() function. Oh, Post::find($post_id)->increment('view_count'); User::find($user_id)->increment('points', 50); Tip 10. Does view file exist? You can check if View file exists before actually loading it. if (view()->exists('custom.page')) { // Load the view } You can even load an array of views and only the first existing will be actually loaded. return view()->first(['custom.dashboard', 'dashboard'], $data); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ Tip 11. No timestamp columns If your DB table doesn't contain timestamp fields specify that Eloquent model wouldn't use them, with created_at and $timestamps = false updated_at property. , you can class Company extends Model { public $timestamps = false; } Tip 12. Migration fields with timezones Did you know that in migrations there's not only the timezone? timestamps() but also timestampsTz() , for Schema::create('employees', function (Blueprint $table) { $table->increments('id'); $table->string('name'); $table->string('email'); $table->timestampsTz(); }); Also, there are columns dateTimeTz() , timeTz() , timestampTz() , softDeletesTz() . Tip 13. Eloquent has() deeper You can use Eloquent has() function to query relationships even two layers deep! // Author -> hasMany(Book::class); // Book -> hasMany(Rating::class); $authors = Author::has(' books.ratings ')->get(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 14. Database migrations column types There are interesting column types for migrations, here are a few examples. $table->geometry('positions'); $table->ipAddress('visitor'); $table->macAddress('device'); $table->point('position'); $table->uuid('id'); See all column types: https://laravel.com/docs/master/migrations#creating-columns Tip 15. Artisan command help To check the options of artisan command, Run artisan commands with example, flag. For and see how many options you have: php artisan make:model --help --help Options: -a, --all Generate a migration, factory, and resource controller for the model -c, --controller Create a new controller for the model -f, --factory Create a new factory for the model --force Create the class even if the model already exists. -m, --migration Create a new migration file for the model. -p, --pivot Indicates if the generated model should be a custom intermediate table model. -r, --resource Indicates if the generated controller should be a resource controller. -h, --help Display this help message -q, --quiet Do not output any message -V, --version Display this application version --ansi Force ANSI output --no-ansi Disable ANSI output -n, --no-interaction Do not ask any interactive question --env[=ENV] The environment the command should run under -v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ Tip 16. Default Timestamp While creating migrations, you can use ->useCurrent() , it will set CURRENT_TIMESTAMP as default value. ->timestamp() column type with option $table->timestamp('created_at')->useCurrent(); $table->timestamp('updated_at')->useCurrent(); Tip 17. Set logged in user with Observers Use make:observer current logged in user. and fill in creating() method to automatically set up user_id field for class PostObserver { /** * Handle to the post "creating" event. * * @param \App\Post $post * @return void */ public function creating(Post $post) { $post->user_id = auth()->id(); } } Tip 18. Soft-deletes: multiple restore When using soft-deletes, you can restore multiple rows in one sentence. Post::withTrashed()->where('author_id', 1)->restore(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 19. Has Many. How many exactly? In Eloquent records. hasMany() relationships, you can filter out records that have X amount of children // Author -> hasMany(Book::class) $authors = Author::has('books', '>', 5)->get(); Tip 20. Image validation While validating uploaded images, you can specify the dimensions you require. 'photo' => 'dimensions:max_width=4096,max_height=4096' Tip 21. Wildcard subdomains You can create route group by dynamic subdomain name, and pass its value to every route. {username} Route::domain(' Route::get('user/{id}', function ( // }); }); .workspace.com')->group(function () { $username , $id) { Tip 22. Exact Laravel version Find out exactly what Laravel version you have in your app, by running command php artisan --version www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ Tip 23. Testing email into laravel.log If you want to test email contents in your app but unable or unwilling to set up something like Mailgun, use .env storage/logs/laravel.log and all the email will be saved into file, instead of actually being sent. MAIL_DRIVER=log parameter Tip 24. Error code Blade pages If you want to create a specific error