fixture.rb

User.fixture {{
  :login => /\w+/.gen,
  :email => "#{/\w+/.gen}.#{/\w+/.gen}@gmail.com",
  :password => "tintinpouet",
}}

Function.fixture(:admin) {{
  :name => 'Admin'
}}

admin = User.gen(:login => 'admin')
admin_function = Function.gen(:admin)

Project.fixture {{
  :name => /\w+/.gen,
  :description => (0..3).of { /[:paragraph:]/.generate }.join("\n"),
  :tickets => (0..10).of {Ticket.make},
  :members => [:user => admin, :function => admin_function]
}}

function.rb

class Function
  include DataMapper::Resource
  
  property :id, Serial
  property :name, String, :nullable => false, :unique => true

  has n, :members
  has n, :users, :through => :members
  has n, :projects, :through => :members


end

member.rb

class Member
  include DataMapper::Resource

  property :id, Serial
  belongs_to :function
  belongs_to :user
  belongs_to :project


end