Can FactoryBot generate factories after your models have been created?
First thing, look at the source project to find out how it was implemented:
https://github.com/thoughtbot/factory_bot_rails/blob/master/lib/generators/factory_bot/model/model_generator.rb
After that, try to guess how it works:
rails g factory_bot:model Car name speed:integer
The result is:
create test/factories/cars.rb
And the content:
# Read about factories at https://github.com/thoughtbot/factory_girl
FactoryBot.define do
factory :car do
name "MyString"
speed 1
end
end
Remember, when you use rails g, you can always undo it, with rails d
rails d factory_bot:model Car name speed:integer
Note: FactoryBot was previously named FactoryGirl
The --fixture-replacement
option will let you tell rails what to generate for building test data. You can set this as a default in your config/application.rb
file, like so:
config.generators do |g|
g.fixture_replacement :factory_bot, suffix_factory: 'factory'
end
Source: https://github.com/thoughtbot/factory_bot_rails/blob/master/features/fixture_replacement_config.feature#L21
I have a gem for exactly this https://github.com/markburns/to_factory
This works for me using rails g factory_bot:model User either running the command or just puts'ing the command out. You do still have to fill in the value.
@run_command = true
@force = true
@columns_to_ignore = %w[id created_at update_at]
@tables_to_ignore = %w[schema_migrations ar_internal_metadata]
tables = ActiveRecord::Base.connection.tables.reject{|t| (@tables_to_ignore || []).include?(t)}
tables.each do |table|
klass = table.singularize.camelcase.constantize
command = "rails g factory_bot:model #{klass.to_s} #{klass.columns.reject do |c|
(@columns_to_ignore || []).include?(c.name)
end.map do |d|
"#{d.name}:#{d.sql_type == 'jsonb' ? 'json' : d.type}"
end.join(' ')}"
command << ' --force' if @force
puts command
puts %x{#{command}} if @run_command
puts (1..200).to_a.map{}.join('-')
end