majiayu000 Laravel Eloquent
Priority: P0 (CRITICAL)
Structure
app/
└── Models/
├── {Model}.php
└── Scopes/ # Advanced global scopes
Implementation Guidelines
- N+1 Prevention: Always use
with()or$withfor relationships. - Eager Loading: Set strict loading via
Eloquent::preventLazyLoading(). - Reusable Scopes: Define
scopeNamemethods for common query filters. - Mass Assignment: Define
$fillableand use$request->validated(). - Performance: Use
chunk(),lazy(), orcursor()for large tasks. - Casting: Use
$castsfor dates, JSON, and custom types.
Anti-Patterns
- N+1 Queries: No lazy loading: Never query relationships in loops.
- Fat Models: No business logic: Models are for data access only.
- Magic Queries: No raw SQL: Use Query Builder or Eloquent.
- Select *: No excessive data: Select only required columns.
References
- Eloquent Performance Guide