view app/models/project.rb @ 1082:997f6d7738f7 bug_531

In repo controller entry action, show the page for the file even if it's binary (so user still has access to history etc links). This makes it possible to use the entry action as the default when a file is clicked on

# Redmine - project management software
# Copyright (C) 2006-2011  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 Project < ActiveRecord::Base
  include Redmine::SafeAttributes

  # Project statuses
  STATUS_ACTIVE     = 1
  STATUS_ARCHIVED   = 9

  # Maximum length for project identifiers
  IDENTIFIER_MAX_LENGTH = 100

  # Specific overidden Activities
  has_many :time_entry_activities
  has_many :members, :include => [:user, :roles], :conditions => "#{User.table_name}.type='User' AND #{User.table_name}.status=#{User::STATUS_ACTIVE}"
  has_many :memberships, :class_name => 'Member'
  has_many :member_principals, :class_name => 'Member',
                               :include => :principal,
                               :conditions => "#{Principal.table_name}.type='Group' OR (#{Principal.table_name}.type='User' AND #{Principal.table_name}.status=#{User::STATUS_ACTIVE})"
  has_many :users, :through => :members
  has_many :principals, :through => :member_principals, :source => :principal

  has_many :enabled_modules, :dependent => :delete_all
  has_and_belongs_to_many :trackers, :order => "#{Tracker.table_name}.position"
  has_many :issues, :dependent => :destroy, :order => "#{Issue.table_name}.created_on DESC", :include => [:status, :tracker]
  has_many :issue_changes, :through => :issues, :source => :journals
  has_many :versions, :dependent => :destroy, :order => "#{Version.table_name}.effective_date DESC, #{Version.table_name}.name DESC"
  has_many :time_entries, :dependent => :delete_all
  has_many :queries, :dependent => :delete_all
  has_many :documents, :dependent => :destroy
  has_many :news, :dependent => :destroy, :include => :author
  has_many :issue_categories, :dependent => :delete_all, :order => "#{IssueCategory.table_name}.name"
  has_many :boards, :dependent => :destroy, :order => "position ASC"
  has_one :repository, :dependent => :destroy
  has_many :changesets, :through => :repository
  has_one :wiki, :dependent => :destroy
  # Custom field for the project issues
  has_and_belongs_to_many :issue_custom_fields,
                          :class_name => 'IssueCustomField',
                          :order => "#{CustomField.table_name}.position",
                          :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}",
                          :association_foreign_key => 'custom_field_id'

  acts_as_nested_set :order => 'name', :dependent => :destroy
  acts_as_attachable :view_permission => :view_files,
                     :delete_permission => :manage_files

  acts_as_customizable
  acts_as_searchable :columns => ['name', 'identifier', 'description'], :project_key => 'id', :permission => nil
  acts_as_event :title => Proc.new {|o| "#{l(:label_project)}: #{o.name}"},
                :url => Proc.new {|o| {:controller => 'projects', :action => 'show', :id => o}},
                :author => nil

  attr_protected :status

  validates_presence_of :name, :identifier
  validates_uniqueness_of :identifier
  validates_associated :repository, :wiki
  validates_length_of :name, :maximum => 255
  validates_length_of :homepage, :maximum => 255
  validates_length_of :identifier, :in => 1..IDENTIFIER_MAX_LENGTH
  # donwcase letters, digits, dashes but not digits only
  validates_format_of :identifier, :with => /^(?!\d+$)[a-z0-9\-]*$/, :if => Proc.new { |p| p.identifier_changed? }
  # reserved words
  validates_exclusion_of :identifier, :in => %w( new )

  before_destroy :delete_all_members

  named_scope :has_module, lambda { |mod| { :conditions => ["#{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name=?)", mod.to_s] } }
  named_scope :active, { :conditions => "#{Project.table_name}.status = #{STATUS_ACTIVE}"}
  named_scope :all_public, { :conditions => { :is_public => true } }
  named_scope :visible, lambda {|*args| {:conditions => Project.visible_condition(args.shift || User.current, *args) }}
  named_scope :visible_roots, lambda { { :conditions => Project.root_visible_by(User.current) } }

  def initialize(attributes = nil)
    super

    initialized = (attributes || {}).stringify_keys
    if !initialized.key?('identifier') && Setting.sequential_project_identifiers?
      self.identifier = Project.next_identifier
    end
    if !initialized.key?('is_public')
      self.is_public = Setting.default_projects_public?
    end
    if !initialized.key?('enabled_module_names')
      self.enabled_module_names = Setting.default_projects_modules
    end
    if !initialized.key?('trackers') && !initialized.key?('tracker_ids')
      self.trackers = Tracker.all
    end
  end

  def identifier=(identifier)
    super unless identifier_frozen?
  end

  def identifier_frozen?
    errors[:identifier].nil? && !(new_record? || identifier.blank?)
  end

