Can't save my data into sqlite database - ruby-on-rails

Question

I am trying to implement a Parking Permit application page using ROR. I couldn't get my data saved into the database. The permit database is associated with the user also. The program won't save the data and execute the else statement. There is no error generated, i think i have missed something but i don't know the exact problem. Any help is appreciated!
Permit_controller.rb
class PermitsController < ApplicationController
before_action :set_permit, only: [:show, :destroy]
def index
#permits = Permit.all
end
def new
#permits = Permit.new
end
def create
#permits = Permit.new(permit_params)
if #permits.save
redirect_to root_path
else
redirect_to contact_path
end
end
def destroy
end
def show
#permits = Permit.find(params[:id])
end
private
# Use callbacks to share common setup or constraints between actions.
def set_permit
#permits = Permit.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def permit_params
params.require(:permit).permit(:vehicle_type, :name, :studentid, :department, :carplate,:permitstart, :permitend)
end
end
Permit.rb
class Permit < ApplicationRecord
belongs_to :user
end
Create_permit.rb
class CreatePermits < ActiveRecord::Migration[5.0]
def change
create_table :permits do |t|
t.string :vehicle_type
t.string :name
t.string :studentid
t.string :department
t.string :carplate
t.date :permitstart
t.date :permitend
t.references :user, foreign_key: true
t.timestamps
end
add_foreign_key :permits, :user
add_index :permits, [:user_id, :created_at]
end
end
User.rb
class User < ApplicationRecord
has_secure_password
has_many :permits
end
#book pg 264 Validation
permit/new.html.erb
<% provide(:title, 'New Permit') %>
<h1>Permit Application</h1>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<%= form_for(#permits) do |f| %>
<%= f.label :"Vehicle" %>
<%= f.text_field :vehicle_type, class: 'form-control' %>
<%= f.label :"License Plate" %>
<%= f.text_field :carplate, class: 'form-control' %>
<%= f.label :"Student ID" %>
<%= f.text_field :studentid, class: 'form-control' %>
<%= f.label :name %>
<%= f.text_field :name, class: 'form-control' %>
<%= f.label :"Department of applicant" %>
<%= f.text_field :department, class: 'form-control' %>
<%= f.label :permit_start %>
<%= f.date_select :permitstart, class: 'form-control' %>
<%= f.label :permit_end %>
<%= f.date_select :permitend, class: 'form-control' %>
<%= f.submit "Submit", class: "btn btn-primary" %>
<% end %>
</div>
</div>
schema.rb
ActiveRecord::Schema.define(version: 20160921071908) do
create_table "permits", force: :cascade do |t|
t.string "vehicle_type"
t.string "name"
t.string "studentid"
t.string "department"
t.string "carplate"
t.date "permitstart"
t.date "permitend"
t.integer "user_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["user_id"], name: "index_permits_on_user_id"
end
create_table "users", force: :cascade do |t|
t.string "name"
t.string "email"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "password_digest"
t.integer "user_type"
end
end

Answer 1

check with this #permits.save!.
it shows the exact error.

Answer 2

module ApplicationHelper
#for current user to use through out the app
def current_user
#current_user ||= session[:current_user_id] && User.find_by_id(session[:current_user_id]) # Use find_by_id to get nil instead of an error if user doesn't exist
end
end
and
def create
#permits = Permit.new(permit_params)
#permits.user = current_user
if #permits.save
redirect_to root_path
else
redirect_to contact_path
end
end
test it

Answer 3

Or you can just say that a permit has a single user and avoid the confusion.
#models/permit.rb
class Permit < ApplicationRecord
has_one :user
end
#controllers/permit_controller.rb
def create
#user = User.find(session[:user_id]) #use your session variable
#permits = Permit.new(permit_params)
if #permits.save
#user.permits << #permits
redirect_to root_path
else
redirect_to contact_path
end
end
It will save permits for the logged in user.