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In a django model custom save() method, how should you identify a new object?
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Not all models have an id attribute, i.e. a model extending another through a models.OneToOneField(OtherModel, primary_key=True). I think you need to use self.pk
– AJP
Apr 9 '13 at 10:21
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How to make a JTable non-editable
...blic class MyModel extends AbstractTableModel{
//not necessary
}
actually isCellEditable() is false by default so you may omit it. (see: http://docs.oracle.com/javase/6/docs/api/javax/swing/table/AbstractTableModel.html)
Then use the setModel() method of your JTable.
JTable myTable = new JTa...
How can I round a number in JavaScript? .toFixed() returns a string?
...th full accuracy) in binary floating-point systems.
For example, 0.1 is really 0.1000000000000000055511151231257827021181583404541015625, and 0.01 is really 0.01000000000000000020816681711721685132943093776702880859375. (Thanks to BigDecimal for proving my point. :-P)
Therefore (absent a decimal f...
What is the facade design pattern?
... design pattern is a common way of solving a recurring problem. Classes in all design patterns are just normal classes. What is important is how they are structured and how they work together to solve a given problem in the best possible way.
The Facade design pattern simplifies the interface to a...
How can I configure NetBeans to insert tabs instead of a bunch of spaces?
...herent values for "Number of Spaces per indent" and "Tab Size".
Additionally, you can check all the items in the Language combo and make sure they all use the general setting.
You can also change it in a per-project fashion. Right click on the project icon, select Properties and review the For...
Searching for UUIDs in text with regex
...blocks of text using a regex. Currently I'm relying on the assumption that all UUIDs will follow a patttern of 8-4-4-4-12 hexadecimal digits.
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Do you have to restart apache to make re-write rules in the .htaccess take effect?
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No:
Apache allows for decentralized management of configuration via special files placed inside the web tree. The special files are usually called .htaccess, but any name can be specified in the AccessFileName directive... Since .htacce...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
...ut this, but I gave up in the end, as the rules are somewhat diffuse. Basically, you’ll have to get the hang of it.
Perhaps it is best to concentrate on where curly braces and parenthesis can be used interchangeably: when passing parameters to method calls. You may replace parenthesis with curly b...
Stop caching for PHP 5.5.3 in MAMP
Installed MAMP on a new Macbook with PHP 5.5.3.
9 Answers
9
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Using DNS to redirect to another URL with a path [closed]
...mail.foo.com"
under Properties -> Static Website Hosting, set "redirect all requests to: mail.google.com/a/foo.com"
in route53, create an A record "mail.foo.com"
enable "alias", and set alias target to the "mail.foo.com" bucket
not a pure DNS solution, but it works ;)
But be aware of, the redi...