  # returns latest created projects
  # non public projects will be returned only if user is a member of those
  def self.latest(user=nil, count=5)
    visible(user).find(:all, :limit => count, :order => "created_on DESC")	
  end	

  # Returns true if the project is visible to +user+ or to the current user.
  def visible?(user=User.current)
    user.allowed_to?(:view_project, self)
  end

  # Returns a SQL conditions string used to find all projects visible by the specified user.
  #
  # Examples:
  #   Project.visible_condition(admin)        => "projects.status = 1"
  #   Project.visible_condition(normal_user)  => "((projects.status = 1) AND (projects.is_public = 1 OR projects.id IN (1,3,4)))"
  #   Project.visible_condition(anonymous)    => "((projects.status = 1) AND (projects.is_public = 1))"
  def self.visible_condition(user, options={})
    allowed_to_condition(user, :view_project, options)
  end

  def self.root_visible_by(user=nil)
    return "#{Project.table_name}.parent_id IS NULL AND " + visible_condition(user)
  end
  
  # Returns a SQL conditions string used to find all projects for which +user+ has the given +permission+
  #
  # Valid options:
  # * :project => limit the condition to project
  # * :with_subprojects => limit the condition to project and its subprojects
  # * :member => limit the condition to the user projects
  def self.allowed_to_condition(user, permission, options={})
    base_statement = "#{Project.table_name}.status=#{Project::STATUS_ACTIVE}"
    if perm = Redmine::AccessControl.permission(permission)
      unless perm.project_module.nil?
        # If the permission belongs to a project module, make sure the module is enabled
        base_statement << " AND #{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}')"
      end
    end
    if options[:project]
      project_statement = "#{Project.table_name}.id = #{options[:project].id}"
      project_statement << " OR (#{Project.table_name}.lft > #{options[:project].lft} AND #{Project.table_name}.rgt < #{options[:project].rgt})" if options[:with_subprojects]
      base_statement = "(#{project_statement}) AND (#{base_statement})"
    end

    if user.admin?
      base_statement
    else
      statement_by_role = {}
      unless options[:member]
        role = user.logged? ? Role.non_member : Role.anonymous
        if role.allowed_to?(permission)
          statement_by_role[role] = "#{Project.table_name}.is_public = #{connection.quoted_true}"
        end
      end
      if user.logged?
        user.projects_by_role.each do |role, projects|
          if role.allowed_to?(permission)
            statement_by_role[role] = "#{Project.table_name}.id IN (#{projects.collect(&:id).join(',')})"
          end
        end
      end
      if statement_by_role.empty?
        "1=0"
      else
        if block_given?
          statement_by_role.each do |role, statement|
            if s = yield(role, user)
              statement_by_role[role] = "(#{statement} AND (#{s}))"
            end
          end
        end
        "((#{base_statement}) AND (#{statement_by_role.values.join(' OR ')}))"
      end
    end
  end

  # Returns the Systemwide and project specific activities
  def activities(include_inactive=false)
    if include_inactive
      return all_activities
    else
      return active_activities
    end
  end

  # Will create a new Project specific Activity or update an existing one
  #
  # This will raise a ActiveRecord::Rollback if the TimeEntryActivity
  # does not successfully save.
  def update_or_create_time_entry_activity(id, activity_hash)
    if activity_hash.respond_to?(:has_key?) && activity_hash.has_key?('parent_id')
      self.create_time_entry_activity_if_needed(activity_hash)
    else
      activity = project.time_entry_activities.find_by_id(id.to_i)
      activity.update_attributes(activity_hash) if activity
    end
  end

