# Typo3 Batch

> Plans and executes batch TYPO3 migrations and large-scale refactors across hooks, PSR-14 events, TCA, dependency injection, Fluid, namespaces, ext_localconf, Content Blocks, localization, and PHP upgrades. Use when the user asks for bulk migration, mass refactor, codemod-style TYPO3 updates, repeated fixes across an extension, or coordinated v14 modernization.

- Skill: `dirnbauer/typo3-batch` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add dirnbauer/typo3-batch`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dirnbauer/typo3-batch/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools, Integrations & APIs
- License: MIT / CC-BY-SA-4.0
- Author: dirnbauer (https://skillmd.com/u/dirnbauer)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/dirnbauer/typo3-batch

---

# TYPO3 Batch Operations

> Source: https://github.com/dirnbauer/webconsulting-skills

> Adapted from Boris Cherny's (Anthropic) Claude Code `/batch` skill for TYPO3 contexts.
> **Target:** TYPO3 v14.x only.

Orchestrate large-scale, parallelizable changes across a TYPO3 codebase. Decompose work
into 5–30 independent units, present a plan, then execute each unit with verification.

## Process

1. **Research**: Scan codebase to find all affected files
2. **Decompose**: Split work into independent, non-conflicting units
3. **Plan**: Present numbered plan to user for approval
4. **Execute**: Apply each unit, run verification after each
5. **Report**: Summarize changes, list any failures

## Execution Rules

- Each unit must be independently verifiable
- Never modify the same file in two different units
- Run `composer normalize` / `php -l` / PHPStan after PHP changes
- Run tests if available (`vendor/bin/phpunit`)
- Commit each unit separately with descriptive message
- Stop and report if a unit breaks tests

## Common TYPO3 Batch Operations

### 1. Hook → PSR-14 Event Migration

**Research**: Find all entries in `$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']` and
`$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']`.

**Decompose**: One unit per hook class.

**Per unit:**

```
1. Identify the hook interface/method
2. Find the corresponding PSR-14 event (see mapping below)
3. Create new event listener class with #[AsEventListener]
4. Move logic from hook method to __invoke()
5. Remove hook registration from ext_localconf.php
6. If **not** using `#[AsEventListener]`: register the listener in `Services.yaml`. With the attribute and `autoconfigure: true` (default), no extra `tags:` entry is required.
7. Run php -l on new file
```

**Hook → event mapping (verify in [Core event lists](https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/ApiOverview/Events/Events/Index.html)):**

> **DataHandler (`t3lib/class.t3lib_tcemain.php`):** TYPO3 Core does **not** expose generic PSR-14 events named like `BeforeRecordOperationEvent` / `AfterRecordOperationEvent` under `TYPO3\CMS\Core\DataHandling\Event`. For datamap/cmdmap reactions, use **`SC_OPTIONS` hook classes** (see [typo3-datahandler](../typo3-datahandler/SKILL.md) §9). Do not “migrate” those hooks to non-existent events.

| Hook / legacy API | Typical direction |
|---|---|
| `processDatamap_afterDatabaseOperations` / related `SC_OPTIONS` | Keep **`processDatamapClass`** hook methods (no 1:1 Core event) |
| `processDatamap_preProcessFieldArray` | Keep hook or narrow Core events for your table/field if documented |
| `processCmdmap_postProcess` | Keep **`processCmdmapClass`** hook methods |
| `drawHeaderHook` | `ModifyPageLayoutContentEvent` (Breaking #96526) |
| `drawFooterHook` | `ModifyPageLayoutContentEvent` (Breaking #96526) |
| `checkFlexFormValue` | Still often a hook; **`AfterFlexFormDataStructureParsedEvent`** is for DS parsing, not a drop-in for validation — confirm in Core for your case |
| `PageRenderer` render hooks (`render-preProcess`, `render-postProcess`) | No 1:1 PSR-14 replacement; prefer PSR-15 middleware for render-pipeline manipulation |
| `tslib_fe->contentPostProc` (cached) | `AfterCacheableContentIsGeneratedEvent` |
| `tslib_fe->contentPostProc` (output) | No PSR-14 event — use a PSR-15 middleware (Deprecation #91012); `AfterCachedPageIsPersistedEvent` replaces `insertPageIncache`, not this hook |
| `tslib_fe->contentPostProc` (all) | `AfterCacheableContentIsGeneratedEvent` (Breaking #97862; also covers `usePageCache`) |
| `BackendUtility->getPagesTSconfig` | `ModifyLoadedPageTsConfigEvent` |
| `generatePageTSconfig` | `ModifyLoadedPageTsConfigEvent` |

**Not 1:1 replacements (verify before batch-rewriting):**

- **`drawHeaderHook` / `drawFooterHook`** — Page module header/footer integration points. Replaced by `ModifyPageLayoutContentEvent` (Breaking #96526), which lets listeners add or change header and footer content; `ModifyButtonBarEvent` covers the **button bar** only and is not the migration target.
- **`tslib_fe->contentPostProc`** — Sub-hooks (`all`, `cached`, `output`) run at different FE pipeline stages. Map **cached** and **all** (plus `usePageCache`) → `AfterCacheableContentIsGeneratedEvent`, and `insertPageIncache` → `AfterCachedPageIsPersistedEvent` (Breaking #97862); **`output`** has no PSR-14 event — use a PSR-15 middleware instead.