page for some HTTP code, like 500 - just create a blade file with this code as filename, in 403.blade.php , or etc, and it will automatically be loaded in case of that error code. resources/views/errors/500.blade.php Tip 25. Factory callbacks While using factories for seeding data, you can provide Factory Callback functions to perform some action after record is inserted. $factory->afterCreating(App\User::class, function ($user, $faker) { $user->accounts()->save(factory(App\Account::class)->make()); }); Tip 26. Artisan command parameters When creating Artisan command, you can ask the input in variety of ways: $this->choice() $this->anticipate() . , $this->confirm() , // Yes or no? if ($this->confirm('Do you wish to continue?')) { // } // Open question with auto-complete options $name = $this->anticipate('What is your name?', ['Taylor', 'Dayle']); // One of the listed options with default index $name = $this->choice('What is your name?', ['Taylor', 'Dayle'], $defaultIndex); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 27. Preview Mailables If you use Mailables to send email, you can preview the result without sending, directly in your browser. Just return a Mailable as route result: Route::get('/mailable', function () { $invoice = App\Invoice::find(1); return new App\Mail\InvoicePaid($invoice); }); Tip 28. Route::view() - Don't create Controllers If you want route to just show a certain view, don't create a Controller method, just use Route::view() function. // Instead of this Route::get('about', 'TextsController@about'); // And this class TextsController extends Controller { public function about() { return view('texts.about'); } } // Do this Route::view('about', 'texts.about'); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ Tip 29. Blade @auth Instead of if-statement to check logged in user, use ​@auth directive. Typical way: @if(auth()->user()) // The user is authenticated. @endif Shorter: @auth // The user is authenticated. @endauth The opposite is ​@guest directive. @guest // The user is not authenticated. @endguest Tip 30. Model all: columns When calling Eloquent's Model::all() , you can specify which columns to return. $users = User::all(['id', 'name', 'email']); Tip 31. Localhost in .env Don't forget to change in your it will be the basis for any links in your email notifications and elsewhere. http://localhost APP_URL file from .env to real URL, cause APP_NAME=Laravel APP_ENV=local APP_KEY=base64:9PHz3TL5C4YrdV6Gg/Xkkmx9btaE93j7rQTUZWm2MqU= APP_DEBUG=true APP_URL= http://localhost www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 32: What's behind the routes? Want to know what routes are actually behind From Laravel 7, it’s in a separate package, so check the file . /vendor/laravel/ui/src/AuthRouteMethods.php Auth::routes() ? public function auth() { return function ($options = []) { // Authentication Routes... $this->get('login', 'Auth\LoginController@showLoginForm')->name('login'); $this->post('login', 'Auth\LoginController@login'); $this->post('logout', 'Auth\LoginController@logout')->name('logout'); // Registration Routes... if ($options['register'] ?? true) { $this->get('register', 'Auth\RegisterController@showRegistrationForm')->name('register'); $this->post('register', 'Auth\RegisterController@register'); } // Password Reset Routes... if ($options['reset'] ?? true) { $this->resetPassword(); } // Password Confirmation Routes... if ($options['confirm'] ?? class_exists($this->prependGroupNamespace('Auth\ConfirmPasswordController'))) { $this->confirmPassword(); } // Email Verification Routes... if ($options['verify'] ?? false) { $this->emailVerification(); } }; } Before Laravel 7, check the file /vendor/laravel/framework/src/illuminate/Routing/Router.php . public function auth(array $options = []) { // Authentication Routes... $this->get('login', 'Auth\LoginController@showLoginForm')->name('login'); $this->post('login', 'Auth\LoginController@login'); $this->post('logout', 'Auth\LoginController@logout')->name('logout'); // Registration Routes... www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ if ($options['register'] ?? true) { $this->get('register', 'Auth\RegisterController@showRegistrationForm')->name('register'); $this->post('register', 'Auth\RegisterController@register'); } // Password Reset Routes... $this->get('password/reset', 'Auth\ForgotPasswordController@showLinkRequestForm')->name('password.request'); $this->post('password/email', 'Auth\ForgotPasswordController@sendResetLinkEmail')->name('password.email'); $this->get('password/reset/{token}', 'Auth\ResetPasswordController@showResetForm')->name('password.reset'); $this->post('password/reset', 'Auth\ResetPasswordController@reset')->name('password.update'); // Email