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POTrouble adding a file stored on S3 through Paperclip as an attachment in ActionMailer
 

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  1. POTrouble adding a file stored on S3 through Paperclip as an attachment in ActionMailer
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    <p>I'm using Paperclip and S3 for file upload and storage in a Rails 3 app. The uploading of the files is working well, but when trying to attach an uploaded file to an email message with actionmailer, I am running into issues. After a lot of troubleshooting, hopefully someone can offer a hint.</p> <p>From a high level, it seems like I may need to download the file first, with some kind of download method before attaching, which is suggested here but I do not quite follow on how to implement - <a href="https://stackoverflow.com/questions/4356936/paperclip-actionmailer-adding-an-attachment">paperclip + ActionMailer - Adding an attachment?</a></p> <p>In the app, after a user uploads a file (a Quiz in this case), the admin should be notified via email with the file that was uploaded by the user. I keep running into a "No such file or directory". Below is the code I am working with right now. Any ideas or suggestions would be much appreciated!</p> <pre><code>Quiz.rb model - what users are uploading: class Quiz &lt; ActiveRecord::Base attr_accessible :quiz_path, :user_id, :tutorial_id validates_presence_of :quiz_path validates_attachment_size :quiz_path, :less_than =&gt; 50.kilobytes validates_attachment_presence :quiz_path validates_attachment_content_type :quiz_path, :content_type =&gt; ["application/pdf","application/vnd.ms-excel", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"], :message =&gt; 'We only accept Microsoft Excel files ending in .xlsx or .xls' belongs_to :user belongs_to :tutorial has_attached_file :quiz_path, :storage =&gt; :s3, :s3_permissions =&gt; :private, :path =&gt; "quizzes/:attachment/:style/:id.:extension", :storage =&gt; :s3, :s3_credentials =&gt; { :access_key_id =&gt; ENV["AWS_ACCESS_KEY_ID"], :bucket =&gt; ENV["S3_BUCKET_NAME"], :secret_access_key =&gt; ENV["AWS_SECRET_ACCESS_KEY"] } end </code></pre> <p>The AdminMailer class:</p> <pre><code> class AdminMailer &lt; ActionMailer::Base default from: "info@mydomain.com" def admin_upload_notification_email(quiz, current_user) @url = "http://mydomain.com" @quiz = quiz @user = current_user mail(to: "me@mydomain.com", :subject =&gt; "New Upload From #{@user.email}") attachments["#{quiz.quiz_path_file_name}"] = File.read("{quiz.quiz_path.expiring_url(60)}") end end </code></pre> <p>Also adding the QuizzesController:</p> <pre><code>def create @user = current_user @quiz = @user.quizzes.create(params[:quiz]) respond_to do |format| if @quiz.save UserMailer.upload_notification_email(@user).deliver AdminMailer.admin_upload_notification_email(@quiz, @user).deliver format.html { redirect_to @user, notice: 'Your skill assessment answer file was successfully uploaded. We will review your responses and email you a link to your results as soon as possible.' } format.json { render json: @user, status: :created, location: @quiz } elsif @quiz.errors.any? flash[:error] = 'Please make sure you selected your answer file and it ended in ".xlsx".' return(redirect_to :back) else format.html { redirect_to @user, notice: 'No file was selected. Please back and choose "Select Your Answer File" before submitting.' } format.json { render json: @quiz.errors, status: :unprocessable_entity } end end end </code></pre>
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