CODEWITHSUNDEEP
ruby-on-rails-3
Castielle
Castielle

Reputation: 435

How pass variable submitted in form into 'new' action

I am trying to send a message to another user. But when I leave a field blank, the controller renders another 'new' action.

Here is the view code that links to the first submit:

    <%= link_to 'Send Mail', {:controller => 'messages', :action => 'new', :recipient_id => @profile.id}, :class => 'btn btn-large btn-primary' %>

Here is the message#new code:

  def new
  @message = Message.new

  @recipient = Profile.find(params[:recipient_id])

end

Here is the message#new view code:

<%= simple_form_for @message do |f| %>

<%= f.input :title %>
<%= f.input :body %>
<%= f.input :recipient_id, :as => :hidden, :input_html => {:value => @recipient.id} %>
<%= f.input :sender_id, :as => :hidden, :input_html => {:value => @recipient.id} %>

<%= f.button :submit %>
<% end %>

Here is the message#create code:

def create
@message = Message.new(params[:message])

if @message.save
  flash[:notice] = "New message created"
  redirect_to @message
else
  flash[:error] = "Did not work"
  @recipient = params[:recipient_id]
  render action: "new"
end
  end

How do I get the :recipient_id value submitted in the form and pass into the render new action?

Upvotes: 0

Views: 404

Answers (1)

nishanthan
nishanthan

Reputation: 460

When you rendering new method rails won't execute it codes instead it only renders the view(new.html.erb) of the new action and you already generating a recipient_id which is enough for your form to pass the parameter

Try this 

    def create
        @message = Message.new(params[:message])
        if @message.save
        flash[:notice] = "New message created"
            redirect_to @message
        else
            flash[:error] = "Did not work"
            @recipient = Profile.find(params[:message][:recipient_id])
            render action: "new"
        end
end

When rendering the new action we have to create the instances manually which is used in the view.

Note: If you want generate a new parameter use redirect_to method, where render uses the previous parameters until a new request is generated

Upvotes: 2

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