我有简单的预订和客户模型:
class Client
include DataMapper::Resource
property :id, Serial
property :name, String, required: true
property :email, String, required: true
#....
has n, :bookings, constraint: :destroy
end
class Booking
include DataMapper::Resource
property :id, Serial
property :start_date, Date
property :end_date, Date
#....
belongs_to :client
end
在视图中,按预期生成表:
<% @bookings.each do |booking| %>
<tr>
<td><%= booking.client.name %></td>
<td><%= booking.start_date %></td>
<td><%= booking.end_date %></td>
....
</tr>
<% end %>
我想通过点击相应的表格列标题来订购表格。
我可以通过以下方式对表进行排序:start_date或:end_date,以及:client_id,但是:client_id不是很有用;我希望能够使用以下客户端模型的:name属性进行排序:client_id
有人能告诉我控制器需要采用什么格式吗?
get '/bookings' do
@bookings = Booking.all(order: :client_id.name) #no method error
@bookings = Booking.all(order: [:client_id][:name]) #can't convert to integer
erb :bookings
end
由于