From 1156010222a51643c7921aa953aad052e91b666c Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Sat, 29 Apr 2017 20:14:51 +0200
Subject: Add `DBShell::DatabaseClient`

A more generic interface to specific database adapter clients. This
class will act as a frontend to the others.

Calling its `.runshell()` will call the appropriate `.runshell()` for
the adapter provided in `connection_params`.

This way, we have a single entry point to start a database shell from
the Rake `dbshell` task.
---
 lib/dbshell/database_client.rb | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 lib/dbshell/database_client.rb

(limited to 'lib/dbshell/database_client.rb')

diff --git a/lib/dbshell/database_client.rb b/lib/dbshell/database_client.rb
new file mode 100644
index 0000000..8d55095
--- /dev/null
+++ b/lib/dbshell/database_client.rb
@@ -0,0 +1,15 @@
+class DBShell::DatabaseClient
+  def self.handler(connection_params)
+    case connection_params['adapter']
+    when 'sqlite3'
+      DBShell::Sqlite3Client
+    when 'postgresql'
+      DBShell::PostgresClient
+    else
+      raise DBShell::InvalidDatabaseAdapter
+    end
+  end
+end
+
+
+class DBShell::InvalidDatabaseAdapter < StandardError; end
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