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Django rest framework nested self-referential objects
...tionships is something that needs to be added.
Edit: Note that there is now a third-party package available that specifically deals with this kind of use-case. See djangorestframework-recursive.
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What is the runtime performance cost of a Docker container?
...en you can expect a minor hit in latency, as shown below. However, you can now use the host network stack (e.g., docker run --net=host) when launching a Docker container, which will perform identically to the Native column (as shown in the Redis latency results lower down).
They also ran latency...
Insert picture into Excel cell [closed]
...
Now we can add a picture to Excel directly and easely. Just follow these instructions:
Go to the Insert tab.
Click on the Pictures option (it’s in the illustrations group).
In the ‘Insert Picture’ dialog box, locat...
The builds tools for v120 (Platform Toolset = 'v120') cannot be found
... this error, you may be invoking the wrong MSBuild. With VS2013, Microsoft now includes MSBuild as part of Visual Studio. See this Visual Studio blog posting for details.
In particular, note the new location of the binaries:
On 32-bit machines they can be found in: C:\Program
Files\MSBuild\12...
How to format a JavaScript date
...
Use the date.format library:
var dateFormat = require('dateformat');
var now = new Date();
dateFormat(now, "dddd, mmmm dS, yyyy, h:MM:ss TT");
returns:
Saturday, June 9th, 2007, 5:46:21 PM
dateformat on npm
http://jsfiddle.net/phZr7/1/
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PostgreSQL: Which Datatype should be used for Currency?
...ce). Reading your comment, I used MONEY for most of my currency fields and now I get this Java exception : "SQLException occurred : org.postgresql.util.PSQLException: Bad value for type double : 2,500.00". I have googled and found no good solution, so I am into the boring task of changing all of the...
Best way to store a key=>value array in JavaScript?
...e you asked about how to loop through a key value array you would want to know how to get an object (key=>value array) like the person object above to have, let's say, more than one person.
Well, now that we know javascript arrays are used typically for numeric indexing and objects more flexibly...
Disable password authentication for SSH [closed]
...n yes
to
ChallengeResponseAuthentication no
PasswordAuthentication no
Now generate the RSA key:
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
(For me an RSA key worked. A DSA key did not work.)
A private key will be generated in ~/.ssh/id_rsa along with ~/.ssh/id_rsa.pub (public key).
Now move ...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
Now mongo also should do fine.
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
...ults, but we've ascertained that it's at least one-quarter of all inputs.
Now let's look at a fixed-width (i.e. non-bignum) integer power function. For what portion inputs does it not simply overflow? To maximize the number of meaningful input pairs, the base should be signed and the exponent uns...