def create
      authorize! :create, CoachAssignment
      @coach_assignment = @participant.build_coach_assignment(
        coach_assignment_params
      )

      if @coach_assignment.save
        redirect_to participant_path(@participant),
                    notice: "Coach/Moderator was successfully assigned."
      else
        render :new
      end
    end
def create
      authorize! :create, CoachAssignment
      @coach_assignment = @participant.build_coach_assignment(
        coach_assignment_params
      )

      if @coach_assignment.save
        redirect_to participant_path(@participant),
                    notice: "Coach/Moderator was successfully assigned."
      else
        render :new
      end
    end
POST /think_feel_do_dashboard/participants/1/coaches