There are many places in my application where I need to generate links with unique tokens (foo.com/g6Ce7sDygw or whatever). Each link may be associated with some session data and would take the user to some specific controller/action. Does anyone know of a gem/plugin that does this? It's easy enough to implement, but would be cleaner ...
I have a large XML file which in the middle contains the following: <ArticleName>Article 1 <START </ArticleName> Obviously libxml and other XML libraries can't read this because the less-than sign opens a new tag which is never closed. My question is, is there anything I can do to fix issues like this automatically (preferably in Rub...
Hi, Is there any body can confirm the description here is true? My experience is that I can not use Example::Vector.new at all. C/C++ structs are wrapped as Ruby classes, with accessor methods (i.e. "getters" and "setters") for all of the struct members. For example, this struct declaration: struct Vector { double x, y; }...
Hello, i am using haml with my rails application and i have a question how the easiest way to insert this haml code into a html file: <div clas="holder"> <div class=top"></div> <div class="content"> Content into the div goes here </div> <div class="bottom"></div> </div> And i want to use it in my haml document like this: %ht...
I'm really tired of typing my_ar_object.errors.full_messages in my console when i'm testing things... So, I want to define this: module ActiveRecord class Base def err errors.full_messages end end end in my ~/.irbrc so that it is exclusive to script/console. I don't want to define it in some rails initializer since...
Is there a way to select all the contents of a node in Nokogiri? <root> <element>this is <hi>the content</hi> of my æøå element</element> </root> The result of getting the content of /root/element should be this is <hi>the content</hi> of my æøå element Edit: It seems like the solution is simply to use myElement.inner_html(). Th...
I read a chapter in a book (Seven languages in Seven Weeks by Bruce A. Tate) about Matz (Inventor of Ruby) saying that 'I would remove the thread and add actors, or some other more advanced concurrency features'. Why and how an actor model can be an advanced concurrency model that replaces the threading? What other models are the 'adv...
In ruby to catch an error one uses the rescue statement. generally this statement occurs between begin and end. One can also use a rescue statement as part of a block (do ... end) or a method (def ... end). My question is what other structures (loop, while, if, ...) if any will rescue nest within? ...
Hello. I'm trying to figure out if there is an easy way to do the following short of adding to_i method to TrueClass/FalseClass. Here is a dilemma: I have a boolean field in my rails app - that is obviously stored as Tinyint in mysql. However - I need to generate xml based of the data in mysql and send it to customer - there SOAP serv...
I am having trouble including a module in a namespaced class. The example below throws the error uninitialized constant Bar::Foo::Baz (NameError). What basic piece of Ruby knowledge am I missing here? module Foo module Baz def hello puts 'hello' end end end module Bar class Foo include Foo::Baz end end foo = ...
It's been a while since i dipped into Ruby on Rails and i'm having a hard time getting data into my model, here's what the server is saying when i submit my form: Processing ScoresController#index (for 127.0.0.1 at 2010-03-26 15:31:44) [POST] Parameters: {"commit"=>"Add", "authenticity_token"=>"326dd05ffa596bfa12ec3ebb6f48933dbad8dc...
Background: i'm using InstantRails 2.0 I wanted to add a new column to an existing table using the following syntax: ruby script/generate migration add_fieldname_to_tablename fieldname:string So I tried ruby script/generate migration add_invites_to_user invites:integer ruby script/generate migration add_invites_to_users invites:inte...
Hi guys, I'm trying to start Sunspot's solr server on my ubuntu workstation and server. So far I'm tried in the crontab @reboot sh -c 'cd /<location of rails program>/; rake sunspot:solr:start' and @reboot sunspot-solr start -d <options> -s <options> -p <port-num> Neither are able to start the server at reboot. Thoughts? Thanks, ...
My Rails app has a normal ActiveRecord "Account" model stored in the database. The model will store the URL to a remote XML file which defines some other objects. For example, the Account has_many :galleries but the Gallery model is simply defined by nodes in the XML document. So how do I get /accounts/1/galleries to show the galleries...
I've used PPerl for deamon like processes. This program turns ordinary perl scripts into long running daemons, making subsequent executions extremely fast. It forks several processes for each script, allowing many proceses to call the script at once. Does anyone know of something like this for ruby? Right now I am planin...
Hi there, I'm trying to merge a hash with the key/values of string in ruby. i.e. h = {:day => 4, :month => 8, :year => 2010} s = "/my/crazy/url/:day/:month/:year" puts s.interpolate(h) All I've found is to iterate the keys and replace the values. But I'm not sure if there's a better way doing this? :) class String def interpolate...
So I have been asked to help maintain a website that uses Ruby on Rails. Now, let me just say I've been programming Ruby for awhile but I am still new to Rails. The first problem brought to my attention is how the activation email takes about six hours to arrive. It would be one thing if the email was not being sent due to errors but ...
We are creating a rails application for an already existing database. We need to map some database tables together. Suppose we have three tables: event, event_groups and event_to_groups. There are some events, there are some groups, and each event can be assigned to one or more groups. How do I model this relation in rails? eg: Ex...
Greetings! When assigning a value to an array as in the following, how could I replace the nils by 0? array = [1,2,3] array[10] = 2 array # => [1, 2, 3, nil, nil, nil, nil, nil, nil, nil, 2] If not possible when assigning, how would I do it the best way afterwards? I thought of array.map { |e| e.nil? ? 0 : e }, but well… Thanks! ...
In Ruby, how do you call a class method from one of that class's instances? Say I have class Truck def self.default_make # Class method. "mac" end def initialize # Instance method. Truck.default_make # gets the default via the class's method. # But: I wish to avoid mentioning Truck. Seems I'm repeating myself...