I am using SqlAlchemy and I used to access database directly from
business layer directly by calling SqlAlchemy API.
But then I found that would cause too much time to run all my test
cases and now I think maybe I should create a DB access layer, so I
can use mock objects during test instead of access database directly.
I think there are 2 choices to do that :
1.
use a single class which contains a DB connection and many
methods like addUser/delUser/updateUser, addBook/delBook/updateBook.
But this means this class will be very large.
2.
Another approach is create different manager classes like
"UserManager", "BookManager". But that means I have to pass a list of
managers to Business layer, which seems a little Cumbersome.
How will you organize a database layer?
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