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Rails where condition using NOT NIL
...Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 and above adds where.not so you can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id: nil })
When working with scopes between tables, I prefer to leverage merge so that I...
Setting href attribute at runtime
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answered Dec 3 '10 at 12:20
user529141user529141
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Store query result in a variable using in PL/pgSQL
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201
I think you're looking for SELECT INTO:
select test_table.name into name from test_table where...
How to call any method asynchronously in c#
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answered Feb 24 '12 at 17:08
Drew ShaferDrew Shafer
4,54044 gold badges2727 silver badges3939 bronze badges
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How do I do a 'git status' so it doesn't display untracked files without using .gitignore?
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505
Use this:
git status -uno
which is equivalent to:
git status --untracked-files=no
It's a ...
Rails 3 datatypes?
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270
Here are all the Rails3 (ActiveRecord migration) datatypes:
:binary
:boolean
:date
:datetime
:d...
ASP.NET MVC Controller Naming Pluralization
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Leniel Maccaferri
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answered Sep 17 '12 at 15:45
CybermaxsCyberma...
Is there a performance difference between a for loop and a for-each loop?
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answered Nov 2 '08 at 12:47
Vijay DevVijay Dev
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Change size of axes title and labels in ggplot2
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Didzis ElfertsDidzis Elferts
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Explain ExtJS 4 event handling
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+50
Let's start by describing DOM elements' event handling.
DOM node event handling
First of all you wouldn't want to work with DOM node...