+ ##
+ # require that the user is a administrator, or fill out a helpful error message
+ # and return them to the user page.
+ def require_administrator
+ if @user and not @user.administrator?
+ flash[:error] = t('user.filter.not_an_administrator')
+
+ if params[:display_name]
+ redirect_to :controller => 'user', :action => 'view', :display_name => params[:display_name]
+ else
+ redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri
+ end
+ elsif not @user
+ redirect_to :controller => 'user', :action => 'login', :referer => request.request_uri
+ end
+ end
+
+ ##
+ # ensure that there is a "this_user" instance variable
+ def lookup_this_user
+ @this_user = User.find_by_display_name(params[:display_name])
+ rescue ActiveRecord::RecordNotFound
+ redirect_to :controller => 'user', :action => 'view', :display_name => params[:display_name] unless @this_user
+ end
+
+ ##
+ # Choose the layout to use. See
+ # https://rails.lighthouseapp.com/projects/8994/tickets/5371-layout-with-onlyexcept-options-makes-other-actions-render-without-layouts
+ def choose_layout
+ oauth_url = url_for(:controller => :oauth, :action => :oauthorize, :only_path => true)
+
+ if [ 'api_details' ].include? action_name
+ nil
+ elsif params[:referer] and URI.parse(params[:referer]).path == oauth_url
+ 'slim'
+ else
+ 'site'
+ end
+ end
+
+ ##
+ #
+ def disable_terms_redirect
+ # this is necessary otherwise going to the user terms page, when
+ # having not agreed already would cause an infinite redirect loop.
+ # it's .now so that this doesn't propagate to other pages.
+ flash.now[:skip_terms] = true
+ end
+end