Interesting Things

• Check out the CSS History of Image Replacement Compass supports the two modern ones, see here

• git co- (toggle between last branch)

Events This Week

Thursday:

• 6:30- NYC Ruby Women Hackfest + Chat

Interesting Things

• When you load objects through associations, you should be aware of how the objects are being loaded. If a where statement is used the calls are being translated to SQL and always hitting the database.

example

it "should whatever" do
      foo.bars.where(something: true).each { |bar|        bar.modify_something }
      foo.bars.each { |bar| bar.expect_something_to_be_modified }
end

• This will fail as the first call is not only limiting the association but also loading different objects to the second foo.bars collection.

• Choosing first on a has_many association is dangerous. There are two 'first' functions a class and an array one. Depending on whether the association is loaded, a different method is called.

example

it "should do something with the first element" do
    foo.bars.first.modify_something
    foo.bars(:force_load).first
end

• To ensure loading occurs and thus the object is the same on every call, you can provide any value that evaluates to true as part of the association call. Here :force_load symbol, evaluates to true and forces a database load for bars.

Events This Week

Tuesday:

• 12:30- Brownbag
• 6:30- NYC.rb Hackfest

Thursday:

• 6:30- NYC Ruby Women Hackfest + Chat

Interesting Things

• Firefox can't alias a font face, unless the alias is the same place as the server.
• Rails 3 includes a method to return all validators on an object eg:

Person.validators => []

Events

• Handstand practice is becoming as important as stretches.

Interesting Things

• Internet Explorer is now below 50% market share.
• VIM turned 20 - Happy Birthday VIM.
• pgpool-II (version 3.2) - load balancer, failover support, replacement for using postgres directly.PGPOOL-II

Ask for Help

"How do I stub the base (super) class of an object using rspec?"

• No answer yet. It was tested by confirming a method that the base method referenced was called. Solution welcome.

Events

• 7:30pm Raise Cache -Lose 20 pounds in 2 hours from 0 to photoshop

Interesting Things

• Weinre - WEb INspector REmote, a debugger for web pages designed to work remotely, nice weblet look. Allows you to debug web pages on phones.
  • Check it out (http://phonegap.github.com/weinre/) Thanks Micah
• Moeless
• Those strange looking people, are just moustache-less pivots. Support/join for the cause. Today is Day one.

Ask for Help

• Rails Validates uniqueness allows nils. The database (psql and mysql) allows unlimited nils. *BUG - The app did not allow unlimited nulls. *Cause - The development structure had an allow nil false but the model file had allow nil true. This caused odd behaviour.

EVENTS

TUESDAY

• 7pm Raise Cache - Project Management for Startups

WEDNESDAY

• 6:30pm Node JS
• 7pm Machine Learning

THURSDAY

• 7pm Raise Cache