Verification Routes... if ($options['verify'] ?? false) { $this->emailVerification(); } } public function emailVerification() { $this->get('email/verify', 'Auth\VerificationController@show')->name('verification.notice'); $this->get('email/verify/{id}', 'Auth\VerificationController@verify')->name('verification.verify'); $this->get('email/resend', 'Auth\VerificationController@resend')->name('verification.resend'); } www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ Tip 33. To Fail or not to Fail In addition to findOrFail() 404 page if no records for query are found. , there's also Eloquent method firstOrFail() which will return $user = User::where('email', 'povilas@laraveldaily.com')->firstOrFail(); Tip 34. Column name change in Eloquent Query Builder, you can specify "as" to return any column with a different name, just like in plain SQL query. $users = DB::table('users') ->select('name', 'email as user_email') ->get(); Tip 35. Logging with parameters You can write context about what happened. Log::info() , or shorter info() message with additional parameters, for more Log::info('User failed to login.', ['id' => $user->id]); Tip 36. Default Model You can assign a default model in like {{ $post->user->name }} belongsTo if $post->user doesn't exist. relationship, to avoid fatal errors when calling it /** * Get the author of the post. */ public function user() { return $this->belongsTo('App\User')->withDefault(); } www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 37. Use hasMany to create Many If you have from your "parent" object, all in one sentence. relationship, you can use hasMany() saveMany() to save multiple "child" entries $post = Post::find(1); $post->comments()->saveMany([ new Comment(['message' => 'First comment']), new Comment(['message' => 'Second comment']), ]); Tip 38. More convenient DD Instead of doing Eloquent sentence, or any Collection. dd($result); you can put ->dd() as a method directly at the end of your // Instead of $users = User::where('name', 'Taylor')->get(); dd($users); // Do this $users = User::where('name', 'Taylor')->get()->dd(); Tip 39. Map query results After Eloquent query you can modify rows by using map() function in Collections. $users = User::where('role_id', 1)->get()->map(function (User $user) { $user->some_column = some_function($user); return $user; }); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 40. Custom validation error messages You can customize validation error messages per specific language file structure. and resources/lang/xx/validation.php field rule , language with appropriate array - just create a 'custom' => [ 'email' => [ 'required' => 'We need to know your e-mail address!', ], ], Tip 41. When (NOT) to run “composer update” Not so much about Laravel, but... Never run "break" repository. Always run composer.lock to the repository, and run composer update composer update on production, it's slow and will locally on your computer, commit new on server. composer install Tip 42. Two-level $loop variable in Blade In Blade's foreach you can use $loop variable even in two-level loop to reach parent variable. @foreach ($users as $user) @foreach ($user->posts as $post) @if ($loop->parent->first) This is first iteration of the parent loop. @endif @endforeach @endforeach www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 43. Route Model Binding: You can define a key You can do Route model binding like (App\User $user) { … } field, put this in the model: Route::get('api/users/{user}', function - but not only by ID field. If you want {user} to be a username public function getRouteKeyName() { return 'username'; } Tip 44. Redirect to Specific Controller Method You can method, and even pass the parameters. Use this: redirect() not only to URL or specific route, but to a specific Controller's specific return redirect()->action('SomeController@method', ['param' => $value]); Tip 45. Did you know about Auth::once()? You can login with user only for ONE REQUEST, using method cookies will be utilized, which means this method may be helpful when building a stateless API. Auth::once() . No sessions or if (Auth::once($credentials)) { // } Tip 46. Eager Loading with Exact Columns You can do Laravel Eager Loading and specify the exact columns you want to get from the relationship. $users = App\Book::with('author:id,name')->get(); You can do that even in deeper, second level relationships: $users = App\Book::with('author.country:id,name')->get(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tip 47. Validate dates with "now" or "yesterday" words You can validate dates by rules before/after and passing various strings as a parameter, like: "tomorrow", "now", "yesterday". Example: strtotime() under the hood. 