Class: StoreController

Inherits:
UmlautController show all
Defined in:
app/controllers/store_controller.rb

Defined Under Namespace

Classes: NotFound

Instance Method Summary collapse

Methods included from UmlautConfigurable

set_default_configuration!

Instance Method Details

#index ⇒ Object 



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# File 'app/controllers/store_controller.rb', line 4

def index
  
  perm = Permalink.find(params[:id])
      
  co = OpenURL::ContextObject.new

  # We might have a link to a Referent in our db, or we might
  # instead have to rely on an XML serialized ContextObject in
  # the permalink, if the Referent has been purged. Either way
  # we're good. 
  referent = nil
  if ( perm && perm.referent)
    referent = perm.referent
  elsif (perm && perm.context_obj_serialized)
    stored_co = perm.restore_context_object
    # And a referrent, no referrer for now, we'll restore it later. 
    referent = Referent.create_by_context_object( stored_co, :permalink => false )
    perm.referent = referent
  end

  perm.last_access = Time.now # keep track of when permalink last actually retrieved

  # will catch possible new referent to be saved, as well as
  # update to last_access
  perm.save!
  

  unless ( referent )
    # We can't find a referent or succesfully restore an xml context
    # object to send the user to the request. We can not resolve
    # this permalink!
    
    raise NotFound.new("Permalink request could not be resolved. Returning 404. Permalink id: #{params[:id]}")            
  end
  
  # Whether it was an already existing one, or a newly created one
  # turn it back to a co so we can add a few more things. 
  co.import_context_object(referent.to_context_object)
  
  # We preserve original referrer. Even though this isn't entirely accurate
  # this is neccesary to get SFX to handle it properly when we call to SFX,
  # including handling source-specific private data, etc. 
  co.referrer.add_identifier( perm.orig_rfr_id ) if perm.orig_rfr_id

  # Let's add any supplementary umlaut params passed to us
  # Everything except the 'id' which we used for the Rails action. 
  new_params = params.clone
  new_params.delete(:id)
  # and add in our new action
  new_params[:controller] = 'resolve'
  new_params[:action] = 'index'
  # Plus let's tell it about the referent, to make sure we get a referent
  # match even though we've changed the rfr_id etc.
  new_params[:'umlaut.referent_id'] = referent.id

  # Generate a Rails URL, then add on the KEV for our CO on the end
  # You might think you can just merge these into a hash and use url_for,
  # but Rails redirect_to/url_for isn't happy with multiple query params
  # with same name.

  redirect_to( url_for_with_co( new_params, co) )
end