構成

rails g mongoid:config

config.generators do |g|
  g.orm :mongoid
end

# Use automatically detected environment name
Mongoid.load!("path/to/your/mongoid.yml")
# Specify environment name manually
Mongoid.load!("path/to/your/mongoid.yml", :production)

Mongoid.configure do |config|
  config.clients.default = {
    hosts: ['localhost:27017'],
    database: 'my_db',
  }
  config.log_level = :warn
end

development:
  # Configure available database clients. (required)
  clients:
    # Defines the default client. (required)
    default:
      # Mongoid can connect to a URI accepted by the driver:
      # uri: mongodb://user:password@mongodb.domain.com:27017/my_db_development
      # Otherwise define the parameters separately.
      # This defines the name of the default database that Mongoid can connect to.
      # (required).
      database: my_db_development
      # Provides the hosts the default client can connect to. Must be an array
      # of host:port pairs. (required)
      hosts:
        - localhost:27017
      options:
        # Note that all options listed below are Ruby driver client options (the mongo gem).
        # Please refer to the driver documentation of the version of the mongo gem you are using
        # for the most up-to-date list of options.
        # Change the default write concern. (default = { w: 1 })
        # write:
        #   w: 1
        # Change the default read preference. Valid options for mode are: :secondary,
        # :secondary_preferred, :primary, :primary_preferred, :nearest
        # (default: primary)
        # read:
        #   mode: :secondary_preferred
        #   tag_sets:
        #     - use: web
        # The name of the user for authentication.
        # user: 'user'
        # The password of the user for authentication.
        # password: 'password'
        # The user's database roles.
        # roles:
        #   - 'dbOwner'
        # Change the default authentication mechanism. Valid options include:
        # :scram, :scram256, :mongodb_cr, :mongodb_x509, :gssapi, :aws, :plain.
        # MongoDB Server defaults to :scram, which will use "SCRAM-SHA-256" if available,
        # otherwise fallback to "SCRAM-SHA-1" (:scram256 will always use "SCRAM-SHA-256".)
        # This setting is handled by the MongoDB Ruby Driver. Please refer to:
        # https://mongodb.com/ja-jp/docs/ruby-driver/current/reference/authentication/
        # auth_mech: :scram
        # The database or source to authenticate the user against.
        # (default: the database specified above or admin)
        # auth_source: admin
        # Force a the driver cluster to behave in a certain manner instead of auto-
        # discovering. Can be one of: :direct, :replica_set, :sharded. Set to :direct
        # when connecting to hidden members of a replica set.
        # connect: :direct
        # Changes the default time in seconds the server monitors refresh their status
        # via hello commands. (default: 10)
        # heartbeat_frequency: 10
        # The time in seconds for selecting servers for a near read preference. (default: 0.015)
        # local_threshold: 0.015
        # The timeout in seconds for selecting a server for an operation. (default: 30)
        # server_selection_timeout: 30
        # The maximum number of connections in the connection pool. (default: 5)
        # max_pool_size: 5
        # The minimum number of connections in the connection pool. (default: 1)
        # min_pool_size: 1
        # The time to wait, in seconds, in the connection pool for a connection
        # to be checked in before timing out. (default: 5)
        # wait_queue_timeout: 5
        # The time to wait to establish a connection before timing out, in seconds.
        # (default: 10)
        # connect_timeout: 10
        # How long to wait for a response for each operation sent to the
        # server. This timeout should be set to a value larger than the
        # processing time for the longest operation that will be executed
        # by the application. Note that this is a client-side timeout;
        # the server may continue executing an operation after the client
        # aborts it with the SocketTimeout exception.
        # (default: nil, meaning no timeout)
        # socket_timeout: 5
        # The name of the replica set to connect to. Servers provided as seeds that do
        # not belong to this replica set will be ignored.
        # replica_set: name
        # Compressors to use for wire protocol compression. (default is to not use compression)
        # "zstd" requires zstd-ruby gem. "snappy" requires snappy gem.
        # Refer to: https://www.mongodb.com/ja-jp/docs/ruby-driver/current/reference/create-client/#compression
        # compressors: ["zstd", "snappy", "zlib"]
        # Whether to connect to the servers via ssl. (default: false)
        # ssl: true
        # The certificate file used to identify the connection against MongoDB.
        # ssl_cert: /path/to/my.cert
        # The private keyfile used to identify the connection against MongoDB.
        # Note that even if the key is stored in the same file as the certificate,
        # both need to be explicitly specified.
        # ssl_key: /path/to/my.key
        # A passphrase for the private key.
        # ssl_key_pass_phrase: password
        # Whether to do peer certification validation. (default: true)
        # ssl_verify: true
        # The file containing concatenated certificate authority certificates
        # used to validate certs passed from the other end of the connection.
        # ssl_ca_cert: /path/to/ca.cert
        # Whether to truncate long log lines. (default: true)
        # truncate_logs: true
  # Configure Mongoid-specific options. (optional)
  options:
    # Allow BSON::Decimal128 to be parsed and returned directly in
    # field values. When BSON 5 is present and the this option is set to false
    # (the default), BSON::Decimal128 values in the database will be returned
    # as BigDecimal.
    #
    # @note this option only has effect when BSON 5+ is present. Otherwise,
    #   the setting is ignored.
    # allow_bson5_decimal128: false
    # Application name that is printed to the MongoDB logs upon establishing
    # a connection. Note that the name cannot exceed 128 bytes in length.
