添加文本文件的预览功能

app/controllers/attachments_controller.rb

@@ -209,7 +209,12 @@ private
   end
 
   def read_authorize
-    @attachment.visible? ? true : deny_access
+    if @attachment.container_type == "HomeworkAttach"
+     true
+      #User.current.allowed_to?(:view_homework_attaches, @attachment.project) ? true : deny_access
+    else
+      @attachment.visible? ? true : deny_access
+    end
   end
 
   def delete_authorize

app/controllers/projects_controller.rb

@@ -33,12 +33,12 @@ class ProjectsController < ApplicationController
   menu_item l(:label_course_news), :only => :index
   
 
-  before_filter :find_project, :except => [ :index, :search,:list, :new, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise]
+  before_filter :find_project, :except => [ :index, :search,:list, :new, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise,:view_homework_attaches]
   # before_filter :authorize, :except => [:new_join, :new_homework, :homework, :statistics, :search, :watcherlist, :index, :list, :new, :create, :copy, :archive, :unarchive, :destroy, :member, :focus, :file, 
   #               :statistics, :feedback, :course, :enterprise_course, :course_enterprise, :project_respond, :share,
   #               :show_projects_score, :issue_score_index, :news_score_index, :file_score_index, :code_submit_score_index, :projects_topic_score_index]
-  before_filter :authorize, :only => [:show, :settings, :edit, :sort_project_members, :update, :modules, :close, :reopen]
-  before_filter :authorize_global, :only => [:new, :create]
+  before_filter :authorize, :only => [:show, :settings, :edit, :sort_project_members, :update, :modules, :close, :reopen,:view_homework_attaches]
+  before_filter :authorize_global, :only => [:new, :create,:view_homework_attaches]
   before_filter :require_admin, :only => [ :copy, :archive, :unarchive, :destroy, :calendar]
   before_filter :file, :statistics, :watcherlist
 

app/models/homework_attach.rb

@@ -29,6 +29,13 @@ class HomeworkAttach < ActiveRecord::Base
     result
   end
 
+  def project
+    work = HomeworkForCourse.find_by_bid_id(self.bid_id)
+    if work
+        work.project
+    end
+  end
+
   def add_jours options
     jfm = self.journals_for_messages.build(options)
     jfm.save

lib/redmine.rb

@@ -178,6 +178,11 @@ Redmine::AccessControl.map do |map|
     map.permission :manage_related_issues, {:repositories => [:add_related_issue, :remove_related_issue]}
   end
 
+  #作业模块权限
+  map.project_module :bids do |map|
+    map.permission :view_homework_attaches, {:bids => [:show, :show_project, :revision]}, :read => true
+  end
+
   map.project_module :boards do |map|
     map.permission :manage_boards, {:boards => [:new, :create, :edit, :update, :destroy]}, :require => :member
     map.permission :view_messages, {:boards => [:index, :show], :messages => [:show]}, :public => true, :read => true