defunkt

# Video: http://rubyhoedown2008.confreaks.com/08-chris-wanstrath-keynote.html

Hi everyone, I'm Chris Wanstrath.

When Jeremy asked me to come talk, I said yes.  Hell yes.  Immediately.  But
then I took a few moments and thought, Wait, why?  Why me?  What am I supposed
to say that's interesting?  Something about Ruby, perhaps.  Maybe the
future of it.  The future of something, at least.  That sounds
keynote-y.

coryalder

// extends http://johnehartzog.com/2009/10/easy-to-create-buttons-with-cocos2d/
// give you a button that toggles between two images
// uses cocos2d 0.9, so all the classes are called CCMenuItem instead of MenuItem.
// other than that it should work with older versions of cocos2d

+ (id)buttonWithImage:(NSString*)file
			 andImage:(NSString *)otherFile
		   atPosition:(CGPoint)position
			   target:(id)target
			 selector:(SEL)selector

zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

ecpplus

id delaying = [CCDelayTime actionWithDuration:1.5f]; // duration is second, not millsecond.
id sequence = [CCSequence actions:someAction, delaying, nil];
CCRepeatForever *repeatAction = [CCRepeatForever actionWithAction:sequence];
[aSprite runAction:repeatAction];

ecpplus

CCSpriteSheet *animationSheet = [CCSpriteSheet spriteSheetWithFile:@"animation_sheet.png"];
[self addChild:animationSheet];

CCSprite *animationSprite = [CCSprite spriteWithTexture:animationSheet.texture 
                                                   rect:CGRectMake(0, 0, 256, 290)];
animationSprite.position = ccp(self.contentSize.width / 2, self.contentSize.height / 2);
[animationSheet addChild:animationSprite];

CCAnimation *animation = [CCAnimation animationWithName:@"an_animation" delay:0.04f];

fnhipster

!!! 5
%html
  %head
    %title= "Your Website"
    %meta{ :content => "", :name => "description" }
    %meta{ :content => "", :name => "author" }
    %meta{ :content => "3 days", :name => "revisit-after" }
    %link{ :href => "http://creativecommons.org/licenses/by/3.0/", :rel => "license", :title => "Creative Commons Attribution 3.0 Unported License" }
    %link{ :href => "/feed", :rel => "alternate", :title => "Atom", :type => "application/atom+xml" }
    %link{ :href => "/css/screen.css", :media => "screen", :rel => "stylesheet" }

ericsaboia

# ActiveRecord::Base#dup and ActiveRecord::Base#clone semantics have changed to closer match normal Ruby dup and clone semantics.

# Calling ActiveRecord::Base#clone will result in a shallow copy of the record, including copying the frozen state. No callbacks will be called.

# Calling ActiveRecord::Base#dup will duplicate the record, including calling after initialize hooks. Frozen state will not be copied, and all associations will be cleared. A duped record will return true for new_record?, have a nil id field, and is saveable.

jcasimir

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

bjhess

Navigation:

cmd-p             Goto Anything ('@' for functions, ':' for line number)
cmd-r             Function finder
ctl-g             Goto line number
cmd-sft-p         Command palette
cmd-sft-f         Find in Files
cmd-opt-r         Toggle regex when finding
cmd-opt-#         Columns
ctr-#             Switch columns

vasilisvg

The script below is triggered every day from my Mac. I use Hazel to move the tar.gz to an external hard disk once it's finished. This happens every day without me noticing. You can exclude folders if you want to. You probably want to exclude giant cache folders.

You should have a similar script.