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How to set default value for form field in Symfony2?
...atic methods personally.
Set Data before build form
In the constructors / service, you know if you have a new entity or if it was populated from the db. It's plausible therefore to call set data on the different fields when you grab a new entity. E.g.
if( ! $entity->isFromDB() ) {
$entity...
Why does one use dependency injection?
...u replace names a little bit, you end up with a simple implementation of a Service Locator, which is one of two patterns for Inversion of Control (since you invert control over who decides what exact class to instantiate).
All in all this reduces dependencies in your code, but now all your code has...
How to get Latitude and Longitude of the mobile device in android?
...
Use the LocationManager.
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();
The call to getLastKnownLo...
How do I disable directory browsing?
...save and exit the file, and restart apache server with this command:
sudo service httpd restart
(You have a guide with screenshots here.)
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What is the difference between Amazon S3 and Amazon EC2 instance?
...erver running PHP code and a database server.
Amazon S3 is just a storage service, typically used to store large binary files. Amazon also has other storage and database services, like RDS for relational databases and DynamoDB for NoSQL.
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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...
ahh, so you're saying that in my statement: (((((realService findAllPresentations) get) first) votes) size) must be equalTo 2 - get, first, votes and size are all postfix operators, because they take no parameters? so I wonder what must, be and equalTo are...
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How do I prevent site scraping? [closed]
...edicated scrapers who really want your data will set this up.
Webscraping services such as ScrapingHub or Kimono. In fact, there's people whose job is to figure out how to scrape your site and pull out the content for others to use.
Unsurprisingly, professional scraping services are the hardest to...
What's the difference between unit, functional, acceptance, and integration tests? [closed]
...
http://martinfowler.com/articles/microservice-testing/
Martin Fowler's blog post speaks about strategies to test code (Especially in a micro-services architecture) but most of it applies to any application.
I'll quote from his summary slide:
Unit tests -...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
... include authorities attribute
D/Finsky (32707): [716] PackageVerificationService.getPackageInfo: Cannot read archive for file:///data/local/tmp/foo.apk in request id=6
D/Finsky (32707): [1] PackageVerificationReceiver.onReceive: Verification requested, id = 6
W/ActivityManager( 360): No content ...
How do popular apps authenticate user requests from their mobile app to their server?
... or an automated script that is trying to gamify and take advantage of the service provided by the application.
Well, to identify the WHAT, developers tend to resort to an API key that usually they hard-code in the code of their mobile app. Some developers go the extra mile and compute the key at ru...