Module: Sequel::DatasetQuery

Defined in:
lib/sequel/extensions/query.rb

Instance Method Summary collapse

Instance Method Details

#query(&block) ⇒ Object

Translates a query block into a dataset. Query blocks are an alternative to Sequel's usual method chaining, by using instance_exec with a proxy object:

dataset = DB[:items].query do
select :x, :y, :z
where{(x > 1) & (y > 2)}
reverse :z
end

Which is the same as:

dataset = DB.select(:x, :y, :z).where> 1) & (y > 2).reverse(:z)



53
54
55
56
57
 
# File 'lib/sequel/extensions/query.rb', line 53

def query(&block)
  query = Dataset::Query.new(self)
  query.instance_exec(&block)
  query.dataset
end