mkristgan's rack_datamapper gem says that it "can be wrapped to be used in a specific environement, i.e. Rack::Session::Datamapper".
Unfortunately, I don't know quite enough about Ruby to accomplish this task yet –Modules/Classes in Ruby are still above my head (coming from PHP).
Can anyone offer assistance with using rack_datamapper to implement Rack::Session::Datamapper?
You probably don't want to do this anyway.
The answer below is great, but upon closer consideration, I realized I shouldn't do it anyway. Instead, I'm placing the user_id, ip and first name (for convenience) in a cookie and protecting it.
This gem should help:
In Sinatra just add:
use Rack::Session::Moneta,
store: Moneta.new(:DataMapper, setup: (ENV['DATABASE_URL'] || "sqlite://#{Dir.pwd}/development.db"))
and use session[] object at will.
Related
Is there a ruby gem that I can use with Ruby or Ruby on Rails that accepts an info hash and returns information on the torrent? Like seeders, leachers, size, etc.?
If not is there any other way I can get this information using Ruby? Is there an API that I can easily digest?
Thanks in advance.
Take a look at the thepiratebay.
Although, it seems like it's not maintained actively anymore. But, should solve your problem.
You can find a torrent:
ThePirateBay::Torrent.find("123123123")
Also, you can get all the seeders, leechers and size:
ThePirateBay::SortBy::Size # Size, largest first
ThePirateBay::SortBy::Seeders # Most seeders first
ThePirateBay::SortBy::Leechers # Most leechers first
So, why not giving it a try?
It really depends what torrents you are talking about. Different torrent trackers have different APIs.
You might want to dig into specific tracker API (please be mindful these ones are not Ruby APIs):
https://getstrike.net/api/
https://www.npmjs.com/package/thepiratebay
I'm thinking of building an application that helps you find local businesses (just an example). You might enter your zip code (or GPS if this is on a phone) and find the closest business within 10 miles, etc. My question is how can I achieve this type of logic? Is there a library or service that I will need to use? Or can this be done with math? I'm not familiar with how this sort of thing usually works, so let me know how I need to store the records so I can query them later. Note: I will be using Ruby and MongoDB.
It should be easy to find the math to solve that, providing lat/long coordinates.
Or you could use some full featured gem to do that for you like Geocoder, that supports Mongoid or MongoMapper.
Next time you need some feature that might be a commun world problem, first check if there is a gem for that at ruby-toolbox, for this case here are some other gems for geocoding
One more solution here...
http://geokit.rubyforge.org/
I think, this topic is already discussed here..
I wrote a feature to test the default configuration of my web app using Cucumber and Capybara. Part of the feature looked like this:
And the page has a photo labeled "Device"
And the page has a checkbox labeled "Device"
And I check "Device"
And I submit the form
Then the resulting page has no photo labeled "Device"
It worked great. I want users who have installed and configured the web app on their own servers to be able to run the test to help confirm that their configuration is correct. And "Device" is a string in the default config file that the user can change. It's an element in an array and they can add to or remove from the array when configuring their instance of the app.
Is this a sensible use of the tools or am I abusing Cucumber and/or Capybara? If it's sensible, how would I do it? If it's a bad idea, what tools might I use for this instead, if anything?
Here's how I got it to work. I'm just not sure this is the best way to do it.
For this to work, the feature would have to look more like this:
And the page has at least 3 photos, let us call the last one "third_photo"
In the corresponding step definition, I use an XPath to pull out the corresponding label string for the first photo and assign it to a Hash object stored in a class variable.
And /^I the page has at least (\d*) photos, let us call the last one "([^\"]*)"$/ do |n, name|
if ! defined?(#note)
#note = Hash.new;
end
#note[name] = find(:xpath, '//ol[#id="menu"]/li[' +n+ ']/a').text;
end
Subsequent step definitions can now access the value, whatever it was.
So, another feature might be:
Then I uncheck "third_item"
And the corresponding step definition might be:
Then /I uncheck "([^\"]*)"/ do |item|
uncheck(#note[item])
end
But I don't feel good about it. If nothing else, I imagine there might be a name collision with another instance variable defined outside the step definitions.
