From 00ae8968f7e7c89aac87d300b615a786b4c57221 Mon Sep 17 00:00:00 2001
From: jeffgrunewald <jeff@grunewalddesign.com>
Date: Tue, 14 Apr 2020 20:28:44 -0400
Subject: [PATCH] deletes are idempotent

---
 README.md                            | 2 +-
 lib/brook/storage/postgres/query.ex  | 2 +-
 mix.exs                              | 2 +-
 test/brook/storage/postgres_test.exs | 1 +
 4 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index c745710..dba8ede 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ to your mix.exs file.
 ```elixir
 def deps do
   [
-    {:brook_storage_postgres, "~> 0.1.0"}
+    {:brook_storage_postgres, "~> 0.1.1"}
   ]
 end
 ```
diff --git a/lib/brook/storage/postgres/query.ex b/lib/brook/storage/postgres/query.ex
index f78cea6..3067925 100644
--- a/lib/brook/storage/postgres/query.ex
+++ b/lib/brook/storage/postgres/query.ex
@@ -65,7 +65,7 @@ defmodule Brook.Storage.Postgres.Query do
           :ok | {:error, Brook.reason()}
   def postgres_delete(conn, view_table, collection, key) do
     case Postgrex.query(conn, delete_stmt(view_table), [collection, key]) do
-      {:ok, %Postgrex.Result{num_rows: 1, rows: nil}} -> :ok
+      {:ok, %Postgrex.Result{num_rows: rows, rows: nil}} when rows in [0, 1] -> :ok
       error_result -> error_result
     end
   end
diff --git a/mix.exs b/mix.exs
index 41d2352..04946f7 100644
--- a/mix.exs
+++ b/mix.exs
@@ -6,7 +6,7 @@ defmodule BrookStoragePostgres.MixProject do
   def project do
     [
       app: :brook_storage_postgres,
-      version: "0.1.0",
+      version: "0.1.1",
       elixir: "~> 1.8",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
diff --git a/test/brook/storage/postgres_test.exs b/test/brook/storage/postgres_test.exs
index 9f193ef..60ffe84 100644
--- a/test/brook/storage/postgres_test.exs
+++ b/test/brook/storage/postgres_test.exs
@@ -192,6 +192,7 @@ defmodule Brook.Storage.PostgresTest do
       assert {:ok, "value1"} == Postgres.get(@instance, "people", "key1")
 
       :ok = Postgres.delete(@instance, "people", "key1")
+      assert :ok = Postgres.delete(@instance, "people", "key1")
       assert {:ok, nil} == Postgres.get(@instance, "people", "key1")
       assert {:ok, []} == Postgres.get_events(@instance, "people", "key1")
     end