小改怡情,大改伤身,强改灰飞烟灭

This commit is contained in:
fanqiang 2013-11-22 11:19:08 +08:00
parent 16f70437d1
commit 4a4d1159f8
2 changed files with 751 additions and 25 deletions

View File

@ -1,12 +1,29 @@
class ForumsController < ApplicationController
# GET /forums
# GET /forums.json
def index
@forums = Forum.all
# @forums = Forum.all
respond_to do |format|
format.html # index.html.erb
format.json { render json: @forums }
format.html {
scope = Forum
unless params[:closed]
scope = scope.active
end
@forums = scope.visible.order('lft').all
}
format.api {
@offset, @limit = api_offset_and_limit
@project_count = Forum.visible.count
@projects = Forum.visible.offset(@offset).limit(@limit).order('lft').all
}
format.atom {
projects = Forum.visible.order('created_on DESC').limit(Setting.feeds_limit.to_i).all
render_feed(projects, :title => "#{Setting.app_title}: #{l(:label_project_latest)}")
}
end
end
@ -15,9 +32,30 @@ class ForumsController < ApplicationController
def show
@forum = Forum.find(params[:id])
# # try to redirect to the requested menu item
# if params[:jump] && redirect_to_project_menu_item(@project, params[:jump])
# return
# end
@users_by_role = @forum.users_by_role
# @subprojects = @project.children.visible.all
# @news = @project.news.limit(5).includes(:author, :project).reorder("#{News.table_name}.created_on DESC").all
# @trackers = @project.rolled_up_trackers
# cond = @project.project_condition(Setting.display_subprojects_issues?)
# @open_issues_by_tracker = Issue.visible.open.where(cond).count(:group => :tracker)
# @total_issues_by_tracker = Issue.visible.where(cond).count(:group => :tracker)
# if User.current.allowed_to?(:view_time_entries, @project)
# @total_hours = TimeEntry.visible.sum(:hours, :include => :project, :conditions => cond).to_f
# end
@key = User.current.rss_key
respond_to do |format|
format.html # show.html.erb
format.json { render json: @forum }
format.html
format.api
end
end
@ -26,6 +64,11 @@ class ForumsController < ApplicationController
def new
@forum = Forum.new
# @issue_custom_fields = IssueCustomField.sorted.all
# @trackers = Tracker.sorted.all
# @project = Project.new
@forum.safe_attributes = params[:forum]
respond_to do |format|
format.html # new.html.erb
format.json { render json: @forum }
@ -40,15 +83,37 @@ class ForumsController < ApplicationController
# POST /forums
# POST /forums.json
def create
@forum = Forum.new(params[:forum])
# @forum = Forum.new(params[:forum])
respond_to do |format|
if @forum.save
format.html { redirect_to @forum, notice: 'Forum was successfully created.' }
format.json { render json: @forum, status: :created, location: @forum }
else
format.html { render action: "new" }
format.json { render json: @forum.errors, status: :unprocessable_entity }
# @issue_custom_fields = IssueCustomField.sorted.all
# @trackers = Tracker.sorted.all
@forum = Forum.new
@project.safe_attributes = params[:project]
if @forum.save
# @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
# Add current user as a project member if he is not admin
unless User.current.admin?
r = Role.givable.find_by_id(Setting.new_project_user_role_id.to_i) || Role.givable.first
m = Member.new(:user => User.current, :roles => [r])
@forum.members << m
end
respond_to do |format|
format.html {
flash[:notice] = l(:notice_successful_create)
# if params[:continue]
# attrs = {:parent_id => @forum.parent_id}.reject {|k,v| v.nil?}
# redirect_to new_project_path(attrs)
# else
redirect_to settings_project_path(@forum)
# end
}
format.api { render :action => 'show', :status => :created, :location => url_for(:controller => 'forums', :action => 'show', :id => @forum.id) }
end
else
respond_to do |format|
format.html { render :action => 'new' }
format.api { render_validation_errors(@forum) }
end
end
end
@ -58,13 +123,23 @@ class ForumsController < ApplicationController
def update
@forum = Forum.find(params[:id])
respond_to do |format|
if @forum.update_attributes(params[:forum])
format.html { redirect_to @forum, notice: 'Forum was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: "edit" }
format.json { render json: @forum.errors, status: :unprocessable_entity }
@forum.safe_attributes = params[:project]
if @forum.save
# @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
respond_to do |format|
format.html {
flash[:notice] = l(:notice_successful_update)
redirect_to settings_project_path(@forum)
}
format.api { render_api_ok }
end
else
respond_to do |format|
format.html {
settings
render :action => 'settings'
}
format.api { render_validation_errors(@forum) }
end
end
end
@ -73,11 +148,17 @@ class ForumsController < ApplicationController
# DELETE /forums/1.json
def destroy
@forum = Forum.find(params[:id])
@forum.destroy
respond_to do |format|
format.html { redirect_to forums_url }
format.json { head :no_content }
# @forum.destroy
@project_to_destroy = @forum
if api_request? || params[:confirm]
@project_to_destroy.destroy
respond_to do |format|
format.html { redirect_to admin_projects_path }
format.api { render_api_ok }
end
end
# hide project in layout
@project = nil
end
end

