I am trying to model a publications. A publication can have multiple authors and editors. Since it is possible that one person is an author of one publication and an editor of another, no separate models for Authors and Editors: class Publication < ActiveRecord::Base has_and_belongs_to_many :authors, :class_name=>'Person' has_and_be...
I know that is a very embracing question, but I have just started with Ruby on Rails, and still have a long way with CSS and HTML. There are lots of books about CSS and HTML patterns, but I would like to know what is really applied to actual webpages. For example, what's the best way of doing a simple webpage with a lateral menu, a logo...
Given the following code which creates an and condition, how do I make it create an or condition instead? Country.first(:conditions=>{:media_code=>country_code, :code=>country_code}) ...
I would like to write a module that provides active record like functionality on an array instance variable. Examples of its use would be x = Container.new x.include(ContainerModule) x.elements << Element.new x.elements.find id module ContainerModule def initialize(*args) @elements = [] class << @elements def <<(e...
I have a nested form with the following models: class Incident < ActiveRecord::Base has_many :incident_notes belongs_to :customer belongs_to :user has_one :incident_status accepts_nested_attributes_for :incident_notes, :allow_destroy => false end class IncidentNote < ...
A certain function in my controller takes a lot of time to process (heavy db work) . So when my user clicks on "submit" on the form he has to wait for the process to complete which is quite long. Is there any way that on "submitting", the user is redirected to the next view without any delay while the processing continues in the back-end...
As the title says: how can I use the Restful Authentication Plugin with Ruby on Rails. When I want to create a new user, it requires me to set the (wrong-named, confusing field) login (= username), email address and password. However, I want, like Facebook does, to require the user to enter only an email address and password, not a usern...
I am using ruby on rails 2.3.5 . I have user instance. On run time depending on certain conditions I want to add an after_save callback just for this instance. The other issue is that this after_save should take a block or a proc as parameter. What I want is something like this. This is psuedo code. user = User.first proc = Proc.new...
Often three (or more) way associations are needed for habtm associations. For instance a permission model with roles. A particular area of functionality has many users which can access many areas. The permissions on the area are setup via roles (habtm) The user/roles association is also habtm The permissions (read, write, delete, etc...
I've been working on a piece of software where I need to generate a custom XML file to send back to a client application. The current solutions on Ruby/Rails world for generating XML files are slow, at best. Using builder or event Nokogiri, while have a nice syntax and are maintainable solutions, they consume too much time and processing...
I’m in the process of creating a large single-page web-app using ext-js for the UI components with Rails on the backend. I’ve come to good solutions for transferring data using Whorm gem and Rails support of RESTful Resources. What I haven’t come to a conclusion on is how to structure the UI and business logic aspects of the applicatio...
I am importing data from a CSV file. One of the fields has an accent(Telefónica O2 UK Limited). The application throws en error while inserting the data to the table. PGError: ERROR: invalid byte sequence for encoding "UTF8": 0xf36e6963 HINT: This error can also happen if the byte sequence does not match the encoding expected by the ...
Hi, I having a hard time to consume this webservice https://www.arello.com/webservice/verify.cfc?wsdl in my rails application. I successfully generated the ruby files with the wsdl2ruby.rb but when un run the generated script I get the following error: at depth 0 - 20: unable to get local issuer certificate OpenSSL::SSL::SSLError: SSL_...
With a quick Google search, one can find literally hundreds of examples for contact forms using PHP and/or JavaScript, but there don't seem to be any "ready-made" contact forms for Ruby on Rails. Do they exist? What do you use for contact forms in your Ruby on Rails apps? ...
I've been googling for a while to try and convert and incoming XML request into an active record object. I've tried using the ActiveRecordObject.new.from_xml method but it doesn't seem to handle relationships. For example, say I have the following xml: <blog> <title></title> <blog-pages> <blog-page> <page-number></page-nu...
I have several PDF files stored in Amazon S3. Each file is associated with a user and only the file owner can access the file. I have enforced this in my download page. But the actual PDF link points to Amazon S3 url, which is accessible to anybody. How do I enforce the access-control rules for this url?(without making my server a prox...
I am not a professional web developer, but I like to wrench on websites as a hobby. Recently, I have been playing with developing a Rails app as a project to help me learn the framework. The goal of my toy app is to harvest data from another service through their API and make it available for me to query using a search function. Howeve...
In Rails 3 (beta 3 on 1.8.7), when calling to_json on a relation i get a circular reference exception. Converting that relation to an array first, and THEN calling to_json works. Code That fails: Model.where().to_json (Where model is any model in your Rails 3 app) Code that works: Model.where().to_a.to_json This can be reproed on th...
I'm getting this weird error on my windows 7 computer when I am using the html2haml command with Haml 3 and Rails on Ruby 1.9: -- control frame ---------- c:0017 p:-9593720 s:0052 b:0052 l:000051 d:000051 TOP c:0016 p:---- s:0050 b:0050 l:000049 d:000049 CFUNC :require c:0015 p:0026 s:0046 b:0046 l:000045 d:000045 TOP C:/Ruby/lib/ru...
I am using paperclip to handle my file uploads, and in one situation I don't want the file to be mandatory. I do however want to make sure it is a specific file type when it is present. I have this: class TestModel < ActiveRecord::Base #stuff has_attached_file :sound #etc... validates_attachment_content_type :sound, :conten...