Module: Mongoid::Config::Defaults

Included in:
Mongoid::Config
Defined in:
build/mongoid-8.1/lib/mongoid/config/defaults.rb

Overview

Encapsulates logic for loading defaults.

Instance Method Summary collapse

Instance Method Details

#load_defaults(version) ⇒ Object

Load the defaults for the feature flags in the given Mongoid version. Note that this method will load the new functionality introduced in the given Mongoid version.

raises [ ArgumentError ] if an invalid version is given.

Parameters:

  • The (String | Float) —

    version number as X.y.



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# File 'build/mongoid-8.1/lib/mongoid/config/defaults.rb', line 16

def load_defaults(version)
  # Note that for 7.x, since all of the feature flag defaults have been
  # flipped to the new functionality, all of the settings for those
  # versions are to give old functionality. Because of this, it is
  # possible to recurse to later version to get all of the options to
  # turn off. Note that this won't be true when adding feature flags to
  # 9.x, since the default will be the old functionality until the next
  # major version is released. More likely, the recursion will have to go
  # in the other direction (towards earlier versions).

  case version.to_s
  when "7.3"
    # flags introduced in 7.4 - old functionality
    self.broken_aggregables = true
    self.broken_alias_handling = true
    self.broken_and = true
    self.broken_scoping = true
    self.broken_updates = true
    self.compare_time_by_ms = false
    self.legacy_pluck_distinct = true
    self.legacy_triple_equals = true
    self.object_id_as_json_oid = true

    load_defaults "7.4"
  when "7.4"
    # flags introduced in 7.5 - old functionality
    self.legacy_attributes = true
    self.overwrite_chained_operators = true

    load_defaults "7.5"
  when "7.5"
    # flags introduced in 8.0 - old functionality
    self.map_big_decimal_to_decimal128 = false
  when "8.0"
    # All flag defaults currently reflect 8.0 behavior.
  when "8.1"
    # flags introduced in 8.1 - new functionality
    self.legacy_readonly = false
  else
    raise ArgumentError, "Unknown version: #{version}"
  end
end