CODEWITHSUNDEEP
ruby-on-rails
Aghyad Algllad
Aghyad Algllad

Reputation: 1805

undefined method `students_path' for #<#<Class:0x00000003b7a860>:0x00000003b6d6d8> Did you mean? student_path

i am getting this error for a while my student_controller.rb file:

class StudentController < ApplicationController

def new
@student=Student.new
end

def create 
    @student=Student.new(params[:student])
    if @student.save
        redirect_to new_student_path
    end
end 
end

and my new.html.erb file:

 student infos
 <%= form_for Student.new do |f| %>
 firstname:<%= f.text_field :firstname %> <br/>
 lastname:<%= f.text_field :lastname %> <br>
 <%= f.submit %>
 <% end %>

the student_controller.rb file is located in controller folder and new.html.erb file is located in /views/student/ my ruby version is 2.3.0p0 and my rails version is 5.0.0 please any help and my routes.rb file:

Rails.application.routes.draw do
resources :student
end

Upvotes: 1

Views: 3292

Answers (2)

davideghz
davideghz

Reputation: 3685

try to rename your controller in students_controller.rb. Note students is plural.

Also rename class name from:

class StudentController < ApplicationController

to:

class StudentsController < ApplicationController

EDIT

You can write your create action as follow:

def create
  @student = Student.new(student_params)

  if @student.save
    redirect_to new_student_path
  end

end

  private
  # Never trust parameters from the scary internet, only allow the white list through.
  def student_params
    params.require(:student).permit(:firstname, :lastname)
  end

Upvotes: 2

Rahul Singh
Rahul Singh

Reputation: 3427

<%= form_for Student.new do |f| %>

will submit to StudentsController#create action. Form action will be "/students" and corresponding named route will be students_path, But you have defined singular routes for student

So either

Rename StudentController to StudentsController and make resources route plural as resources :students

or

Run $ rake routes, find student create path & Override automatic form action generation by giving url parameter e.g 

<%= form_for Student.new, url: student_index_path do |f| %>

Upvotes: 0

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