Module | Sequel::DatasetQuery |
In: |
lib/sequel/extensions/query.rb
|
Translates a query block into a dataset. Query blocks are an alternative to Sequel‘s usual method chaining, by using instance_eval with a proxy object:
dataset = DB[:items].query do select :x, :y, :z filter{(x > 1) & (y > 2)} reverse :z end
Which is the same as:
dataset = DB[:items].select(:x, :y, :z).filter{(x > 1) & (y > 2)}.reverse(:z)
# File lib/sequel/extensions/query.rb, line 55 55: def query(&block) 56: query = Dataset::Query.new(self) 57: query.instance_eval(&block) 58: query.dataset 59: end