sortable column headers 使用

Model

def list_all_tasks
add_to_sortable_columns('listing', Task, 'task_name')
add_to_sortable_columns('listing', Task, 'finish_time')
add_to_sortable_columns('listing', Goal, 'name')
@tasks = Task.find(:all, :include => :goal, :order => sortable_order('listing', Task, 'task_name'))
end

View

<%= link_to '任務名稱', sort_param('listing', Task, 'task_name') %>
<%= link_to '任務完成時間', sort_param('listing', Task, 'finish_time') %>
<%= link_to '任務所屬目標', sort_param('listing', Goal, 'name') %>

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add_to_sortable_columns 柿子