ruby-on-rails – Rails has_many:通过嵌套形式
发布时间:2020-12-16 20:31:12 所属栏目:百科 来源:网络整理
导读: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 enden
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 %> (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |