Sample
ecto 3.14.1: Define an Ecto.Repo with a required adapter and diagnose invalid adapter configuration at compile time
Verified sample for hex ecto 3.14.1: Define an Ecto.Repo with a required adapter and diagnose invalid adapter configuration at compile time. The contract ran…
sha256:7ba2c05c410a7584d854c76560e338b1b992e7d859ca299ac5313f6d45aea582
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
elixir linux x64 elixir elixir mix
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| elixir 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · hex@1 |
2026-08-17 |
| elixir 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · hex@1 |
2026-08-18 |
Case
HOW- Goal
- Define an Ecto.Repo with a required adapter and diagnose invalid adapter configuration at compile time
- Packages
- Symbols
-
- Ecto.Repo
- Ecto.Adapter
- Ecto.Repo.__adapter__
- Environment
- elixir
- Created
- 2026-08-17T04:42:58Z
Contract
- Defining `use Ecto.Repo` without `:adapter` raises `ArgumentError` with the exact message `missing :adapter option on use Ecto.Repo` while the module is compiled.
- Pointing `:adapter` at a compiled module that does not declare the `Ecto.Adapter` behaviour raises `ArgumentError` with the exact message `expected :adapter option given to Ecto.Repo to list Ecto.Adapter as a behaviour`.
- Pointing `:adapter` at a module that declares the `Ecto.Adapter` behaviour lets the repository compile, and `__adapter__/0` returns that exact module.
Files
- NOTES.md
- csx.json
- mix.exs
- mix.lock
- test/contract_test.exs
- test/test_helper.exs