How a Library Should Work

[eluser]Majd Taby[/eluser]
It depends on how you want to package it. The MVC design doesn't have a letter for "libraries" as we know them in CI...as such, it's really up to the developer. If I am to release a library that interacts with the database, I would not use a model or rely on the application. The reason is that it makes the installation easier, and it makes the code more centralized. Granted, if the library does a lot, you may consider splitting it up into the parts so you don't have a single 4000 line file.