Re: How to create instance of class that get data from 2 another instance?

[Tobias Pankrath via Digitalmars-d-learn]

On Friday, 2 January 2015 at 15:33:06 UTC, Suliman wrote:
Thanks! I will try!
D is my first compilable language, I wrote only some scripts 
without OO before.

So in my case your suggestion is best practice? Or there is any 
more simple way to pass config and data to MySQL class?

I think it's fine to have a global config instance. Alternatively 
you can pass the config to both the seismoDownlead and 
MySqlWhatever classes.

// there ist enforce(cond, msg) for this in 
std.exception/std.conv, dunno.
if (!exists(confpath))  throw new Exception("ERROR: config.ini do 
not exists");
// it becomes
enforce(exists(confpath), "ERROR: config.ini does not exist");