Class: DataMapper::Query::Conditions::AndOperation

Inherits:

AbstractOperation

• Object
• AbstractOperation
• DataMapper::Query::Conditions::AndOperation

Includes:

FlattenOperation

Defined in:

lib/dm-core/query/conditions/operation.rb

Overview

module FlattenOperation

Instance Attribute Summary

Attributes inherited from AbstractOperation

#operands, #parent

Instance Method Summary

• #matches?(record) ⇒ true

  Match the record.

• #minimize ⇒ self, ...

  Minimize the operation.

Methods included from FlattenOperation

#<<

Methods inherited from AbstractOperation

#<<, #clear, descendants, #difference, #each, #empty?, #first, inherited, #intersection, #merge, #negated?, #one?, #slug, slug, #sorted_operands, #to_s, #union, #valid?

Methods included from Equalizer

#equalize

Methods included from Assertions

#assert_kind_of

Instance Method Details

#matches?(record) ⇒ true

Match the record

Examples:

with a Hash

operation.matches?({ :id => 1 })  # => true

with a Resource

operation.matches?(Blog::Article.new(:id => 1))  # => true

Parameters:

• record (Resource, Hash) —

  the resource to match

Returns:

• (true) —

  true if the record matches, false if not

# File 'lib/dm-core/query/conditions/operation.rb', line 460

def matches?(record)
  all? { |op| op.respond_to?(:matches?) ? op.matches?(record) : true }
end

#minimize ⇒ self, ...

Minimize the operation

Returns:

• (self) —

  the minimized AndOperation

• (AbstractOperation, AbstractComparison, Array) —

  the minimized operation

# File 'lib/dm-core/query/conditions/operation.rb', line 472

def minimize
  minimize_operands

  return Operation.new(:null) if any? && all? { |op| op.nil? }

  prune_operands

  one? ? first : self
end