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Uniq by object attribute in Ruby
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205
Use Array#uniq with a block:
@photos = @photos.uniq { |p| p.album_id }
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Retrieving the last record in each group - MySQL
...rflow August data dump. I'll use that for benchmarking. There are 1,114,357 rows in the Posts table. This is running on MySQL 5.0.75 on my Macbook Pro 2.40GHz.
I'll write a query to find the most recent post for a given user ID (mine).
First using the technique shown by @Eric with the GROUP BY ...
How to restart Jenkins manually?
...gerdpack
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answered Nov 10 '11 at 10:08
Željko FilipinŽeljko Filipin
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How to list the contents of a package using YUM?
...SticheleThomas Vander Stichele
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12
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ASP.NET MVC 5 - Identity. How to get current ApplicationUser
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451
You should not need to query the database directly for the current ApplicationUser.
That intro...
How to store custom objects in NSUserDefaults
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517
On your Player class, implement the following two methods (substituting calls to encodeObject ...
MySQL Orderby a number, Nulls last
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578
MySQL has an undocumented syntax to sort nulls last. Place a minus sign (-) before the column...
How do I detect what .NET Framework versions and service packs are installed?
A similar question was asked here , but it was specific to .NET 3.5. Specifically, I'm looking for the following:
13 Answe...
How to increment a datetime by one day?
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date = datetime.datetime(2003,8,1,12,4,5)
for i in range(5):
date += datetime.timedelta(days=1)
print(date)
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Count immediate child div elements using jQuery
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edited Feb 11 '14 at 9:54
answered Oct 30 '08 at 15:49
G...