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Rails nested form with has_many :through, how to edit attributes of join model?
...ernet for an association like this was such a pain at the time -- maybe my google-fu was off that day. I wanted to at least document it here as I as my co-worker and I just assumed rails converted linked_attributes to an array, instead of a zero indexed hash. Hopefully this tidbit helps someone in t...
Java, Classpath, Classloading => Multiple Versions of the same jar/project
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@deckingraj: after some googling i found this from oracle docs: "In the delegation design, a class loader delegates classloading to its parent before attempting to load a class itself. [...] If the parent class loader cannot load a class, the class ...
Safari 3rd party cookie iframe trick no longer working?
...parently Apple "fixed" it with 5.1.4. I'm sure this is the reaction to the Google-thing: "An issue existed in the enforcement of its cookie policy. Third-party websites could set cookies if the "Block Cookies" preference in Safari was set to the default setting of "From third parties and advertisers...
EC2 instance types's exact network performance?
... in particular for many of the benchmarks (note that those two links go to google searches showing the numerous individual benchmarks).
Caveats & Notes:
The large instance size has the most variation reported:
m1.large is ~800 Mbit/s (!!!)
t2.large = ~500 MBit/s
c3.large = ~500-570 Mbit/s (d...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
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Googling for browser reliable detection often results in checking the User agent string. This method is not reliable, because it's trivial to spoof this value.
I've written a method to detect browsers by duck-typing.
Only use...
JSON formatter in C#?
... Yours is nice too except one minor bug: "url":"url('http://google.com')" format to "url":"url('http : //google.com')". spaces are added before and after the second ":" which is wrong.
– Peter Long
Jun 5 '11 at 2:13
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jquery data selector
...e]') would not be correct.
You'll need to use the data plugin http://code.google.com/p/jquerypluginsblog/, use Dmitri's filter solution, or do a $.each over all the elements and check .data() iteratively
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Sublime Text 2 keyboard shortcut to open file in specified browser (e.g. Chrome)
...build config for launching chrome on my mac.
{
"cmd": ["open", "-a", "Google Chrome", "$file"]
}
Save that as Chrome.sublime-build, relaunch Sublime Text and you should see a new Chrome option in the build list. Select it, and then you should be able to launch Chrome with Cmd+B on a Mac (or w...
What are the lesser known but useful data structures?
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Google cites the use of Bloom filters in there implementation of BigTable.
– Brian Gianforcaro
May 22 '10 at 23:33
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
...tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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