The column name holding the position in the list, as a symbol.
A proc that scopes the dataset, so that there can be multiple positions in the list, but the positions are unique with the scoped dataset. This proc should accept an instance and return a dataset representing the list.
Copy the position_field
and scope_proc
to the
subclass.
# File lib/sequel/plugins/list.rb, line 82 def inherited(subclass) super subclass.position_field = position_field subclass.scope_proc = scope_proc end