using params for back to edit

app/controllers/jobs_controller.rb

@@ -32,10 +32,16 @@ class JobsController < ApplicationController
     @job_id = params[:confirm_apply_info][:job_id]
 
     if params[:commit] == "Edit"
-      redirect_to apply_path(job_id: @job_id)
+      redirect_to apply_path(job_id: @job_id, params: confirm_apply_info_params)
     else
       current_user.user_jobs.find_by(user_id: current_user.id, job_id: @job_id) ||
       current_user.user_jobs.create!(user_id: current_user.id, job_id: @job_id, applied_at: Time.current)
     end
   end
+
+  private
+
+  def confirm_apply_info_params
+    params.require(:confirm_apply_info).permit(:job_id, :first_name, :last_name, :email)
+  end
 end

app/models/job.rb

@@ -43,4 +43,9 @@ class Job < ApplicationRecord
   def self.latest_job
     @latest_job ||= order(updated_at: :desc).take(Settings.top.job.limit)
   end
+
+  def apply_available
+    user = User.find_by(:id)
+    user_jobs.find_by(job_id: @job_id, user_id: user.id)
+  end
 end

app/views/jobs/apply.html.erb

@@ -13,19 +13,19 @@
 
   <div class="form-group">
     <%= f.label :first_name %>
-    <%= f.text_field :first_name, value: (@apply_first_name || @current_user.first_name),
+    <%= f.text_field :first_name, value: params[:first_name] || @current_user.first_name,
                                   class: "form-control", required: "true" %>
   </div>
 
   <div class="form-group">
     <%= f.label :last_name %>
-    <%= f.text_field :last_name, value: (@apply_last_name || @current_user.last_name),
+    <%= f.text_field :last_name, value: params[:last_name] || @current_user.last_name,
                                  class: "form-control", required: "true" %>
   </div>
 
   <div class="form-group">
     <%= f.label :email %>
-    <%= f.email_field :email, value: (@apply_email || @current_user.email),
+    <%= f.email_field :email, value: params[:email] || @current_user.email,
                               class: "form-control", required: "true" %>
   </div>