I use NoSQL in my project when I need to save log of requests or have monthly / weekly / daily reports that requires pull data from multiple tables and saves it to separated database or tracks the histories of some important records. In short, whenever I deal with data with no structure or read / write heavy.
1. Create a Rails project as normal and config connect to postgresql
2. Add gem mongoid to the gemfile and create mongoid.yml file
1. Create a Rails project as normal and config connect to postgresql
2. Add gem mongoid to the gemfile and create mongoid.yml file
development:
clients:
default:
database: multidb_development
hosts:
- localhost:27017
options:
server_selection_timeout: 1
test:
clients:
default:
database: multidb_test
hosts:
- localhost:27017
options:
read:
mode: :primary
max_pool_size: 1config/mongoid.yml
3. Create a model (not inherited from ApplicationRecord)
3. Create a model (not inherited from ApplicationRecord)
class Log include Mongoid::Document include Mongoid::Timestamps # auto generate created_at, updated_at when create / update record field :controller, type: String field :action, type: String end
app/models/log.rb
4. Test it
4. Test it
class ApplicationController < ActionController::Base
before_action :write_log
def write_log
# Store log in mongo db
Log.create(controller: controller_name, action: action_name)
end
end5. Code example
- https://github.com/LuuDai-bit/multidb