Rails 3.2.x呈现具有特定id的另一个模板视图

时间:2013-02-24 08:17:17

标签: ruby-on-rails-3.2 rspec2 rails-activerecord actionview rails-models

我正在尝试以下代码:

class AppointmentsController < ApplicationController

def create
    @appointment = Appointment.new(params[:appointment])
    @current_patient = @appointment.patient_id
    if @appointment.save
        flash[:success] = "Appointment scheduled!"
        redirect_to patient_path(@current_patient)
    else
        render 'patients/show'
    end
end

目前正在通过三个控制器。其中两个似乎很重要。

class Appointment < ActiveRecord::Base
  attr_accessible :appointment_date, :appointment_notes, :appointment_time, :procedure_id, :patient_id
  belongs_to :patient
  belongs_to :procedure

  validates :procedure_id, presence: true
  validates :patient_id, presence: true
  validates :appointment_date, presence: true
  validates :appointment_time, presence: true
class Patient < ActiveRecord::Base
  attr_accessible :address1, :address2, :city, :comment, :email, :first_name, :init_date, :init_time, :last_name, :mobile, :notes, :phone, :state, :zip
  before_validation :upcase_patient
  before_save { self.email.downcase! }
  has_many :appointments, dependent: :destroy
  has_many :procedures, through: :appointments

我的创建方法非常棒。但是,当我提交数据并且未在约会中传递验证时,它应该呈现正确的app.dev/patients/:id页面,其中:id是我正在使用的当前页面。有问题的表格是创建约会的表格(通过Patient / show视图)。当提交不正确或零数据并且存在:true时,我希望呈现相同的页面。我目前收到的是:

rspec的

ActionView::Template::Error:
   undefined method `first_name' for nil:NilClass
 # ./app/views/patients/show.html.erb:1:in `_app_views_patients_show_html_erb__4137167421928365638_70201005779320'
 # ./app/controllers/appointments_controller.rb:11:in `create'

我怀疑这与能够相应地在正确的路径上设置渲染有关,特别是调用正确的患者/ id。任何帮助将不胜感激。

1 个答案:

答案 0 :(得分:1)

您最可能的问题是,您在patients/show中使用的变量在验证失败并且您呈现模板时未在create动作中声明。解决此问题的最佳方法是,如果验证失败,则在create action上声明show动作上使用的同一组变量

def show
  @patients = ...
  @files = ...
end

def create
  if @object_that_fails_validation.save
  else
    @patient = ...
    @files = ...
    #render the show action
  end
end

如果您认为这不是DRY,尤其是当您声明了很多变量时,可以通过ajax提交表单或将变量移动到其他方法

def show
  set_variables
end

def create
  if @object_that_fails_validation.save
  else
    set_variables
    #render the show action
  end
end

protected

def set_variable
  @patient = ...
  @files = ...
end