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Running a specific test case in Django when your app has a tests directory
... a method called build_test(label) that figures out what test cases to run based on the label. Looking into this method it turns out they're doing a getattr() on either the "models" or "test" module. This means if you return a suite the test runner isn't looking for your test cases in that suite, ...
What issues should be considered when overriding equals and hashCode in Java?
....age).
isEquals();
}
}
Also remember:
When using a hash-based Collection or Map such as HashSet, LinkedHashSet, HashMap, Hashtable, or WeakHashMap, make sure that the hashCode() of the key objects that you put into the collection never changes while the object is in the collection...
How to move columns in a MySQL table?
... Have in mind that changed order will not be reflected in database SQL dumps.
– skalee
Jun 16 '15 at 4:07
3
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Are email addresses case sensitive?
...actice though, no widely used mail systems distinguish different addresses based on case.
The part after the @ sign however is the domain and according to RFC 1035, section 3.1,
"Name servers and resolvers must compare [domains] in a case-insensitive manner"
In short, you are safe to treat e...
Scrollview vertical and horizontal in android
...ew", I thought I should add this here. Matt Clark has built a custom view based on the Android source, and it seems to work perfectly: Two Dimensional ScrollView
Beware that the class in that page has a bug calculating the view's horizonal width. A fix by Manuel Hilty is in the comments:
Solut...
How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
...
@dev_feed In terms of database design I don't see the link back to be beneficial, but using the example above the link back could simplify finding a student given an address.
– edhedges
Sep 6 '14 at 23:23
...
String.IsNullOrWhiteSpace in LINQ Expression
...pe))
);
return exp;
}
return base.VisitMethodCall(node);
}
}
public static class EfQueryableExtensions
{
public static IQueryable<T> WhereEx<T>(this IQueryable<T> queryable, Expression<Func<T, bool>> where)
{
...
Detecting 'stealth' web-crawlers
...l rules to block offenders. It included whitelists of IP addresses/ranges based on http://www.iplists.com/, which were then updated automatically as needed by checking claimed user-agent strings and, if the client claimed to be a legitimate spider but not on the whitelist, it performed DNS/reverse-...
How to generate and validate a software license key?
...cause they don't have the private key. A license key would look like this: BASE32(CONCAT(DATA, PRIVATE_KEY_ENCRYPTED(HASH(DATA))))
The biggest challenge here is that the classical public key algorithms have large signature sizes. RSA512 has an 1024-bit signature. You don't want your license keys to ...
Why are my basic Heroku apps taking two seconds to load?
...cations. Your app is allotted blocks of computing power. Heroku partitions based on resource demand. When you have a popular application that demands more power, you can pay for more 'dynos' (application containers) and then get a larger chunk of the pie in return.
In your case though, you are run...