Redmine/app/models/role.rb

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# Redmine - project management software
# Copyright (C) 2006-2012 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class Role < ActiveRecord::Base
# Custom coder for the permissions attribute that should be an
# array of symbols. Rails 3 uses Psych which can be *unbelievably*
# slow on some platforms (eg. mingw32).
class PermissionsAttributeCoder
def self.load(str)
str.to_s.scan(/:([a-z0-9_]+)/).flatten.map(&:to_sym)
end
def self.dump(value)
YAML.dump(value)
end
end
# Built-in roles
BUILTIN_NON_MEMBER = 1
BUILTIN_ANONYMOUS = 2
ISSUES_VISIBILITY_OPTIONS = [
['all', :label_issues_visibility_all],
['default', :label_issues_visibility_public],
['own', :label_issues_visibility_own]
]
scope :sorted, order("#{table_name}.builtin ASC, #{table_name}.position ASC")
scope :givable, order("#{table_name}.position ASC").where(:builtin => 0)
scope :builtin, lambda { |*args|
compare = (args.first == true ? 'not' : '')
where("#{compare} builtin = 0")
}
before_destroy :check_deletable
has_many :workflow_rules, :dependent => :delete_all do
def copy(source_role)
WorkflowRule.copy(nil, source_role, nil, proxy_association.owner)
end
end
has_many :member_roles, :dependent => :destroy
has_many :members, :through => :member_roles
acts_as_list
serialize :permissions, ::Role::PermissionsAttributeCoder
attr_protected :builtin
validates_presence_of :name
validates_uniqueness_of :name
validates_length_of :name, :maximum => 30
validates_inclusion_of :issues_visibility,
:in => ISSUES_VISIBILITY_OPTIONS.collect(&:first),
:if => lambda {|role| role.respond_to?(:issues_visibility)}
# Copies attributes from another role, arg can be an id or a Role
def copy_from(arg, options={})
return unless arg.present?
role = arg.is_a?(Role) ? arg : Role.find_by_id(arg.to_s)
self.attributes = role.attributes.dup.except("id", "name", "position", "builtin", "permissions")
self.permissions = role.permissions.dup
self
end
def permissions=(perms)
perms = perms.collect {|p| p.to_sym unless p.blank? }.compact.uniq if perms
write_attribute(:permissions, perms)
end
def add_permission!(*perms)
self.permissions = [] unless permissions.is_a?(Array)
permissions_will_change!
perms.each do |p|
p = p.to_sym
permissions << p unless permissions.include?(p)
end
save!
end
def remove_permission!(*perms)
return unless permissions.is_a?(Array)
permissions_will_change!
perms.each { |p| permissions.delete(p.to_sym) }
save!
end
# Returns true if the role has the given permission
def has_permission?(perm)
!permissions.nil? && permissions.include?(perm.to_sym)
end
def <=>(role)
if role
if builtin == role.builtin
position <=> role.position
else
builtin <=> role.builtin
end
else
-1
end
end
def to_s
name
end
def name
case builtin
when 1; l(:label_role_non_member, :default => read_attribute(:name))
when 2; l(:label_role_anonymous, :default => read_attribute(:name))
else; read_attribute(:name)
end
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
Role.givable.all
end
# Return the builtin 'non member' role. If the role doesn't exist,
# it will be created on the fly.
def self.non_member
find_or_create_system_role(BUILTIN_NON_MEMBER, 'Non member')
end
# Return the builtin 'anonymous' role. If the role doesn't exist,
# it will be created on the fly.
def self.anonymous
find_or_create_system_role(BUILTIN_ANONYMOUS, 'Anonymous')
end
private
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
def self.find_or_create_system_role(builtin, name)
role = where(:builtin => builtin).first
if role.nil?
role = create(:name => name, :position => 0) do |r|
r.builtin = builtin
end
raise "Unable to create the #{name} role." if role.new_record?
end
role
end
end