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Factory girl &Faker part II

I think there is only one more thing left for me to say about factory girl, how to handle relations, well it's pretty simple then I thought.

For any(one/many) to many relation just use the following

FactoryGirl.define do factory :channel do name {Faker::Name.name} cluster_discount 0 after(:build) do |channel| channel.push_all(:target_audiences,TargetAudience.all.to_a) end end end

class TargetAudienceFactory FactoryGirl.define do factory :target_audience do name {Faker::Name.last_name} end end end

As you can see I'm just using the after build hook and push as many target audiences as i wish, in this case i add them all.

In any to one you just need to provide the factory name to the object

class TargetAudienceFactory FactoryGirl.define do factory :target_audience do name {Faker::Name.last_name} short_name {name} channel end end end

And that's all there is to know I guess

Rubymine on OSX memory issues

I found this only today, you should run Rubymine as 32 bit process. It works much faster and consume half the memory. To set this got to the Applicaitons folder right click on rubymine->get info and check the "open in 32 bit mode" Thats all!

#Rubymine #Ruby #OSX #memory leak

Use FactoryGirl And Faker for easy data generation in unit testing (Part1)

The most irritating thing in writing tests is the data generation preparation process, sometimes you want to create an object with 20 fields that 10 of them are mandatory but you only care about the value of 1, and you don't want to mock, cause you interact with other methods and object that fetch this model from db. To me it happens a lot so I found the FactoryGirl + Faker combination that made my life much more easy and now I can write tests in peace. To add them just put in Gemfile: gem "factory_girl_rails", "~> 4.0" gem "faker" So lets take a complex sample to explain all there is to know. We have a User, the User belongs to a Company, User has many tasks. Company has many irritating mandatory fields Lets define the Company Factory:

FactoryGirl.define do factory :company do name {Faker::Name.name} trp {Faker::Number.between(0,10)} grp {Faker::Number.between(0,5)} budget {Faker::Number.number(4)} cpm {Faker::Number.between(1,70)} trp_price {Faker::Number.between(100,700)} viewer {Faker::Number.between(0,100000)} total_viewer {Faker::Number.between(0,200000)} unique_viewer {Faker::Number.between(0,50000)} spots {Faker::Number.between(0,1000)} end end

As you can see I define lots of fields with random values. Now we can create a company by writing

create(:company)

Or just build one (without save to db) by calling

build(:company)

That's all for now, I'll continue in part2.

Get the user locale from http headers

If you want to provide default localization support for guest user in your website yo can locate their browser locale by the following code:

def extract_locale_from_header unless request.env['HTTP_ACCEPT_LANGUAGE'].nil? return request.env['HTTP_ACCEPT_LANGUAGE'].scan(/^[a-z]{2}/).first end 'en' end

This way you can determine on server side the locale of the user currently entered your site.

#Ruby #rails #localization #locale #language

Dedicating a DJ(Delayed job) worker to a specific queue in heroku.

Let's say you have a vey important procedure that takes a while, and you need to process it in background, but you still want to execute ASAP. I'm using Delayed Job on Heroku, and could not find a lot of tutorials to do this simple task. So here is the simplest way to achieve this ability, you can raise a process/deamon that will have only one queue to work on. (Dealyed job worker by default is queue agnostic, just process all jobs) In procfile:

urgentworker: QUEUE=urgent bundle exec rake jobs:work

You can call the worker in any name you want and even define multiple workers for multiple queues. And in the "urgent" job just define the queue name to be "urgent" the worker will process only jobs in this queue. example:

handle_asynchronously :some_job, :queue => "urgent'

This will also work for Resque. Notice that for rescue you can write QUEUE=* but for delayed job you can't.

#Ruby #rails #queueing #heroku #delayed job #asynctask

Overriding default id in mongoid

This is an easy one, just want to make sure it's clear. Add the following field to your model:

field :_id, type: Moped::BSON::ObjectId

And to allow setting it:

1 def id=(id) 2 self[:_id] = id 3 end

Now you can just do obj.id=[Some ObjectId] and save the object.

#Ruby #mongoid #mongodb

Nice post about cyber war

Popular Science: The War Of Zeros And Ones. http://google.com/newsstand/s/CBIwvZm5zho

#cyber

ClusteTV is hiring

Cluster TV is looking for it's next programmer/Superstar!

If you can:

* Write code like an Effin' machine

* Test your OWN code

* Speak English like it's your mother's tongue

* Handle challenges

* Be self-driven & independent

We would also appreciate if you'll have:

* Great communications skills

* Independent thinking

* Passion to learn new things

* RoR or Angular experience

* Coffee script knowledge

* NOSQL understanding

Then we want you!

