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self.roles.each do |r| | |
define_method "#{r}?" do | |
role == r | |
end | |
end |
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SecureRandom.base64(5).tr('+/=lIO0', 'pqrsxyz') |
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@implementation AppDelegate | |
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification { | |
[NSApp setServicesProvider:[MyService new]]; | |
... |
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pg_dump databas > dump.sql |
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Devise.friendly_token |
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.ring { | |
border: 3px solid #999; | |
-webkit-border-radius: 30px; | |
height: 40px; | |
width: 40px; | |
position: fixed; | |
top: 45%; | |
left: 45%; |
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+ (MyClass *)sharedInstance { | |
static dispatch_once_t _predicate; | |
static MyClass *_sharedInstance = nil; | |
dispatch_once(&_predicate, ^{ | |
_sharedInstance = [self new]; | |
}); | |
return _sharedInstance; | |
} |
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static NSDateFormatter *dateFormatter = nil; | |
static dispatch_once_t onceToken; | |
dispatch_once(&onceToken, ^{ | |
dateFormatter = [NSDateFormatter new]; | |
[dateFormatter setDateFormat:@"yyyy-MM-dd"]; | |
}); | |
return [dateFormatter dateFromString:self]; |
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static NSDateFormatter *railsFormatter = nil; | |
if (railsFormatter == nil) { | |
railsFormatter = [[NSDateFormatter alloc] init]; | |
[railsFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss'Z'"]; | |
} | |
return [railsFormatter stringFromDate:self]; |
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chflags nohidden ~/Library/ |