Decoupling Presentation in TYPO3: Custom Content Elements with Fluid
Learn how to build custom content elements in TYPO3 using TCA overrides and Fluid templates to decouple backend data from frontend presentation.
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Choosing a Caching Backend for TYPO3 v11 LTS: Redis, APCu, or File‑based
Guide to select a caching backend for TYPO3 v11 LTS, comparing Redis, APCu and file‑based options with constraints, trade‑offs and a sample configuration.
redisReplacing TYPO3 Hooks with PSR-14 Event Listeners: A Practical Migration
TYPO3's PSR-14 event listeners replace stringly-typed hooks with typed, ordered, injectable classes. Here's a worked migration example, plus where hooks are still unavoidable.
Enable and Configure TYPO3 Frontend Output Caching with TypoScript
Learn how to turn on TYPO3’s frontend output cache with TypoScript, set lifetimes and tags, switch backends, and verify caching via response headers.
Does TYPO3 automatically recover custom extension table schemas after a failed core upgrade?
When a TYPO3 core upgrade fails after the database migration step, the built‑in rollback mechanism restores the system to the pre‑upgrade backup, but it does not track schema changes made to custom database tables created by third‑party extensions. Administrators are left to decide whether those tables remain usable, need manual correction, or should be disc
Duplicate Backend Layout Identifiers in Page TSconfig – Missing Uniqueness Check
Duplicate Backend Layout Identifiers in Page TSconfig The goal is to guarantee that each backend layout defined in Page TSconfig uses a unique identifier so that the backend layout dropdown reflects all available layouts and the rendered column structure matches the intended definition. In TYPO3 10 LTS and 11 LTS the Page TSconfig parser processes entries un
Image processing failure in production despite local success
The goal is to reproduce the production image‑processing failure while preserving the working local configuration, focusing on the [GFX] processor_path setting and its interaction with the web‑server user’s environment. Constraints include the unknown availability of ImageMagick or GraphicsMagick binaries for the www‑data user, possible open_basedir or disab
TYPO3 site baseVariants fallback order and CLI versus web context drift
Site base resolution when no variant matches In TYPO3 v9–v13, each site defines a static base URI in config/sites/<identifier>/config.yaml and optional baseVariants that override it when a condition evaluates true. Conditions are evaluated against the application context derived from TYPO3_CONTEXT and the runtime environment. Consequently, a web reques
Prototype instance cleanup behavior in long-running CLI processes
Context The Extbase ObjectManager was patched in TYPO3 10.4.14 and 11.5.2 to stop retaining prototype-scoped objects in the singleton cache, allowing them to be garbage-collected. The change prevents unbounded memory growth when prototype dependencies are created repeatedly during a single long-running CLI command or daemon. Open behavior After the fix, prot