module Sequel::Dataset::UnnumberedArgumentMapper

Default implementation for an argument mapper that uses unnumbered SQL placeholder arguments. Keeps track of which arguments have been used, and allows arguments to be used more than once.

Protected Instance Methods

map_to_prepared_args(bind_vars) click to toggle source

Returns a single output array mapping the values of the input hash. Keys in the input hash that are used more than once in the query have multiple entries in the output array.

# File lib/sequel/dataset/prepared_statements.rb, line 265
def map_to_prepared_args(bind_vars)
  prepared_args.map{|v| bind_vars[v]}
end

Private Instance Methods

prepared_arg(k) click to toggle source

Associates the argument with name k with the next position in the output array.

# File lib/sequel/dataset/prepared_statements.rb, line 273
def prepared_arg(k)
  prepared_args << k
  prepared_arg_placeholder
end
prepared_arg?(k) click to toggle source

Always assume there is a prepared arg in the argument mapper.

# File lib/sequel/dataset/prepared_statements.rb, line 279
def prepared_arg?(k)
  true
end