Render page with rails - ruby-on-rails

Question

I'm trying to make "friendship" between model Programme and Student. I do it with has_many :through model Relationship. In Relationship controller I have create action, which should redirect another page after the friendship occurs.
So, in Student show view I have link_to request friendship. I thought I will be able to enter Student show page, but instead it redirects me from Student index when I try to enter Student show view to another page. So I actually can't enter Student show, it just redirects me to other page.
Why is that happening? I want have redirect from Student show view after I click on "request friendship" to other model page.
Student show.html.erb
<%= link_to "Request friendship with #{#student.name}",
{ :controller => "relationship", :action => "create",
:id => #student.name },
:confirm => "Send friend request to #{#student.name}?" %>
route.rb
match "/students/:id" => "relationships#create"
UPDATED
Relationship controller
def create
Relationship.request(#prog, #student)
flash[:notice] = "Friend request sent."
redirect_to prog_url
end
rake routes
relationships_create GET /relationships/create(.:format) relationships#create
relationships_destroy GET /relationships/destroy(.:format) relationships#destroy
/students/:id(.:format) relationships#create
relationships GET /relationships(.:format) relationships#index
POST /relationships(.:format) relationships#create
new_relationship GET /relationships/new(.:format) relationships#new
edit_relationship GET /relationships/:id/edit(.:format) relationships#edit
relationship GET /relationships/:id(.:format) relationships#show
PUT /relationships/:id(.:format) relationships#update
DELETE /relationships/:id(.:format) relationships#destroy
students GET /students(.:format) students#index
POST /students(.:format) students#create
new_student GET /students/new(.:format) students#new
edit_student GET /students/:id/edit(.:format) students#edit
student GET /students/:id(.:format) students#show
PUT /students/:id(.:format) students#update
DELETE /students/:id(.:format) students#destroy
progs GET /progs(.:format) progs#index
POST /progs(.:format) progs#create
new_prog GET /progs/new(.:format) progs#new
edit_prog GET /progs/:id/edit(.:format) progs#edit
prog GET /progs/:id(.:format) progs#show
PUT /progs/:id(.:format) progs#update
DELETE /progs/:id(.:format) progs#destroy

Answer 1

Not sure I understand completely what #prog should be, but this is the way to go
def create
#student = Student.find_by_id(params[:id])
#prog = Programme.find_by_id(params[:prog]) #You need to fill this in
Relationship.request(#prog, #student)
flash[:notice] = "Friend request sent."
redirect_to #student # Or #prog, or whatever you'd like
end
You would probably need to pass the prog.id as well to the controller something like:
match "/students/:id/:prog" => "relationships#create"
and add
<%= link_to "Request friendship with #{#student.name}",
{ :controller => "relationship", :action => "create",
:id => #student.name, :prog => #student.current_programme },
# I don't know how you differ programmes, you'd have to work this one out
:confirm => "Send friend request to #{#student.name}?" %>