mongoid 4.0 config

mongoid.yml

## :write
#  -1 : Don't verify writes and raise no network errors
#   0 : Don't verify writes and raise network errors
#   1 : Verify writes on the primary node. (default)
#   n : Verify writes on n number of nodes.
#
## :read
#  :primary : Will always read from a primary node. (default)
#  :primary_preferred : Attempt a primary first, then secondary if none available.
#  :secondary : Will always read from a secondary node.
#  :secondary_preferred : Attempt a secondary first, then primary if none available.
#  :nearest : Attempt to read from the node with the lowest latency.
#
session_options: &default_session_options
  write: { w: 1 }
  read: :primary
  max_retries: 10
  retry_interval: 0.5

environment_options: &default_options
  include_root_in_json: false
  include_type_for_serialization: false
  preload_models: false
  raise_not_found_error: true
  scope_overwrite_exception: false
  use_activesupport_time_zone: true
  use_utc: false

development:
  sessions:
    default:
      database: development
      hosts:
        - localhost:27017
      options:
        <<: *default_session_options
  options:
    <<: *default_options

test:
  sessions:
    default:
      database: <%= ENV['DBNAME'] || 'test' %>
      hosts:
        - localhost:27017
      options:
        <<: *default_session_options
        max_retries: 5
        retry_interval: 0
  options:
    <<: *default_options

all: &redefined
  sessions:
    default:
      uri: 'redefine on deploy'
      options:
        <<: *default_session_options
  options:
    <<: *default_options
staging:
  <<: &redefined
production:
  <<: &redefined