View File

@ -1,3 +1,648 @@
class Forum < ActiveRecord::Base
# attr_accessible :title, :body
include Redmine::SafeAttributes
# Project statuses
STATUS_ACTIVE = 1
STATUS_CLOSED = 5
STATUS_ARCHIVED = 9
# Maximum length for project identifiers
IDENTIFIER_MAX_LENGTH = 100
# Specific overidden Activities
has_many :members, :include => [:principal, :roles], :conditions => "#{Principal.table_name}.type='User' AND #{Principal.table_name}.status=#{Principal::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=#{Principal::STATUS_ACTIVE})"
has_many :users, :through => :members
has_many :principals, :through => :member_principals, :source => :principal
has_many :enabled_modules, :dependent => :delete_all
has_many :boards, :dependent => :destroy, :order => "position ASC"
# 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 => /\A(?!\d+$)[a-z0-9\-_]*\z/, :if => Proc.new { |p| p.identifier_changed? }
# reserved words
validates_exclusion_of :identifier, :in => %w( new )
# after_save :update_position_under_parent, :if => Proc.new {|project| project.name_changed?}
# after_save :update_inherited_members, :if => Proc.new {|project| project.inherit_members_changed?}
before_destroy :delete_all_members
# TODO: 可能要加表 这部分用于改变项目的模块
scope :has_module, lambda {|mod|
where("#{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name=?)", mod.to_s)
}
scope :active, lambda { where(:status => STATUS_ACTIVE) }
scope :status, lambda {|arg| where(arg.blank? ? nil : {:status => arg.to_i}) }
scope :all_public, lambda { where(:is_public => true) }
scope :visible, lambda {|*args| where(Project.visible_condition(args.shift || User.current, *args)) }
scope :allowed_to, lambda {|*args|
user = User.current
permission = nil
if args.first.is_a?(Symbol)
permission = args.shift
else
user = args.shift
permission = args.shift
end
where(Project.allowed_to_condition(user, permission, *args))
}
scope :like, lambda {|arg|
if arg.blank?
where(nil)
else
pattern = "%#{arg.to_s.strip.downcase}%"
where("LOWER(identifier) LIKE :p OR LOWER(name) LIKE :p", :p => pattern)
end
}
def initialize(attributes=nil, *args)
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
end
def identifier=(identifier)
super unless identifier_frozen?
end
def identifier_frozen?
errors[:identifier].blank? && !(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).limit(count).order("created_on DESC").all
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
# 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={})
perm = Redmine::AccessControl.permission(permission)
base_statement = (perm && perm.read? ? "#{Project.table_name}.status <> #{Project::STATUS_ARCHIVED}" : "#{Project.table_name}.status = #{Project::STATUS_ACTIVE}")
if perm && perm.project_module
# 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
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) && projects.any?
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
# 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 self.find_by_param(*args)
self.find(*args)
end
alias :base_reload :reload
def reload(*args)
@shared_versions = nil
@rolled_up_versions = nil
@rolled_up_trackers = nil
@all_issue_custom_fields = nil
@all_time_entry_custom_fields = nil
@to_param = nil
@allowed_parents = nil
@allowed_permissions = nil
@actions_allowed = nil
@start_date = nil
@due_date = nil
base_reload(*args)
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.
includes(:project).
where("#{Project.table_name}.lft < ? OR #{Project.table_name}.rgt > ?", lft, rgt).
where("#{Issue.table_name}.fixed_version_id IN (?)", v_ids).
exists?
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
def close
self_and_descendants.status(STATUS_ACTIVE).update_all :status => STATUS_CLOSED
end
def reopen
self_and_descendants.status(STATUS_CLOSED).update_all :status => STATUS_ACTIVE
end
