Change database column names for form validations in Rails
When you use validations in Rails, db column names are used as 'keys' for error messages. This is usually the preferred way to go about it because this maps nicely to the form fields. However, if you use a virtual attribute this may not be the case. For e...
Written by Sean Behan on 06/17/2012
How to Create A Unix Timestamp or the Epoch in Python
It's a little convoluted. Seeing as it's a pretty common thing you use when programming computers one might think that there would be a quick and easy method for it. But from what I can tell there isn't. So here is a snippet that will give you a *nix Epoc...
Written by Sean Behan on 11/02/2013
Yield a Block within Rails Helper Method with Multiple Content_tags Using Concat
To clean up some repetitive html coding in views, pass a block of text to a helper function which will wrap it for you the same way, each and every time. For example, I have a 'help' link which will toggle the display of a block of text if a link is click...
Written by Sean Behan on 06/17/2012
XPath with HTML in PHP One Liner
Here is a one liner for using XPATH with HTML in PHP
$doc = new DOMXPath(@DOMDocument::loadHTML(file_get_contents("https://www.reddit.com/r/PHP/")));
Now you can use XPATH to query the html..
foreach($doc->query("//a") as $el){
echo $el->no...
Written by Sean Behan on 11/14/2017
How to Fix Raw query must include the primary key with Django ORM
When running raw SQL queries in Django you must include a primary key otherwise an invalid query exception is raised. Normally this is fine but when running more complex queries a primary key may not be available or even make sense.
There is a simple ...
Written by Sean Behan on 07/15/2017
