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How do I show multiple recaptchas on a single page?
... put multiple div elements for the recaptchas and render the recaptchas inside them explicitly.
This is easy with the google recaptcha api:
https://developers.google.com/recaptcha/docs/display#explicit_render
Here is the example html code:
<form>
<h1>Form 1</h1>
<div&...
Best practice: AsyncTask during orientation change
...
Do NOT use android:configChanges to address this issue. This is very bad practice.
Do NOT use Activity#onRetainNonConfigurationInstance() either. This is less modular and not well-suited for Fragment-based applications.
You can read my art...
MySQL Orderby a number, Nulls last
...to DESC:
SELECT * FROM tablename WHERE visible=1 ORDER BY -position DESC, id DESC
It is essentially the inverse of position DESC placing the NULL values last but otherwise the same as position ASC.
A good reference is here http://troels.arvin.dk/db/rdbms#select-order_by
...
Is there a way to access the “previous row” value in a SELECT statement?
...rder rows such that each one is distinct:
select rank() OVER (ORDER BY id) as 'Rank', value into temp1 from t
select t1.value - t2.value from temp1 t1, temp1 t2
where t1.Rank = t2.Rank - 1
drop table temp1
If you need to break ties, you can add as many columns as necessary to the ORDER BY.
...
How to manage REST API versioning with spring?
...e ranges, but the element does support the * wildcard as well as !=. So at least you could get away with using a wildcard for cases where all versions support the endpoint in question, or even all minor versions of a given major version (e.g. 1.*).
I don't think I've actually used this element befo...
XDocument.ToString() drops XML Encoding Tag
...m.IO;
using System.Text;
using System.Xml.Linq;
class Test
{
static void Main()
{
string xml = @"<?xml version='1.0' encoding='utf-8'?>
<Cooperations>
<Cooperation />
</Cooperations>";
XDocument doc = XDocument.Parse(xml);
StringBuilder bui...
Getting the ID of the element that fired an event
Is there any way to get the ID of the element that fires an event?
22 Answers
22
...
How do servlets work? Instantiation, sessions, shared variables and multithreading
...en an HTTP 405 error is returned in the response.
The request object provides access to all of the information about the HTTP request, such as its URL, headers, query string and body. The response object provides the ability to control and send the HTTP response the way you want by, for instance, ...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...affected and not on the Courses
follow-up question: why do you have CourseID on table Category?
Maybe you should restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARCHAR(63) NOT NULL UNIQUE
);
CREATE TABLE Courses
(
CourseID INT...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
... data then?
You know you can do the following:
db.collection.update( { _id:...} , { $set: someObjectWithNewData }
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