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Is it fine to have foreign key as primary key?
...the foreign key refers will always be valid (or null, if allowed).
http://www.aisintl.com/case/primary_and_foreign_key.html
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Add days to JavaScript Date
... is no such constructor for Date: var result = new Date(date);, see http://www.w3schools.com/js/js_dates.asp. Even if this usually work, sometimes can lead to wrong results because of conversion to string and vice versa. It should be var result = new Date(date.getTime());
– Mar...
Restful API service
...o make the network calls and Otto to implement a data bus pattern:
http://www.mdswanson.com/blog/2014/04/07/durable-android-rest-clients.html
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...rom user modifying sensitive data.
Here is extended explanation:
http://www.stevefenton.co.uk/Content/Blog/Date/201303/Blog/Why-You-Never-Expose-Your-Domain-Model-As-Your-MVC-Model/
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A CORS POST request works from plain JavaScript, but why not with jQuery?
...w-Credentials, * seems to work
header('Access-Control-Allow-Origin: http://www.example.com');
//if you need cookies or login etc
header('Access-Control-Allow-Credentials: true');
if ($this->getRequestMethod() == 'OPTIONS')
{
header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS'...
Update an outdated branch against master in a Git repo
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
Using psql how do I list extensions installed in a database?
...
In psql that would be
\dx
See the manual for details: http://www.postgresql.org/docs/current/static/app-psql.html
Doing it in plain SQL it would be a select on pg_extension:
SELECT *
FROM pg_extension
http://www.postgresql.org/docs/current/static/catalog-pg-extension.html
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How to execute XPath one-liners from shell?
...use namespace add it to -qs like this: '-qs:declare namespace mets="http://www.loc.gov/METS/";/mets:mets/mets:dmdSec'
– igo
Aug 24 '16 at 12:26
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How to get response status code from jQuery.ajax?
...s code. If you do not understand jsons, please refer to the video: https://www.youtube.com/watch?v=Bv_5Zv5c-Ts
It explains very basic knowledge that let you feel more comfortable with javascript.
You can do it with shorter version of ajax request, please see code above:
$.get("example.url.com", f...
Who architected / designed C++'s IOStreams, and would it still be considered well-designed by today'
...ne Stroustrup where he mentions some bits and pieces of IOStreams history: www2.research.att.com/~bs/01chinese.html (this link seems to be temporarily broken right now, but you can try Google's page cache)
– stakx - no longer contributing
May 2 '10 at 11:48
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