  # Create a new TimeEntryActivity if it overrides a system TimeEntryActivity
  #
  # This will raise a ActiveRecord::Rollback if the TimeEntryActivity
  # does not successfully save.
  def create_time_entry_activity_if_needed(activity)
    if activity['parent_id']

      parent_activity = TimeEntryActivity.find(activity['parent_id'])
      activity['name'] = parent_activity.name
      activity['position'] = parent_activity.position

      if Enumeration.overridding_change?(activity, parent_activity)
        project_activity = self.time_entry_activities.create(activity)

        if project_activity.new_record?
          raise ActiveRecord::Rollback, "Overridding TimeEntryActivity was not successfully saved"
        else
          self.time_entries.update_all("activity_id = #{project_activity.id}", ["activity_id = ?", parent_activity.id])
        end
      end
    end
  end

  # Returns a :conditions SQL string that can be used to find the issues associated with this project.
  #
  # Examples:
  #   project.project_condition(true)  => "(projects.id = 1 OR (projects.lft > 1 AND projects.rgt < 10))"
  #   project.project_condition(false) => "projects.id = 1"
  def project_condition(with_subprojects)
    cond = "#{Project.table_name}.id = #{id}"
    cond = "(#{cond} OR (#{Project.table_name}.lft > #{lft} AND #{Project.table_name}.rgt < #{rgt}))" if with_subprojects
    cond
  end

  def self.find(*args)
    if args.first && args.first.is_a?(String) && !args.first.match(/^\d*$/)
      project = find_by_identifier(*args)
      raise ActiveRecord::RecordNotFound, "Couldn't find Project with identifier=#{args.first}" if project.nil?
      project
    else
      super
    end
  end

  def to_param
    # id is used for projects with a numeric identifier (compatibility)
    @to_param ||= (identifier.to_s =~ %r{^\d*$} ? id.to_s : identifier)
  end

  def active?
    self.status == STATUS_ACTIVE
  end

  def archived?
    self.status == STATUS_ARCHIVED
  end

  # Archives the project and its descendants
  def archive
    # Check that there is no issue of a non descendant project that is assigned
    # to one of the project or descendant versions
    v_ids = self_and_descendants.collect {|p| p.version_ids}.flatten
    if v_ids.any? && Issue.find(:first, :include => :project,
                                        :conditions => ["(#{Project.table_name}.lft < ? OR #{Project.table_name}.rgt > ?)" +
                                                        " AND #{Issue.table_name}.fixed_version_id IN (?)", lft, rgt, v_ids])
      return false
    end
    Project.transaction do
      archive!
    end
    true
  end

  # Unarchives the project
  # All its ancestors must be active
  def unarchive
    return false if ancestors.detect {|a| !a.active?}
    update_attribute :status, STATUS_ACTIVE
  end

  # Returns an array of projects the project can be moved to
  # by the current user
  def allowed_parents
    return @allowed_parents if @allowed_parents
    @allowed_parents = Project.find(:all, :conditions => Project.allowed_to_condition(User.current, :add_subprojects))
    @allowed_parents = @allowed_parents - self_and_descendants
    if User.current.allowed_to?(:add_project, nil, :global => true) || (!new_record? && parent.nil?)
      @allowed_parents << nil
    end
    unless parent.nil? || @allowed_parents.empty? || @allowed_parents.include?(parent)
      @allowed_parents << parent
    end
    @allowed_parents
  end

  # Sets the parent of the project with authorization check
  def set_allowed_parent!(p)
    unless p.nil? || p.is_a?(Project)
      if p.to_s.blank?
        p = nil
      else
        p = Project.find_by_id(p)
        return false unless p
      end
    end
    if p.nil?
      if !new_record? && allowed_parents.empty?
        return false
      end
    elsif !allowed_parents.include?(p)
      return false
    end
    set_parent!(p)
  end

  # Sets the parent of the project
  # Argument can be either a Project, a String, a Fixnum or nil
  def set_parent!(p)
    unless p.nil? || p.is_a?(Project)
      if p.to_s.blank?
        p = nil
      else
        p = Project.find_by_id(p)
        return false unless p
      end
    end
    if p == parent && !p.nil?
      # Nothing to do
      true
    elsif p.nil? || (p.active? && move_possible?(p))
      # Insert the project so that target's children or root projects stay alphabetically sorted
      sibs = (p.nil? ? self.class.roots : p.children)
      to_be_inserted_before = sibs.detect {|c| c.name.to_s.downcase > name.to_s.downcase }
      if to_be_inserted_before
        move_to_left_of(to_be_inserted_before)
      elsif p.nil?
        if sibs.empty?
          # move_to_root adds the project in first (ie. left) position
          move_to_root
        else
          move_to_right_of(sibs.last) unless self == sibs.last
        end
      else
        # move_to_child_of adds the project in last (ie.right) position
        move_to_child_of(p)
      end
      Issue.update_versions_from_hierarchy_change(self)
      true
    else
      # Can not move to the given target
      false
    end
  end

