Rails的simple_form嵌套形式的联系

Question

我的应用程序有3种型号： 我使用与simple_form宝石嵌套形式顾问，项目与预约

class Consultant < ActiveRecord::Base 
    has_many :appointments 
end 

class Project < ActiveRecord::Base 
    has_many :appointments, :dependent => :destroy 
    accepts_nested_attributes_for :appointments, :allow_destroy => true 
end 

class Appointment < ActiveRecord::Base 
    belongs_to :consultant 
    belongs_to :project 
end 

我的形式如下：

= simple_nested_form_for(@project) do |f| 

    %div.field 
    = f.input :name, :label => 'Nom du projet' 
    = f.simple_fields_for :appointments do |builder| 
     = render 'appointment_fields', :f => builder 
    = f.link_to_add "ajouter un consultant", :appointments 

    %div 
    %div.actions 
    = f.submit 

与部分：

%p.fields 
    = f.input :consultant_id, :input_html => { :class => 'special' } 
    = f.association :consultant 
    = f.input :nb_days, :input_html => { :class => 'special',:size => 10 } 
    = f.input :rate, :input_html => {:size => 10} 
    = f.link_to_remove "Remove this task" 

是否有可能做一些事情这与simple_form一样简单吗？ 答案是肯定的：它很好地工作

Answer 1

错误是因为模型Appointment上没有关联调用顾问。改用顾问。