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MySQL ON vs USING?
...Id,city,hasAirport) values (6,"Monaco",false);
-- Gah. Left outer join is now effectively an inner join
-- because of the where predicate
select *
from country left join city using (countryId)
where hasAirport
;
-- Hooray! I can see Monaco again thanks to
-- moving my predicate into the ON
sele...
Entity Framework DateTime and UTC
...ue(entity, DateTime.SpecifyKind(dt.Value, attr.Kind));
}
}
}
Now hook that attribute up to your EF context:
public class MyContext : DbContext
{
public DbSet<Foo> Foos { get; set; }
public MyContext()
{
((IObjectContextAdapter)this).ObjectContext.ObjectMater...
What are the rules for the “…” token in the context of variadic templates?
...t side of ... is repeated — the unpacked patterns (call them expressions now) are separated by comma ,.
It can be best understood by some examples. Suppose you have this function template:
template<typename ...T> //pack
void f(T ... args) //pack
{
// here are unpack patterns
g( a...
client secret in OAuth 2.0
... is even part in the spec that distributed apps should not use this token. Now you might ask, but XYZ requires it in order to work. In that case they are not implementing the spec properly and you should A not use that service (not likely) or B try to secure token using some obfuscating methods to m...
Codesign error: Provisioning profile cannot be found after deleting expired profile
...om iTunes. When I chose a new profile (one with an * in the identifier), I now get an error:
16 Answers
...
Should I be using object literals or constructor functions?
...;
};
A class like this also acts like a schema for your data object: You now have some sort of contract (through the constructor) what properties the object initializes/contains. A free literal is just an amorphous blob of data.
You might as well have an external verify function that acts on a pl...
In git, what is the difference between merge --squash and rebase?
...of squash using --commit explicitly.
git/git builtin/merge.c#cmd_merge() now includes:
if (option_commit > 0)
die(_("You cannot combine --squash with --commit."));
git rebase --interactive
replays some or all of your commits on a new base, allowing you to squash (or more recently "f...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
...t I need a controller deriving from ApiController, but that's about all I know.
9 Answers
...
How to test Spring Data repositories?
...tion parts of the repository are written in a way that they don't have to know about Spring Data JPA. They are plain Spring beans that get an EntityManager injected. You might of course wanna try to mock the interactions with it but to be honest, unit-testing the JPA has not been a too pleasant expe...
SET versus SELECT when assigning variables?
...d hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the ...