  # Returns an array of the trackers used by the project and its active sub projects
  def rolled_up_trackers
    @rolled_up_trackers ||=
      Tracker.find(:all, :joins => :projects,
                         :select => "DISTINCT #{Tracker.table_name}.*",
                         :conditions => ["#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status = #{STATUS_ACTIVE}", lft, rgt],
                         :order => "#{Tracker.table_name}.position")
  end

  # Closes open and locked project versions that are completed
  def close_completed_versions
    Version.transaction do
      versions.find(:all, :conditions => {:status => %w(open locked)}).each do |version|
        if version.completed?
          version.update_attribute(:status, 'closed')
        end
      end
    end
  end

  # Returns a scope of the Versions on subprojects
  def rolled_up_versions
    @rolled_up_versions ||=
      Version.scoped(:include => :project,
                     :conditions => ["#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status = #{STATUS_ACTIVE}", lft, rgt])
  end

  # Returns a scope of the Versions used by the project
  def shared_versions
    if new_record?
      Version.scoped(:include => :project,
                     :conditions => "#{Project.table_name}.status = #{Project::STATUS_ACTIVE} AND #{Version.table_name}.sharing = 'system'")
    else
      @shared_versions ||= begin
        r = root? ? self : root
        Version.scoped(:include => :project,
                       :conditions => "#{Project.table_name}.id = #{id}" +
                                      " OR (#{Project.table_name}.status = #{Project::STATUS_ACTIVE} AND (" +
                                          " #{Version.table_name}.sharing = 'system'" +
                                          " OR (#{Project.table_name}.lft >= #{r.lft} AND #{Project.table_name}.rgt <= #{r.rgt} AND #{Version.table_name}.sharing = 'tree')" +
                                          " OR (#{Project.table_name}.lft < #{lft} AND #{Project.table_name}.rgt > #{rgt} AND #{Version.table_name}.sharing IN ('hierarchy', 'descendants'))" +
                                          " OR (#{Project.table_name}.lft > #{lft} AND #{Project.table_name}.rgt < #{rgt} AND #{Version.table_name}.sharing = 'hierarchy')" +
                                          "))")
      end
    end
  end

  # Returns a hash of project users grouped by role
  def users_by_role
    members.find(:all, :include => [:user, :roles]).inject({}) do |h, m|
      m.roles.each do |r|
        h[r] ||= []
        h[r] << m.user
      end
      h
    end
  end

  # Deletes all project's members
  def delete_all_members
    me, mr = Member.table_name, MemberRole.table_name
    connection.delete("DELETE FROM #{mr} WHERE #{mr}.member_id IN (SELECT #{me}.id FROM #{me} WHERE #{me}.project_id = #{id})")
    Member.delete_all(['project_id = ?', id])
  end

  # Users/groups issues can be assigned to
  def assignable_users
    assignable = Setting.issue_group_assignment? ? member_principals : members
    assignable.select {|m| m.roles.detect {|role| role.assignable?}}.collect {|m| m.principal}.sort
  end

  # Returns the mail adresses of users that should be always notified on project events
  def recipients
    notified_users.collect {|user| user.mail}
  end

  # Returns the users that should be notified on project events
  def notified_users
    # TODO: User part should be extracted to User#notify_about?
    members.select {|m| m.mail_notification? || m.user.mail_notification == 'all'}.collect {|m| m.user}
  end

  # Returns an array of all custom fields enabled for project issues
  # (explictly associated custom fields and custom fields enabled for all projects)
  def all_issue_custom_fields
    @all_issue_custom_fields ||= (IssueCustomField.for_all + issue_custom_fields).uniq.sort
  end

  # Returns an array of all custom fields enabled for project time entries
  # (explictly associated custom fields and custom fields enabled for all projects)
  def all_time_entry_custom_fields
    @all_time_entry_custom_fields ||= (TimeEntryCustomField.for_all + time_entry_custom_fields).uniq.sort
  end

  def project
    self
  end

  def <=>(project)
    name.downcase <=> project.name.downcase
  end

  def to_s
    name
  end

  # Returns a short description of the projects (first lines)
  def short_description(length = 255)

    ## The short description is used in lists, e.g. Latest projects,
    ## My projects etc.  It should be no more than a line or two with
    ## no text formatting.

