1 files changed, 74 insertions, 4 deletions
diff --git a/app/models/role.rb b/app/models/role.rb
index 98d735e8e..015146dc4 100644
--- a/app/models/role.rb
+++ b/app/models/role.rb
@@ -16,23 +16,93 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 class Role < ActiveRecord::Base
-  before_destroy :check_integrity  
-  has_and_belongs_to_many :permissions
+  # Built-in roles
+  BUILTIN_NON_MEMBER = 1
+  BUILTIN_ANONYMOUS  = 2
+  
+  before_destroy :check_deletable
   has_many :workflows, :dependent => :delete_all
   has_many :members
   acts_as_list
+  
+  serialize :permissions
+  attr_protected :builtin
 
   validates_presence_of :name
   validates_uniqueness_of :name
   validates_length_of :name, :maximum => 30
   validates_format_of :name, :with => /^[\w\s\'\-]*$/i
 
+  def permissions
+    read_attribute(:permissions) || []
+  end
+  
+  def permissions=(perms)
+    perms = perms.collect {|p| p.to_sym unless p.blank? }.compact if perms
+    write_attribute(:permissions, perms)
+  end
+  
   def <=>(role)
     position <=> role.position
   end
   
+  # Return true if the role is a builtin role
+  def builtin?
+    self.builtin != 0
+  end
+  
+  # Return true if the role is a project member role
+  def member?
+    !self.builtin?
+  end
+  
+  # Return true if role is allowed to do the specified action
+  # action can be:
+  # * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
+  # * a permission Symbol (eg. :edit_project)
+  def allowed_to?(action)
+    if action.is_a? Hash
+      allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
+    else
+      allowed_permissions.include? action
+    end
+  end
+  
+  # Return all the permissions that can be given to the role
+  def setable_permissions
+    setable_permissions = Redmine::AccessControl.permissions - Redmine::AccessControl.public_permissions
+    setable_permissions -= Redmine::AccessControl.members_only_permissions if self.builtin == BUILTIN_NON_MEMBER
+    setable_permissions -= Redmine::AccessControl.loggedin_only_permissions if self.builtin == BUILTIN_ANONYMOUS
+    setable_permissions
+  end
+
+  # Find all the roles that can be given to a project member
+  def self.find_all_givable
+    find(:all, :conditions => {:builtin => 0}, :order => 'position')
+  end
+
+  # Return the builtin 'non member' role
+  def self.non_member
+    find(:first, :conditions => {:builtin => BUILTIN_NON_MEMBER}) || raise('Missing non-member builtin role.')
+  end
+
+  # Return the builtin 'anonymous' role 
+  def self.anonymous
+    find(:first, :conditions => {:builtin => BUILTIN_ANONYMOUS}) || raise('Missing anonymous builtin role.')
+  end
+
+  
 private
-  def check_integrity
-    raise "Can't delete role" if Member.find(:first, :conditions =>["role_id=?", self.id])
+  def allowed_permissions
+    @allowed_permissions ||= permissions + Redmine::AccessControl.public_permissions.collect {|p| p.name}
+  end
+
+  def allowed_actions
+    @actions_allowed ||= allowed_permissions.inject([]) { |actions, permission| actions += Redmine::AccessControl.allowed_actions(permission) }.flatten
+  end
+    
+  def check_deletable
+    raise "Can't delete role" if members.any?
+    raise "Can't delete builtin role" if builtin?
   end
 end