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Search found 118 results on 5 pages for 'petr macek'.

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• Math: How to sum each row of a matrix

  - by macek

  I have a 1x8 matrix of students where each student is a 4x1 matrix of scores. Something like: SCORES S [62, 91, 74, 14] T [59, 7 , 59, 21] U [44, 9 , 69, 6 ] D [4 , 32, 28, 53] E [78, 99, 53, 83] N [48, 86, 89, 60] T [56, 71, 15, 80] S [47, 67, 79, 40] Main question: Using sigma notation, or some other mathematical function, how can I…

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• Problem with url_for and named routes in ActionMailer View: "Need controller and action"

  - by macek

  I'm attempting to provide a confirmation link in my user welcome email and I'm getting the following Rails error: Need controller and action! It makes a fuss about this line: <p>Please take a moment to activate your account by going to: <%= link_to confirm_user_url(:id => @user.confirmation_code) %>.</p> In my…

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• Ruby File IO question; Maintain file read position between script executions

  - by macek

  I have two files a.txt and b.txt (henceforth a and b). My script iterates through a, does some operation, and potentially inserts a line to b. In the event the script stops, I need it to pick up where it left off. In the example below: foo was copied to b bar was copied to b zim was not copied to b (did not pass some criteria) gaz…

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• Encode mail as quoted-printable before sending in Rails

  - by macek

  I saw this question and couldn't make use of it: http://stackoverflow.com/questions/1034135/ruby-email-encoding-and-quoted-printable-content My email is going out as unencoded text/html. Any help? class UserMailer < ActionMailer::Base def welcome_mail(user) recipients user.email from …

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• has_many through a habtm relationship in Rails

  - by macek

  I'm trying to define a has_many X, :through => Y where Y is a habtm relationship. Rails is throwing a fit about this. See comment in user model: class User < ActiveRecord::Base has_many :posts # I want to display a list of all tags this user is involved in has_many :tags, :through => :posts # ERROR end…

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• Docs for auto-generated methods in Ruby on Rails

  - by macek

  Rails has all sorts of auto-generated methods that I've often times struggled to find documentation for. For example, in routes.rb, if I have: map.resources :projects do |p| p.resources :tasks end This will get a plethora of auto-generate path and url helpers. Where can I find documentation for how to work with…

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• I want multipart/alternative; ActionMailer only sending text/html

  - by macek

  I'm following the Ruby on Rails Guide: ActionMailer Basics Section 2.7 Snippet: Action Mailer will automatically send multipart emails if you have different templates for the same action. So, for our UserMailer example, if you have welcome_email.text.plain.erb and welcome_email.text.html.erb in…

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• How to make a jQuery plugin (the right way)?

  - by macek

  I know there are jQuery cookie plugins out there, but I wanted to write one for the sake of better learning the jQuery plugin pattern. I like the separation of "work" in small, manageable functions, but I feel like I'm passing name, value, and options arguments around too much. Is there a way this…

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• Arbitrary precision arithmetic with Ruby

  - by macek

  How the heck does Ruby do this? Does Jörg or anyone else know what's happening behind the scenes? irb(main):001:0> 999**999 …

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• Adding RESTful route to Rails app

  - by macek

  I'm reading these two pages resources Adding more RESTful actions The Rails Guides page shows map.resources :photos, :new =>…

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• Problem with url_for in ActionMailer template

  - by macek

  I'm attempting to provide a confirmation link in my user welcome email and I'm getting the following Rails error: Need controller…

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• Anything like bpython for Ruby?

  - by macek

  IRb is pretty plain compared to bpython, even when using wirble. Is there any ruby equivalent of bpython?

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• How to get change history for a specific file in git repository

  - by macek

  I would like to do something like: git history my_file possible output 2010-05-16 + add this line + more code here 2010-05-15…

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• How to split a Ruby array into X parts

  - by macek

  I have an array foo = %w(1 2 3 4 5 6 7 8 9 10) How can I split or "chunk" this into smaller arrays? class Array def…

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• Test Driven Development (TDD) with Rails

  - by macek

  I am looking for TDD resources that are specific to Rails. I've seen the Rails Guide: The Basics of Creating a Rails…

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• How can I use Ruby to check if a domain exists?

  - by macek

  Something along the lines of: def domain_exists?(domain) # perform check # return true|false end puts "valid!"…

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• What do you consider the best CMS in Java

  - by Petr Macek

  Which CMS are you using in Java and what is your experience with it (in terms of extensibility, usage comfort,…

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• Calculate sum of objects for each unique object property in Ruby

  - by macek

  I was helping with an answer in this question and it sparked a question of my own. Pie is an object that has…

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• Send SYN packet in C#?

  - by Petr

  Hi, I am wondering whether it is even possible or I cannot do such a raw socket manipulation? If so, how can I…

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• Persistent workflow with durable delay activity hosted in ASP.NET

  - by Petr Felzmann

  The situation: a workflow hosted in ASP.NET application using WorkflowServiceHost and contains durable delay.…

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• Workflow Foundation: How to create Receive activity with custom message in xaml designer?

  - by Petr Felzmann

  I need to have Receive activity which can receive my custom data. I found examples, but all use coded…

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• .NET projects build automation with NAnt/MSBuild + SVN

  - by petr k.

  Hi everyone, for quite a while now, I've been trying to figure out how to setup an automated build…

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• Stack & heap understanding question

  - by Petr

  Hi, I would really appreciate if someone could tell me whether I understand it well: class X { …

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• How to force PyYAML to load strings as unicode objects?

  - by Petr Viktorin

  The PyYAML package loads unmarked strings as either unicode or str objects, depending on their…

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• Parsing multibyte string in PHP

  - by Petr Peller

  I would like to write a (HTML) parser based on state machine but I have doubts how to…

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