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When I first started using Rails, actionmailer set email header values by assigning values to instance variables within a model method. There were some specific instance variables such as ''subject'', ''from'', etc. Header values for which there was no specific instance variable assigned could be set using the @headers hash. This hash could be used to set the

I''m trying to setup a mongrel cluster. I''m relying on information collected from a number of sources but I''m relying heavily on http://mongrel.rubyforge.org/docs/apache.html. I have noted that a number of sources mention the necessity of having the mod_balancer module installed in Apache. However, my primary source makes no mention of this; but instead, mentions only

The following short console session illustrates the problem: Loading development environment (Rails 2.3.2) >> topic=BlogTopic.find(4) => #<BlogTopic id: 4, parent: 2, topic: "Topic Four", created_at: "2009-07-13 21:31:22", updated_at: "2009-09-14 00:37:29"> >> topic.inspect => "#<BlogTopic id: 4, parent: 2, topic: \"Topic

Suppose that I want to have a block of default content within a template that is replaced with the content of a specific partial only if that partial exists. Obviously there is the brute force approach of simply rendering the default content unless the relevant partial file exists in which case the relevant partial is rendered instead. I suspect that there may be a more elegant way to skin this

I''m trying out Action Mailer for the first time. I''m not getting to first base. I thought that the instructions were pretty clear in that the first thing that I needed to do is to add: config.action_mailer.delivery_method = :smtp | :sendmail | :test to config/environment.rb (assuming that I want to use the same configuration for development, testing, and production). So, I

Hi -- I have setup a fairly simple Rails site. It uses a layout and 4 clustered instances of Mongrel running on ports 8001 through 8004. The instance of Mongrel running on port 8001 seems to work perfectly. For some reason, the other 3 instances Mongrel are behaving as though they don''t see the layout. Does anyone know why that is; and, more importantly, what to do about it? Thanks.

I am running a Mongrel cluster with an Apache front-end. I am loading the following modules in the httpd.conf file: LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_connect_module modules/mod_proxy_connect.so

I have written a helper to upload a file using the http protocol. It''s only two lines long; and, for the most part, it works just fine. However, when the uploaded file is written, it has root as the owner and group. I would really like it to have a different owner and group. It would seem that that would be almost trivial. Since the uploaded file is written with root as the owner and

1. I have seen examples similar to the following: image = MiniMagick::Image.from_file("input.jpg") image.resize "100x100" image.write("output.jpg") I''m assuming that image.resize is a method. Is there any significance to the fact that the argument for that method is not enclosed in parenthesis while the other are? Examples seem to be consistent --

I am using XmlSimple to parse an XML string received from a remote host. I am getting the error message, "File does not exist: .". I am fairly well convinced that the problem is that XmlSimple is not recognizing the received XML string as being valid XML and is therefore looking for a file by that name (which, of course, does not exist). The XmlSimple documentation says that it

I''ve been trying to interface to the onlineNIC API which uses sockets. The following 4 lines of test code illustrate my problem: socket=TCPSocket::new(''ip'',''port'') puts("Connect:\n"+socket.read()+"\n\n") socket.print(login_request) puts("Login:\n"+socket.read()+"\n\n") In the actual code the real IP address and

I understand that ActiveSupport::OrderedHash.new [[1,2]] does not work beginning with Rails 2.3. I am running Rails 2.3.2. One commentator suggested simply creating the instance without arguments and then sequentially adding each element as a separate step. I tried that. The hash gets populated just fine but it is not ordered. Can anyone please tell me what the magic trick is under

Hi -- I have imagemagick and rmagick installed so that I can produce images from code to a file. Can anyone direct me to where I can find guidance on how to have those images included on a web page (e.g., <img src="my_dynamically_generated_image") instead of having them sent to a file? Thanks for any input. ... doug --~--~---------~--~----~------------~-------~--~----~ You

If I understand things correctly, by default, Rails expects both the ActiveRecord class name and the model name (i.e., the name of the file that contains the definition of the ActiveRecord class) to be the singluar of the table name. How can I override this default behavior with respect to the model name? That is, I would like to have the file name of the file that contains the definition of the

Let''s say, for example, that I want to create an order form and that I want to assign an order number to each submitted order form for tracking purposes. So, I create a little file to store the latest number. Then when a new order comes in, I grab that number, increment it by one, assign the incremented number to the order, and finally replace the number that''s in the file with

If I have a form that includes something like: <input type="file" name="file_content" /> and I try to get at the file content using: params[''file_content''].read I get: undefined method `read'' for "filename":String where "filename" is the *NAME* of the file that was assigned to "file_content" in the input tag.

I have used Action Mailer to collect data from a form and send it to a recipient. Rather than hard-code things like the subject, recipients, and return address into the model, I would like to include that information in hidden fields in my form thereby causing that information to be included in the params hash. My question is: How can I access that information from the params hash in the model?