Magento Blog: Guides and Practical Know-how | Page 305 | mironsoft
Magento Blog
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Mar 24, 2025
Anyone who writes business logic directly into block classes ends up with Magento templates that can neither be tested in isolation nor reused cleanly. The Hyvä ViewModel pattern strictly separates data preparation from presentation, makes every rule verifiable as a plain PHP class with PHPUnit, and keeps phtml templates limited to pure output.
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Mar 24, 2025
A correctly configured Varnish Full Page Cache serves Magento pages in a few milliseconds, yet a single misconfigured cookie rule can drop the hit ratio to zero. This article explains VCL fundamentals, Magento's default.vcl, ESI fragments for personalized blocks, and the most common cache-busting mistakes along with debugging techniques.
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Mar 24, 2025
JVM heap tuning in Elasticsearch is not a matter of "more heap is always better", it is a balance between the JVM heap for Java objects and the operating system file cache that Lucene uses for segment access. Setting the heap too large, or without regard for the 32 gigabyte compressed oops boundary, wastes performance and risks long garbage collection pauses right when load is highest.
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Mar 24, 2025
Local Git hooks live in .git/hooks and are never versioned with the repository, so every developer has to set them up individually and teams end up with no reliable way to enforce code quality before a commit. Husky distributes hooks automatically through npm, lint-staged limits checks to changed files, and commitlint enforces clean commit messages, all without manual setup.
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Mar 24, 2025
With a catalog of hundreds of thousands of products, a full reindex costs time many shops simply cannot afford. Anyone who consistently applies partial reindex strategies processes only the records that actually changed and keeps indexers within a manageable time frame even as the catalog grows large.
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Mar 24, 2025
Skeleton screens and spinners solve the same technical problem, bridging the gap between a user action and visible content, but they differ sharply in how they affect perceived wait time. This article compares both approaches, shows when each one is the better fit, and walks through implementing content-aware skeletons as React Suspense fallbacks.
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Mar 24, 2025
Applying a Magento update to production is not a single Composer command, it is a process with several critical steps, and skipping any one of them raises the risk of an outage. A structured update service differs from ongoing maintenance in that it focuses specifically on the update itself: resolving Composer constraints correctly, testing changes on a staging environment first, running automated tests before production deployment, and keeping a working rollback strategy ready just in case. This article shows how such an update process is actually built.
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Mar 24, 2025
An order confirmation or a registration email belongs to the most critical yet least frequently tested paths of an online store, because email delivery happens outside the direct reach of a browser test and lands asynchronously, with unknown delay, in a foreign system. A test SMTP server like Mailhog or Mailtrap solves exactly this problem by intercepting outgoing emails within the test environment, exposing them through its own API, and making an email's content, subject, and links just as precisely testable as a DOM element in the browser.
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Mar 24, 2025
A single common table expression already makes a query noticeably more readable than a deeply nested subquery, but the real payoff shows up once several CTEs build on each other in sequence, breaking a complex analysis into clearly named, traceable intermediate steps. That readability comes at a price though, since not every database treats a chain of CTEs the same way technically: some materialize each CTE as an independent intermediate result, others transparently fold them into the surrounding query. This article covers how to structure multi step CTE chains sensibly, how materialization behavior differs between PostgreSQL before and after version 12 as well as other databases, and at what point a CTE chain becomes a genuine performance problem in practice.
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Mar 23, 2025
conic-gradient() produces color transitions that rotate around a center point instead of running linearly or radially, making it a surprisingly precise tool for pie charts, loading animations and color wheels. Combined with custom properties updated by JavaScript, it becomes a dynamic visualization technique that needs no SVG paths and no canvas drawing logic at all.