我刚刚通过协会跳入了has_many：我试图通过单一的形式实现对所有3个表(医师,患者和关联表)保存数据的能力.
我的迁移：
class CreatePhysicians < ActiveRecord::Migration
def self.up
create_table :physicians do |t|
t.string :name
t.timestamps
end
end
end
class CreatePatients < ActiveRecord::Migration
def self.up
create_table :patients do |t|
t.string :name
t.timestamps
end
end
end
class CreateAppointments < ActiveRecord::Migration
def self.up
create_table :appointments do |t|
t.integer :physician_id
t.integer :patient_id
t.date :appointment_date
t.timestamps
end
end
end
我的型号：
class Patient < ActiveRecord::Base has_many :appointments has_many :physicians,:through => :appointments accepts_nested_attributes_for :appointments accepts_nested_attributes_for :physicians end class Physician < ActiveRecord::Base has_many :appointments has_many :patients,:through => :appointments accepts_nested_attributes_for :patients accepts_nested_attributes_for :appointments end class Appointment < ActiveRecord::Base belongs_to :physician belongs_to :patient end
我的控制器：
def new
@patient = Patient.new
@patient.physicians.build
@patient.appointments.build
end
我的观点(new.html.rb)：
<% form_for(@patient) do |patient_form| %>
<%= patient_form.error_messages %>
<p>
<%= patient_form.label :name,"Patient Name" %>
<%= patient_form.text_field :name %>
</p>
<% patient_form.fields_for :physicians do |physician_form| %>
<p>
<%= physician_form.label :name,"Physician Name" %>
<%= physician_form.text_field :name %>
</p>
<% end %>
<p>
<%= patient_form.submit 'Create' %>
</p>
<% end %>
<%= link_to 'Back',patients_path %>
我可以创建一个新的患者,医师和相关记录的预约,但是现在我想要在表单中设置约会日期的字段.我应该在哪里放置预约的字段以及我的控制器需要做哪些更改？我尝试了谷歌搜索,尝试了this,但被卡住了一些或其他错误实现它.
解决方法
好的,这个问题的这个小怪物让我呆了几个小时,所以我要在这里发布我的工作解决方案,希望它能够窥视一段时间.这是Rails 4.0和Ruby 2.0.这也克服了我所拥有的“符号到整数转换”问题.
楷模：
class Patient < ActiveRecord::Base has_many :appointments has_many :physicians,:through: :appointments accepts_nested_attributes_for :appointments end class Appointment < ActiveRecord::Base belongs_to :physician belongs_to :patient accepts_nested_attributes_for :physician end class Physicians < ActiveRecord::Base has_many :appointments has_many :patients,through: :appointments end
控制器：
def new @patient= Patient.new @appointments = @patient.appointments.build @physician = @appointments.build_physician end def create Patient.new(patient_params) end def patient_params params.require(:patient).permit(:id,appointments_attributes: [:id,:appointment_time,physician_attributes: [:id ] ) end
视图
<% form_for(@patient) do |patient_form| %>
<%= patient_form.error_messages %>
<p>
<%= patient_form.label :name,"Patient Name" %>
<%= patient_form.text_field :name %>
</p>
<% patient_form.fields_for :appointments do |appointment_form| %>
<p>
<%= appointment_form.label :appointment_date,"Appointment Date" %>
<%= appointment_form.date_field :appointment_date %>
</p>
<% appointment_form.fields_for :physician do |physician_form| %>
<p>
<%= physician_form.label :name,"Physician Name" %>
<%= physician_form.text_field :name %>
</p>
<% end %>
<% end %>
<p>
<%= patient_form.submit 'Create' %>
</p>
<% end %>
<%= link_to 'Back',patients_path %>