Getting NotNullViolation when passing Data through simple_form_for in Rails

Question

I'm getting above error when passing data through simple_form_for. My view, controller and database file is included below. This looks like I am not getting the values submitted by simple_form_for in controller. Note that, in my database table, attribute status is not null and I am not taking it as an input in view. How can I solve this error?

Database

create_table "users", force: :cascade do |t|
t.integer "team_lead_id"
t.string "name", null: false
t.string "email", null: false
t.string "password", null: false
t.date "joining_date", null: false
t.integer "status", null: false
t.integer "role"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end

View

<%= simple_form_for @user , :url => user_createUser_url, :method => :post do |f| %>
    <%= f.input :name %><br />
    <%= f.input :email%><br />
    <%= f.input :password %><br />
    <%= f.input :joining_date, as: :date, order: [:day, :month, :year] %><br/>
    <%= f.submit "Create User" %>
  <% end %>

Controller

def createUser

    fresh = User.new

    fresh.name = params[:name]
    fresh.email = params[:email]
    fresh.password = params[:password]
    fresh.joining_date = params[:joining_date]
    fresh.status = 1
    fresh.role = 3

    if fresh.save
      flash[:notice] = "User Created"
      redirect_to(:action => index)
    else
      flash[:notice] = "Creating failed"
      redirect_to(:action => index)
    end

  end

And I'm getting this Error

PG::NotNullViolation: ERROR: null value in column "name" violates not-null constraint DETAIL: Failing row contains (12, null, null, null, null, null, 1, 3, 2018-11-12 13:37:54.589835, 2018-11-12 13:37:54.589835). : INSERT INTO "users" ("status", "role", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id"

Answer 1

createUser is not a CRUD convention, instead use create but also you should be using strong parameters and also don't use goofy names like fresh but instead model objects should be named semantically.

def create
  user = User.new(permitted_params)
  user.status = 1
  user.role = 3

  if user.save
    flash[:notice] = "User Created"
      redirect_to(:action => index)
  else
    flash[:notice] = "Creating failed"
    redirect_to(:action => index)
  end
end

def permitted_params
  params.require(:user).permit(:name, :email, :password, :joining_date)
end

You might not need joining_date, since you have created_at, but if you do want to keep that field, at least use the name joined_date or join_date since it will always be past tense. In fact a user is never "joining", they either have or have not "joined" yet.

As a side note you should never store passwords unencrypted, perhaps see bcrypt