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https://github.com/railstack/go-on-rails
:bullettrain_side: Use Rails to Develop or Generate a Golang Application.
https://github.com/railstack/go-on-rails
code-generator crud crud-api generator golang golang-crud rails rails-generators restful-generator ruby transpiler
Last synced: 6 days ago
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:bullettrain_side: Use Rails to Develop or Generate a Golang Application.
- Host: GitHub
- URL: https://github.com/railstack/go-on-rails
- Owner: railstack
- License: mit
- Archived: true
- Created: 2017-04-04T15:39:44.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2021-10-12T18:05:46.000Z (over 3 years ago)
- Last Synced: 2025-01-16T14:39:31.857Z (15 days ago)
- Topics: code-generator, crud, crud-api, generator, golang, golang-crud, rails, rails-generators, restful-generator, ruby, transpiler
- Language: HTML
- Homepage:
- Size: 1.27 MB
- Stars: 289
- Watchers: 9
- Forks: 16
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- Changelog: changelogs/README.md
- Funding: .github/FUNDING.yml
- License: MIT-LICENSE
Awesome Lists containing this project
README
Go on Rails
Use Rails to generate Golang code or manage Go app development
---
[用 Rails 开发 Go 应用：中文文档](./README_zh.md)
`go-on-rails` is a Rails generator aims to:
1. Help to develop and integrate some APIs written in Golang to existing Rails app for high performance
2. Use your familiar Rails tools to develop and manage a Golang app project
3. Convert a *not very complicated* Rails app to Golang equivalent
Here's some examples:
* A simple [example(tutorial)](https://github.com/railstack/example_simple) on the basic usage of go-on-rails generator
* [An advanced example](https://github.com/railstack/example_with_admin) shows how to integrate Go APIs in a Rails project
* [Another example](https://github.com/railstack/example_read_rails_session) shows how to handle a Rails session to get a user's info in a go-on-rails generated Go API
## Prerequisites
* Rails 4.2+ (Rails 6 not supported and need your help)
* Golang 1.10.x(mainly be compatible with github.com/go-sql-driver/mysql)
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'go-on-rails', '~> 0.4.0'
```
And then execute:
```bash
$ bundle
```
Or install it yourself as:
```bash
$ gem install go-on-rails
```
## Usage
You must have an existing Rails app or to create a new one before you try go-on-rails to generate Golang codes.
After that you can run the command just as other Rails generators:
```bash
rails g gor [dev(elopment) | pro(duction) | test | ...] [-m model_a model_b model_c ...]
# OR (on rails version < 5.0)
rake g gor ...
```
here we take generating all models for the `development` environment for example:
```bash
rails g gor dev
```
Then a folder named `go_app` that includes Golang codes will be generated under your Rails app root path.
Install the dependent Golang packages for this Go project:
```bash
rails gor:deps
```
Then change to the `go_app` directory and run:
```bash
go run main.go
```
You can visit the page in http://localhost:4000 by default.
More command details about go-on-rails generator:
```bash
rails g gor --help
```
## What will be generated?
* Go project directory layout (all under the `go_app` directory, like `views`, `controllers`, `public`)
* A Go data struct corresponding to each activerecord model
* And each struct related CRUD functions/methods like FindModel, UpdateModel, DestroyModel etc. All these models related program files under the `go_app/models` directory
* And godoc files for all the functions under `go_app/models/doc`
* We use [Gin](https://github.com/gin-gonic/gin) as the default web framework, but you can change it to anyone that you favor in `main.go` and `controllers` programs
### View the godoc of all functions
You can view the godoc page of all functions in http://localhost:7979/doc/models.html after run:
```bash
rails gor:doc
```
Besides, there's [a sample project](https://github.com/railstack/gor_models_sample) generated by go-on-rails, you can view its [godoc](https://godoc.org/github.com/railstack/gor_models_sample) at godoc.org just now to get a picture of what functions are generated.
## Known issues and TODOs
The gem is still under development, so there're some known issues. You're welcomed to [contribute](#contributing). 👏
* databases specific functions between MySQL and Postgres or other databases are not covered completely
* sql.NullType not supported yet, so you'd better in the migrations set those columns "not null" with a default value that's consistent with Golang's zero value specification, such as "" default for string and text typed column, and 0 default for int, etc. And now we have an alternative approach for manipulating the database nullable fields, see the wiki [Working with database nullable fields](https://github.com/railstack/go-on-rails/wiki/Working-with-database-nullable-fields)
- [x] Associations
- [x] has_many
- [x] has_one
- [x] belongs_to
- [x] dependent
- [x] Validations
- [x] length
- [x] presence
- [x] format(string only)
- [x] numericality(partially)
- [ ] other validations
- [x] Pagination(details see [wiki](https://github.com/railstack/go-on-rails/wiki/Pagination))
- [ ] Callbacks
- [ ] Transactions
## Supported databases
* SQLite
* MySQL
* Postgres
## Wiki
* [Built-in Pagination](https://github.com/railstack/go-on-rails/wiki/Pagination)
* [Working with database nullable fields](https://github.com/railstack/go-on-rails/wiki/Working-with-database-nullable-fields)
* [Some Make commands](https://github.com/railstack/go-on-rails/wiki/Some-Make-commands)
* [Dockerize a Go-on-Rails application](https://github.com/railstack/go-on-rails/wiki/Dockerize-a-Go-on-Rails-application)
## Golang dependencies by default
* [github.com/jmoiron/sqlx](https://github.com/jmoiron/sqlx): an extension on the standard `database/sql` database API library
* [github.com/railstack/go-sqlite3](https://github.com/railstack/go-sqlite3): a SQLite driver(This's a forked version of [mattn/go-sqlite3](https://github.com/mattn/go-sqlite3), and This is [why we use this forked version](https://github.com/mattn/go-sqlite3/pull/468))
* [github.com/go-sql-driver/mysql](https://github.com/go-sql-driver/mysql): a MySQL driver
* [github.com/lib/pq](https://github.com/lib/pq): a PostgreSQL driver
* [github.com/asaskevich/govalidator](https://github.com/asaskevich/govalidator): for the struct validation
* [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin): a HTTP web framework
## Acknowledgement
When I had the idea to convert Rails app or build Golang app with Rails tools, I searched github and found the project: https://github.com/t-k/ar2gostruct. And from ar2gostruct I copied some codes on handling data structure conversion and models association, it made my idea come true faster than I imagined.
## Contributing
There're two branches at present: `master` and `dev`.
The `dev` branch has a whole Rails environment for development: models, seeds for testing, and under `go_app` directory there's a file named `models_test.go` used to test generated Golang codes.
- Fork the project switch to branch `dev`.
- Make your feature addition or bug fix.
- Add tests for it. This is important so I don't break it in a future version unintentionally.
- Commit, do not mess with Rakefile or version (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
- Send me a pull request. Bonus points for topic branches.
### Testing
We create four models for testing:
- Physician
- Patient
- Appointment
- Picture
Run `rails db:seed` to use the data defined in `db/seeds.rb`. And change to `go_app/models` directory to run `go test` to test generated models-related functions. The test covers a small part of the functions currently. More will be added later on.
## License
See the [LICENSE](https://github.com/railstack/go-on-rails/blob/master/MIT-LICENSE) file.