'start_date' => 'after:now' . It's using $rules = [ 'start_date' => 'after:tomorrow', 'end_date' => 'after:start_date' ]; Tip 48. Touch parent updated_at easily If you are updating a record and want to update the (like, you add new post comment and want = ['post']; property on child model. updated_at posts.updated_at column of parent relationship to renew), just use $touches class Comment extends Model { /** * All of the relationships to be touched. * * @var array */ protected $touches = ['post']; } Tip 49. Quickly Navigate from Routes file to Controller Instead of routing like this: Route::get('page', 'PageController@action'); You can specify the Controller as a class: Route::get('page', [\App\Http\Controllers\PageController::class, 'action']); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​ ​ ​ ​ ​ ​ ​ ​ Then you will be able to click on “PageController” in PhpStorm, and navigate directly to Controller, instead of searching for it manually. Tip 50. Always Check if Relationship Exists Never ​ever​ do ​$model->relationship->field object still exists.   without checking if relationship  It may be deleted for whatever reason, outside your code, by someone else's queued  job etc. Do ​if-else Blade, or ​{{ optional($model->relationship)->field }}  , or ​{{ $model->relationship->field ?? '' }} in  Tip 51. Don’t Filter by NULL in Collections You can filter by NULL in Eloquent, but if you're filtering the ​collection​ further - filter  by empty string, there's no "null" in that field anymore.   // This works $messages = Message::where( ' read_at is null ' )->get(); // Won’t work - will return 0 messages $messages = Message::all(); $unread_messages = $messages->where( ' read_at is null ' )->count(); // Will work $unread_messages = $messages->where( ' read_at ' , '' )->count();  Tip 52. Default Email Subject in Laravel Notifications If you send Laravel Notification and don't specify subject in ​toMail()​, default subject  is your notification class name, CamelCased into Spaces.  So, if you have:  class UserRegistrationEmail extends Notification { // ... Then you will receive an email with subject “User Registration Email”.  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​ ​   ​ ​         ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​             Tip 53. Composer: Check for Newer Versions If you want to find out which of your ​composer.json​ packages have released newer  versions, just run "​composer outdated​". You will get a full list with all information, like  this below.  phpdocumentor/type-resolver 0.4.0 0.7.1  phpunit/php-code-coverage 6.1.4 7.0.3 Library that provides collection, processing, and rende...  phpunit/phpunit 7.5.9 8.1.3 The PHP Unit Testing framework.  ralouphie/getallheaders 2.0.5 3.0.3 A polyfill for getallheaders.  sebastian/global-state 2.0.0 3.0.0 Snapshotting of global state  Tip 54. Route Fallback - When no Other Route is Matched If you want to specify additional logic for not-found routes, instead of just throwing  default 404 page, you may create a special Route for that, at the very end of your  Routes file.  Route::group(['middleware' => ['auth'], 'prefix' => 'admin', 'as' => 'admin.'], function () { Route::get('/home', 'HomeController@index'); Route::resource('tasks', 'Admin\TasksController'); }); // Some more routes.... Route::fallback(function() { return 'Hm, why did you land here somehow?'; }); Tip 55. Create Your Own Blade Directive It’s very easy - just add your own method in ​app/Providers/AppServiceProvider.php​:  For example, if you want to have this for replace
tags with new lines:  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                         Add this directive to AppServiceProvider’s ​boot()​ method:  public function boot() { Blade::directive('br2nl', function ($string) { return "/i', \"\n\", $string); ?>"; }); } Tip 56. Use withCount() to Calculate Child Relationships Records If you have ​hasMany()​ relationship, and you want to calculate “children” entries, don’t  write a special query. For example, if you have posts and comments on your User  model, write this ​withCount()​:  public function index() { $users = User::withCount(['posts', 'comments'])->get(); return view('users', compact('users')); } And then, in your Blade file, you will access those number with ​[​relationship​]_count  properties:  @foreach ($users as $user) {{ $user->name }} {{ $user->posts_count }} {{ $user->comments_count }} @endforeach Tip 57. Use groupBy on Collections with Custom Callback Function If you want to group result by some condition whith isn’t a direct column in your  database, you can do that by providing a closure function.   