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What exactly is Arel in Rails 3.0?
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What exactly is Arel in Rails 3.0?
It's an object model for an algebra of relational query operators.
I understand that it is a replacement for ActiveRecord
No, it isn't. It's a replacement for hand-crafting SQL queries in strings. It is a common query...
How to do a batch insert in MySQL
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304
From the MySQL manual
INSERT statements that use VALUES
syntax can insert multiple rows....
Rails 3 check if attribute changed
Need to check if a block of attributes has changed before update in Rails 3.
5 Answers
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How to alias a table in Laravel Eloquent queries (or using Query Builder)?
...B::table('really_long_table_name')->insert(['id' => null]);
// true
[3] > DB::table('really_long_table_name AS t')->select('t.id AS uid')->get();
// array(
// 0 => object(stdClass)(
// 'uid' => '1'
// )
// )
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Don't display pushd/popd stack across several bash scripts (quiet pushd/popd)
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UINavigationController without navigation bar?
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edited Apr 9 at 15:30
iluvatar_GR
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answered Apr 23 '11 at ...
Django “login() takes exactly 1 argument (2 given)” error
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3 Answers
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Rails nested form with has_many :through, how to edit attributes of join model?
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3 Answers
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How to convert a java.util.List to a Scala list
...cit conversion for you; e.g.:
var list = new java.util.ArrayList[Int](1,2,3)
list.foreach{println}
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