Initial import

app/controllers/attachments_controller.rb

@@ -0,0 +1,105 @@
+# Engenharia de Software 2007.1
+# Copyright (C) 2007, Adriano, Alinson, Andre, Rafael e Bustamante
+# 
+# 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.
+
+class AttachmentsController < ApplicationController
+
+	#verify :method => :post, :only => [ :destroy, :create, :update ],
+	#	:redirect_to => { :controller => 'courses', :action => :show }
+
+	before_filter :find_attachment, :except => [ :undelete ]
+	after_filter :cache_sweep, :only => [ :create, :update, :destroy ]
+	
+	def show
+	end
+
+	def new
+	end
+
+	def create
+		@attachment.course_id = @course.id
+		@attachment.description = params[:attachment][:description]
+		unless params[:attachment][:file].kind_of?(String)
+			@attachment.file = params[:attachment][:file]
+			@attachment.file_name = params[:attachment][:file].original_filename
+			@attachment.content_type = params[:attachment][:file].content_type
+		end
+
+		# Verifica se o arquivo ja esta associado a outro anexo
+		#file_path = "#{RAILS_ROOT}/public/upload/#{@course.id}/#{@attachment.file_name}"
+		#@attachment.errors.add("file", "already exists") if File.exists?(file_path)
+
+		if @attachment.save
+			AttachmentCreateLogEntry.create!(:target_id => @attachment.id, :user => @current_user, :course => @course)
+			flash[:notice] = 'Attachment created'[]
+			redirect_to :action => 'show', :id => @attachment.id
+		else
+			render :action => 'new'
+		end
+	end
+
+	def edit
+	end
+
+	def update
+		@attachment.description = params[:attachment][:description]
+		unless params[:attachment][:file].kind_of?(String)
+			@attachment.file = params[:attachment][:file]
+			@attachment.file_name = params[:attachment][:file].original_filename
+			@attachment.content_type = params[:attachment][:file].content_type
+		end
+
+		if @attachment.save
+			AttachmentEditLogEntry.create!(:target_id => @attachment.id, :user => @current_user, :course => @course)
+			@attachment.last_modified = Time.now.utc
+			flash[:notice] = 'Attachment updated'[]
+			redirect_to :action => 'show', :id => @attachment.id
+		else
+			render :action => 'edit'
+		end
+	end
+
+	def destroy
+		@attachment.destroy
+		flash[:notice] = 'Attachment removed'[]
+		flash[:undo] = undelete_course_attachment_url(@course, @attachment)
+		AttachmentDeleteLogEntry.create!(:target_id => @attachment.id, :user => @current_user, :course => @course)
+		redirect_to :controller => 'courses', :action => 'show', :id => @course
+	end
+
+	def download
+		send_file("#{RAILS_ROOT}/public/upload/#{@course.id}/#{@attachment.id}",
+				:filename    =>  @attachment.file_name,
+				:type        =>  @attachment.content_type,
+				:disposition =>  'attachment',
+				:streaming   =>  'true')
+	end
+
+	def undelete
+		@attachment = Attachment.find_with_deleted(params[:id])
+		@attachment.update_attribute(:deleted_at, nil)
+		flash[:notice] = 'Attachment restored'[]
+		AttachmentRestoreLogEntry.create!(:target_id => @attachment.id, :user => @current_user, :course => @course)
+		redirect_to course_attachment_url(@attachment.course, @attachment)
+	end
+
+	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?
+		@course = Course.find(params[:course_id])
+		@attachment = params[:id] ? @course.attachments.find(params[:id]) : Attachment.new
+	end
+
+	def cache_sweep
+		expire_fragment(:controller => 'courses', :action => 'show')
+	end
+end