doctrine-relations SKILL.md skillA
doctrine-relations from dev-toolings/superpowers-symfony is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dev-toolings/superpowers-symfony/doctrine-relations@git:20261005.d9aebf3Pins git:20261005.d9aebf3 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dev-toolings/superpowers-symfony
- Path
content/skills/doctrine-relations/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.d9aebf3, committed Oct 5, 2026
- First version recorded
- Sep 17, 2026
- Size
- 2,230 bytes
- Repository stars
- 231
- License
- MIT
Define Doctrine entity relationships (OneToMany, ManyToMany, ManyToOne); configure cascade, orphan removal, multiple entity managers; prevent N+1 queries.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Doctrine Relations (Symfony) ## Use when - Mapping a `ManyToOne`, `OneToMany`, `ManyToMany` or `OneToOne` and choosing the owning side. - Deciding between `cascade` and `orphanRemoval` for child entities. - A relation does not persist (only the inverse side was set), or `contains()` is slow on a large inverse collection. - Splitting entities across several entity managers. ## Default workflow 1. Pick the owning side (holds the foreign key, `ManyToOne` with `inversedBy`) and the inverse side (`OneToMany` with `mappedBy`). 2. Initialize collections with `ArrayCollection` in the constructor, and write `addX()` and `removeX()` helpers that keep both sides in sync. 3. Use `cascade: ['persist']` for aggregates saved together, and `orphanRemoval: true` only for true composition. 4. Mark large inverse collections `fetch: 'EXTRA_LAZY'`, or test membership from the owning side. 5. Add fetch joins where a use case reads the relation, to avoid N+1 queries. 6. With several entity managers, keep each entity set in one manager and fetch repositories through `ManagerRegistry`. ## Guardrails - Doctrine persists what the owning side holds: always set the `ManyToOne` reference. …
Read the whole file at its exact version.
How to install
mdr add dev-toolings/superpowers-symfony/doctrine-relations@sha256:ca1dac8dfdc36120The line at the top of this page pins the label git:20261005.d9aebf3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_a7xpykkcobdhaupe)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 17, 2026 and Oct 5, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.d9aebf3 latest | 2026-10-05 | d9aebf3 | 2,230 B | A | view · diff |
| git:20261005.042befb | 2026-10-05 | 042befb | 1,215 B | A | view · diff |
| git:20260917.3d83f4c | 2026-09-17 | 3d83f4c | 1,244 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2230 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
dev-toolings/superpowers-symfony · 231 stars · license MIT · pushed 2026-10-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_a7xpykkcobdhaupe GET https://markdownregistry.com/api/v1/resolve?ref=dev-toolings/superpowers-symfony/doctrine-relations GET https://markdownregistry.com/api/v1/blob/ca1dac8dfdc3612005ec2ae8e3918d36adb1a8f43283e6d1a3e03b8becc11c13
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.