### 2. TCA modernization (cumulative toward v14 target)

**Research**: Scan all `Configuration/TCA/` and `Configuration/TCA/Overrides/` files.

**Decompose**: One unit per TCA file.

**Per unit:**

```
1. Replace 'eval' => 'required' → 'required' => true
2. Replace 'eval' => 'trim' → keep where trimming is desired (trim is NOT applied by default)
3. Replace 'eval' => 'null' → 'nullable' => true
4. Replace 'eval' => 'int' → 'type' => 'number'
5. Replace 'renderType' => 'inputDateTime' → 'type' => 'datetime'
6. Replace 'renderType' => 'inputLink' → 'type' => 'link'
7. Replace 'renderType' => 'colorPicker' → 'type' => 'color'
8. Replace 'type' => 'input', 'eval' => 'email' → 'type' => 'email'
9. Convert items arrays: [0] => label, [1] => value → ['label' => ..., 'value' => ...]
10. Remove boilerplate columns auto-created from `ctrl` on TYPO3 v14: hidden, starttime, endtime, fe_group, language fields
11. Use palettes for enablecolumns: visibility → hidden, access → starttime, endtime
12. Remove convention fields from ext_tables.sql (auto-added to database)
13. Run php -l to verify syntax
```

### 3. GeneralUtility::makeInstance → DI

**Research**: Find all `GeneralUtility::makeInstance()` calls in Classes/.

**Decompose**: One unit per class file.

**Per unit:**

```
1. Identify all makeInstance calls in the class
2. For each: add constructor parameter with type
3. Replace makeInstance calls with $this->propertyName
4. Add/update Services.yaml if needed
5. Use readonly promoted properties
6. Verify with php -l
```

### 4. Fluid Template Refactoring

**Research**: Scan `Resources/Private/Templates/`, `Partials/`, `Layouts/`.

**Decompose**: One unit per template directory or logical group.

**Per unit:**

```
1. Replace hardcoded strings with <f:translate> keys
2. Add missing XLIFF entries to locallang.xlf
3. Replace <a href="..."> with <f:link.page> or <f:link.typolink>
4. Replace <img> with <f:image>
5. Extract repeated blocks to Partials
6. Add accessibility attributes (alt, aria-label, role)
```

### 5. Namespace Rename / Extension Key Change

**Research**: Find all files containing old namespace/extension key.

**Decompose**: Group by file type (PHP, Fluid, YAML, TypoScript, SQL).

**Per unit:**

```
PHP files:
  1. Replace namespace declarations
  2. Replace use statements
  3. Replace class references in strings (DI, TCA)
  
Fluid files:
  1. Replace {namespace} declarations
  2. Replace ViewHelper references
  
Configuration files:
  1. Update composer.json autoload
  2. Update ext_emconf.php
  3. Update Services.yaml service names
  4. Update TCA table prefixes
  5. Update TypoScript paths (EXT:old → EXT:new)
  
Database:
  1. Generate SQL rename migration
  2. Update ext_tables.sql
```

### 6. ext_localconf / ext_tables Cleanup

**Research**: Scan `ext_localconf.php` and `ext_tables.php` for movable code.

**Decompose**: One unit per concern (TSconfig, TypoScript, icons, modules, plugins).

**Per unit:**

```
Page TSconfig:
  1. Extract addPageTSConfig() calls
  2. Create Configuration/page.tsconfig
  3. Remove from ext_localconf.php

User TSconfig:
  1. Extract addUserTSConfig() calls  
  2. Create Configuration/user.tsconfig
  3. Remove from ext_localconf.php

Icons:
  1. Extract icon registry calls
  2. Move to Configuration/Icons.php (v14)
  3. Remove from ext_localconf.php

Backend modules:
  1. Extract registerModule() calls
  2. Move to Configuration/Backend/Modules.php
  3. Remove from ext_tables.php
```

### 7. Test Infrastructure Setup

**Research**: Check if `Tests/` directory exists, find testable classes.

**Decompose**: One unit per test type.

**Per unit:**

```
Unit tests:
  1. Create Tests/Unit/ structure
  2. Generate test class per service/utility class
  3. Add phpunit.xml.dist configuration
  
Functional tests:
  1. Create Tests/Functional/ structure
  2. Add fixture files
  3. Generate test for repository/DataHandler usage

CI pipeline:
  1. Create .github/workflows/ci.yml
  2. Configure PHP matrix (8.2, 8.3, 8.4, 8.5)
  3. Configure CI matrix (TYPO3 v14, PHP 8.2+)
```

