Create referrals table to record recommendation relationships, including referrals, referrals, recommendation codes and usage time; 2. Define belongsToMany and hasMany relationships in the User model to manage recommendation data; 3. Generate a unique recommendation code when registering (can be implemented through model events); 4. Capture the recommendation code by querying parameters during registration, establish a recommendation relationship after verification and prevent self-recommendation; 5. Trigger the reward mechanism when recommended users complete the specified behavior (subscription order); 6. Generate shareable recommendation links, and use Laravel signature URLs to enhance security; 7. Display recommendation statistics on the dashboard, such as the total number of recommendations and converted numbers; it is necessary to ensure database constraints, sessions or cookies are persisted,

MongoDBintroducedmulti-documenttransactionsinversion4.0,enablingatomicoperationsacrosscollectionsforstrongconsistency.Transactionsallowmultipleread/writeoperationstobegroupedasasingleunit,eitherallsucceedingorfailingtogether.Theyaresupportedinreplica

Create a new Laravel project and start the service; 2. Generate the model, migration and controller and run the migration; 3. Define the RESTful route in routes/api.php; 4. Implement the addition, deletion, modification and query method in PostController and return the JSON response; 5. Use Postman or curl to test the API function; 6. Optionally add API authentication through Sanctum; finally obtain a clear structure, complete and extensible LaravelRESTAPI, suitable for practical applications.

SetupLaravelasanAPIbackendbyinstallingLaravel,configuringthedatabase,creatingAPIroutes,andreturningJSONfromcontrollers,optionallyusingLaravelSanctumforauthentication.2.ChoosebetweenastandaloneReactSPAservedseparatelyorusingInertia.jsfortighterLaravel

The Repository pattern is a design pattern used to decouple business logic from data access logic. 1. It defines data access methods through interfaces (Contract); 2. The specific operations are implemented by the Repository class; 3. The controller uses the interface through dependency injection, and does not directly contact the data source; 4. Advantages include neat code, strong testability, easy maintenance and team collaboration; 5. Applicable to medium and large projects, small projects can use the model directly.

Use FormRequests to extract complex form verification logic from the controller, improving code maintainability and reusability. 1. Creation method: Generate the request class through the Artisan command make:request; 2. Definition rules: Set field verification logic in the rules() method; 3. Controller use: directly receive requests with this class as a parameter, and Laravel automatically verify; 4. Authorization judgment: Control user permissions through the authorize() method; 5. Dynamic adjustment rules: dynamically return different verification rules according to the request content.

Useembeddingwhentherelationshipisone-to-few,dataisaccessedtogether,andfastreadsareneeded;2.Usereferencingwhendealingwithone-to-manyormany-to-manyrelationships,largeorindependentlyquerieddata;3.Considerread/writefrequency,datagrowth,independentqueries

AccessorsandmutatorsinLaravel'sEloquentORMallowyoutoformatormanipulatemodelattributeswhenretrievingorsettingvalues.1.Useaccessorstocustomizeattributeretrieval,suchascapitalizingfirst_nameviagetFirstNameAttribute($value)returningucfirst($value).2.Usem