Make repository reflect Config changes by adding a Connect method

repository/connector.go

@@ -2,23 +2,40 @@ package repository
 
 import (
 	"database/sql"
+	"errors"
 
 	_ "github.com/lib/pq"
 )
 
 const driver = "postgres"
 
+// ErrNotConnected is returned when the database connection has never been attempted
+var ErrNotConnected = errors.New("repository: Database connection was never established")
+
+var connector *DatabaseConnector
+
 // DatabaseConnector holds a connection to the database
 type DatabaseConnector struct {
 	*sql.DB
 }
 
-// NewDatabaseConnector opens a new database connection with the given uri
-func NewDatabaseConnector(uri string) (*DatabaseConnector, error) {
-	connection, err := sql.Open(driver, uri)
+// GetConnector gets the stored database connection
+func GetConnector() *DatabaseConnector {
+	if connector == nil {
+		panic(ErrNotConnected)
+	}
+
+	return connector
+}
+
+// Connect connects to the database
+func Connect() (*DatabaseConnector, error) {
+	connectorCandidate, err := initDatabaseConnector()
 	if err != nil {
 		return nil, err
 	}
 
-	return &DatabaseConnector{connection}, connection.Ping()
+	connector = connectorCandidate
+
+	return connector, nil
 }