www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                           For example, if you want to group users by day of registration, here’s the code:  $users = User::all()->groupBy(function($item) { return $item->created_at->format('Y-m-d'); }); Notice​: it is done on a ​Collection​ class, so performed ​AFTER​ the results are fetched  from the database.  Tip 58. Blade Directives: IncludeIf, IncludeWhen, IncludeFirst If you are not sure whether your Blade partial file actually would exist, you may use  these condition commands:  This will load header only if Blade file exists  @includeIf('partials.header') This will load header only for user with role_id 1  @includeWhen(auth()->user()->role_id == 1, 'partials.header') This will try to load adminlte.header, if missing - will load default.header  @includeFirst('adminlte.header', 'default.header')  Tip 59. Change Default Timestamp Fields What if you’re working with non-Laravel database and your timestamp columns are  named differently? Maybe, you have create_time and update_time. Luckily, you can  specify them in the model, too:  class Role extends Model { const CREATED_AT = 'create_time'; const UPDATED_AT = 'update_time'; www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                               Tip 60. Quick Order by created_at Instead of:  User::orderBy('created_at', 'desc')->get(); You can do it quicker:  User::latest()->get(); By default, ​latest() will order by ​created_at .  There is an opposite method ​oldest() User::oldest()->get(); which would order by created_at ascending.  Also, you can specify another column to order by. For example, if you want to use  updated_at $lastUpdatedUser = User::newest('updated_at')->first();  , you can do this:  Tip 61. Generate Images with Seeds/Factories Did you know that Faker can generate not only text values but also IMAGES? See  avatar field here - it will generate 50x50 image:  $factory->define(User::class, function (Faker $faker) { return [ 'name' => $faker->name, 'email' => $faker->unique()->safeEmail, 'email_verified_at' => now(), 'password' => bcrypt('password'), 'remember_token' => Str::random(10), 'avatar' => $faker->image(storage_path('images'), 50, 50) ]; }); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​       ​ ​   ​   ​       ​         Tip 62. Eloquent: Update Parent in One Line If you have a ​belongsTo() data in the same sentence:  relationship, you can update the Eloquent relationship  // if Project -> belongsTo(User::class) $project->user->update(['email' => 'some@gmail.com']);   Tip 63. Eloquent: Laravel 7+ Foreign Keys From Laravel 7, in migrations you don't need to write two lines for relationship field -  one for the field and one for foreign key. Use method ​foreignId() .  // Before Laravel 7 Schema::table('posts', function (Blueprint $table)) { $table->unsignedBigInteger('user_id'); $table->foreign('user_id')->references('id')->on('users'); } // From Laravel 7 Schema::table('posts', function (Blueprint $table)) { $table->foreignId('user_id')->constrained(); } // Or, if your field is different from the table reference Schema::table('posts', function (Blueprint $table)) { $table->foreignId('created_by_id')->references('id')->on('users'); } Tip 64. Multiple Collection Methods in a Row If you query all results with ->all() or ->get(), you may then perform various Collection  operations on the same result, it won’t query database every time.  $users = User::all(); echo 'Max ID: ' . $users->max('id'); echo 'Average age: ' . $users->avg('age'); echo 'Total budget: ' . $users->sum('budget'); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​       ​         Tip 65. More Events on User Registration Want to perform some actions after new user registration? Head to  app/Providers/EventServiceProvider.php and then in those classes implement ​handle() and add more Listeners classes,  method with ​$event->user object  class EventServiceProvider extends ServiceProvider { protected $listen = [ Registered::class => [ SendEmailVerificationNotification::class, // You can add any Listener class here // With handle() method inside of that class ], ]; Tip 66. Extra Filter Query on Relationships If you want to load relationship data, you can specify some limitations or ordering in  a closure function. For example, if you want to get Countries with only three of their  biggest cities, here's the code.  $countries = Country::with(['cities' => function($query) { $query->orderBy('population', 'desc'); $query->take(3); }])->get(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​ ​       Tip 67. Send Notifications to Anyone You can send Laravel Notifications not only to a certain user with  $user->notify() so-called "on-demand" notifications:  , but also to anyone you want, via ​Notification::route() , with  Notification::route('mail', 'taylor@example.com') ->route('nexmo', '5555555555') ->route('slack', 'https://hooks.slack.com/services/...') ->notify(new InvoicePaid($invoice)); Tip 68. Sub-selects in Laravel Way From Laravel 6, you can use ​addSelect() calculation to that added column.  in Eloquent statement, and do some  return Destination::addSelect(['last_flight' => Flight::select('name') ->whereColumn('destination_id', 'destinations.id') ->orderBy('arrived_at', 'desc') ->limit(1) ])->get(); Tip 69. API Resources: With or Without “data”? If you use Eloquent API Resources to return data, they will be automatically wrapped  in 'data'. If you want to remove it, add ​JsonResource::withoutWrapping(); app/Providers/AppServiceProvider.php in  .  class AppServiceProvider extends ServiceProvider { public function boot() { JsonResource::withoutWrapping(); } }  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​         ​       ​ ​         Tip 70. API Return “Everything went ok” If you have API endpoint which performs some operations but has no response, so  you wanna return just "everything went ok", you may return 204 status code ​"No  content"​: ​https://httpstatuses.com/204    In Laravel, it's easy: ​return response()->noContent(); public function reorder(Request $request) { foreach ($request->input('rows', []) as $row) { Country::find($row['id'])->update([ 'position' => $row['position']; ]); } return response()->noContent(); }  Tip 71. Automatic Column Value When Creating Records If you want to generate some DB column value when creating record, add it to  model's ​boot() For example, if you have a field "position" and want to assign the next available  position to the new record (like ​Country::max('position') + 1 method.   ), do this.  class Country extends Model { // ... protected static function boot() { parent::boot(); // every new record will get next available position number Country::creating(function($model) { $model->position = Country::max('position') + 1; }); } } www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​         ​ ​         Tip 72. DB Raw Query Calculations Run Faster Use SQL raw queries like ​whereRaw() calculations directly in query, and not in Laravel, usually the result will be faster. Like,  if you want to get users that were active 30+ days after their registration, here's the  code.  method, to make some DB-specific  User::where('active', 1) ->whereRaw('TIMESTAMPDIFF(DAY, created_at, updated_at) > ?', 30) ->get(); Tip 73. More than One Scope You can combine and chain Query Scopes in Eloquent, using more than one scope in  a query.  // app/User.php model public function scopeActive($query) { return $query->where('active', 1); } public function scopeRegisteredWithinDays($query, $days) { return $query->where('created_at', '>=', now()->subDays($days)); } // Some Controller $users = User::registeredWithinDays(30)->active()->get(); Tip 74. Hide Some Columns When doing Eloquent query, if you want to hide specific field from being returned,  one of the quickest ways is to add ​->makeHidden() on Collection result.  $users = User::all()->makeHidden(['email_verified_at', 'deleted_at']);  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​                 ​           Tip 75. Combine Two “whereHas” In Eloquent, you can combine ​whereHas() and ​orDoesntHave() in one sentence.  User::whereHas('roles', function($query) { $query->where('id', 1); }) ->orDoesntHave('roles') ->get();  Tip 76. Auto-Capitalize Translations In translation files (​resources/lang :variable value you pass - will be also capitalized automatically.  , but also capitalized as ​:VARIABLE ), you can specify variables not only as  or ​:Variable - and then whatever  // resources/lang/en/messages.php 'welcome' => 'Welcome, :Name' // Result: "Welcome, Taylor" echo __('messages.welcome', ['name' => 'taylor']); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​         ​ ​ ​ ​       Tip 77. Validation Rule with Some Conditions If your validation rules depend on some condition, you can modify the rules by  adding ​withValidator() to your ​FormRequest logic there. Like, if you want to add validation rule only for some user role.  class, and specify your custom  use Illuminate\Validation\Validator; class StoreBlogCategoryRequest extends FormRequest { // ... public function withValidator(Validator $validator) { if (auth()->user()->is_admin) { $validator->addRules([ 'some_secret_password' => 'required' ]); } } }  Tip 78. Check if Relationship Method Exists If your Eloquent relationship names are dynamic and you need to check if  relationship with such name exists on the object, use PHP function  method_exists($object, $methodName) $user = User::first(); if (method_exists($user, 'roles')) { // Do something with $user->roles()->... }  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​             Tip 79. Exact DB Error If you want to catch Eloquent Query exceptions, use specific ​QueryException  instead default Exception class, and you will be able to get the exact SQL code of the  error.  