    ## Original Redmine code: this truncates to the CR that is more
    ## than "length" characters from the start.
    # description.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if description

    ## That can leave too much text for us, and also we want to omit
    ## images and the like.  Truncate instead to the first CR that
    ## follows _any_ non-blank text, and to the next word break beyond
    ## "length" characters if the result is still longer than that.
    ##
    description.gsub(/![^\s]+!/, '').gsub(/^(\s*[^\n\r]*).*$/m, '\1').gsub(/^(.{#{length}}\b).*$/m, '\1 ...').strip if description
  end

  def css_classes
    s = 'project'
    s << ' root' if root?
    s << ' child' if child?
    s << (leaf? ? ' leaf' : ' parent')
    s
  end

  # The earliest start date of a project, based on it's issues and versions
  def start_date
    [
     issues.minimum('start_date'),
     shared_versions.collect(&:effective_date),
     shared_versions.collect(&:start_date)
    ].flatten.compact.min
  end

  # The latest due date of an issue or version
  def due_date
    [
     issues.maximum('due_date'),
     shared_versions.collect(&:effective_date),
     shared_versions.collect {|v| v.fixed_issues.maximum('due_date')}
    ].flatten.compact.max
  end

  def overdue?
    active? && !due_date.nil? && (due_date < Date.today)
  end

  # Returns the percent completed for this project, based on the
  # progress on it's versions.
  def completed_percent(options={:include_subprojects => false})
    if options.delete(:include_subprojects)
      total = self_and_descendants.collect(&:completed_percent).sum

      total / self_and_descendants.count
    else
      if versions.count > 0
        total = versions.collect(&:completed_pourcent).sum

        total / versions.count
      else
        100
      end
    end
  end

  # Return true if this project 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 allows_to?(action)
    if action.is_a? Hash
      allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
    else
      allowed_permissions.include? action
    end
  end

  def module_enabled?(module_name)
    module_name = module_name.to_s
    enabled_modules.detect {|m| m.name == module_name}
  end

  def enabled_module_names=(module_names)
    if module_names && module_names.is_a?(Array)
      module_names = module_names.collect(&:to_s).reject(&:blank?)
      self.enabled_modules = module_names.collect {|name| enabled_modules.detect {|mod| mod.name == name} || EnabledModule.new(:name => name)}
    else
      enabled_modules.clear
    end
  end

  # Returns an array of the enabled modules names
  def enabled_module_names
    enabled_modules.collect(&:name)
  end

  # Enable a specific module
  #
  # Examples:
  #   project.enable_module!(:issue_tracking)
  #   project.enable_module!("issue_tracking")
  def enable_module!(name)
    enabled_modules << EnabledModule.new(:name => name.to_s) unless module_enabled?(name)
  end

  # Disable a module if it exists
  #
  # Examples:
  #   project.disable_module!(:issue_tracking)
  #   project.disable_module!("issue_tracking")
  #   project.disable_module!(project.enabled_modules.first)
  def disable_module!(target)
    target = enabled_modules.detect{|mod| target.to_s == mod.name} unless enabled_modules.include?(target)
    target.destroy unless target.blank?
  end

  safe_attributes 'name',
    'description',
    'homepage',
    'is_public',
    'identifier',
    'custom_field_values',
    'custom_fields',
    'tracker_ids',
    'issue_custom_field_ids',
    'has_welcome_page'

  safe_attributes 'enabled_module_names',
    :if => lambda {|project, user| project.new_record? || user.allowed_to?(:select_project_modules, project) }

  # Returns an array of projects that are in this project's hierarchy
  #
  # Example: parents, children, siblings
  def hierarchy
    parents = project.self_and_ancestors || []
    descendants = project.descendants || []
    project_hierarchy = parents | descendants # Set union
  end

  # Returns an auto-generated project identifier based on the last identifier used
  def self.next_identifier
    p = Project.find(:first, :order => 'created_on DESC')
    p.nil? ? nil : p.identifier.to_s.succ
  end

  # Copies and saves the Project instance based on the +project+.
  # Duplicates the source project's:
  # * Wiki
  # * Versions
  # * Categories
  # * Issues
  # * Members
  # * Queries
  #
  # Accepts an +options+ argument to specify what to copy
  #
  # Examples:
  #   project.copy(1)                                    # => copies everything
  #   project.copy(1, :only => 'members')                # => copies members only
  #   project.copy(1, :only => ['members', 'versions'])  # => copies members and versions
  def copy(project, options={})
    project = project.is_a?(Project) ? project : Project.find(project)

    to_be_copied = %w(wiki versions issue_categories issues members queries boards)
    to_be_copied = to_be_copied & options[:only].to_a unless options[:only].nil?