# Recalculates all lft and rgt values based on project names
# Unlike Project.rebuild!, these values are recalculated even if the tree "looks" valid
# Used in BuildProjectsTree migration
def self.rebuild_tree!
transaction do
update_all "lft = NULL, rgt = NULL"
rebuild!(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.
joins(:projects).
joins("JOIN #{EnabledModule.table_name} ON #{EnabledModule.table_name}.project_id = #{Project.table_name}.id AND #{EnabledModule.table_name}.name = 'issue_tracking'").
select("DISTINCT #{Tracker.table_name}.*").
where("#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status <> #{STATUS_ARCHIVED}", lft, rgt).
sorted.
all
end
# Returns a hash of project users grouped by role
def users_by_role
members.includes(:user, :roles).all.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.principal.present? && (m.mail_notification? || m.principal.mail_notification == 'all')}.collect {|m| m.principal}
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)
description.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if description
end
def css_classes
s = 'project'
s << ' root' if root?
s << ' child' if child?
s << (leaf? ? ' leaf' : ' parent')
unless active?
if archived?
s << ' archived'
else
s << ' closed'
end
end
s
end
# The earliest start date of a project, based on it's issues and versions
def start_date
@start_date ||= [
issues.minimum('start_date'),
shared_versions.minimum('effective_date'),
Issue.fixed_version(shared_versions).minimum('start_date')
].compact.min
end
# The latest due date of an issue or version
def due_date
@due_date ||= [
issues.maximum('due_date'),
shared_versions.maximum('effective_date'),
Issue.fixed_version(shared_versions).maximum('due_date')
].compact.max
end
def overdue?
active? && !due_date.nil? && (due_date < Date.today)
end
# Return true if this project allows 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 archived?
# No action allowed on archived projects
return false
end
unless active? || Redmine::AccessControl.read_action?(action)
# No write action allowed on closed projects
return false
end
# No action allowed on disabled modules
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'
safe_attributes 'enabled_module_names',
:if => lambda {|project, user| project.new_record? || user.allowed_to?(:select_project_modules, project) }
safe_attributes 'inherit_members',
:if => lambda {|project, user| project.parent.nil? || project.parent.visible?(user)}
# Returns an auto-generated project identifier based on the last identifier used
def self.next_identifier
p = Project.order('id DESC').first
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
# Returns a new unsaved Project instance with attributes copied from +project+
def self.copy_from(project)
project = project.is_a?(Project) ? project : Project.find(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
copy
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 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 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.
where("id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)).all +
self.time_entry_activities
else
return TimeEntryActivity.shared.active.
where("id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)).all +
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
def update_position_under_parent
set_or_update_position_under(parent)
end
# Inserts/moves the project so that target's children or root projects stay alphabetically sorted
def set_or_update_position_under(target_parent)
parent_was = parent
sibs = (target_parent.nil? ? self.class.roots : target_parent.children)
to_be_inserted_before = sibs.sort_by {|c| c.name.to_s.downcase}.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 target_parent.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(target_parent)
end
if parent_was != target_parent
after_parent_changed(parent_was)
end
end
end