#76 scope_out

iteye_19623

于 2008-12-09 20:03:13 发布

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分类专栏： Railscasts 文章标签： Rails SVN

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Scope-Out 插件能自动生成多种查找方法，帮助将查找条件迁移到模型中。该插件简化了Rails应用中任务与项目的关联查询过程，通过定义特定的范围查询，如查找未完成的任务等。

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The scope_out plugin will generate several helpful find methods for you automatically! It's the best way to move the find conditions into your model. Watch this episode for details.


script/plugin install http://scope-out-rails.googlecode.com/svn/trunk/# models/task.rb
scope_out :incomplete, :conditions => ['complete=?', false], :order => 'name'

# tasks_controller.rb
@tasks = Task.find_incomplete(:all)

# models/project.rb
has_many :tasks, :extend => Task::AssociationMethods

# projects_controller.rb
def show
  @project = Project.find(params[:id])
  @tasks = @project.tasks.find_incomplete(:all)
end