No route matches [POST] "/users/edit"

Question

I was trying to create a update form for the registered users in my applcation

View:

<h2><%= @title =%></h2>

<% if @user.errors.any? %>
<div id="error">
<h2><%= pluralize(@user.errors.count,"error") %> prohibited this user from registering</h2>
<ul>
<% @user.errors.full_messages.each do |msg| %>
<li><%= msg%></li>
<%end%>
</ul>
</div>
<%end%>

<%= form_for :user do |form| %>

<div class="reg_form">
<label for="first_name">First Name: </label>
<%= form.text_field :first_name %>
</div>
<div class="reg_form">  
<label for = "last_name">Last Name: </label>
<%= form.text_field  :last_name %>
</div>
<div class="reg_form">
<%=form.submit "Update"%>
</div> 
<%end%>

Controller: users_controller.rb

def index
    unless session[:user_id]
        flash[:notice] = "Please Login first"
        redirect_to :action => "new"
    end
    @title = "Profile"
    @user=User.find(session[:user_id])
end


def edit
    @title="Profile Update"
    @user = User.find(session[:user_id])
    if param_posted?(:user)
        if @user.update_attributes(params[:user])
            flash[:notice] = "Update Successful"
            redirect_to :controller => "user", :action => "profile"
        end
    end
end

I included get "edit"=> 'users#edit' in routes.rb. However, I get an error 'No route matches [POST] "/users/edit"'

Any help is appreciated. Thank you.

Answer 1

The RESTful edit route should use a GET verb. The vanilla resource#edit method doesn't change the database, but simply puts up a form populated with the selected resource's values. Submitting that form to resource#update (using the PUT verb) does the work of actually changing the database.

So, your users#edit method isn't doing what a standard RESTful edit action does. I'd suggest using the Standard Way unless you have a really good reason and you document that reason carefully. I concur that spending time looking at rails routing guides and a vanilla controller would be useful.

Answer 2

You need a POST route to handle the form submission. Try resources :users in routes.rb and do a rake routes in command prompt to see all your available routes.

I recommend you review the Rails Guides and look at all the methods created using scaffold and how Rails handles the routing for different things to each of the methods.