getModel（），getSingleton（）和getResourceModel（）之间的区别？

Question

From many days I was searching the differences between getModel(), getResourceModel() and getSingleton(). But could not cleared up the facts. Could you please help over this ?

Which one is the best for magento optimization ?

Answer 1

simply put:

• GetModel is used for busuiness logic, it retrieves a new instance from a class.

• getSingleton is same, except it retrieves a single existing object.

• getReosurceModel is used to interact with the database.

Those are not used for optimization, every Model has a different "meaning". I prefer instantiating every model once and then working with them. If you have a model with existing vars and values and you need them in the further course of programming, then you should make use of the singleton pattern.

HTH,

MageZeus