Multiplos semestres

app/controllers/attachments_controller.rb

@@ -97,7 +97,7 @@ class AttachmentsController < ApplicationController
 
 	protected
 	def find_attachment
-		params[:course_id] = Course.find_by_short_name(params[:course_id]).id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
+		params[:course_id] = Course.find(:first, :conditions => ['short_name = ?', params[:course_id]], :order => 'period desc').id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
 		@course = Course.find(params[:course_id])
 		@attachment = params[:id] ? @course.attachments.find(params[:id]) : Attachment.new
 	end

app/controllers/courses_controller.rb

@@ -22,9 +22,14 @@ class CoursesController < ApplicationController
 	#after_filter :cache_sweep, :only => [ :create, :update, :destroy ]
 
 	def index
-		@courses = Course.find(:all,
-			:order => 'period asc, full_name asc',
-			:conditions => (logged_in? and !@current_user.courses.empty? ? [ 'id not in (?)', @current_user.courses] : ''))
+		params[:period] = nil if params[:period] == App.current_period 
+		@period = params[:period] || App.current_period
+
+		conditions = []
+		conditions.add_condition!(['period = ?', @period])
+		conditions.add_condition!(['id not in (?)', @current_user.courses]) if logged_in? and !@current_user.courses.empty?
+		@courses = Course.find(:all, :order => 'grade asc, full_name asc', :conditions => conditions)
+
 
 		respond_to do |format|
 			format.html
@@ -98,7 +103,7 @@ class CoursesController < ApplicationController
 
 	protected
 	def find_course
-		params[:id] = Course.find_by_short_name(params[:id]).id if params[:id] and !params[:id].is_numeric? and !Course.find_by_short_name(params[:id]).nil?
+		params[:id] = Course.find(:first, :conditions => ['short_name = ?', params[:id]], :order => 'period desc').id if !params[:id].is_numeric? and !Course.find_by_short_name(params[:id]).nil?
 		@course = params[:id] ? Course.find(params[:id]) : Course.new(params[:course])
 	end
 

app/controllers/events_controller.rb

@@ -113,7 +113,7 @@ class EventsController < ApplicationController
 
 	protected
 	def find_event
-		params[:course_id] = Course.find_by_short_name(params[:course_id]).id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
+		params[:course_id] = Course.find(:first, :conditions => ['short_name = ?', params[:course_id]], :order => 'period desc').id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
 		@course = Course.find(params[:course_id])
 		@event = params[:id] ? @course.events.find(params[:id]) : Event.new(params[:event])
 	end

app/controllers/log_controller.rb

@@ -44,7 +44,7 @@ class LogController < ApplicationController
 	protected
 	def find_course
 		unless params[:course_id].nil?
-			params[:course_id] = Course.find_by_short_name(params[:course_id]).id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
+			params[:course_id] = Course.find(:first, :conditions => ['short_name = ?', params[:course_id]], :order => 'period desc').id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
 			@course = Course.find(params[:course_id])
 		end
 	end

app/controllers/news_controller.rb

@@ -105,7 +105,7 @@ class NewsController < ApplicationController
 
 	protected
 	def find_new
-		params[:course_id] = Course.find_by_short_name(params[:course_id]).id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
+		params[:course_id] = Course.find(:first, :conditions => ['short_name = ?', params[:course_id]], :order => 'period desc').id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
 		@course = Course.find(params[:course_id])
 
 		@news = params[:id] ? @course.news.find(params[:id]) : News.new(params[:news])

app/controllers/wiki_controller.rb

@@ -159,7 +159,7 @@ class WikiController < ApplicationController
 
 	protected
 	def find_wiki
-		params[:course_id] = Course.find_by_short_name(params[:course_id]).id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
+		params[:course_id] = Course.find(:first, :conditions => ['short_name = ?', params[:course_id]], :order => 'period desc').id if !params[:course_id].is_numeric? and !Course.find_by_short_name(params[:course_id]).nil?
 		@course = Course.find(params[:course_id])
 
 		params[:id] = @course.wiki_pages.find_by_title(params[:id]).id if params[:id] and !params[:id].is_numeric? and !@course.wiki_pages.find_by_title(params[:id]).nil?

app/models/course.rb

@@ -43,9 +43,12 @@ class Course < ActiveRecord::Base
 	
 	# Validacao
 	generate_validations
-	validates_uniqueness_of :short_name
 	validates_format_of :short_name, :with => /^[^0-9]/
 
+	def related_courses
+		Course.find(:all, :conditions => [ 'short_name = ?', self.short_name], :limit => 4, :order => 'period desc')
+	end
+	
 	def after_create
 		App.inital_wiki_pages.each do |page_title|
 			wiki_page = WikiPage.new(:title => page_title, :version => 1, :content => App.initial_wiki_page_content)
@@ -54,6 +57,7 @@ class Course < ActiveRecord::Base
 	end
 
 	def to_param
-		self.short_name
+		return self.short_name if self.period == App.current_period
+		return self.id
 	end
 end

app/models/user.rb

@@ -22,7 +22,7 @@ class User < ActiveRecord::Base
 	acts_as_paranoid
 
 	# Associacoes
-	has_and_belongs_to_many :courses, :order => 'full_name'
+	has_and_belongs_to_many :courses, :order => 'full_name', :conditions => "period = #{App.current_period}"
 
 	# Validacao
 	validates_length_of       :login, :within => 3..40

app/views/courses/_form.html.haml

@@ -14,7 +14,11 @@
   %dd= text_field 'course', 'code'
 
   %dt
-    %label{:for => "course_period"} Semestre
+    %label{:for => "course_grade"} Semestre
+  %dd= text_field 'course', 'grade'
+
+  %dt
+    %label{:for => "course_period"} Data
   %dd= text_field 'course', 'period'
 
   %dt

app/views/courses/index.html.haml

@@ -2,11 +2,12 @@
   = action_icon('add', 'Cadastrar nova disciplina', new_course_url) if admin?
 
