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Refactoring: Agora o sistema se comporta bem com objetos excluidos

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This commit is contained in:
Alinson S. Xavier
2008-03-15 07:44:46 -03:00
parent 8d02e0d4ce
commit 4c55ce7b45
16 changed files with 114 additions and 96 deletions
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4
app/controllers/wiki_controller.rb
View File

@@ -100,8 +100,8 @@ class WikiController < ApplicationController
end
def versions
@history_to = params[:to] || @wiki_page.versions.count
@history_from = params[:from] || @wiki_page.versions.count - 1
@history_to = params[:to] || @wiki_page.versions[-1].version
@history_from = params[:from] || (@wiki_page.versions.count > 1 ? @wiki_page.versions[-2].version : @history_to)
@offset = params[:offset] || 0
respond_to do |format|

9
app/models/attachment.rb
View File

@@ -18,10 +18,15 @@ require 'fileutils.rb'
class Attachment < ActiveRecord::Base
belongs_to :course
generate_validations
# Plugins
acts_as_paranoid
# Associacoes
belongs_to :course
# Validacao
generate_validations
# Atributo virtual file
def file=(new_file)
@tmp_file = new_file

14
app/models/course.rb
View File

@@ -16,10 +16,13 @@
class Course < ActiveRecord::Base
# Plugins
acts_as_paranoid
# Associacoes
has_many :attachments,
:order => "file_name",
:dependent => :destroy
:dependent => :destroy
has_many :events,
:order => "time asc",
@@ -27,8 +30,8 @@ class Course < ActiveRecord::Base
has_many :news,
:foreign_key => "receiver_id",
:order => "id desc",
:dependent => :destroy
:order => "id desc",
:dependent => :destroy
has_many :log_entries,
:order => "created_at desc",
@@ -37,10 +40,7 @@ class Course < ActiveRecord::Base
has_many :wiki_pages,
:order => "position",
:dependent => :destroy
# Plugins
acts_as_paranoid
# Validacao
generate_validations
validates_uniqueness_of :short_name

8
app/models/event.rb
View File

@@ -15,12 +15,16 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class Event < ActiveRecord::Base
# Plugins
acts_as_paranoid
generate_validations
# Associacoes
belongs_to :course
# Validacao
generate_validations
def Event.to_ical(courses)
courses = [courses] unless courses.kind_of?(Array)
cal = Icalendar::Calendar.new

7
app/models/log_entry.rb
View File

@@ -15,11 +15,14 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class LogEntry < ActiveRecord::Base
belongs_to :user
belongs_to :course
# Plugins
acts_as_paranoid
# Associacoes
belongs_to :course
belongs_to :user, :with_deleted => true
def reversible?() false end
def to_xml(options = {})

15
app/models/log_entry/attachment_log_entry.rb
View File

@@ -15,21 +15,18 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class AttachmentLogEntry < LogEntry
def attachment
Attachment.find_with_deleted(target_id)
end
belongs_to :attachment,
:foreign_key => "target_id",
:with_deleted => true
end
class AttachmentDeleteLogEntry < AttachmentLogEntry
def reversible?()
a = Attachment.find_with_deleted(target_id)
a.deleted_at != nil
attachment.deleted?
end
def undo!(current_user)
a = Attachment.find_with_deleted(target_id)
a.update_attribute(:deleted_at, nil)
AttachmentRestoreLogEntry.create!(:target_id => a.id, :user_id => current_user.id,
:course => a.course)
attachment.update_attribute(:deleted_at, nil)
AttachmentRestoreLogEntry.create!(:target_id => attachment.id, :user_id => current_user.id, :course => attachment.course)
end
end

15
app/models/log_entry/event_log_entry.rb
View File

@@ -15,21 +15,18 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class EventLogEntry < LogEntry
def event
Event.find_with_deleted(target_id)
end
belongs_to :event,
:foreign_key => "target_id",
:with_deleted => true
end
class EventDeleteLogEntry < EventLogEntry
def reversible?()
e = Event.find_with_deleted(target_id)
e.deleted_at != nil
event.deleted?
end
def undo!(current_user)
e = Event.find_with_deleted(target_id)
e.update_attribute(:deleted_at, nil)
EventRestoreLogEntry.create!(:target_id => e.id, :user_id => current_user.id,
:course_id => e.course_id)
event.update_attribute(:deleted_at, nil)
EventRestoreLogEntry.create!(:target_id => event.id, :user_id => current_user.id, :course => event.course)
end
end

