Signup form for admin in rails - ruby-on-rails

Question

I have a parent table and in it there is a boolean field admin. I have a admin signup page where i want a hidden field for admin to set as true. Please help. I have tried the step below. please correct it as it is not working.
<div class='row'>
<div class= 'col-xs-12'>
<%= form_for(#parent, :html => { multipart: true, class: "form-horizontal", role: "form"}) do |f| %>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= f.label :email, class: "required" %>
</div>
<div class="col-sm-8">
<%= f.email_field :email, class: "form-control", placeholder: "Enter email", required: true %>
</div>
</div>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= f.label :password, class: "required" %>
</div>
<div class="col-sm-8">
<%= f.password_field :password, class: "form-control", placeholder: "Enter password", required: true %>
</div>
</div>
<div class = "form-group">
<div class="control-label col-sm-2">
<%= f.label :password_confirmation, class: "required" %>
</div>
<div class="col-sm-8">
<%= f.password_field :password_confirmation, class: "form-control", placeholder: "Re-enter password", required: true %>
</div>
</div>
<%= f.hidden_field :admin, :value => true %>
<div class="form-group">
<div class="col-sm-10">
<%= f.submit 'Sign up', class: 'btn btn-primary btn-lg' %>
</div>
</div>
<% end %>
</div>
</div>
Parent controller
def addusers
#parent=Parent.new
end
Updated parent controller
def new
#parent = Parent.new
#parent.secondaryparents.build
add_breadcrumb "Home", :root_path
add_breadcrumb "Sign up"
end
def addusers
#parent=Parent.new
end
def create_users
#parent=Parent.new(parent_params)
#parent.admin = true
if #parent.save
ParentMailer.registration_confirmation(#parent).deliver
flash[:success] = "Please ask user to confirm email address to continue"
redirect_to main_admin_path
else
flash[:danger] = "There was an error with registering. Try again"
redirect_to main_admin_path
end
end
def create
#parent = Parent.new(parent_params)
if #parent.save
ParentMailer.registration_confirmation(#parent).deliver
flash[:success] = "Please confirm your email address to continue"
redirect_to root_path(#parent)
else
flash[:danger] = "There was an error with registering. Try again"
redirect_to signup_path
end
end
Routes
resources :parents do
resources :children do
resources :fundings
end
end
end
get 'signup', to:'parents#new'
get 'login', to: 'sessions#new'
get 'usersignup', to:'parents#addusers'
post 'usersignup', to:'parents#create_users'
resources :parents, except: [:new] do
member do
get :confirm_email
end
end

Answer 1

Remove hidden line from html page, no need it f.hidden_field :admin, :value => true
Form_for
form_for(#parent, url: usersignup_path,
:html => { multipart: true, class: "form-horizontal", role: "form"}) do |f|
Add to routes:
post 'usersignup', to:'parents#create_users'
Controller:
def create_users
#parent = Parent.new(parent_params)
#parent.admin = true
if #parent.save
#do yr logic here
else
redirect_back(fallback_location: "/", flash: { danger: "smth went wrong.." })
end
end
def parent_params
params.require(:parent).permit(:email, :password, :password_confirmation)
end