Merge branch 'master' into inserted_at-value

README.md

@@ -33,9 +33,16 @@ This module provides some helper functions to make it easy to insert and retriev
   ```
 
   ## Repo
+
+  You can set the repo you want Alog to use in a config file:
+
+  ``` elixir
+ config :alog, Alog,
+    repo: MyApp.Repo
+  ```
 
-  Alog expects your `Repo` to belong to the same base module as the schema.
-  So if your schema is `MyApp.User`, or `MyApp.Accounts.User`, your Repo should be `MyApp.Repo`.
+  If you do not explicitly set a Repo, Alog will try to find it using your application name.
+  So if your app is `MyApp` and your schema is `MyApp.User`, or `MyApp.Accounts.User`, your Repo should be `MyApp.Repo`.
 
   ## Uniqueness
 

lib/alog.ex

@@ -28,8 +28,13 @@ defmodule Alog do
         end
       end
 
-  Alog expects your `Repo` to belong to the same base module as the schema.
-  So if your schema is `MyApp.User`, or `MyApp.Accounts.User`, your Repo should be `MyApp.Repo`.
+  You can set the repo you want Alog to use in a config file:
+
+      config :alog, Alog,
+        repo: MyApp.Repo
+
+  If you do not explicitly set a Repo, Alog will try to find it using your application name.
+  So if your app is `MyApp` and your schema is `MyApp.User`, or `MyApp.Accounts.User`, your Repo should be `MyApp.Repo`.
 
   Any schema that uses Alog must include the fields `:deleted` of type `:boolean` and default false,
   and `:entry_id` of type `:string`.
@@ -61,7 +66,7 @@ defmodule Alog do
       import Ecto.Query
       import Ecto.Query.API, only: [field: 2]
 
-      @repo __MODULE__ |> Module.split() |> List.first() |> Module.concat("Repo")
+      @repo apply(unquote(__MODULE__), :get_repo, [__MODULE__])
 
       if not Map.has_key?(%__MODULE__{}, :deleted) || not is_boolean(%__MODULE__{}.deleted) do
         raise """
@@ -415,4 +420,16 @@ defmodule Alog do
       defoverridable Alog
     end
   end
+
+  def get_repo(module) do
+    with config when not is_nil(config) <- Application.get_env(:alog, Alog),
+         repo when not is_nil(repo) <- Keyword.get(config, :repo) do
+    else
+      _ ->
+        module
+        |> Module.split()
+        |> List.first()
+        |> Module.concat("Repo")
+    end
+  end
 end