+ ##
+ # return permitted diary entry parameters
+ def entry_params
+ params.require(:diary_entry).permit(:title, :body, :language_code, :latitude, :longitude)
+ end
+
+ ##
+ # return permitted diary comment parameters
+ def comment_params
+ params.require(:diary_comment).permit(:body)
+ end
+
+ ##
+ # require that the user is a administrator, or fill out a helpful error message
+ # and return them to the user page.
+ def require_administrator
+ unless @user.administrator?
+ flash[:error] = t("user.filter.not_an_administrator")
+ redirect_to :controller => "diary_entry", :action => "view"
+ end
+ end
+
+ ##
+ # is this list user specific?
+ def user_specific_list?
+ params[:friends] || params[:nearby]
+ end
+
+ ##
+ # decide on a location for the diary entry map
+ def set_map_location
+ if @diary_entry.latitude && @diary_entry.longitude
+ @lon = @diary_entry.longitude
+ @lat = @diary_entry.latitude
+ @zoom = 12
+ elsif @user.home_lat.nil? || @user.home_lon.nil?
+ @lon = params[:lon] || -0.1
+ @lat = params[:lat] || 51.5
+ @zoom = params[:zoom] || 4
+ else
+ @lon = @user.home_lon
+ @lat = @user.home_lat
+ @zoom = 12