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Java ResultSet how to check if there are any results
...n a resultset from type "forward only".
Compare the two throw sections:
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#isBeforeFirst()
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#first()
Okay, basically this means that you should use "isBeforeFirst" as long...
Python 3: ImportError “No Module named Setuptools”
...rt". Installation instructions for distribute(setuptools) + pip:
curl -O http://python-distribute.org/distribute_setup.py
python distribute_setup.py
easy_install pip
Similar issue here.
UPDATE: Distribute seems to be obsolete, i.e. merged into Setuptools: Distribute is a deprecated fork of the...
Favicons - Best practices
...orm Specific Settings - Favicon generator used to generate the icons below http://realfavicongenerator.net/ -->
<!-- shortcut icon - It is best to add this icon to the root of your site and only use this link element if you move it somewhere else. This file contains the following sizes 16x16, ...
What does href expression do?
...th <a href="#">...</a> will not cause your browser to send any HTTP requests anywhere; all it will do is scroll to the top of the page.
– Mark Reed
Dec 10 '13 at 18:46
...
$(window).width() not the same as media query
...nsistent with the CSS media queries and the browser support is quite good: http://caniuse.com/#feat=matchmedia
UPDATE:
If you have to support more browsers you can use Modernizr's mq method, it supports all browsers that understand media queries in CSS.
if (Modernizr.mq('(max-width: 767px)')) {
...
How can I create a simple message box in Python?
...)
response = pymsgbox.prompt('What is your name?')
Full documentation at http://pymsgbox.readthedocs.org/en/latest/
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Why can't I use Docker CMD multiple times to run multiple services?
...onf
If you would like more details, I wrote a blog on this subject here: http://blog.trifork.com/2014/03/11/using-supervisor-with-docker-to-manage-processes-supporting-image-inheritance/
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Change a Rails application to production
... your Rails project, rails s, and get a development version of your app at http://something.com:3000. Production mode is a little trickier to configure.
I've been messing around with this for a while, so I figured I'd write this up for the newbies (such as myself). There are a few little tweaks whi...
Save image from URL by paperclip
...self.picture = open(url)
end
end
Then simply :
user.picture_from_url "http://www.google.com/images/logos/ps_logo2.png"
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When do you use POST and when do you use GET?
...se GET when it's safe to allow a person to call an action. So a URL like:
http://myblog.org/admin/posts/delete/357
Should bring you to a confirmation page, rather than simply deleting the item. It's far easier to avoid accidents this way.
POST is also more secure than GET, because you aren't sti...