Method: Mongoid::Relations::Builders::NestedAttributes::Many#build

Defined in:
lib/mongoid/relations/builders/nested_attributes/many.rb

#build(parent) ⇒ Array

Builds the relation depending on the attributes and the options passed to the macro.

This attempts to perform 3 operations, either one of an update of the existing relation, a replacement of the relation with a new document, or a removal of the relation.

Examples:

Build the nested attrs.

many.build(person)

Parameters:

  • parent (Document) —

    The parent document of the relation.

Returns:

  • (Array) —

    The attributes.



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# File 'lib/mongoid/relations/builders/nested_attributes/many.rb', line 21

def build(parent)
  @existing = parent.send(metadata.name)
  if over_limit?(attributes)
    raise Errors::TooManyNestedAttributeRecords.new(existing, options[:limit])
  end
  attributes.each do |attrs|
    if attrs.respond_to?(:with_indifferent_access)
      process(parent, attrs)
    else
      process(parent, attrs[1])
    end
  end
end