Luigi Thirty posted:

don't do it sulk the results will be worse than the DNA that makes up your dog

BONGHITZ posted:

what is a good thing to do for a database, i know nothing and dont want to read very much

Shaggar posted:

nononononononononono

MeruFM posted:

how much could a visual db creator gently caress up?

FamDav posted:

the frustrating part about c++ and c is that things can get needlessly tricky for no good reason.

if you want to help me out with a haskell question, i was thinking about writing a haskell implementation of our service interface for work. what i'd like is for the service to be a monad transformer so the actual service calls have to run in IO, but you could then mock services if you wanted to test code. So there would be something like a "NameService" monad which also implemented getName, and then you would have the NameServiceIO and NameServiceMock implementations of it.

does this all sound right so far? am i going off the rails?

AlsoD posted:

yeah I think you're right. For implementing NameServiceMock, look into free monads which are good for this sort of thing. check out http://www.reddit.com/r/haskell/comments/swffy/why_do_we_not_define_io_as_a_free_monad/ for more info - basically you make an ADT (called NameServiceF) with an option for each "IO" action you want to implement. and then something of type Free NameserviceF is a monad that collects the tree(?) of actions in a giant data structure which you then parse or interpret however you want

So all your functions would be of the form

code:

foo :: NameServiceMonad m => Butt -> m Fart
foo = ...

and then you can freely run it in real IO or fake IO whenever. did that make sense?

FamDav posted:

haskell in real life.

Shinku ABOOKEN posted:

yo

how do i do this but in java

C code:

function hello()
{
	Double myDouble = null;

	// the observer takes a reference to the variable
	Observer observer = new Observer(&myDouble);

	// check if the variable myDouble is null. in this case yes
	print(observer.isNull()); // true

	// change the value of myDouble and check for null again. this time its not
	myDouble = new Double(5.0);
	print(observer.isNull()); // false
}

is it even possible?

how would the constructor of Observer look like?

Shinku ABOOKEN posted:

sorry for the incoherent post above

what i wanted was basically C++ style reference variables. i want other objects to be able to see the current value stored in the variable at any time.

the problem is solved btw (i used a wrapper object).

Shaggar posted:

nononononononononono

Shinku ABOOKEN posted:

sorry for the incoherent post above

what i wanted was basically C++ style reference variables. i want other objects to be able to see the current value stored in the variable at any time.

the problem is solved btw (i used a wrapper object).

MeruFM posted:

you can make that externally visible variable "public"
or use a getter

Shinku ABOOKEN posted:

what i wanted was basically C++ style

Brain Candy posted:

you'll be happier if you pretend you don't know anything

Captain Foo posted:

BONGHITZ posted:

what is a good thing to do for a database, i know nothing and dont want to read very much

Brain Candy posted:

doin' it wrong, the post

Brain Candy posted:

you'll be happier if you pretend you don't know c++

Luigi Thirty posted:

wish you'd solve your x-y problem and z your way out of this thread

CISADMIN PRIVILEGE posted:

I'm trying to figure out the best way construct a search based on a web search form that searches a number of descriptive fields in a relatively well normalized sql server product database (Each non numerical form field is tied to its own lookup) How do I construct the search queries to return relevance ranked results. Preferably with weights assignable to each field (by me not the person doing the searching)

The search form would have options for things like price range, colour, style, features. As well as a keyword search which would search both simple fields and a plain text field.