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Database Indexes: Improve Queries Without Indexing Everything
Indexes help a database find rows efficiently, but every index adds storage and makes writes more expensive. The goal is to index real query patterns rather than add an index to every column.Start with the slow query and inspect its filter conditions, joins, sort order, and execution plan. An index may help columns used in selective WHERE clauses or join keys. Composite index order matters: an ind...
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1 week agoLaravel Middleware: Keep Authorization Rules Out of Controllers
Middleware is useful for request-wide concerns such as authentication, throttling, and access checks that apply consistently across routes. It should complement, not replace, resource-level authorization.A middleware can reject a request before it reaches a controller when the user is unauthenticated or lacks a broad role. For ownership and resource-specific rules, Laravel policies often make the...
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1 week agoDesigning Eloquent Relationships Without N+1 Queries
Eloquent relationships make application code expressive, but a page can become slow when each row triggers another database query. This is the classic N+1 query problem.Suppose a page lists twenty topics and displays each author's name. Loading topics and then reading topic->user inside a loop may issue one query for the topics plus one query per author. Use eager loading with Topic::with('user')-...
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