Unable to save form - ruby-on-rails

Question

I'm trying to save a form, and I am so lost on why it refuses to save. Does anybod have a clue what might be wrong?
Here's the form code:
<%= form_for #service, url: services_path do |f| %>
<% #profiles.each do |profile| %>
<%= f.text_field :service_id, value: "#{profile.service_id}" %>
<div class="media">
<a class="media-left" href="#">
<%= image_tag profile.avatar, height: '45', width: '45', class: 'img-circle' %>
</a>
<div class="media-body">
<h4 class="media-heading"><%= profile.service_username %></h4>
<%= profile.service %>
</div>
</div>
<% end %>
<%= f.submit %>
<% end %>
and
#service = current_user.services.new
the association between them are:
user has_many :services
service belongs_to :user
and the services controller create looks like this:
def create
#service = current_user.services.new(service_params)
if #service.save
flash[:notice] = "success"
redirect_to root_url
else
flash[:alert] = "Unable to add"
redirect_to :back
end
end
my logs say:
Started POST "/services" for 127.0.0.1 at 2015-01-17 18:09:44 -0800
Processing by ServicesController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"lsW5aVuVUCQrHsaCo+uxbR11sF3mph3lTnM8O/Dtxn8=", "service"=> {"service_id"=>"2967861508"}, "commit"=>"Create Service"}
User Load (0.8ms) SELECT "users".* FROM "users" WHERE "users"."id" = 30 ORDER BY "users"."id" ASC LIMIT 1
(0.2ms) BEGIN
(0.2ms) ROLLBACK
Redirected to http://localhost:3000/schedules
Completed 302 Found in 9ms (ActiveRecord: 1.1ms)

Answer 1

Oops, minor edit below (#service.errors instead of #validation.errors):
From your logs, you can see that you got into the controller create method and the save failed. This is usually a validation problem but I can't tell from what you posted. I would put #service.errors into the flash instead of just "unable to add". This should help you and future users see what's going on when the create fails.