similar to: Extracting images from a DB

Hi all-- I''m starting a new Rails project and I''m preparing to import it into my local Subversion repository. In the past, I''ve just imported the entire set of files generated by ''rails'', but I''m starting to wonder if that is the best way to approach things. For instance, it makes sense to add the log/ directory, but probably not the

I am trying to write a plugin, ''acts_as_commentable'', for my models - Image, Book, Music and so on, I do not want to use polymorphic association, so very model should have its own comment class. Here is my code acts_as_commentable.rb module Commentable def self.included(base) base.extend(ClassMethods) end module ClassMethods def

On my website people will be able to upload images of themselves. I was wondering how people are presently handling uploading, resizing and optimizing images in Rails? Do you use a specific piece of software to do it? What would you guys recommend? Any code from RailsDay? :-) Also, do you guys store the images in the DB or just as files? What do you suggest? What are the pros and

I''m having some trouble with an instance variable being read as nil in my app. I have an image uploading, that can be added to categories. The page loads up initially fine, and if I upload an image without errors everything works fine. I''m working on the validation, but with the code I have if their are validation errors it renders ''new'' again, but reads

I know this is dumb, but I can not set a session variable. I get the followig error: Processing Base#edit (for 67.174.108.88 at 2006-06-28 17:17:34) [GET] Session ID: 3c4b2bad18c8bc289b719dc056913be7 Parameters: {"action"=>"edit", "id"=>"11", "controller"=>"image",

Hi, I have a rails application where I respond to a request by fetching image urls from various web api calls and need to display them as they come available. I am able to display all the images once I get them all, but that causes an unacceptable delay for my user. One approach I am trying is, from my controller, set an @image variable, and then pass in a block to the model that retrieves the

Hi Guys, Does anyone know how to restrict access on files that you upload in file column to certain users only? I notice that files being saved by the file_column by default are being saved under the public folder and can be accessed just by typing the URL directly. Let''s say you have a Login system where you restrict access to some pages and allow those users to upload their own

This is probably me having an issue with the mvc way of living.. .I''m used to perl/php scripting... I''ve got a photo blog I''m making... and in past iterations of this website, I''d just name the photos after the id of the entry. For instance: /photos/id.jpg /photos/id_thumb.jpg However, I''m having trouble finding an easy way to do this with rails.

hi there! unfortunately, we are repeatedly having problems with uninitialized constants in our rails app (v1.1.6), which is running on a mongrel cluster behind apache''s mod_proxy_balancer. ---- snip ---- NameError (uninitialized constant Base): [...] /app/models/image.rb:90:in `subclasses'' /app/models/image.rb:98:in `subclass?''

I have a data frame with two columns: image pattern 1 http://$IMAGE_ID$ www.url.com/image.jpg 2 $IMAGE_ID$ http://www.blah.com/image.gif ... I want to replace "$IMAGE_ID$" with the corresponding entry in the pattern column such that the result would appear as follows: url http://www.url.com/image.jpg

Hi, I''m using SQL Server. I have a BIT field. I have a fix and a question. This is a patch for a bug in the SQL Server adapter that causes any insert or update to fail: lib/active_record/connection_adapters/sqlserver_adapter.rb @@ -239,2 +239,2 @@ - when TrueClass then (column && column.type == :boolean ? "''t''" : "1")

This is what I have class Photo < ActiveRecord::Base belongs_to :image, :polymorphic => true acts_as_list :scope => image end class Place < ActiveRecord::Base has_many :photos, :as => :image end class Child < ActiveRecord::Base has_many :photos, :as => :image end I want to be able to reorder the images. What I need is for the position of the photos to be set

I have this code in a controller that returns images to my browser...with ROR. def index @products = Product.find_all_ pictures end ....this is the .rhtml.. <% for photo in @pic -%> <div class="entry"> <img src="<%= photo.image_url %>"/> <h3><%= h(photo.title) %></h3> <%= photo.description %>

Hi all, finally im starting with rails, i have a simple relationship has_many ans belongs_to that i dont now how to manage the update action, here are my models class Item < ActiveRecord::Base has_many :images end class Image < ActiveRecord::Base belongs_to :item end And my table structure: Items => id, title, desc Images => id, image, item_id ok, i have a number of

I''m trying to display a generated .png plot via send_data(), but it results in a server error "invalid byte sequence in US-ASCII" error. I''m pretty sure this means that I need to specify the encoding somewhere, but I haven''t been able to figure out where or how to do so. Some particulars: I''m running gnuplot through a pipe to generate a plot in .png

Dears, Got a controller witch do a send_data for displaying a chart. like : send_data(g.to_blob, :filename => "any.png", :type => ''image/png'', :disposition=> ''inline'') I actually do a <img src="http://myhost:3000/stats/make_graph" /> Is there any way more clean to do that ? At minima don''t hardcode the beginning

Short question: is there way to tell EM to actually send data after send_data call? I''m building a file transferring app. I send Mashal.dump''ed metadata first, and then - the file contents (chunked). I found a silly bug: receive_data() gets marshalled metadata and the first chunk of the file in a single variable. Like that: c1.send_data("meta")

Hello, in the data.frame "resultsfuzzy" I would like to replace the characters in the second column ("5a", "5b", ... "5e") with numbers from 1 to 5. The data.frame has 39150 entries. I seems to work on samples that are << nrow(resultsfuzzy) but it takes suspicously long. Do you have any suggestions how to make the character replacing more

Can someone please help me with this. I have an Images table :- create table images ( id integer unsigned not null auto_increment primary key, image varchar(200) not null default '''' )ENGINE=InnoDB default CHARSET=latin1; And a car table :- create table cars ( id integer unsigned not null auto_increment primary key, user_id integer unsigned not null, title varchar(100) not

I''m trying to display an image in a view from MySQL, but I''m not sure where to put the send_data call. Any help would be great. :) -- Posted via http://www.ruby-forum.com/.