What we offer:

* Great and professional team.

* Opportunity to become an integral part of an innovative TV solution.

* A chance to learn from the best in the industry.

* Full time job in the Tel Aviv area.

* Unlimited supply of food and beer. Really.

* Flexible work hours.

If you like what you see and have da skillz, drop us an email at [email protected] Or, call me tel: +972 542124335.

Good luck!

Karma Rails Angular Jasmine testing - set up in 5 minutes

It took me about an hours and a half because google is not up to date, so here it is: First - as a rails developer, if you don't have node.js, this is the time to install it. If you don't use RubyMine as you IDE, I recommend it as well, but whatever you prefer is fine by me. Here you'll fins instructions about karma installation, follow them carefully. You'll see that you need to tell karma where is your sources and test sources. I'm working with jasmine, and using angular as a gem, check my configuration: frameworks: ['jasmine'], // list of files / patterns to load in the browser files: [ //libs 'http://0.0.0.0:3000/assets/application.js', '/Users/chen/.rvm/gems/ruby-1.9.3-p448/gems/angularjs-rails-1.2.9/vendor/assets/javascripts/angular-mocks.js', 'spec/javascripts/controllers/sample.js', 'spec/javascripts/controllers/*/*_spec.js.coffee', 'spec/javascripts/controllers/**/*_spec.js.coffee', 'spec/javascripts/controllers/**/*_spec.coffee', 'spec/javascripts/controllers/**/*_spec.js' ] To things you should notice: 1. I use rails assets pipeline to give all my app code js, (just run your server before you test) 2. I add the angular mocks lib All other stuff are basic, I got code in coffee and js so needed a little more lines to find all my tests. this is the way to make this work pretty fast.

Export Hebrew (or any non english language) with php to excel

I found it very annoying that php data to excel is not so straight forward as one might think ,lots of wrong stuff here. The thing is, as a developer you don't know a lot about encoding. So you don't really think about it until you have bugs, than you start searching for a better solution, I found this. Meaning you manually convert encoding to support excel, and add BOM. Just wanted to gather a few links together for future use. Enjoy.

Home Base SDK

As a developer@widdit's incredible android team, I decided to write a how to embed Widdit's home base sdk in 5 minutes guide, so here it is: Step 1: go to widdit.com and create an account. Step 2: create your first home base in the home base section at widdit site. step 3: go to sdk's tab and follow the installation instructions step 4: upload your new apk to the market step 5: make money! Good luck.

SpineJS Tip

Never create multiple instances of a controller that generates the same view, cause you're event's registrations will be duplicated over and over again!

#SpineJS js javascript mvc

Avoid usage of AsyncTask Class on android

Just noticed this method available from API 11 only, so you should find another implementation to avoid unexpected behaviour.

Or don't call the execute method, why? If you'll check documentation you'll see that in some versions of android all tasks will run synchronouslly on the same background thread and on some versions it'll run on a pool of threads. Always use the executeOnExecutor option for consistent behaviour between platform version and avoid unexpected behaviour.

See docs

#thread #asynctask #android

Nice idea for what's new in my app

People probably don't read/understand what's new in an app when they update it. Skype did a very nice screen that shows you that something did change

coffee-script is another piece of shit

Hi, A few months ago I discovered this new stuff called coffee script, and thought to myself, "this is awesome I'll write less and do more" Today, I tried to continue a development of a pretty fat client side and tried to find myself in the 1000 lines of code I wrote so far (not so many). It was pretty hard, and I'm the only programmer for now, can't imagine how a new programmer would enter to this project. So... coffee-script is java-script that look better, no other benefits, and if you plan to write a little more than 200 lines of code, consider using some strongly typed language(that can generate debugable java script) with good IDE that'll help you maintain your code.

php post response script execution

I guess it's nice to have so here you go

/* * basically allow a php script to return a response and continue with * code execution, good for statistics. * before echo anything to user call begin and after call end, than you can continue doing stuff */ class ScriptContinuationManager { /** * this is the point where we need to give a sign to this class * that we wanna write our response. * @return void */ public function beginRespone() { ob_end_clean(); header("Connection: close"); ignore_user_abort(); // optional ob_start(); } /* * after this function execution the response will be sent to the * client, and code continue without client need to wait. */ public function endResponse() { $size = ob_get_length(); header("Content-Length: $size"); ob_end_flush(); // Strange behaviour, will not work flush(); // Unless both are called ! } }

#php async

For all you android developers, If you ever installed a new rom and didn't see any logs from your cat, just do this: http://stackoverflow.com/a/7272831/67505

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