Now that mongoid is setup, you can delete the /db folder, the config/database.yml file, and remove the database gem from your Gemfile ( sqlite3, pg, etc. To view all the mongoid configuration options, you can view the mongoid docs We can now generate the default mongoid configuration file: $ rails g mongoid:config Now, you have to stop spring: $ spring stop & spring start Let's setup Mongoid now: Mongoid Setupįirst, add the Mongoid gem to your application: gem 'mongoid', '~> 7.0.6' ( or the latest current version) Deleting these files now can cause errors because until we generate the mongoid.yml, rails will still be looking for a database configuration. You might be wondering why we haven't deleted the /db directory and the config/database.yml file. You can also delete the /storage directory and your config/storage.yml file To remove this, run: $ yarn remove remove this line from your application.js webpack entry point file: require ( ). We also need to remove the active_storage npm package. For example: config.active_record.dump_schema_after_migration = false Now that we are not using active_record, any references to it in files in the config directory need to be removed. Mongoid will take the place of active_record, and because active_storage depends on active_record, it cannot be used with Mongoid.
Note that active_record and active_storage are not being required. # uncomment if your app uses rails test_unit # uncomment if your app uses the asset pipeline If you want to use Mongoid however, you need to remove this line and instead explicitly choose all the frameworks you want for your app. This line is telling rails to include all the default frameworks. If you go to your config/application.rb file, you will most likely see the following. Getting rails to switch to Mongoid can be tricky, but if you follow all the steps, you should be able to get it to work. Mongoid accepts all the ActiveRecord associations, validations, and callbacks you are used to. Mongoid aims to achieve parity with ActiveRecord, and the Mongoid team has done an excellent job at making the switch as seamless and easy as possible. The officially supported MongoDB ODM for rails is Mongoid. Now that you have MongoDB installed, you have to configure your rails application to use it as your default database. $ brew install view the installation process for all operating systems, refer to the MongoDB docs Rails Configuration If you're on a mac, you can do this with Homebrew: $ brew tap mongodb/brew If you have a production app with data that needs to migrated, you might want to look at the pg2mongo migration framework, or view the official MongoDB migration guide MongoDB Installationįirst, we have to install MongoDB. Note that this post does not cover migrating your data from a RDBMS. I am currently converting the entire application from PostgresQL to MongoDB, and thought I'd share what I learned along the way. Recently, while working on a rails project, I realized that MongoDB was a better fit for my database design.
0 kommentar(er)
