Magento Blog: Guides and Practical Know-how | Page 310 | mironsoft
Magento Blog
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Mar 19, 2025
Returning a limited number of rows from a query sounds like a trivial task, yet MySQL, PostgreSQL, SQL Server, and Oracle write this limit with four completely different syntax forms. Anyone who wants to keep pagination code portable across these systems needs an overview of LIMIT, TOP, ROWNUM, and the common ANSI standard denominator OFFSET FETCH.
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Mar 19, 2025
A growing Redis Cluster sooner or later needs to move hash slots between nodes, take on new nodes, or remove old ones, all while the application keeps running uninterrupted. redis-cli --cluster reshard orchestrates this operation through the MIGRATING and IMPORTING state of individual slots, turning resharding into a controlled, live operation instead of a maintenance window.
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Mar 19, 2025
Symfony's RateLimiter component reliably protects endpoints from abuse, but only if the chosen storage backend actually matches the underlying infrastructure. In-memory storage is meant for tests and only counts requests within a single PHP process, which behind a load balancer with multiple server instances effectively means an attacker can multiply the limit by the number of instances. This article compares in-memory storage, the generic cache adapter, and Redis as shared state, walks through the concrete configuration of RateLimiterFactory, and explains the practical difference between sliding window and token bucket policies.
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Mar 19, 2025
Tests that depend on the current time, randomly generated UUIDs, or pseudo-random values are flaky: they sometimes fail and sometimes don't, and the cause is hard to reproduce. Clock interfaces, UUID factories, and controlled randomness solve this problem at its root, without complicating the production code.
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Mar 19, 2025
Decorators extend classes, methods, and properties with reusable behavior without touching the underlying code. Since TypeScript 5.0, the new TC39 Stage 3 standard is available with no compiler flag, while Angular and older NestJS versions still rely on experimentalDecorators and reflect-metadata. This article walks through both systems with real code examples for logging, validation, and dependency injection.
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Mar 19, 2025
A misconfigured Elasticsearch or OpenSearch installation noticeably slows down every category page and every faceted search in Magento. This article shows how index mapping, shard sizes, JVM heap, and query patterns determine actual response time, how to find bottlenecks with the Explain API and cluster health checks, and how to avoid expensive wildcard and fuzzy queries in layered navigation.
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Mar 18, 2025
A breadcrumb bar built from nested div and span elements with separators looks correct to sighted users, but delivers no information whatsoever to a screen reader that it's a navigation aid with a clear position in the page hierarchy. This article covers how nav with aria-label, aria-current, a semantically correct list structure, and accessible pagination controls create real, usable navigation for screen reader users, with complete practical examples from Hyva.
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Mar 18, 2025
EN 301 549 is the invisible foundation underneath most accessibility discussions in Europe: the BFSG, the European Accessibility Act, and public procurement rules all point back to this standard, yet few project teams have ever opened the actual document. Anyone who only knows WCAG only knows part of it.
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Mar 18, 2025
Custom share buttons hardcoded to a handful of social media platforms are outdated. The Web Share API opens the operating system's native share dialog, and the user decides which app to use: WhatsApp, Telegram, Email, Notes, or anything else. The result is better UX with less code and no dependency on third-party SDKs.
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Mar 18, 2025
Component Testing with Cypress closes the gap between isolated unit tests and slow end to end runs. Vue components are actually mounted in the browser, with a real DOM, real events, and controllable network calls, without booting up the entire application.