Gentleman, I stumbled onto this one in my code, and despite trying all the
possible combinations I could think of, no dice.
I have this simple type hierarchy:
abstract Model
type Package <: Model
type Repo <: Model
The Model type is an ORM and it defines a series of methods that operate on
Model subtypes.
ex:
function save{T<:Model}(m::T)
So far so good.
Now, according to ORM architecture and design patterns, an instance of a
subtype represents a table row, while the class itself represents the
table. And of course there are plenty of such methods.
For instance, the find_one_by function, which takes the type itself (the
table).
function find_one_by(m, column_name::SQLColumn, value::SQLInput) # this
works, with m::Any
The question is, how can I define this method so that it accepts all the
types of the subtypes of Model?
I tried multiple combinations, such as:
function find_one_by{T<:Type{Model}}(m::T, column_name::SQLColumn,
value::SQLInput)
none was good. :( Any ideas?