    Project.transaction do
      if save
        reload
        to_be_copied.each do |name|
          send "copy_#{name}", project
        end
        Redmine::Hook.call_hook(:model_project_copy_before_save, :source_project => project, :destination_project => self)
        save
      end
    end
  end


  # Copies +project+ and returns the new instance.  This will not save
  # the copy
  def self.copy_from(project)
    begin
      project = project.is_a?(Project) ? project : Project.find(project)
      if project
        # clear unique attributes
        attributes = project.attributes.dup.except('id', 'name', 'identifier', 'status', 'parent_id', 'lft', 'rgt')
        copy = Project.new(attributes)
        copy.enabled_modules = project.enabled_modules
        copy.trackers = project.trackers
        copy.custom_values = project.custom_values.collect {|v| v.clone}
        copy.issue_custom_fields = project.issue_custom_fields
        return copy
      else
        return nil
      end
    rescue ActiveRecord::RecordNotFound
      return nil
    end
  end

  # Yields the given block for each project with its level in the tree
  def self.project_tree(projects, &block)
    ancestors = []
    projects.sort_by(&:lft).each do |project|
      while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
        ancestors.pop
      end
      yield project, ancestors.size
      ancestors << project
    end
  end

  private

  # Copies wiki from +project+
  def copy_wiki(project)
    # Check that the source project has a wiki first
    unless project.wiki.nil?
      self.wiki ||= Wiki.new
      wiki.attributes = project.wiki.attributes.dup.except("id", "project_id")
      wiki_pages_map = {}
      project.wiki.pages.each do |page|
        # Skip pages without content
        next if page.content.nil?
        new_wiki_content = WikiContent.new(page.content.attributes.dup.except("id", "page_id", "updated_on"))
        new_wiki_page = WikiPage.new(page.attributes.dup.except("id", "wiki_id", "created_on", "parent_id"))
        new_wiki_page.content = new_wiki_content
        wiki.pages << new_wiki_page
        wiki_pages_map[page.id] = new_wiki_page
      end
      wiki.save
      # Reproduce page hierarchy
      project.wiki.pages.each do |page|
        if page.parent_id && wiki_pages_map[page.id]
          wiki_pages_map[page.id].parent = wiki_pages_map[page.parent_id]
          wiki_pages_map[page.id].save
        end
      end
    end
  end

  # Copies versions from +project+
  def copy_versions(project)
    project.versions.each do |version|
      new_version = Version.new
      new_version.attributes = version.attributes.dup.except("id", "project_id", "created_on", "updated_on")
      self.versions << new_version
    end
  end

  # Copies issue categories from +project+
  def copy_issue_categories(project)
    project.issue_categories.each do |issue_category|
      new_issue_category = IssueCategory.new
      new_issue_category.attributes = issue_category.attributes.dup.except("id", "project_id")
      self.issue_categories << new_issue_category
    end
  end

  # Copies issues from +project+
  # Note: issues assigned to a closed version won't be copied due to validation rules
  def copy_issues(project)
    # Stores the source issue id as a key and the copied issues as the
    # value.  Used to map the two togeather for issue relations.
    issues_map = {}

    # Get issues sorted by root_id, lft so that parent issues
    # get copied before their children
    project.issues.find(:all, :order => 'root_id, lft').each do |issue|
      new_issue = Issue.new
      new_issue.copy_from(issue)
      new_issue.project = self
      # Reassign fixed_versions by name, since names are unique per
      # project and the versions for self are not yet saved
      if issue.fixed_version
        new_issue.fixed_version = self.versions.select {|v| v.name == issue.fixed_version.name}.first
      end
      # Reassign the category by name, since names are unique per
      # project and the categories for self are not yet saved
      if issue.category
        new_issue.category = self.issue_categories.select {|c| c.name == issue.category.name}.first
      end
      # Parent issue
      if issue.parent_id
        if copied_parent = issues_map[issue.parent_id]
          new_issue.parent_issue_id = copied_parent.id
        end
      end

      self.issues << new_issue
      if new_issue.new_record?
        logger.info "Project#copy_issues: issue ##{issue.id} could not be copied: #{new_issue.errors.full_messages}" if logger && logger.info
      else
        issues_map[issue.id] = new_issue unless new_issue.new_record?
      end
    end

