fix inserts on empty lists ;(

Author: gbolo

db/insert_clusters.go

@@ -62,6 +62,10 @@ const insertCluster = `
 // Insert into database
 func (b *Backend) InsertClusters(clusters []common.Cluster) (err error) {
 
+	if len(clusters) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_datacenters.go

@@ -32,6 +32,10 @@ const insertDatacenter = `
 // InsertVMs inserts a vm into database
 func (b *Backend) InsertDatacenters(dcs []common.Datacenter) (err error) {
 
+	if len(dcs) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_datastores.go

@@ -43,6 +43,10 @@ const insertDatastore = `
 
 func (b *Backend) InsertDatastores(dss []common.Datastore) (err error) {
 
+	if len(dss) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_esxi.go

@@ -92,6 +92,10 @@ const insertEsxi = `
 // Insert into database
 func (b *Backend) InsertEsxi(esxis []common.Esxi) (err error) {
 
+	if len(esxis) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_folders.go

@@ -42,6 +42,10 @@ const insertFolders = `
 // Insert into database
 func (b *Backend) InsertFolders(folders []common.Folder) (err error) {
 
+	if len(folders) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_portgroups.go

@@ -38,6 +38,10 @@ const insertPortgroup = `
 // Insert into database
 func (b *Backend) InsertPortgroups(portgroups []common.Portgroup) (err error) {
 
+	if len(portgroups) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_resourcepools.go

@@ -64,6 +64,10 @@ const insertResourcepool = `
 // Insert into database
 func (b *Backend) InsertResourcepools(resourcepools []common.ResourcePool) (err error) {
 
+	if len(resourcepools) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_vdisks.go

@@ -50,6 +50,10 @@ const insertVDisk = `
 // Insert into database
 func (b *Backend) InsertVDisks(vdisks []common.VDisk) (err error) {
 
+	if len(vdisks) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_virtualmachine.go

@@ -98,6 +98,10 @@ const insertVm = `
 // InsertVirtualmachines inserts a vm into database
 func (b *Backend) InsertVirtualmachines(vms []common.VirtualMachine) (err error) {
 
+	if len(vms) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {

db/insert_vnics.go

@@ -44,6 +44,10 @@ const insertVNics = `
 // Insert into database
 func (b *Backend) InsertVNics(vnics []common.VNic) (err error) {
 
+	if len(vnics) == 0 {
+		return
+	}
+
 	// exit if there is no database connection
 	err = b.checkDB()
 	if err != nil {