15
app/models/log_entry/news_log_entry.rb
View File

@@ -15,21 +15,18 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class NewsLogEntry < LogEntry
def news
News.find_with_deleted(target_id)
end
belongs_to :news,
:foreign_key => "target_id",
:with_deleted => true
end
class NewsDeleteLogEntry < NewsLogEntry
def reversible?()
n = News.find_with_deleted(target_id)
n.deleted_at != nil
news.deleted?
end
def undo!(current_user)
n = News.find_with_deleted(target_id)
n.update_attribute(:deleted_at, nil)
NewsRestoreLogEntry.create!(:target_id => n.id, :user_id => current_user.id,
:course => n.course)
news.update_attribute(:deleted_at, nil)
NewsRestoreLogEntry.create!(:target_id => news.id, :user_id => current_user.id, :course => news.course)
end
end

20
app/models/log_entry/wiki_log_entry.rb
View File

@@ -15,11 +15,9 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class WikiLogEntry < LogEntry
def wiki_page
w = WikiPage.find_with_deleted(target_id)
w.revert_to(version)
return w
end
belongs_to :wiki_page,
:foreign_key => "target_id",
:with_deleted => true
end
class WikiEditLogEntry < WikiLogEntry
@@ -28,16 +26,12 @@ end
class WikiDeleteLogEntry < WikiLogEntry
def reversible?()
w = WikiPage.find_with_deleted(target_id)
w.deleted_at != nil
wiki_page.deleted?
end
def undo!(current_user)
w = WikiPage.find_with_deleted(target_id)
w.update_attribute(:deleted_at, nil)
w.position = w.course.wiki_pages.maximum(:position) + 1
w.save!
WikiRestoreLogEntry.create!(:target_id => w.id, :user_id => current_user.id,
:course => w.course)
wiki_page.update_attribute(:deleted_at, nil)
wiki_page.update_attribute(:position, wiki_page.course.wiki_pages.maximum(:position) + 1)
WikiRestoreLogEntry.create!(:target_id => wiki_page.id, :user_id => current_user.id, :course => wiki_page.course)
end
end

29
app/models/message.rb
View File

@@ -15,28 +15,19 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class Message < ActiveRecord::Base
# Plugins
acts_as_paranoid
belongs_to :user, :foreign_key => "sender_id"
# Associacoes
belongs_to :user,
:foreign_key => "sender_id",
:with_deleted => true
end
class PrivateMessage < Message
end
class News < Message
validates_presence_of :title
belongs_to :course, :foreign_key => "receiver_id"
end
class ShoutboxMessage < Message
end
class CourseShoutboxMessage < ShoutboxMessage
end
class UserShoutboxMessage < ShoutboxMessage
belongs_to :course,
:foreign_key => "receiver_id"
end

4
app/models/user.rb
View File

@@ -18,10 +18,13 @@ require 'digest/sha1'
class User < ActiveRecord::Base
# Plugins
acts_as_paranoid
# Associacoes
has_and_belongs_to_many :courses, :order => 'full_name'
# Validacao
validates_length_of :login, :within => 3..40
validates_length_of :name, :within => 3..40
validates_length_of :display_name, :within => 3..40
@@ -35,6 +38,7 @@ class User < ActiveRecord::Base
validates_format_of :email,
:with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
# Seguranca
attr_protected :id, :salt
attr_accessor :password, :password_confirmation

32
app/models/wiki_page.rb
View File

@@ -19,25 +19,29 @@ require 'tempfile'
class WikiPage < ActiveRecord::Base
belongs_to :course
belongs_to :user
generate_validations
validates_uniqueness_of :title, :scope => :course_id
validates_format_of :title, :with => /^[^0-9]/
# Plugins
acts_as_paranoid
acts_as_list :scope => 'course_id = #{course_id}'
acts_as_versioned :if_changed => [ :content, :description, :title ]
self.non_versioned_fields << 'position'
def validate
begin
to_html
rescue
errors.add("content", "possui erro de sintaxe")
end
end
# Associacoes
belongs_to :course
belongs_to :user, :with_deleted => true
# Valicacao
generate_validations
validates_uniqueness_of :title, :scope => :course_id
validates_format_of :title, :with => /^[^0-9]/
def validate
begin
to_html
rescue
errors.add("content", "possui erro de sintaxe")
end
end
def to_html(text = self.content)
return BlueCloth.new(text).to_html

