summaryrefslogtreecommitdiffstats
path: root/app/models/project.rb
blob: d68958e27d8922fb4ac9572f24a173d7dab5d9f3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
# redMine - project management software
# Copyright (C) 2006  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
  # 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 => :delete_all, :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'
  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, :enabled_module_names
  
  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, :destroy_children

  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 { { :conditions => Project.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)
    find(:all, :limit => count, :conditions => visible_by(user), :order => "created_on DESC")	
  end	

  # Returns a SQL :conditions string used to find all active projects for the specified user.
  #
  # Examples:
  #     Projects.visible_by(admin)        => "projects.status = 1"
  #     Projects.visible_by(normal_user)  => "projects.status = 1 AND projects.is_public = 1"
  def self.visible_by(user=nil)
    user ||= User.current
    if user && user.admin?
      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE}"
    elsif user && user.memberships.any?
      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE} AND (#{Project.table_name}.is_public = #{connection.quoted_true} or #{Project.table_name}.id IN (#{user.memberships.collect{|m| m.project_id}.join(',')}))"
    else
      return "#{Project.table_name}.status=#{Project::STATUS_ACTIVE} AND #{Project.table_name}.is_public = #{connection.quoted_true}"
    end
  end
  
  def self.allowed_to_condition(user, permission, options={})
    statements = []
    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?
      # no restriction
    else
      statements << "1=0"
      if user.logged?
        if Role.non_member.allowed_to?(permission) && !options[:member]
          statements << "#{Project.table_name}.is_public = #{connection.quoted_true}"
        end
        allowed_project_ids = user.memberships.select {|m| m.roles.detect {|role| role.allowed_to?(permission)}}.collect {|m| m.project_id}
        statements << "#{Project.table_name}.id IN (#{allowed_project_ids.join(',')})" if allowed_project_ids.any?
      else
        if Role.anonymous.allowed_to?(permission) && !options[:member]
          # anonymous user allowed on public project
          statements << "#{Project.table_name}.is_public = #{connection.quoted_true}"
        end 
      end
    end
    statements.empty? ? base_statement : "((#{base_statement}) AND (#{statements.join(' OR ')}))"
  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 : 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, :include => :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
    @shared_versions ||= 
      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 >= #{root.lft} AND #{Project.table_name}.rgt <= #{root.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

  # 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 issues can be assigned to
  def assignable_users
    members.select {|m| m.roles.detect {|role| role.assignable?}}.collect {|m| m.user}.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
  
  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')
    s
  end

  # The earliest start date of a project, based on it's issues and versions
  def start_date
    if module_enabled?(:issue_tracking)
      [
       issues.minimum('start_date'),
       shared_versions.collect(&:effective_date),
       shared_versions.collect {|v| v.fixed_issues.minimum('start_date')}
      ].flatten.compact.min
    end
  end

  # The latest due date of an issue or version
  def due_date
    if module_enabled?(:issue_tracking)
      [
       issues.maximum('due_date'),
       shared_versions.collect(&:effective_date),
       shared_versions.collect {|v| v.fixed_issues.maximum('due_date')}
      ].flatten.compact.max
    end
  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?)
      # remove disabled modules
      enabled_modules.each {|mod| mod.destroy unless module_names.include?(mod.name)}
      # add new modules
      module_names.reject {|name| module_enabled?(name)}.each {|name| enabled_modules << 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

  # 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
  
  # Destroys children before destroying self
  def destroy_children
    children.each do |child|
      child.destroy
    end
  end
  
  # 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+
  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
      issues_map[issue.id] = new_issue
    end

    # Relations after in case issues related each other
    project.issues.each do |issue|
      new_issue = issues_map[issue.id]
      
      # 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)
    project.memberships.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
      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