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PostgreSQL query to return results as a comma separated list
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Note that for me at least, string_agg didn't like taking an int for its first argument so I did something like: string_agg(CAST(id as varchar), ',') instead.
– JZC
Jun 22 '15 at 17:24
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How to change border color of textarea on :focus
Forgive me is this is a stupid question, but i need help.
I want to change border color of TEXTAREA on focus. but my code doesn't seem to working properly.
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namespaces for enum types - best practices
Often, one needs several enumerated types together. Sometimes, one has a name clash. Two solutions to this come to mind: use a namespace, or use 'larger' enum element names. Still, the namespace solution has two possible implementations: a dummy class with nested enum, or a full blown namespace.
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How to detect online/offline event cross-browser?
...2011, the various browser vendors cannot agree on how to define offline. Some browsers have a Work Offline feature, which they consider separate to a lack of network access, which again is different to internet access. The whole thing is a mess. Some browser vendors update the navigator.onLine flag ...
What is the most efficient way of finding all the factors of a number in Python?
Can someone explain to me an efficient way of finding all the factors of a number in Python (2.7)?
22 Answers
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Create a devise user from Ruby console
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You can add false to the save method to skip the validations if you want.
User.new({:email => "guy@gmail.com", :roles => ["admin"], :password => "111111", :password_confirmation => "111111" }).save(false)
Otherwise I'd do this
User.create!...
The first day of the current month in php using date_modify as DateTime object
... way to do it:
<?php
// First day of this month
$d = new DateTime('first day of this month');
echo $d->format('jS, F Y');
// First day of a specific month
$d = new DateTime('2010-01-19');
$d->modify('first day of this month');
echo $d->format('jS, F Y');
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keep rsync from removing unfinished source files
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It seems to me the problem is transferring a file before it's complete, not that you're deleting it.
If this is Linux, it's possible for a file to be open by process A and process B can unlink the file. There's no error, but of course ...
How to make Scroll From Source feature always enabled?
How to enable "Scroll from source" in IntelliJ IDEA so it is always on, meaning if you open any file it is automatically shown in Project view, likewise it is made in Eclipse?
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What is the most efficient way to create HTML elements using jQuery?
...g a lot of modal window pop-ups and what not, for which I used jQuery. The method that I used to create the new elements on the page has overwhelmingly been along the lines of:
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