How to implement a referral system in Laravel
Create referrals table to store recommendation relationships, including referrals, referrals, unique recommendation codes and usage time; 2. Define the association relationship between referrals and referredBy in the User model, and add a unique referral_code field for the user; 3. Use the generatedReferralCode method to generate an 8-bit capital unique recommendation code and allocate it when the user registers; 4. When the user registers, obtain the recommendation code through the URL or form, and after verification, create a recommendation record and prevent self-recommendation; 5. Use the rewardReferrer method or event system to distribute rewards, such as points or discounts; 6. Generate a form like /register?ref on the front end
Aug 08, 2025 pm 02:32 PM
How to create custom validation rules in Laravel
Usephpartisanmake:ruletocreateareusableruleclasslikeUppercasewithpasses()andmessage()methods.2.Passparameterstorulesbydefiningthemintheconstructorforflexiblevalidationsuchascheckingvaluesinalist.3.Useclosuresdirectlyinvalidationarraysforsimple,one-of
Aug 08, 2025 pm 02:11 PM
How to write complex database queries with Query Builder in Yii
Yii's QueryBuilder supports efficient and secure construction of complex database queries by providing smooth interfaces. 1. Use leftJoin() and other methods to achieve multi-table association and avoid field ambiguity; 2. Nesting subqueries in WHERE or SELECT to handle dynamic filtering or aggregated data; 3. Dynamically add where, orderBy and other conditions according to runtime conditions; 4. Combine groupBy() and having() to filter the aggregate results; 5. Use union() to merge query results compatible with multiple structures; 6. Securely insert SQL expressions through yii\db\Expression; 7. Combine limit and offset to realize pagination and use c
Aug 08, 2025 pm 01:41 PM
How to manage background jobs with Laravel Horizon
LaravelHorizon is a powerful dashboard and configuration system for managing Redis queues in Laravel applications. 1. First, install and publish configuration files through Composer to ensure that QUEUE_CONNECTION=redis in .env is correctly configured; 2. Define the environment and worker processes in config/horizon.php, set parameters such as connection, queue, processes, tries and balance, and restart through phpartisanhorizon:terminate; 3. Use dispatch()->onQu
Aug 08, 2025 pm 01:40 PM
How to write unit tests in Laravel
UnittestsinLaravelfocusonisolatedcodepartswithoutI/O;2.Setupusingphpunit.xmland.env.testing;3.Createtestsviaphpartisanmake:test--unit;4.Keeptestsisolatedbymockingdependencieslikedatabasesorservices;5.Runtestswithphpartisantest--testsuite=Unit;6.Follo
Aug 08, 2025 pm 01:04 PM
What are route groups in Laravel?
Laravel's routing group is used to combine multiple routes and apply public properties such as middleware, prefixes, or namespaces to keep the route definition neat. 1. The most common use of routing groups is to apply the same middleware to a set of routes, such as authentication middleware auth; 2. You can use the prefix method to add a unified URI prefix to a set of routes, such as /admin or /api/v1; 3. The routes can be organized according to the controller namespace through the namespace method, which facilitates large applications to manage different modules; 4. The routing group supports nesting, and can combine and apply multiple attributes in a multi-layer structure to improve the maintainability of complex routing structures.
Aug 08, 2025 pm 12:14 PM
How to use eager loading in Laravel
EagerloadinginLaravelreducesdatabasequeriesbyloadingrelationshipsupfronttoavoidtheN 1problem.1.Usewith('relationship')whenquerying,e.g.,Book::with('author')->get()toloadallauthorsinonequery.2.LoadmultiplerelationshipswithBook::with(['author','publ
Aug 08, 2025 am 11:46 AM
How to build a single-page application (SPA) with Laravel
To build a single-page application (SPA) based on Laravel, you need to configure Laravel as an API backend and integrate the front-end framework. The specific steps are as follows: 1. Set Laravel as the API backend, use api.php to define the route and return a JSON response; 2. Select front-end frameworks such as Vue.js, build Vue applications in resources/js/ and configure VueRouter; 3. Create a single Blade view app.blade.php, and point all front-end routes to the view through wild routing /{any} in web.php; 4. Use LaravelSanctum to process SPA authentication, publish configuration, run migrations, and use the controller to
Aug 08, 2025 am 11:25 AM
How to create a custom middleware in Laravel
Create middleware using phpartisanmake:middlewareCheckAge; 2. Define logic in the handle method, such as checking whether the age parameter in the request is less than 18, if so, redirect to home, otherwise continue the request; 3. Register middleware in app/Http/Kernel.php, you can choose global registration ($middleware array) or route registration ($routeMiddleware array and name it like 'check.age'); 4. Apply middleware to a single route or routing group, such as ->middleware('check.age') or Route::middlew
Aug 08, 2025 am 10:47 AM
How to upload a file in Laravel
Create a form containing file input and set the enctype to multipart/form-data; 2. Define a POST route to the upload controller in web.php; 3. Verify the file in the controller and save it to the public disk using the store method; 4. Make sure that the config/filesystems.php is configured with the public disk and run phpartisanstorage:link to create a symbolic link; 5. Access the uploaded file through asset('storage/'.$path), and pay attention to verifying the file type, size and ensuring security. After the file is uploaded successfully, the prompt message can be returned. The entire process needs to ensure the text.
Aug 08, 2025 am 10:35 AM
How to work with Guzzle HTTP client in Laravel?
To use the GuzzleHTTP client to send HTTP requests in Laravel, you must first install Guzzle through composerrequireguzzlehttp/guzzle, and then create a GuzzleHttp\Client instance in the controller or service and call the corresponding method. 1. Install Guzzle: run the composerrequireguzzlehttp/guzzle command to add dependencies; 2. Use in the controller: instantiate the Client and send the request using get, post, etc., and use try-catch to handle exceptions at the same time; 3. Support multiple request types: use get() and post()
Aug 08, 2025 am 10:15 AM
How to implement a 'like' system for posts in Laravel?
Create Like model and migration and run migration; 2. Set up Eloquent relationships in User, Post, and Like models; 3. Create LikeController to process like logic; 4. Define routes for like and cancel likes in the route; 5. Add a form in the Blade template to display like buttons and likes; 6. Optionally use single-every-switch endpoints to simplify logic; 7. Optionally provide API support for SPA applications to return JSON data. Through these seven steps, you can implement a complete like system in Laravel, including functions to prevent repeated likes, user authentication and front-end interaction.
Aug 08, 2025 am 09:40 AM
How to use the repository pattern in a Laravel application?
Use the warehousing model to separate business logic from data access logic. The answer is to define interfaces and implementation classes and combine them with Laravel service containers; 1. Create PostRepositoryInterface interface to define all, find, create, update, delete methods; 2. Create EloquentPostRepository class to implement interfaces and encapsulate Eloquent model operations; 3. Bind the interface to specific implementations in AppServiceProvider; 4. Inject interfaces through type prompts in PostController and call warehousing methods; 5. Advantages include improving testability, flexibility, and control
Aug 08, 2025 am 09:33 AM
How to upload files in Yii
Create a model and define file verification rules, and use UploadedFile to handle uploads; 2. Get the uploaded file through getInstance in the controller and call the model's upload method; 3. Use ActiveForm in the view and set the enctype to multipart/form-data; 4. Ensure that the file type is verified, the size is limited, the unique file name is generated and stored in a secure path; 5. Use getInstances and traversal processing for multiple files. File uploads must always be combined with verification and security measures to prevent risks. Yii2 supports safe and efficient file upload through model and component support. After complete implementation, success prompts or errors should be returned to ensure the flow.
Aug 08, 2025 am 08:07 AM
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