similar to: Caching & Attachments

Hi, I am using send_data to allow users to download files from the database but ran into a small problem, it seems that files upload fine but when they download only 64kb of the file is sent. I''m using the basic rails code from the Agile book: #upload code in my sheet model def file=(document_field) self.filename = base_part_of(document_field.original_filename)

I need to store rather large data in the database using blobs. I''ve been working with Rails and have designed a proof-of-concept setup that works pretty well, except there''s a considerable performance hit with very large files due to the fact that ActiveRecord loads the entire blob into memory before the data can get passed to send_data. I know at least one person is going

I am trying to upload word docs to an image column. I followed the cookbook for how to upload files and it works on a MySQL db (upload and download) on SQLServer however I get the following error DBI::DatabaseError: Execute OLE error code:80040E07 in Microsoft OLE DB Provider for SQL Server Operand type clash: text is incompatible with image HRESULT error code:0x80020009 Also I when

I don''t know why this isn''t working. If I download a word doc that I uploaded, all I get is the S3 file path in the document. If I access the s3 file path directly in my browser, it downloads the file correctly. Here is my controller method: def download @curriculum = @school.curriculums.find(params[:id]) send_data @curriculum.attachment.public_filename, :filename

Hi: I have moved from using attachment_fu with files stored in the DB to Paperclip using S3. The trick now is to migrate the files from the DB to S3. I have tried a few methods like: SThreeFile.create(:file => AttachmentFuFile.first.data) and @attachment = AttachmentFuFile.first SThreeFile.create(:file => ActionController::Streaming.send_data @attachment.data, :filename =>

Guys & gals, I''m also learning RoR (using v2.3.4). I''ve got a basic scaffold working for image file creation, and - to a point - image file display. The send_data function is working in my controller - no problem. The model code is able to parse the uploaded file construct too. def show @image = Image.find(params[:id]) send_data(@image.binary_data, :type =>

I found the post about needing to install acts_as_attachement_1_1_6 if you are not on edge rails. But I am having trouble getting db_system storage to work. As far as I can tell in from the database, things are working, but I don''t see how my model table hooks up with the db_files table so I am having trouble altering the image_tag from the tutorial

Okay, so this is driving me crazy. I''m trying to do a file upload using code from a book. What happens: I get wrong number of arguments (1 for 0) in the upload controller save action. No idea why. Schema: The schema for the picture model object is just a textfield named comments and a binary field called data. Upload controller: def get @picture =Picture.new end def save

I''m having trouble serving images which I have saved as db_files with attachment_fu. I use this code to serve the images: Controller -- class PhotoController < ApplicationController def image @photo=Photo.find(params[:id]) send_data(DbFile.find(@photo.db_file_id).data, :type => @photo.content_type, :filename =>

I have a system that requires login. This is for administrative purposes, so the pages will be the same as the public ones, except they will have the edit|delete|new options. Right now, I have: caches_action :index which works great, but I''d like: caches_action :index unless user? where user?() is defined in application.rb. I get an exception using this construct. Can anyone help?

Is anyone sucessfully reading email attachments? I have had some luck in my local dev environment but only get partial files on my hosted server (TxD) and then only sometimes. I use something like this.... Net::POP3.start("widespreadsolutions.com", nil, "briefcase", "y902xas") do |pop| if pop.mails.empty? logger.info "NO MAIL" else

Hello, I''m converting my 2.3.8 application to 3.0.7 and have run into a snag with forwarding emails from the app with an attachment. The attachment appears in the email as 1 byte in size and thus corrupt. The actual file is fine and Rails seems to have access to the file. I''ve tried multiple permutations but here''s what I''m doing... I''m fetching email

Hi guys, I have a hard time with action mailer and TMail, I always get the following error... My code: << pop = Net::POP3.new(''pop.mydomain.com'') pop.start(''xxx'', ''xxxxx'') # (1) if pop.mails.empty? puts ''No mail.'' else i = 0 pop.each_mail do |m| # or "pop.mails.each

I''m running rails 2.0.2. I am trying to send an email using the ActionMailer. The email is delivered when sending with or without an attachment. My problem is that when I send an attachment, the body of the email is blank. I only get an email with an attachment. I''ve tried a couple different ways using the attachment method: attachment :content_type =>

Hi folks - Seeing a weird problem and would love some help. It''s documented in http://pastie.org/278310 to be more readable. In short, I have a caches_page "action", :if => {stuff} but the :if is never being called - the action is just caching every time. (If I put a debugger call in the :if block, it never stops.) If I replace caches_page with caches_action, the if

After creating a table in a create table migration, I''m then attempting to populate a couple of rows of data in the table using the create method. The first row gets inserted into the database, but any further calls generate a select against the database, but no insert. Am I doing something wrong, or is it inappropriate to create more than a single row of data in a table using

Hello all, I am running a blog system which has its "/" (home page) cached like this: class ApplicationController < ActionController::Base before_filter :index_cache_expirer, :only => [:index] caches_action :index so the site''s top page is caches for 60 seconds in my case (index_cache_expirer is a home-made function to expire) on the site, there is also a

Hello, I have a method called "check_permission" that is set to run as a before_fitler and which checks if a user has the authorization to view a page. This page is displayed through the method "show" which is cached through the tag "caches_action :show" My problem is that once a user with authorization to a page accesses it, then afterwards all users (with or

I have action caching setup for several actions of an application but I want the caching to only run for my administrators and have all other users see non-cached pages. Is there a way to do this? Perhaps something like passing a block to caches_action or setting some sort of flag in my authentication method? If this is not possible with action or fragment caching does anyone know of a

Caching computation in rails? Simple example: factorial modulus a large number input: integer x output: factorial( x ) % 12345678901234567 I want it so that if it computes factorial of N once, it will not have to compute for N again. code: class SiteController < ApplicationController caches_action :factorial, :inv def examine @inv = @params[''inv''] @outv =