    # It is also used as the database name if the database name is not
    # explicitly defined. (default: nil)
    # app_name: nil
    # When this flag is false, callbacks for embedded documents will not be
    # called. This is the default in 9.0.
    #
    # Setting this flag to true restores the pre-9.0 behavior, where callbacks
    # for embedded documents are called. This may lead to stack overflow errors
    # if there are more than cicrca 1000 embedded documents in the root
    # document's dependencies graph.
    # See https://jira.mongodb.org/browse/MONGOID-5658 for more details.
    # around_callbacks_for_embeds: false
    # Sets the async_query_executor for the application. By default the thread pool executor
    # is set to `:immediate`. Options are:
    #
    #   - :immediate - Initializes a single +Concurrent::ImmediateExecutor+
    #   - :global_thread_pool - Initializes a single +Concurrent::ThreadPoolExecutor+
    #      that uses the +async_query_concurrency+ for the +max_threads+ value.
    # async_query_executor: :immediate
    # Mark belongs_to associations as required by default, so that saving a
    # model with a missing belongs_to association will trigger a validation
    # error.
    # belongs_to_required_by_default: true
    # Set the global discriminator key.
    # discriminator_key: "_type"
    # Raise an exception when a field is redefined.
    # duplicate_fields_exception: false
    # Defines how many asynchronous queries can be executed concurrently.
    # This option should be set only if `async_query_executor` is set
    # to `:global_thread_pool`.
    # global_executor_concurrency: nil
    # When this flag is true, any attempt to change the _id of a persisted
    # document will raise an exception (`Errors::ImmutableAttribute`).
    # This is the default in 9.0. Setting this flag to false restores the
    # pre-9.0 behavior, where changing the _id of a persisted
    # document might be ignored, or it might work, depending on the situation.
    # immutable_ids: true
    # Include the root model name in json serialization.
    # include_root_in_json: false
    # # Include the _type field in serialization.
    # include_type_for_serialization: false
    # Whether to join nested persistence contexts for atomic operations
    # to parent contexts by default.
    # join_contexts: false
    # When this flag is false (the default as of Mongoid 9.0), a document that
    # is created or loaded will remember the storage options that were active
    # when it was loaded, and will use those same options by default when
    # saving or reloading itself.
    #
    # When this flag is true you'll get pre-9.0 behavior, where a document will
    # not remember the storage options from when it was loaded/created, and
    # subsequent updates will need to explicitly set up those options each time.
    #
    # For example:
    #
    #    record = Model.with(collection: 'other_collection') { Model.first }
    #
    # This will try to load the first document from 'other_collection' and
    # instantiate it as a Model instance. Pre-9.0, the record object would
    # not remember that it came from 'other_collection', and attempts to
    # update it or reload it would fail unless you first remembered to
    # explicitly specify the collection every time.
    #
    # As of Mongoid 9.0, the record will remember that it came from
    # 'other_collection', and updates and reloads will automatically default
    # to that collection, for that record object.
    # legacy_persistence_context_behavior: false
    # When this flag is false, a document will become read-only only once the
    # #readonly! method is called, and an error will be raised on attempting
    # to save or update such documents, instead of just on delete. When this
    # flag is true, a document is only read-only if it has been projected
    # using #only or #without, and read-only documents will not be
    # deletable/destroyable, but they will be savable/updatable.
    # When this feature flag is turned on, the read-only state will be reset on
    # reload, but when it is turned off, it won't be.
    # legacy_readonly: false
    # The log level.
    #
    # It must be set prior to referencing clients or Mongo.logger,
    # changes to this option are not be propagated to any clients and
    # loggers that already exist.
    #
    # Additionally, only when the clients are configured via the
    # configuration file is the log level given by this option honored.
    # log_level: :info
    # Store BigDecimals as Decimal128s instead of strings in the db.
    # map_big_decimal_to_decimal128: true
    # Preload all models in development, needed when models use inheritance.
    # preload_models: false
    # When this flag is true, callbacks for every embedded document will be
    # called only once, even if the embedded document is embedded in multiple
    # documents in the root document's dependencies graph.
    # This is the default in 9.0. Setting this flag to false restores the
    # pre-9.0 behavior, where callbacks are called for every occurrence of an
    # embedded document. The pre-9.0 behavior leads to a problem that for multi
    # level nested documents callbacks are called multiple times.
    # See https://jira.mongodb.org/browse/MONGOID-5542
    # prevent_multiple_calls_of_embedded_callbacks: true
    # Raise an error when performing a #find and the document is not found.
    # raise_not_found_error: true
    # Raise an error when defining a scope with the same name as an
    # existing method.
    # scope_overwrite_exception: false
    # Return stored times as UTC.
    # use_utc: false
  # Configure Driver-specific options. (optional)
  driver_options:
    # When this flag is off, an aggregation done on a view will be executed over
    # the documents included in that view, instead of all documents in the
    # collection. When this flag is on, the view filter is ignored.
    # broken_view_aggregate: true
    # When this flag is set to false, the view options will be correctly
    # propagated to readable methods.
    # broken_view_options: true
    # When this flag is set to true, the update and replace methods will
    # validate the parameters and raise an error if they are invalid.
    # validate_update_replace: false

