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Spring Data: “delete by” is supported?
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Typically, in an application, you will have @ Service classes/methods and those will be calling the Repositories. And @ Service public methods should be the methods that are marked @ Transactional because transactions are Use Cas...
Getting the name of a child class in the parent class (static context)
...rc).
class Base {
public static function whoAmI() {
return get_called_class();
}
}
class User extends Base {}
print Base::whoAmI(); // prints "Base"
print User::whoAmI(); // prints "User"
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What is HEAD in Git?
...ific revision that is not associated with a branch name. This situation is called a detached HEAD.
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Handling optional parameters in javascript
...r second argument is a function or not:
function getData (id, parameters, callback) {
if (arguments.length == 2) { // if only two arguments were supplied
if (Object.prototype.toString.call(parameters) == "[object Function]") {
callback = parameters;
}
}
//...
}
You can also u...
Python - List of unique dictionaries
...in string form is JSON format. And Python has a built-in module for JSON (called json of course).
The remaining problem is that the elements in a dict are not ordered, and when Python converts the dict to a JSON string, you might get two JSON strings that represent equivalent dictionaries but are ...
Trigger change event of dropdown
....trigger('change');
});
You must declare the change event handler before calling trigger() or change() otherwise it won't be fired. Thanks for the mention @LenielMacaferi.
More information here.
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Confused about __str__ on list in Python [duplicate]
...t uses str() for the list itself, but the implementation of list.__str__() calls repr() for the individual items.
So you should also overwrite __repr__(). A simple
__repr__ = __str__
at the end of the class body will do the trick.
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How to get last N records with activerecord?
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Calling #find(:all) is deprecated. Call #all directly instead.
– Snowcrash
Jun 29 '13 at 17:50
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How to access parent Iframe from JavaScript
Well, I have an IFrame, which calls a same domain page.
My problem is that I want to access some information from this parent Iframe from this called page (from JavaScript). How can I access this Iframe?
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Fragments onResume from back stack
...ible to the user) after poping out of the backstack, I'd like some kind of callback to be activated within the fragment (to perform certain changes on a shared UI resource, for instance).
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