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Cookie overflow in rails application?
...session'
UPDATE:
If anyone is receiving a null value in column "session_id" violates not-null constraint message in rails 4, there's a workaround in github(not tested). You must to create an initializer with ActiveRecord::SessionStore::Session.attr_accessible :data, :session_id
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schema builder laravel migrations unique on two columns
...ique key across multiple columns.
$table->unique(array('mytext', 'user_id'));
or (a little neater)
$table->unique(['mytext', 'user_id']);
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How to prevent buttons from submitting forms
...citly:
<button type="button">Button</button>
in order to override the default submit type. I just want to point out the reason why this happens.
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What does LayoutInflater in Android do?
What is the use of LayoutInflater in Android?
15 Answers
15
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Java lib or app to convert CSV to XML file? [closed]
...tworks.xstream.XStream;
public class CsvToXml {
public static void main(String[] args) {
String startFile = "./startData.csv";
String outFile = "./outData.xml";
try {
CSVReader reader = new CSVReader(new FileReader(startFile));
String[] li...
Picking a random element from a set
...le element and the data is stored in a HashSet.
– David Nehme
Sep 25 '08 at 2:00
8
@David Nehme: ...
PostgreSQL query to return results as a comma separated list
Let say you have a SELECT id from table query (the real case is a complex query) that does return you several results.
5 ...
Is it possible to clone html element objects in JavaScript / JQuery?
...avaScript using the cloneNode() method:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
documen...
Rails where condition using NOT NIL
...The canonical way to do this with Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 and above adds where.not so you can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id: nil })
When working with scopes between tables, I ...
How to change identity column values programmatically?
I have a MS SQL 2005 database with a table Test with column ID . ID is an identity column.
13 Answers
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