try { // Some Eloquent/SQL statement } catch (\Illuminate\Database\QueryException $e) { if ($e->getCode() === '23000') { // integrity constraint violation return back()->withError('Invalid data'); } } Tip 80. Route Parameters Validation with RegExp We can validate parameters directly in the route, with “where” parameter. A pretty  typical case is to prefix your routes by language locale, like ​fr/blog​ and  en/article/333​. How do we ensure that those two first letters are not used for some  other than language?  // routes/web.php Route::group([ 'prefix' => '{locale}', 'where' => ['locale' => '[a-zA-Z]{2}'] ], function () { Route::get('/', 'HomeController@index'); Route::get('article/{id}', 'ArticleController@show'); });  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                 Tip 81. Rate Limiting: Global and for Guests/Users You can limit some URL to be called a maximum of 60 times per minute, with  throttle:60,1 .  Route::middleware('auth:api', 'throttle:60,1')->group(function () { Route::get('/user', function () { // }); }); But also, you can do it separately for public and for logged-in users.  // maximum of 10 requests for guests, 60 for authenticated users Route::middleware('throttle:10|60,1')->group(function () { // }); Also, you can have a DB field users.rate_limit and limit the amount for specific user:  Route::middleware('auth:api', 'throttle:rate_limit,1')->group(function () { Route::get('/user', function () { // }); }); Tip 82. Add Parameters to Routes If you pass additional parameters to the route, in the array, those key / value pairs  will automatically be added to the generated URL's query string.  Route::get('user/{id}/profile', function ($id) { // })->name('profile'); $url = route('profile', ['id' => 1, 'photos' => 'yes']); // Result: /user/1/profile?photos=yes  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​                         Tip 83. Check Multiple Permissions at Once In addition to ​@can at once with ​@canany directive?  Blade directive, did you know you can check multiple permissions  @canany(['update', 'view', 'delete'], $post) // The current user can update, view, or delete the post @elsecanany(['create'], \App\Post::class) // The current user can create a post @endcanany Tip 84. Check Auth Quicker If, in Blade, you need to check if user is logged in, don't do ​@if (auth()->check())  - there is a shorter way: directives ​@auth - @endauth and ​@guest - @endguest @auth // The user is authenticated... @endauth @guest // The user is not authenticated... @endguest Tip 85. No Need to Convert Carbon If you're performing ​whereDate() now() and it will automatically be transformed to date. No need to do  and check today's records, you can use Carbon's  ->toDateString() .  // Instead of $todayUsers = User::whereDate('created_at', now()->toDateString())->get(); // No need to convert, just use now() $todayUsers = User::whereDate('created_at', now())->get(); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​         ​         ​ ​ ​           Tip 86. Soft-Deletes with Query Builder Don't forget that soft-deletes will exclude entries when you use Eloquent, but won't  work if you use Query Builder.  // Will exclude soft-deleted entries $users = User::all(); // Will NOT exclude soft-deleted entries $users = DB::table('users')->get();  Tip 87. Grouping by First Letter You can group Eloquent results by any custom condition, here's how to group by first  letter of user's name.  $users = User::all()->groupBy(function($item) { return $item->name[0]; })  Tip 88. Load Relationships Always, but Dynamically You can not only specify what relationships to ALWAYS load with the model, but you  can do it dynamically, in the constructor method:  class ProductTag extends Model { protected $with = ['product']; public function __construct() { parent::__construct(); $this->with = ['product']; if (auth()->check()) { $this->with[] = 'user'; } } }  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                         Tip 89. Instead of belongsTo, use hasMany For ​belongsTo record, use ​hasMany relationship, instead of passing parent's ID when creating child  relationship to make a shorter sentence.  // if Post -> belongsTo(User), and User -> hasMany(Post)... // Then instead of passing user_id... Post::create([ 'user_id' => auth()->id(), 'title' => request()->input('title'), 'post_text' => request()->input('post_text'), ]); // Do this auth()->user()->posts()->create([ 'title' => request()->input('title'), 'post_text' => request()->input('post_text'), ]); Tip 90. Change Default Validation Messages If you want to change default validation error message for specific field and specific  validation rule, just add a ​messages() method into your ​FormRequest class.  class StoreUserRequest extends FormRequest { public function rules() { return ['name' => 'required’]; } public function messages() { return [ 'name.required' => 'User name should be real name', ]; } }  www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​         ​ ​         Tip 91. Validate Images Dimensions In validation, you can check uploaded images dimensions, specifying rules for  min/max witdh/height, and even ratio.  'avatar' => 'dimensions:min_width=100,min_height=200,dimensions:3/2'  Tip 92. Carbon with Only Hours/Minutes if you want to have a current date without seconds and/or minutes, use Carbon's  methods like setSeconds(0) or setMinutes(0).  // 2020-04-20 08:12:34 echo now(); // 2020-04-20 08:12:00 echo now()->setSeconds(0); // 2020-04-20 08:00:00 echo now()->setSeconds(0)->setMinutes(0); // Another way - even shorter echo now()->startOfHour(); Tip 93. Good Old SQL Query If you need to execute a simple SQL query, without getting any results - like changing  something in DB schema, you can just do ​DB::statement() .  DB::statement('DROP TABLE users'); DB::statement('ALTER TABLE projects AUTO_INCREMENT=123'); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                   ​   Tip 94. Prepare for Validation If you want to modify some field before default Laravel validation, or, in other words,  "prepare" that field, guess what - there's a method ​prepareForValidation() FormRequest class:  in  protected function prepareForValidation() { $this->merge([ 'slug' => Illuminate\Support\Str::slug($this->slug), ]); } Tip 95. Rename Pivot Table If you want to rename "pivot" word and call your relationship something else, you just  use ​as('name') in your relationship:  public function podcasts() { return $this->belongsToMany('App\Podcast') ->as('subscription') ->withTimestamps(); } // Then somewhere in Controller... $podcasts = $user->podcasts(); foreach ($podcasts as $podcast) { // instead of $podcast->pivot->created_at ... echo $podcast->subscription->created_at; } www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​ ​     ​       Tip 96. Similar Relationship but With Condition If you notice that you use same relationship often with additional "where" condition,  you can create a separate relationship method.  // app/Post.php model public function comments() { return $this->hasMany(Comment::class); } public function approved_comments() { return $this->hasMany(Comment::class)->where('approved', 1); } Tip 97. Never Update the Column If you have DB column which you want to be set only once and never updated again,  you can set that restriction on Eloquent Model, with a mutator:  class User extends Model { public function setEmailAttribute($value) { if ($this->email) { return; } $this->attributes['email'] = $value; } } www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                 Tip 98. Maintenance Mode If you want to enable maintenance mode on your page, execute the down Artisan  command:  php artisan down Then people would see default 503 status page.  You may also provide flags:  - message that would be shown   - retry page reload every X seconds  - still allow the access to some IP address   php artisan down --message="Upgrading Database" --retry=60 --allow=127.0.0.1 When you've done the maintenance work, just run  php artisan up Tip 99. Find Many Eloquent method find() may accept multiple parameters, and then it returns a  Collection of all records found, not just one Model.  // Will return Eloquent Model $user = User::find(1); // Will return Eloquent Collection $users = User::find([1,2,3]); www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​                           Tip 100. Stop on First Validation Error By default, Laravel validation errors will be returned in a list, checking all validation  rules. But if you want the process to stop after the first error, use validation rule  called ​bail :  $request->validate([ 'title' => 'bail|required|unique:posts|max:255', 'body' => 'required', ]); To be continued… Follow @DailyLaravel on Twitter for updates Or subscribe to our weekly newsletter: http://bit.ly/laravel-newsletter www.quickadminpanel.com Support our work by checking our Laravel adminpanel generator: ​   ​   ​ ​