Prefill form fields as values in Rails - ruby-on-rails

Question

TL;DR Is it possible to prefill from one model in the same form builder to another model? Is there a correct way of solving this problem?
I have a form that takes several methods that requires to be passed in: name, email, bio, location, homepage, work.
Email method will need to be retrieved via Devise user model.
In my new.html.erb, it works fine as normal but it returns nil from the email field whenever I do the following:
<%= form_for :profile, url: profiles_path do |f| %>
...
<div><% if current_user.email.present? %><%= f.label :email %><br>
<%= f.email_field current_user.email %><% end %></div>
<% end %>
ProfilesController.rb:
class ProfilesController < ApplicationController
before_action :authenticate_user!, except: [:show]
before_action :find_profile_by_id, only: [:show, :edit, :update]
after_filter :destroy_user!, only: [:destroy]
def index
if #profile.blank?
render :new
else
render :show
end
end
def new
#profile = current_user.profiles.build
#user = current_user.where('email=?')
end
def create
#profile = current_user.profiles.build(profile_params)
if #profile.save
redirect_to #profile
else
render :new
end
end
def show
end
def edit
end
def update
if #profile.update(profile_params)
redirect_to #profile
else
render :edit
end
end
def destroy
#user.destroy
#profile.destroy
redirect_to root_path
end
private
def profile_params
params.require(:profile).permit(:name, :email, :bio, :location, :homepage, :work)
end
def find_profile_by_id
#profile = Profile.find(params[:id])
end
def destroy_user!
#user = User.find(params[:id])
end
end
Is this the correct solution for this?

Answer 1

Your approach seems generally okay but try changing
<%= f.email_field current_user.email %>
To
<%= f.email_field(current_user, current_user.email) %>