Example model preset fields

job_preset_fields.rb

class Job < ActiveRecord::Base
  def preset_fields
    if category.name == "Repair" || category.name == "Maintenance"
      quote_sections.create!(:description => "Labour", :amount => 0)
      quote_sections.create!(:description => "Materials", :amount => 0)
      quote_sections.create!(:description => "Travel", :amount => 0)
      quote_sections.create!(:description => "Courier", :amount => 0)
    end
    
    category.base_projects.each do |bp|
      projects.create!(:category => bp.project_category)
    end
  end
end