module Sequel::Dataset::ArgumentMapper
Default implementation of the argument mapper to allow native database support for bind variables and prepared statements (as opposed to the emulated ones used by default).
Attributes
bind_arguments[RW]
The bind arguments to use for running this prepared statement
prepared_statement_name[RW]
The name of the prepared statement, if any.
Public Instance Methods
call(bind_vars={}, &block)
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Set the bind arguments based on the hash and call super.
# File lib/sequel/dataset/prepared_statements.rb, line 22 def call(bind_vars={}, &block) ds = bind(bind_vars) ds.prepared_sql ds.bind_arguments = ds.map_to_prepared_args(ds.opts[:bind_vars]) ds.run(&block) end
prepared_sql()
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Override the given *_sql method based on the type, and cache the result of the sql.
Calls superclass method
# File lib/sequel/dataset/prepared_statements.rb, line 31 def prepared_sql return @prepared_sql if @prepared_sql @prepared_args ||= [] @prepared_sql = super @opts[:sql] = @prepared_sql @prepared_sql end