RailsCác thư mục quan trọng cần biết:
app/
controllers/ # Controller classes
models/ # Model classes (Active Record)
views/ # ERB templates
jobs/ # Active Job classes
mailers/ # Action Mailer classes
config/
routes.rb # Toàn bộ định nghĩa route
database.yml # Cấu hình DB (dev/test/prod)
db/
schema.rb # Schema hiện tại (auto-generated)
migrate/ # Migration files
test/ (hoặc spec/) # Tests
Gemfile # DependenciesCoC quy định: model User → file app/models/user.rb → bảng DB users.
Không cần khai báo mapping — Rails suy ra từ tên.
Key directories to know:
app/
controllers/ # Controller classes
models/ # Model classes (Active Record)
views/ # ERB templates
jobs/ # Active Job classes
mailers/ # Action Mailer classes
config/
routes.rb # All route definitions
database.yml # DB config (dev/test/prod)
db/
schema.rb # Current schema (auto-generated)
migrate/ # Migration files
test/ (or spec/) # Tests
Gemfile # DependenciesCoC dictates: model User → file app/models/user.rb → DB table users.
No explicit mapping needed — Rails infers it from the name.