docs: modules do not rely on models, services do (#17861)

services: provide some services for users, usually use
database (models) modules: provide some basic functions without
database, eg: code parser, etc The major difference is services use
database, while modules don’t.

Signed-off-by: singuliere <singuliere@autistici.org>
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singuliere 2021-11-30 12:56:12 +01:00 committed by GitHub
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@ -38,7 +38,7 @@ To maintain understandable code and avoid circular dependencies it is important
- `models/db`: Basic database operations. All other `models/xxx` packages should depend on this package. The `GetEngine` function should only be invoked from `models/`.
- `models/fixtures`: Sample data used in unit tests and integration tests. One `yml` file means one table which will be loaded into database when beginning the tests.
- `models/migrations`: Stores database migrations between versions. PRs that change a database structure **MUST** also have a migration step.
- `modules`: Different modules to handle specific functionality in Gitea. Work in Progress: Some of them should be moved to `services`.
- `modules`: Different modules to handle specific functionality in Gitea. Work in Progress: Some of them should be moved to `services`, in particular those that depend on models because they rely on the database.
- `modules/setting`: Store all system configurations read from ini files and has been referenced by everywhere. But they should be used as function parameters when possible.
- `modules/git`: Package to interactive with `Git` command line or Gogit package.
- `public`: Compiled frontend files (javascript, images, css, etc.)