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i have a rails app with a form that allows uploading an image file. I take the image file and read it into rmagick to verify that it''s an image. For some reason I can''t catch an exception thrown by rmagick inside the app. After an invalid image file is uploaded the process just hangs. I have to kill mongrel and restart to use the app again. img =

Any jQuery users out there? I would like to learn more about incorporating jQuery with Rails as the performance seems to be the best of any library I''ve seen and it is great in separating the JScript from the HTML. Any suggestions on where to get started? I''ve read this (http://b.lesseverything.com/2006/12/31/making-jquery-and- prototype-play-nice-in-rails) but was looking into

Hi, One of my model generates short messages that has to be delivered to mobile phones as SMS''s. I am not sure how to proceed from here. 1. What are the components I would need? 2. Do I need a GSM modem? If yes how would it integrate with my app? 3. Does my hosting provider needs to have a GSM modem? 4. Does sending an SMS cost anything? If yes how much would a single SMS cost? Any

Can someone clear up this issue with file uploads for me? I have the code from Mongrel Upload Progress ( http://mongrel.rubyforge.org/docs/upload_progress.html) running, but I''m a little confused at how to integrate this into my app. Should I roll the controller methods in the controller I want to use or do you handle the file uploads and then somehow push the rest of the form data to

Is there anything in the mix to add :class, :id etc html_options to the select_hour and select_minute methods? I found this post, http://groups.google.com/group/rubyonrails-talk/msg/fcc4907eee2bfd33?dmode=source, dated late January that touches on the subject. I''m curious if this is an issue in the current rails development. Anyone have any info?

Considering an object with several has_many :through => associations, what is the ''best'' way to handle validations? As an example: class Student < ActiveRecord::Base # some attrbutes like # :name # :grade # relationships has_many :students_assignment, :dependent => :destroy has_many :assignments, :through => :students_assignment has_many