more work on dashboard snapshots

pkg/services/sqlstore/migrations/dashboard_snapshot_mig.go

@@ -0,0 +1,24 @@
+package migrations
+
+import . "github.com/grafana/grafana/pkg/services/sqlstore/migrator"
+
+func addDashboardSnapshotMigrations(mg *Migrator) {
+	snapshotV3 := Table{
+		Name: "dashboard_snapshot",
+		Columns: []*Column{
+			{Name: "id", Type: DB_BigInt, IsPrimaryKey: true, IsAutoIncrement: true},
+			{Name: "name", Type: DB_NVarchar, Length: 255, Nullable: false},
+			{Name: "key", Type: DB_NVarchar, Length: 255, Nullable: false},
+			{Name: "dashboard", Type: DB_Text, Nullable: false},
+			{Name: "expires", Type: DB_DateTime, Nullable: false},
+			{Name: "created", Type: DB_DateTime, Nullable: false},
+			{Name: "updated", Type: DB_DateTime, Nullable: false},
+		},
+		Indices: []*Index{
+			{Cols: []string{"key"}, Type: UniqueIndex},
+		},
+	}
+
+	mg.AddMigration("create dashboard_snapshot table v3", NewAddTableMigration(snapshotV3))
+	addTableIndicesMigrations(mg, "v3", snapshotV3)
+}

pkg/services/sqlstore/migrations/migrations.go

@@ -15,6 +15,7 @@ func AddMigrations(mg *Migrator) {
 	addDashboardMigration(mg)
 	addDataSourceMigration(mg)
 	addApiKeyMigrations(mg)
+	addDashboardSnapshotMigrations(mg)
 }
 
 func addMigrationLogMigrations(mg *Migrator) {