updated decimal to 1.8

Author: zookzook

CHANGELOG.md

@@ -6,6 +6,7 @@
     * refactored usage of `ReadPreference`
     * added support for sessions (`ServerSession`, `SessionPool`, `Session`)
     * added support for transaction
+    * added Decimal128 encoder
 
 ## 0.5.7
 

README.md

@@ -22,14 +22,14 @@ for the individual options.
   * [x] Removed depreacated op codes ([See](https://docs.mongodb.com/manual/reference/mongodb-wire-protocol/#request-opcodes))
   * [x] Added `op_msg` support ([See](https://docs.mongodb.com/manual/reference/mongodb-wire-protocol/#op-msg))
   * [x] Added bulk writes ([See](https://github.com/mongodb/specifications/blob/master/source/crud/crud.rst#write))
-  * [ ] Add support for driver sessions ([See](https://github.com/mongodb/specifications/blob/master/source/sessions/driver-sessions.rst))
-  * [ ] Add support driver transactions ([See](https://github.com/mongodb/specifications/blob/master/source/transactions/transactions.rst))
+  * [x] Add support for driver sessions ([See](https://github.com/mongodb/specifications/blob/master/source/sessions/driver-sessions.rst))
+  * [x] Add support driver transactions ([See](https://github.com/mongodb/specifications/blob/master/source/transactions/transactions.rst))
   * [ ] Add support for `op_compressed` ([See](https://github.com/mongodb/specifications/blob/master/source/compression/OP_COMPRESSED.rst))
   * [ ] Because the driver is used in production environments, quick adjustments are necessary.
 
 ## Features
 
-  * Supports MongoDB versions 3.2, 3.4, 3.6, 4.0
+  * Supports MongoDB versions 3.2, 3.4, 3.6, 4.0, 4.2
   * Connection pooling ([through DBConnection 2.x](https://github.com/elixir-ecto/db_connection))
   * Streaming cursors
   * Performant ObjectID generation
@@ -57,6 +57,7 @@ for the individual options.
     symbol              "foo" (2)
     min key             :BSON_min
     max key             :BSON_max
+    decimal128          Decimal{}
 
 1) Since BSON documents are ordered Elixir maps cannot be used to fully represent them. This driver chose to accept both maps and lists of key-value pairs when encoding but will only decode documents to lists. This has the side-effect that it's impossible to discern empty arrays from empty documents. Additionally the driver will accept both atoms and strings for document keys but will only decode to strings.
 

lib/bson/decimal128.ex

@@ -42,8 +42,8 @@ defmodule BSON.Decimal128 do
     <<low::little-64, high::little-64>>
   end
 
-  def encode(%Decimal{sign: sign, coef: significand, exp: exponent}) do
-    message = "Exponent is out of range for Decimal128 encoding"
+  def encode(%Decimal{exp: exponent}) do
+    message = "Exponent is out of range for Decimal128 encoding, #{exponent}"
     raise ArgumentError, message
   end
 

mix.exs

@@ -38,7 +38,7 @@ defmodule Mongodb.Mixfile do
     [
       {:connection,    "~> 1.0"},
       {:db_connection, "~> 2.0.6"},
-      {:decimal,       "~> 1.5"},
+      {:decimal,       "~> 1.8"},
       {:benchee,       "~> 1.0", only: :dev},
       {:jason,         "~> 1.0.0", only: :test},
       {:ex_doc,        "~> 0.20.1 ", only: :dev},

mix.lock

@@ -2,7 +2,7 @@
   "benchee": {:hex, :benchee, "1.0.1", "66b211f9bfd84bd97e6d1beaddf8fc2312aaabe192f776e8931cb0c16f53a521", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, repo: "hexpm", optional: false]}], "hexpm"},
   "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], [], "hexpm"},
   "db_connection": {:hex, :db_connection, "2.0.6", "bde2f85d047969c5b5800cb8f4b3ed6316c8cb11487afedac4aa5f93fd39abfa", [:mix], [{:connection, "~> 1.0.2", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm"},
-  "decimal": {:hex, :decimal, "1.5.0", "b0433a36d0e2430e3d50291b1c65f53c37d56f83665b43d79963684865beab68", [:mix], [], "hexpm"},
+  "decimal": {:hex, :decimal, "1.8.0", "ca462e0d885f09a1c5a342dbd7c1dcf27ea63548c65a65e67334f4b61803822e", [:mix], [], "hexpm"},
   "deep_merge": {:hex, :deep_merge, "1.0.0", "b4aa1a0d1acac393bdf38b2291af38cb1d4a52806cf7a4906f718e1feb5ee961", [:mix], [], "hexpm"},
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.3.2", "b840562ea3d67795ffbb5bd88940b1bed0ed9fa32834915125ea7d02e35888a5", [:mix], [], "hexpm"},

test/mongo_test.exs

@@ -556,8 +556,8 @@ defmodule Mongo.Test do
   @tag :mongo_3_4
   test "correctly query NumberDecimal", c do
     coll = "number_decimal_test"
-    Mongo.insert_one(c.pid, coll, %{number: Decimal.new(123.456), index: 1})
-    Mongo.insert_one(c.pid, coll, %{number: Decimal.new(-123.456), index: 2})
+    Mongo.insert_one(c.pid, coll, %{number: Decimal.from_float(123.456), index: 1})
+    Mongo.insert_one(c.pid, coll, %{number: Decimal.from_float(-123.456), index: 2})
     assert %{"number" => %Decimal{coef: 123456, exp: -3}} = Mongo.find(c.pid, coll, %{index: 1}, limit: 1) |> Enum.to_list |> List.first()
     assert %{"number" => %Decimal{sign: -1, coef: 123456, exp: -3}} = Mongo.find(c.pid, coll, %{index: 2}, limit: 1) |> Enum.to_list |> List.first()
   end