20
app/views/log/_wiki_log_entry.html.haml
View File

@@ -1,13 +1,21 @@
= "Página " + link_to(h(entry.wiki_page.versions.last.title), course_wiki_url(entry.course, entry.wiki_page.id, :version => entry.wiki_page.version))
= "Página " + link_to(h(entry.wiki_page.title), course_wiki_url(entry.course, entry.wiki_page.id, :version => entry.version))
= "criada " if entry.kind_of?(WikiCreateLogEntry)
= "editada " if entry.kind_of?(WikiEditLogEntry)
= "excluída " if entry.kind_of?(WikiDeleteLogEntry)
= "restaurada " if entry.kind_of?(WikiRestoreLogEntry)
- current_version = WikiPage.find_version(entry.wiki_page.id, entry.version)
- previous_version = entry.wiki_page.previous_version(entry.version)
- if entry.kind_of?(WikiEditLogEntry)
- if entry.wiki_page.description and !entry.wiki_page.description.empty?
= "(<i>#{h(entry.wiki_page.description)}</i>)"
= "(" + link_to("diff", diff_course_wiki_url(entry.course, entry.wiki_page.id, :from => entry.wiki_page.version - 1, :to => entry.wiki_page.version)) + ")"
= "(" + link_to("edit", edit_course_wiki_url(entry.course, entry.wiki_page.id, :description => "Revertendo para versão #{entry.wiki_page.version}", :version => entry.wiki_page.version)) + ")"
= "(" + link_to("undo", edit_course_wiki_url(entry.course, entry.wiki_page.id, :description => "Revertendo para versão #{entry.wiki_page.version-1}", :version => entry.wiki_page.version - 1)) + ")"
- if current_version.description and !current_version.description.empty?
= "(<i>#{h(current_version.description)}</i>)"
- unless previous_version.nil?
= "(" + link_to("diff", diff_course_wiki_url(entry.course, entry.wiki_page.id, :from => previous_version.version, :to => entry.version)) + ")"
= "(" + link_to("edit", edit_course_wiki_url(entry.course, entry.wiki_page.id, :description => "Revertendo para versão #{entry.version}", :version => entry.version)) + ")"
- unless previous_version.nil?
= "(" + link_to("undo", edit_course_wiki_url(entry.course, entry.wiki_page.id, :description => "Revertendo para versão #{previous_version.version}", :version => previous_version.version)) + ")"

2
app/views/wiki/versions.html.haml
View File

@@ -25,7 +25,7 @@
%td.narrow
%input{:type => "radio", :name => "to", :value => entry.version, :onclick => %"history_to(#{entry.version})"}
%td= link_to(tz(entry.updated_at).strftime("%d/%m/%y&nbsp;%H:%M:%S"), course_wiki_url(@course, @wiki_page, :version => entry.version))
%td= link_to truncate(h(User.find(entry.user_id).display_name), 20), user_path(User.find(entry.user_id))
%td= link_to truncate(h(User.find_with_deleted(entry.user_id).display_name), 20), user_path(User.find_with_deleted(entry.user_id))
%td
= entry.description
- if (entry.version > @wiki_page.versions.minimum(:version))

10
test/unit/user_test.rb
View File

@@ -234,4 +234,14 @@ class UserTest < Test::Unit::TestCase
assert_not_equal "I-want-to-set-my-salt", u.salt
assert_equal "verybadbob", u.login
end
def test_paranoid
assert User.paranoid?
u = users(:bob)
u.destroy
assert_raises(ActiveRecord::RecordNotFound) { User.find(u.id) }
assert_nothing_raised { User.find_with_deleted(u.id) }
end
end

6
vendor/gems/acts_as_versioned-0.2.3/lib/acts_as_versioned.rb vendored
View File

@@ -279,6 +279,10 @@ module ActiveRecord #:nodoc:
end
end
def previous_version(current_version = self.version)
self.versions.find(:first, :conditions => [ 'version < ?', current_version ], :order => 'version desc')
end
protected
# sets the new version before saving, unless you're using optimistic locking. In that case, let it take care of the version.
def set_new_version
@@ -394,4 +398,4 @@ module ActiveRecord #:nodoc:
end
end
ActiveRecord::Base.class_eval { include ActiveRecord::Acts::Versioned }
ActiveRecord::Base.class_eval { include ActiveRecord::Acts::Versioned }