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class Records

A buffer of records.

Definitions

def self.wrap(result)

Wrap a database result into a Records instance.

Signature
parameter　result　Object

The database result object with field_count, field_names, and to_a methods.

returns　Records, Nil

A Records instance or nil if there are no columns.

Implementation

 
def self.wrap(result)
	# We want to avoid extra memory allocations when there are no columns:
	if result.field_count == 0
		return nil
	end
	
	return self.new(result.field_names, result.to_a)
end

def initialize(columns, rows)

Initialize a new Records instance with columns and rows.

Signature
parameter　columns　Array

Array of column names.

parameter　rows　Array

Array of row data.

Implementation

 
def initialize(columns, rows)
	@columns = columns
	@rows = rows
end

def freeze

Freeze the Records instance and its internal data structures.

Signature
returns　Records

The frozen Records instance.

Implementation

 
def freeze
	return self if frozen?
	
	@columns.freeze
	@rows.freeze
	
	super
end

def to_a

Get the rows as an array.

Signature
returns　Array

The array of row data.

Implementation

 
def to_a
	@rows
end