ruby
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Table of Contents
Ruby
Rails
Seed Data
bundle add faker # Add it to only the development and test groups, if you are a stickler for convention # In db/seeds.rb 50.times do MyModel.create! name: Faker::Name.name end rails db:migrate && rails db:seed
Scaffolding
rails g scaffold MyModel field1:string
Data Types:
- binary
- boolean
- date
- datetime
- decimal
- float
- integer
- primary_key
- string
- text
- time
- timestamp
- references
Example for references:
rails g scaffold Country name:string rails g scaffold City name:string country:references
Multiple References
To create multiple references to another model (for different attribute fields):
# The other model
rails g Country name
# In the scaffold command
rails g scaffold Staff residing_country:references
# In the migration
t.references :residing_country, null: false, foreign_key: { to_table: :countries }
# In the model
belongs_to :residing_country, class_name: 'Country', foreign_key: 'residing_country_id'
Resetting the Database
rm storage/development.sqlite db/schema.rb rails db:drop db:create db:migrate
ruby.1773503236.txt.gz · Last modified: by reddy
