search for: rails001

What is the new way to check if a parent has child items? In rails 1.2.6 I did this: if @client.has_line_items? Client being the parent and line_items the children. Now that I have upgraded to rails 2.0.1 (on my way to current :-) ) I am getting this message: undefined method `has_line_items?'' for #<Client:0x7f3b093b01a0> How should I format the query now? Regards, Paul

Hi, I have a catalog that has images in it. The images are stored in public/images/.... When I open the catalog via the catalog controller I get this url: http://127.0.0.1:3000/images/sow/sow.jpg for the images and they display correctly. When I link to the catalog from another controller and view I get this: http://127.0.0.1:3000/catalog/images/sow/sow.jpg If I attempt to put and image

Hi, I am a COBOL programmer and I am busy teaching myself Rails and Ruby. In COBOL I can code this conditional If x = 1 next sentence else .......................... The "next sentence" statement enables me to get out of the conditional. How would I code the same thing in Ruby? In C you could use break but I understand that Ruby has no break statement. Regards, Paul

I have upgraded from 1.2.6 to 2.0.1 and successfully passed all my test and manual testing. Everything seems to be working correctly. My application is pretty vanilla and so there where few complications. Question is, should I do another point upgrade (and if so, which point to upgrade to next) or is it safe (and prudent) to just go straight on to the current version (2.3.x). Advise would be

Is it possible to create an action that would sent a view straight to a printer or a button of some sort that would enable the view to be printed. Currently the user has to click on file and then on print in the browser to print. My users would like to be able to click on a link or button and have the view printed. Is such a thing possible? And how would one do it? Thanks, Paul

Hi, I have this in my form <%= check_box_tag(@accept, value = "1", checked = false) %> Which puts a nice checkbox on my form but when I try to retrieve the value that is returned, which I expect to find in @accept, there is nothing. How do I check the returned value? Thanks, Paul Thompson

Hi, I would like to put a checkbox on a form where the input field is a variable rather than a field in a model. The normal way (with a model) would be: <%= check_box(''client'', ''accept'', {}, "1", "0") %> But since accept is a variable @accept and model client will not be there, how do I make a check box work? Regards, Paul

Hi, I am not sure if this is a general web question or a Rails specific one but either way, I would really appreciate help and guidance. My application generates quotes. To do so, you start at a page that has the client details. From there you go to a catalog (a link on the quote page) and select the items that are to be in the quote. All the above is working just fine. My problem is that when

Can anyone please advise me what is involved in up grading a project from version 1.2.6 to current (2.3.5). The project is pretty much vanilla code and does not use plugins. Are there scripts that can do the job (or pull out incompatibilities). Any websites or blogs that point the way or should I just bite the bullet and rewrite? Reason for wanting to upgrade is that I now do want to add features

Please, can somebody tell me how to pass a variable from controller A to controller B. I am going crazy trying to work it out but I am not getting anywhere. This has got to be a simple thing, only my ignorance is holding me back! Thanks, Paul

I want to read through all the child records for a given parent. What would be the correct way to do this? Advise would be most welcome. Regards, Paul

Hi, I have a view that I use to display and capture data. Once the user has input the required data, I then need to be able to print the view. I know that I can setup a stylesheet to take care of the page layout but it is not clear to me how I will make the print view call the new layout. If anyone could clarify this or point met in the right direction, I would be most grateful. Regards, Paul

Hi, I want to put a mail_to link in my views, where the recipient is a variable stored in the database. It is not clear to me how I would do this from reading the docs. Could someone please explain or point me in the right direction. Thanks, Paul

Hi, I have two tables and they have a one to many relationship I want to display the contents is a browser. Parent with its children beneath it. How do I do this. I am a rails (and Ruby nuby) so am pretty ignorant. Regards, Paul

Hi it''s Noobie Thompson, new to linux and to rails. Has anyone configured Lighttpd with fastcgi to run rails on Ubuntu? I am useing Dapper (flight 5). I have php5 with php5-cgi (downloaded via Synaptic). I have got lighttpd installed and running but I am unable to get the fastcgi/rails side going. I get message to the effect that I must recompile php with Fastcgi enabled. Can anyone help

Hi, this is probably not strictly a Rails or Ruby question but I hope that someone here can answer it or at least point me in the right direction. 1. When you click on a link to ''B'', within a long page ''A'' (IE. one that is bigger than the browser window so you need to scroll to navigate it) When you return from ''B'' via a link (to

Has anybody succeed in getting Rails 3 to work in production? I am trying with Apache 2.2 and Passenger 2.2.12 but no luck. If you have got Rails three to work in production on any server with any set up could you please post the details (howto?) or a link to where such information can be found. All input gratefully received. Paul Thompson -- You received this message because you are

Please can someone show me the correct syntax for a hidden field in forms, this is my code <%= start_form_tag :action => ''create'' %> <div class="form1"> <table width="auto" boader="8" cellspacing="5" cellpadding="5"> <% hidden_field ''line_item'', ''client_id'', :value

Hi, I am working through Agile Web Development with Rails and I am at pg 69 second last paragraph says "put some images in the public/images directory......" how do you code the link that is stored in the data base I have tried http:public/images/name .jpg with no avail I have tried the fully qualified address http://home/../../../../name.jpg also with no luck. How should I code this?

Hi, I am working thru the Ruby for rails book. On page 30 David Black talks about running erb from the command line i.e. $ erb erbdemo.rb just as you would a normal ruby prog ($ ruby erbdemo.rb) but when I try to do this I get command not found. How do I make this work? I am running Linux (Ubuntu Breezy) Regards, Paul