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How to implement has_many :through relationships with Mongoid and mongodb?
...ction via another it would still require multiple queries.
https://github.com/mongoid/mongoid/issues/544
Normally if you have a many-many relationship in a RDBMS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For example:
class Phys...
When monkey patching an instance method, can you call the overridden method from the new implementat
... ' World'
end
end
foo = Foo.new # this is not actually in your code, it comes from somewhere else
wrapped_foo = WrappedFoo.new(foo) # this is under your control
wrapped_foo.bar # => 'Hello World'
Basically, at the boundary of the system, where the Foo object comes into your code, you wrap ...
Merge two Git repositories without breaking file history
...ories? ) and following those instructions mostly works, except that when I commit the subtree merge all of the files from the old repositories are recorded as new added files. I can see the commit history from the old repositories when I do git log , but if I do git log <file> it shows onl...
PostgreSQL naming conventions
... written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not quoted (it actually folds them to lowercase internally), and case sensitively when quoted; many people are not aware of this idiosyncrasy. Using always...
How do I setup a SSL certificate for an express.js server?
...s as well as the Node docs for https.createServer (which is what express recommends to use):
var privateKey = fs.readFileSync( 'privatekey.pem' );
var certificate = fs.readFileSync( 'certificate.pem' );
https.createServer({
key: privateKey,
cert: certificate
}, app).listen(port);
Other o...
How do I analyze a .hprof file?
...L) against the in-memory objects, i.e.
SELECT toString(firstName) FROM com.yourcompany.somepackage.User
Totally brilliant.
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Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...
I had the same problem and solved it by running the following command:
sudo /Library/StartupItems/VirtualBox/VirtualBox restart
In later versions, the command is
sudo /Library/Application\ Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh restart
Make sure you've unblocked Vi...
What's the most elegant way to cap a number to a segment? [closed]
...lue is limited to the given range.
*
* Example: limit the output of this computation to between 0 and 255
* (x * 255).clamp(0, 255)
*
* @param {Number} min The lower boundary of the output range
* @param {Number} max The upper boundary of the output range
* @returns A number in the range [min...