Module: SQLite3::Record

Defined in:
lib/sqlite3/record.rb

Overview

manage SQLite3::Records

The SQLite3::Record module is able to generate classes that are optimized for a specific set of columns. It is build on top of Struct, which is way faster than Hashes, for example.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.for_columns(columns) ⇒ Object 



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# File 'lib/sqlite3/record.rb', line 52

def self.for_columns(columns)
  columns = columns.map(&:to_sym)

  @@classes ||= {}
  @@classes[columns] ||= begin
    struct = Struct.new(*columns)
    struct.extend SQLite3::Record::ClassMethods
    struct.include SQLite3::Record

    struct.columns = columns
    struct
  end
end

Instance Method Details

#to_a ⇒ Object 



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# File 'lib/sqlite3/record.rb', line 40

def to_a
  self.class.columns.map do |column| send(column) end
end

#to_hash ⇒ Object 



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# File 'lib/sqlite3/record.rb', line 44

def to_hash
  kvs = self.class.columns.inject([]) do |ary, column|
    ary << column << send(column)
  end

  Hash[*kvs]
end