### 8. PHP 8.4 Migration

**Research**: Scan Classes/ for PHP 8.4 migration candidates.

**Decompose**: One unit per class file.

**Per unit:**

```
1. Add property hooks where getter/setter pattern exists
2. Use asymmetric visibility (public private(set)) on DTOs
3. Replace array_search + if with array_find() **only after checking semantics** — `array_search()` returns a **key** for a given value; `array_find()` takes a **callback** and returns the first matching **value** (or null). Not drop-in replacements.
4. Replace array_filter + reset with array_find() where a callback-based “first match” is what you need
5. Replace `foreach` + conditional checks with `array_any()` / `array_all()` for value-based logic. These do **not** replace `array_key_exists()` (key-based checks).
6. Add #[\Deprecated] attribute to legacy methods
7. Run php -l to verify syntax
```

### 9. Content Blocks Migration

**Research**: Scan TCA, ext_tables.sql, and Fluid templates for classic content elements.

**Decompose**: One unit per content element / record type.

**Per unit:**

```
1. Create ContentBlocks/ContentElements/<name>/config.yaml
2. Map TCA columns to YAML fields
3. Move Fluid template to `ContentBlocks/ContentElements/<name>/templates/` (not `Source/`)
4. Align field definitions in `config.yaml` with TCA columns (no separate `EditorInterface.yaml` in Content Blocks)
5. Remove old TCA override file
6. Remove SQL from ext_tables.sql (columns become automatic)
7. Test rendering in frontend
```

### 10. Localization / XLIFF Batch

**Research**: Find all hardcoded strings in Fluid, PHP flash messages, TCA labels.

**Decompose**: One unit per language file scope (frontend, backend, TCA).

**Per unit:**

```
1. Extract strings from templates/PHP
2. Generate XLIFF keys following convention
3. Add entries to Resources/Private/Language/locallang.xlf
4. Replace hardcoded strings with LLL: references
5. Create de.locallang.xlf with German translations (if applicable)
```

## Plan Template

Present to user before executing:

```
## Batch Plan: [Description]

Target: EXT:my_extension (TYPO3 v14)
Files affected: 23
Units: 8

| # | Unit | Files | Risk |
|---|------|-------|------|
| 1 | TCA/Overrides/tt_content.php | 1 | Low |
| 2 | TCA/Overrides/pages.php | 1 | Low |
| 3 | Classes/Controller/ListController.php | 1 | Medium |
| 4 | Classes/Service/ImportService.php | 1 | Medium |
| 5 | Resources/Private/Templates/ (6 files) | 6 | Low |
| 6 | ext_localconf.php → Configuration/ | 4 | Medium |
| 7 | Tests/Unit/ (new) | 5 | Low |
| 8 | locallang.xlf updates | 3 | Low |

Estimated: ~15 minutes

Proceed? [y/n]
```

## Verification Checklist (per unit)

- [ ] `php -l` passes on all modified PHP files
- [ ] `composer normalize` passes (if composer.json touched)
- [ ] PHPStan passes (if configured)
- [ ] Unit tests pass (if available)
- [ ] Functional tests pass (if available)
- [ ] Frontend rendering unchanged (manual spot check)
- [ ] Backend forms still work (manual spot check)

## Abort Conditions

Stop the batch and report if:
- A unit breaks existing tests
- PHP syntax error in generated code
- Two units unexpectedly need the same file
- User requests stop

## v14-Only Batch Migration Targets

> The following batch migration patterns are **v14-specific**.

### Common v14 Batch Operations **[v14 only]**

| Batch Operation | What to Migrate |
|----------------|-----------------|
| Remove `$GLOBALS['TSFE']` | All PHP files referencing TypoScriptFrontendController |
| Annotations → Attributes | All `@validate`, `@ignorevalidation` in Extbase controllers |
| `MailMessage->send()` removed (#108097) → inject `TYPO3\CMS\Core\Mail\MailerInterface` and call `$this->mailer->send($email)` | All email-sending code ([Breaking #108097](https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/14.0/Breaking-108097-MailMessage-sendRemoved.html)) |
| `ctrl.searchFields` removed (v14) → per-field `searchable` in field `config` | See [Breaking: #106972](https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/14.0/Breaking-106972-TCAControlOptionSearchFieldsRemoved.html) |
| TCA `interface` removal | All TCA files with `interface` key |
| Backend module parent IDs | All `Modules.php` with `web`, `file`, `tools` parents |
| Fluid 5.0 types | All Fluid templates with incorrect ViewHelper argument types |
| FlexForm pointer fields | All FlexForm XML with pointer configurations |
| Asset `external` property | All TypoScript with `external = 1` |
| Remove legacy `switchableControllerActions` | Removed in **v12** — not a v14-only migration |
| Remove legacy plugin subtypes / `list_type` wiring | Removed in **v14** (Important [#105538](https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/14.0/Important-105538-ListTypeAndSubTypes.html)) |

---

## Credits & Attribution

Adapted from Boris Cherny's (Anthropic) Claude Code bundled `/batch` skill for TYPO3 contexts.

**Copyright (c) Anthropic** — Batch operation patterns (MIT License)


Source: https://github.com/dirnbauer/webconsulting-skills