could somebody explain the code below for me? Only the lines where is #??? I asked and got an answer It does 100% what I asked for. Now I need to add some code and I do not know where. I tried and it did not work. I used custom class in ruby twice so far otherwise I used to use arrays. Is it actually custom class used below? :-) I nee...
MIME::Types.type_for(filename) What gem do I need to install, and what file do I need to require to use that? ...
I asked my question and got two answers one is piece of code and the other one is to use a library/module. I am wondering what is better to use. Does it actually matter? Is there any difference in speed, code update or in any other way? in my case the code is only a loop with 2 lines... My questions is more in general from somebody who...
I want to take an XML file (example is http://xboxapi.duncanmackenzie.net/gamertag.ashx?Gamertag=xpaulbettsx) and just turn it into a Ruby dictionary / ExpandoObject type thing, so I can do something like gamertag_info = HowDoIDoThisPart.load("Example.xml") puts gamertag_info.zone >>> "Underground" puts gamertag_info.recentgames >>> <Ar...
The following code defines a hash with regular expressions (keys) and replacements (values). Then it iterates over the hash and replaces the string accordingly. Simple string substitution works well, but when I need to compute the resut before substituting it (the case of years to days change), it does not. And it is key that the hash ...
I have removed and reinstalled ruby on my machine (windows 7, ruby 1.9.1). When I go to get rails again I get: While executing gem... File Exists C: Yet when I list my gems is says none are installed. What gives? ...
How can I de-activate the newer version of cucumber, or get this to work with the earlier version? user$ rake features (in /Users/user/Project) /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -I "/Library/Ruby/Gems/1.8/gems/cucumber-0.6.1/lib:lib" "/Library/Ruby/Gems/1.8/gems/cucumber- 0.6.1/bin/cucumber" --form...
Hello, Take this example: write_as_string { puts 'x' } I then want to be able to do def write_as_string(&block) puts block.to_s end When I execute this, I want the output to be: "puts 'x'" I want to be able to receive the block and get the actual code for the block instead of executing it. Motivation: Creating a DSL, I want...
Suppose I have two top-level tasks: task :publicBuild => [:zipSourceCode, :copyPrivateKey] task :internalBuild => [:copyPrivateKey] For the internalBuild task, I don't want to zip source code - I just want the private key. But for a publicBuild, I want to do both. But I need to guarantee that for the publicBuild, the zipSourceCode tas...
I just picked up Agile Web Development with Rails 3rd Ed., and I'm going thru the Depot Application chapters, I'm attempting to create a simple Edit quantity function, and delete function. I've had luck with the delete function but no luck with the edit quantity function. I'm going to provide a lot of information, so please don't feel ...
I'm going through the EdgeCase Ruby Koans. In about_dice_project.rb, there's a test called "test_dice_values_should_change_between_rolls", which is straightforward: def test_dice_values_should_change_between_rolls dice = DiceSet.new dice.roll(5) first_time = dice.values dice.roll(5) second_time = dice.values ...
I've been trying to send some test newsletter using my gmail account as smtp, but when i tried to send to multiple recipients - ['emai@[email protected], [email protected]'] - in this case the first email address is incorrect - it gives me an error 555 - 5.5.2 Syntax error and the process stops without passing through the next email add...
Hi, I installed Sphinx and Thinking Sphinx on ruby-on-rails 2.3.2 and on Windows 7 pc. First of all, if I run rake ts:start, it won't start at all. It keep saying "Starting..." and it never starts. Even though, the simple search(with no filtering nor conditions) works fine. When I try to add a filter, it won't return any record. My mo...
It is really hard to google this, because neither || nor 'or' are good words to search for :) I am wondering if there is a difference between the two, or if it is just a matter of preference? ...
I'm probably missing something obvious, but is there a way to access the index/count of the iteration inside a hash each loop? hash = {'three' => 'one', 'four' => 'two', 'one' => 'three'} hash.each { |key, value| # any way to know which iteration this is # (without having to create a count variable)? } ...
I'm new to Ruby and working through some tutorials/screencasts. I've reached the section where they're discusisng the before_filter callback, and it's using some syntax that's a little weird for me. I don't know if it's a feature of ruby, of if it's some rails magic, and was hoping someone here could set me straight or point me in the ...
The ruby class-instance stuff is giving me a headache. I understand given this... class Foo @var = 'bar' end ...that @var is a variable on the created class's instance. But how do I create a sub-class overridable class variable? Here is an example of what I would do in Python: class Fish: var = 'fish' def v(self): return sel...
I have a problem, I'll simplify it down to the blog example. 1) Each 'post' is created by a different user stored in a 'User' database. 2) Several 'comments' belong to the one 'post'. 3) When a new 'comment' is made, the user who created the initial 'post' needs to be emailed. I have setup the mailer and observer. I am just not sure how...
What are good sites to look for useful ruby gems? ...
Hi all s it posible to align an image to the right and wrap text around the image like it is in html and css using the float:right property ? If so how do you do this ? I can align an image but dont't know how to wrap the text around it. The text is dynamic text therefore varies alot in length. Thanks alot Rick ...