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Active Record - Find records which were created_at before today
... scope doesn't break the where chain. This means you can also do:
MyModel.custom_scope1.arel(:created_at, :lt, 2.days.ago).arel(:updated_at, :gt, 2.days.ago).custom_scope2
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Symfony 2 EntityManager injection in service
...erInterface;
class UserService
{
private $userRepository;
// use custom repository over direct use of EntityManager
// see step 2
public function __constructor(UserRepository $userRepository)
{
$this->userRepository = $userRepository;
}
public function getUs...
Unable to hide welcome screen in Emacs
...
You can easily do it through emac's menus...
Options -> customize emacs -> top-level customization group
then select environment group, then initialization, and set inhibit startup screen to on.
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C# difference between == and Equals()
...
Surely String implements a custom == operator. If it didn't then using == would not compare the content. So String is a bad example to use here, as it doesn't help us understand the general case where no custom operator has been defined.
...
Google Sheets API Setup · App Inventor 2 中文网
...o the second part of creating the
credentials. This part will allow you to customize the service account and
should look like the figure below.
The name of the service account is not important. For this tutorial, I will name
it “example-service.” You then set the role to Selecting Project > E...
What is code coverage and how do YOU measure it?
...udio has integrated tools to collect code coverage. You can also roll some custom tools, like this article describes.
If you are a C++ shop, Intel has some tools that run for Windows and Linux, though I haven't used them. I've also heard there's the gcov tool for GCC, but I don't know anything abou...
Do you use source control for your database items? [closed]
...re variations which will work equally well. The system is flexible, easily customizable, allows for fine-grained control over schema and data changes, and works very well as a best practice for database source control. The part which can be tricky and adds almost as much security as the rest of the...
iOS 7 - How to display a date picker in place in a table view?
...on method of the UIDatePicker will directly set the NSDate property of the custom table cell. In addition, this sample shows how to use NSDateFormatter class to achieve the custom cell's date-formatted appearance.
You can download the sample code here: DateCell.
...
Imitate Facebook hide/show expanding/contracting Navigation Bar
...ingBlock:^(UIBarButtonItem* item, NSUInteger i, BOOL *stop) {
item.customView.alpha = alpha;
}];
[self.navigationItem.rightBarButtonItems enumerateObjectsUsingBlock:^(UIBarButtonItem* item, NSUInteger i, BOOL *stop) {
item.customView.alpha = alpha;
}];
self.navigation...
Vertically centering Bootstrap modal window
...s the job : http://jsfiddle.net/sRmLV/1140/
It uses a helper-div and some custom css. No javascript or jQuery required.
HTML (based on Bootstrap's demo-code)
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Launch demo modal</button>
<!-- Modal --&...