Mongoid.configure do |config|
  config.load_defaults <OLD VERSION>
end

Mongoid.configure do |config|
  config.load_defaults 7.5
end

Mongoid.configure do |config|
  config.load_defaults 7.5
  config.legacy_attributes = false
  # config.map_big_decimal_to_decimal128 = true
end

Mongoid.configure do |config|
  config.load_defaults 8.0
end

development:
  clients:
    default:
      uri: "<%= ENV['MONGODB_URI'] %>"

# Ruby driver logger, not Mongoid logger
Mongoid.client(:default).logger

cp /usr/share/zoneinfo/UTC /etc/localtime

# If using Rails, in application.rb:
class Application < Rails::Application
  config.time_zone = 'UTC'
end
# If not using Rails:
Time.zone = 'UTC'

class ApplicationController < ActionController::Base
  before_filter :fetch_user,
                :set_time_zone
  def set_time_zone
    Time.zone = @user.time_zone
  end
end

Turned into a pumpkin after <%= cinderella.updated_at.seconds_after_midnight %> seconds!

Mongo.tls_context_hooks.push(
  Proc.new { |context|
    context.ciphers = ["AES256-SHA"]
  }
)
# Only the AES256-SHA cipher will be enabled from this point forward

development:
  # Configure available database clients. (required)
  clients:
    # Define the default client. (required)
    default:
      # ...
      options:
        # These options are Ruby driver options, documented in
        # https://mongodb.com/ja-jp/docs/ruby-driver/current/reference/create-client/
        # ...
        # Compressors to use. (default is to not use compression)
        # Valid values are zstd, zlib or snappy - or any combination of the three
        compressors: ["zstd", "snappy"]

development:
  clients:
    default:
      database: blog_development
      hosts: [localhost:27017]
      options:
        auto_encryption_options:
          key_vault_namespace: 'keyvault.datakeys'
          kms_providers:
            local:
              key: "z7iYiYKLuYymEWtk4kfny1ESBwwFdA58qMqff96A8ghiOcIK75lJGPUIocku8LOFjQuEgeIP4xlln3s7r93FV9J5sAE7zg8U"
          schema_map:
            blog_development.comments:
              properties:
                message:
                  encrypt:
                    keyId:
                      - !ruby/object:BSON::Binary
                        data: !binary |-
                          R/AgNcxASFiiJWKXqWGo5w==
                        type: :uuid
                    bsonType: "string"
                    algorithm: "AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic"
              bsonType: "object"

development:
  clients:
    default:
      database: mongoid
      hosts:
        - localhost:27017
      options:
        server_selection_timeout: 1