It feels like I'm either Doing It Wrong or else I'm Using The Wrong Tool. What is the right way to do this?
Don't know what you are fishing after, but it feels like your tests and implementation are quite tightly coupled. Maybe that's the feeling you are having, that it seems like you are describing your app in tests.
I don't have a good answer to your questions, merely because I don't "understand" it. I would however urge you to try to decouple your tests from your implementation and see if there's any abstraction there waiting to be found.
There's a blog post about using instance variables in step definitions at http://www.cloudspace.com/blog/2010/06/23/using-instance-variables-with-cucumber-steps/.
Commenters talk about the coupling this entails and at least one possible way around it.
In particular, davetron5000 says:
What we do is to not use instance variables at all, but instead
provide a has that shared state can go in. This hash is cleared after
each test run. Not ideal, but it's a bit cleaner than random instance
variables all over the place (and also ensures a reasonably clean
state before each test)
I'm building a site that allows users to make sense of a debate by graphically representing arguments for and against a particular issue. (Wrangl)
I'd like to categorise these debates so they are more easily found and connected. I don't want to irritate the person creating the debate by asking them to add tags and categories before they see any benefit, so I'm looking at a way of automatically extracting keywords.
What's a good approach for taking the debate's title and description (and possibly the content of the arguments themselves once there are some) to pull out, say, ten strong keywords that could be used as metadata to connect similar debates together, or even as the content of the "meta" keywords tag in the head of the HTML page where the debate is viewable. Eg. Datamapper vs ActiveRecord
The site is coded in Ruby with Sinatra, using DataMapper for data storage. I'm ideally looking for something which will work on Heroku (I don't have a way of writing files to disk dynamically), and I'd consider a web service, an API or ideally a Ruby gem.
Maybe you can use TextAnalyzer.
I understand that you're wanting to find an easy way of achieving this, I've recently dived into the world of NLP (Natural Language Processing) and Text-mining and its a daunting process of which most went far above my head.
Although i managed to code some functionality that resembles what you're looking for, though I did it in PHP. What i would suggest, that if you want it tailored to your project (Wrangl) then do it yourself.
Using the Porter stemming algorithm which I'm sure there will be Ruby code for.
Ruby Porter stemmer
You can try the salsaAPI to automatically extract keywords and categorize the debates!
I have a shopify store that I want to automatically update the product variants inventory levels with, using a live xml feed from the wholesaler I use.
I'm learning to program (Ruby) and this is my first project, but after researching here is how I think it should work.
Use Ruby/Nokugiri to parse the XML feed from the wholesaler, and then Xpath to locate both the unique product variant SKU code, and the stock level.
Somehow I need to use this SKU to refer back to my Shopify store product XML list, and pull out the variants unique ID using the SKU code.
Then use something like the builder gem to build the XML format that shopify needs, and then use curl to PUT the changes. I'm guessing I loop this process for every product?
I know Shopify only has a 300 call limit, so I've got the article on putting a delay in the script, but I get the feeling the above method isn't the easiest way to go about this?
With Shopify you need to apply the variant stock level update against unique variant xml files, so I need to build the unique xml file/code and PUT it against /admin/variants/#[thevariantid].xml
I'm looking forward to trying to put this together and learning in the process, but am I on the right track with this? Are there simpler gems I should be looking at?
n.b I've only recently started learning Ruby, and will head to Rails afterwards. I know a bit about XML and it's structure so should be ok finding what I need with XPath.
You’re on the right track, but I’d use the shopify_api gem to do the talking to Shopify instead of having to form the XML and URIs yourself: https://github.com/Shopify/shopify_api
There’s an article on our wiki that might also help you out with regards to the API call limit but just let me know if you need more space – we’re pretty flexible and the limit is really just there to keep scripts from going wild and affecting service for everyone else.
Your proposed path seems good, except that there's no need to use the 'builder' gem, as Nokogiri has some very nice XML-building built into it.