导轨 - NoMethodError在控制器

Question

我的应用程序每次我想查看我的additionals的病人，我得到以下错误时间，这有很多的要求，并与它相关联additionals病人，：

NoMethodError in AdditionalsController#index 

undefined method `additionals' for #<Patient:0x007fb3e7c1aaf0> Did you mean? additonals additonals= 
Extracted source (around line #8): 

6 @patient = Patient.find(params[:patient_id]) 
7 # Access all additionals for that patient 
8 @additionals = @patient.additionals 
9 end 
10 

patient.rb

class Patient < ApplicationRecord 
    has_many :requests 
    has_many :additonals 
    def self.search(search_for) 
    Patient.where("last_name = ?", search_for) 
    end 
end 

additional.rb

class Additional < ApplicationRecord 
    belongs_to :patient 
end 

additional_controller.rb

class AdditionalsController < ApplicationController 
    def index 


@patient = Patient.find(params[:patient_id]) 
    # Access all additionals for that patient 
    @additionals = @patient.additionals 
    end 

    # GET /patients/1/additionals/2 
    def show 
    @patient = Patient.find(params[:patient_id]) 
    # For URL like /patients/1/additionals/2 
    # Find an additional in patients 1 that has id=2 
    @additional = @patient.additionals.find(params[:id]) 
    end 
    # GET /patients/1/additionals/new 
    def new 
    @patient = Patient.find(params[:patient_id]) 
    # Associate an additional object with patient 1 
    @additional = @patient.additionals.build 
    end 
    # POST /patients/1/additionals 
    def create 
    @patient = Patient.find(params[:patient_id]) 
    # For URL like /patients/1/additionals 
    # Populate an additional associate with patient 1 with form data 
    # Patient will be associated with the additional 
    # @additional = @patient.additionals.build(params.require(:additional).permit!) 
    @additional = @patient.additionals.build(params.require(:additional).permit(:date, :cost, :note)) 
    if @additional.save 
    # Save the additional successfully 
     redirect_to patient_additional_url(@patient, @additional) 
    else 
     render :action => "new" 
    end 
    end 

    # GET /patients/1/additionals/2/edit 
    def edit 
    @patient = Patient.find(params[:patient_id]) 
    # For URL like /patients/1/additionals/2/edit 
    # Get additional id=2 for patient 1 
    @additional = @patient.additionals.find(params[:id]) 
    end 
    # PUT /patients/1/additionals/2 
    def update 
    @patient = Patient.find(params[:patient_id]) 
    @additional = Additional.find(params[:id]) 
    if @additional.update_attributes(params.require(:additional).permit(:date, :cost, :note)) 
     # Save the additional successfully 
     redirect_to patient_additional_url(@patient, @additional) 
    else 
     render :action => "edit" 
    end 
    end 

# DELETE /patients/1/additionals/2 
    def destroy 
    @patient = Patient.find(params[:patient_id]) 
    @additional = Additional.find(params[:id]) 
    @additional.destroy 
    respond_to do |format| 
     format.html { redirect_to patient_additionals_path(@patient) } 
     format.xml { head :ok } 
    end 
    end 
end 

编辑 - 更新显示完整的错误信息。

Answer 1

务必确保您阅读完整的错误信息。

它看起来像你有拼写错误additonals（从“你的意思”）

最有可能你拼写你的has_many :additionals关系是错误的。

Answer 2

在Patient模型，你有：

has_many :additonals 

它应该是：

has_many :additionals