Orgs: Remove dependency on dashboard table for deletion (#98501)

pkg/services/dashboards/database/database.go

@@ -667,6 +667,16 @@ func (d *dashboardStore) deleteDashboard(cmd *dashboards.DeleteDashboardCommand,
 	return nil
 }
 
+func (d *dashboardStore) DeleteAllDashboards(ctx context.Context, orgID int64) error {
+	ctx, span := tracer.Start(ctx, "dashboards.database.DeleteAllDashboards")
+	defer span.End()
+
+	return d.store.WithTransactionalDbSession(ctx, func(sess *db.Session) error {
+		_, err := sess.Where("org_id = ?", orgID).Delete(&dashboards.Dashboard{})
+		return err
+	})
+}
+
 // FIXME: Remove me and handle nested deletions in the service with the DashboardPermissionsService
 func (d *dashboardStore) deleteResourcePermissions(sess *db.Session, orgID int64, resourceScope string) error {
 	// retrieve all permissions for the resource scope and org id

pkg/services/dashboards/database/database_test.go

@@ -240,6 +240,32 @@ func TestIntegrationDashboardDataAccess(t *testing.T) {
 		require.NotContains(t, terms, "delete this")
 	})
 
+	t.Run("Should be able to delete all dashboards for an org", func(t *testing.T) {
+		setup()
+		dash1 := insertTestDashboard(t, dashboardStore, "delete me", 1, 0, "", false, "delete this")
+		dash2 := insertTestDashboard(t, dashboardStore, "delete me2", 1, 0, "", false, "delete this2")
+		dash3 := insertTestDashboard(t, dashboardStore, "dont delete me", 2, 0, "", false, "dont delete me")
+
+		err := dashboardStore.DeleteAllDashboards(context.Background(), 1)
+		require.NoError(t, err)
+
+		// no dashboards should exist for org 1
+		queryResult, err := dashboardStore.GetDashboards(context.Background(), &dashboards.GetDashboardsQuery{
+			OrgID:         1,
+			DashboardUIDs: []string{dash1.UID, dash2.UID},
+		})
+		require.NoError(t, err)
+		assert.Equal(t, len(queryResult), 0)
+
+		// but we should still have one for org 2
+		queryResult, err = dashboardStore.GetDashboards(context.Background(), &dashboards.GetDashboardsQuery{
+			OrgID:         2,
+			DashboardUIDs: []string{dash3.UID},
+		})
+		require.NoError(t, err)
+		assert.Equal(t, len(queryResult), 1)
+	})
+
 	t.Run("Should be able to create dashboard", func(t *testing.T) {
 		setup()
 		cmd := dashboards.SaveDashboardCommand{