 %h4.title= App.title
-%h1.title Disciplinas
+%h1.title= "Disciplinas #{@period}"
 
 .box
   %ul
     - if logged_in?
+      - if params[:period].nil?
         %h3 Disciplinas Matriculadas
         - if @current_user.courses.empty?
           %li.no_itens Nenhuma disciplina matriculada
@@ -17,14 +18,19 @@
             = link_to h(course.full_name), course_url(course)
 
     -# cache(courses_path) do 
-    - old_period = 0
+    - old_grade = 0
     - for course in @courses
-      - if course.period != old_period
-        %h3= (course.period == 99 ? "Optativas" : "Semestre #{course.period}")
-        - old_period = course.period
+      - if course.grade != old_grade
+        %h3= (course.grade == 99 ? "Optativas" : "Semestre #{course.grade}")
+        - old_grade = course.grade
 
       %li{highlight(course.id)}
+        - if course.period == App.current_period
           .right
             = action_icon('add', 'Matricular-se', enroll_course_url(course))
         = link_to h(course.full_name), course_url(course)
 
+    %h3
+      Outros Semestres
+    %li= link_to "2008.2", :period => '2008.2'
+    %li= link_to "2008.1", :period => '2008.1'

app/views/widgets/menu_disciplina.html.erb

@@ -8,3 +8,14 @@
 			<li><%= link_to "Mudanças recentes", course_log_url(@course) %></li>
 		</ul>
 	</div>
+
+  <% if @course.related_courses.length > 1 %>
+	<div class="menu">
+		<h1>Semestres</h1>
+		<ul>
+      <% for c in @course.related_courses %>
+        <li><%= (c == @course) ? c.period : link_to(c.period, course_url(c)) %></li>
+      <% end %>
+		</ul>
+	</div>
+  <% end %>

config/application.rb

@@ -6,6 +6,8 @@ App.webmaster_email = "webmaster@wikiufc.gelsol.org"
 App.default_host = "wikiufc.gelsol.org"
 App.base_path = ""
 
+App.current_period = "2008.1"
+
 # Limites
 App.max_upload_file_size = 5.megabytes
 

config/initializers/nasty_hacks.rb

@@ -8,3 +8,19 @@ class String
 		Float self rescue false
 	end
 end
+
+class Array
+  def add_condition! (condition, conjunction = 'AND')
+    if String === condition
+      add_condition!([condition])
+    elsif Hash === condition
+      add_condition!([condition.keys.map { |attr| "#{attr}=?" }.join(' AND ')] + condition.values)
+    elsif Array === condition
+      self[0] = "(#{self[0]}) #{conjunction} (#{condition.shift})" unless empty?
+      (self << condition).flatten!
+    else
+      raise "don't know how to handle this condition type"
+    end
+    self
+  end
+end

db/migrate/036_semestres.rb

@@ -0,0 +1,19 @@
+class Semestres < ActiveRecord::Migration
+	def self.up
+		rename_column :courses, :period, :grade
+		add_column :courses, :period, :string
+		Course.find(:all).each do |c|
+			c.update_attribute(:period, "2008.1")
+		end
+
+		remove_index :courses, :short_name
+		add_index :courses, :short_name, :unique => false
+	end
+
+	def self.down
+		remove_column :courses, :period
+		rename_column :courses, :grade, :period
+		remove_index :courses, :short_name
+		add_index :courses, :short_name, :unique => true
+	end
+end

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 35) do
+ActiveRecord::Schema.define(:version => 36) do
 
   create_table "attachments", :force => true do |t|
     t.string   "file_name",     :null => false
@@ -19,6 +19,7 @@ ActiveRecord::Schema.define(:version => 35) do
     t.integer  "size"
     t.integer  "course_id"
     t.datetime "deleted_at"
+    t.string   "path"
   end
 
   create_table "courses", :force => true do |t|
@@ -26,11 +27,12 @@ ActiveRecord::Schema.define(:version => 35) do
     t.string   "full_name",                        :null => false
     t.text     "description"
     t.string   "code",        :default => "CK000", :null => false
-    t.integer  "period",      :default => 1,       :null => false
     t.datetime "deleted_at"
+    t.integer  "grade",       :default => 1
+    t.string   "period"
   end
 
-  add_index "courses", ["short_name"], :name => "index_courses_on_short_name", :unique => true
+  add_index "courses", ["short_name"], :name => "index_courses_on_short_name"
 
   create_table "courses_users", :id => false, :force => true do |t|
     t.integer "user_id"