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Overriding a Rails default_scope
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Short answer: Do not use default_scope unless you really have to. You'll probably be better off with named scopes. With that said, you can use with_exclusive_scope to override the default scope if you need to.
Have a look at this question for more details.
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Why is the default value of the string type null instead of an empty string?
It's quite annoying to test all my strings for null before I can safely apply methods like ToUpper() , StartWith() etc...
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Finding the id of a parent div using Jquery
... edited Sep 14 '16 at 13:27
DMcCallum83
1921111 bronze badges
answered Feb 13 '09 at 14:10
MarkMark
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Visual List of iOS Fonts?
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Have you tried iOS Fonts?
This gives you a visual of all of the available fonts with the ability to enter your own string of text to see how it would look.
This doesn't appear to have been updated for iOS 7 however but I am unaware of any additional fonts which have been added...
How to validate an email address using a regular expression?
...he IP address pattern that is floating around the internet with a bug that allows 00 for any of the unsigned byte decimal values in a dot-delimited address, which is illegal. The rest of it appears to be consistent with the RFC 5322 grammar and passes several tests using grep -Po, including cases d...
When do we have to use copy constructors?
...ill be copied), so the first to be destroyed copy sharing the buffer will call delete[] successfully and the second will run into undefined behavior. You need deep copying copy constructor (and assignment operator as well).
Class::Class( const Class& another )
{
stored = new char[strlen(ano...
Ruby equivalent of virtualenv?
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use a Gemfile as your application's dependency declaration
use bundle install to install explicit versions of these dependencies into an isolated location
use bundle exec to run your application
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SQL query to group by day
I want to list all sales, and group the sum by day.
8 Answers
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AWS Difference between a snapshot and AMI
So I am having trouble working out what, specifically is the difference between these two.
10 Answers
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How to open multiple pull requests on GitHub
When I open a pull request on GitHub .
All commits since my last request and all new ones are automatically added to this request .
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