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How do I make a column unique and index it in a Ruby on Rails migration?
... column_name that I defined as unique! I'm using Rails 2.3.4 and MySql any ideas?
– Tam
Sep 20 '09 at 4:57
I used you ...
JavaScript: replace last occurrence of text in a string
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Good idea. Need to escape that string first (though not with her sample data, granted), which is non-trivial. :-(
– T.J. Crowder
Apr 28 '10 at 13:13
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Get final URL after curl is redirected
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Thanks for those ideas. I rewrote it for terminal usage in my .bashrc file as a function, and there's no need for the terse options in that file, so I used the long names to self-document this: finalurl() { curl --silent --location --head --o...
Get a specific bit from byte
...ls to certain library functions and generate efficient code, but I have no idea if these particular functions get the love.
– Ben Voigt
Apr 2 '14 at 19:01
1
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bundle install fails with SSL certificate verification error
...rovides output of Latest version currently installed. Aborting. Any other ideas?
– Matt Huggins
Nov 3 '13 at 22:49
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One-liner to check whether an iterator yields at least one element?
...r, sentinel) is sentinel:
print('iterator was empty')
If you have no idea of what the iterator might possibly yield, make your own sentinel (e.g. at the top of your module) with
sentinel = object()
Otherwise, you could use, in the sentinel role, any value which you "know" (based on applicat...
How to get the current URL within a Django template?
...e brought to hypete's and Igancio's answers, I'll just summarize the whole idea here, for future reference.
If you need the request variable in the template, you must add the 'django.core.context_processors.request' to the TEMPLATE_CONTEXT_PROCESSORS settings, it's not by default (Django 1.4).
You m...
How to convert vector to array
...double arr[v.size()] is not valid. Using vector in place of new is a good idea, but the entire point of the question is how you can convert a vector into an array.
– RyanP
May 28 '15 at 13:30
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Static Block in Java [duplicate]
... maintain. I would argue that forcing them into the constructors may a bad idea, especially if you have more than one constructor and need to repeat the initialization. (If you for instance change from ArrayList to LinkedList you need to remember to change it in multiple places.)
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jQuery - prevent default, then continue default
...hin the form? That will also submit the form. So, it's probably not a good idea to rely on the submit button getting clicked.
– StackOverflowNewbie
Jan 17 '13 at 9:08
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