    # Relations after in case issues related each other
    project.issues.each do |issue|
      new_issue = issues_map[issue.id]
      unless new_issue
        # Issue was not copied
        next
      end

      # Relations
      issue.relations_from.each do |source_relation|
        new_issue_relation = IssueRelation.new
        new_issue_relation.attributes = source_relation.attributes.dup.except("id", "issue_from_id", "issue_to_id")
        new_issue_relation.issue_to = issues_map[source_relation.issue_to_id]
        if new_issue_relation.issue_to.nil? && Setting.cross_project_issue_relations?
          new_issue_relation.issue_to = source_relation.issue_to
        end
        new_issue.relations_from << new_issue_relation
      end

      issue.relations_to.each do |source_relation|
        new_issue_relation = IssueRelation.new
        new_issue_relation.attributes = source_relation.attributes.dup.except("id", "issue_from_id", "issue_to_id")
        new_issue_relation.issue_from = issues_map[source_relation.issue_from_id]
        if new_issue_relation.issue_from.nil? && Setting.cross_project_issue_relations?
          new_issue_relation.issue_from = source_relation.issue_from
        end
        new_issue.relations_to << new_issue_relation
      end
    end
  end

  # Copies members from +project+
  def copy_members(project)
    # Copy users first, then groups to handle members with inherited and given roles
    members_to_copy = []
    members_to_copy += project.memberships.select {|m| m.principal.is_a?(User)}
    members_to_copy += project.memberships.select {|m| !m.principal.is_a?(User)}

    members_to_copy.each do |member|
      new_member = Member.new
      new_member.attributes = member.attributes.dup.except("id", "project_id", "created_on")
      # only copy non inherited roles
      # inherited roles will be added when copying the group membership
      role_ids = member.member_roles.reject(&:inherited?).collect(&:role_id)
      next if role_ids.empty?
      new_member.role_ids = role_ids
      new_member.project = self
      self.members << new_member
    end
  end

  # Copies queries from +project+
  def copy_queries(project)
    project.queries.each do |query|
      new_query = Query.new
      new_query.attributes = query.attributes.dup.except("id", "project_id", "sort_criteria")
      new_query.sort_criteria = query.sort_criteria if query.sort_criteria
      new_query.project = self
      new_query.user_id = query.user_id
      self.queries << new_query
    end
  end

  # Copies boards from +project+
  def copy_boards(project)
    project.boards.each do |board|
      new_board = Board.new
      new_board.attributes = board.attributes.dup.except("id", "project_id", "topics_count", "messages_count", "last_message_id")
      new_board.project = self
      self.boards << new_board
    end
  end

  def allowed_permissions
    @allowed_permissions ||= begin
      module_names = enabled_modules.all(:select => :name).collect {|m| m.name}
      Redmine::AccessControl.modules_permissions(module_names).collect {|p| p.name}
    end
  end

  def allowed_actions
    @actions_allowed ||= allowed_permissions.inject([]) { |actions, permission| actions += Redmine::AccessControl.allowed_actions(permission) }.flatten
  end

  # Returns all the active Systemwide and project specific activities
  def active_activities
    overridden_activity_ids = self.time_entry_activities.collect(&:parent_id)

    if overridden_activity_ids.empty?
      return TimeEntryActivity.shared.active
    else
      return system_activities_and_project_overrides
    end
  end

  # Returns all the Systemwide and project specific activities
  # (inactive and active)
  def all_activities
    overridden_activity_ids = self.time_entry_activities.collect(&:parent_id)

    if overridden_activity_ids.empty?
      return TimeEntryActivity.shared
    else
      return system_activities_and_project_overrides(true)
    end
  end

  # Returns the systemwide active activities merged with the project specific overrides
  def system_activities_and_project_overrides(include_inactive=false)
    if include_inactive
      return TimeEntryActivity.shared.
        find(:all,
             :conditions => ["id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)]) +
        self.time_entry_activities
    else
      return TimeEntryActivity.shared.active.
        find(:all,
             :conditions => ["id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)]) +
        self.time_entry_activities.active
    end
  end

  # Archives subprojects recursively
  def archive!
    children.each do |subproject|
      subproject.send :archive!
    end
    update_attribute :status, STATUS_ARCHIVED
  end
end