From: Sijo Kg <sijo@...>
Date: 2008-08-18T17:34:06+09:00
Subject: ruby exception handling

Hi
   I have been learning exception handling in ruby.I am not familiar
with the exception handling mechanisms (The project which I am working
is my first project and it is in Ruby)..Could anyone explain me how to
add exception handling coding for the following fragment Then it will be
very valuable for me to understand exception handling mechanisms in
ruby.Here what I am doing is first add an activity to the
problem_activities table (which has problem_id as one of its field) and
if there is attachment for that activity, that is added to
problem_activity_attachments table (which has problem_activity_id as one
of its column)


def pb_activity_attach_file
    @problem=Problem.find(params[:id])
       ActiveRecord::Base.transaction do
        @pb_activity=ProblemActivity.new(params[:pb_activity])
        @pb_activity.problem_id= params[:id]
        save_result=@pb_activity.save!
        if !params[:pb_activity_attachment][:attachment].blank?
          if save_result
                @pb_activity_attachment=ProblemActivityAttachment.new(params[:pb_activity_attachment])
@pb_activity_attachment.problem_activity_id=@pb_activity.id.to_i
@pb_activity_attachment.save!
           end
        end
      end #end of transaction
          @pb_activities=@problem.problem_activities.pb_activities_paginate(params[:page])
   responds_to_parent do
      render :update do |page|
     page[:pb_create_activity_ui].replace :partial =>
"problem_part/view_pb_activity_details", :object => @pb_activities,
:object => @problem
      end
    end #respond_to do end
  end
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