Fix spanner database iam binding import

google-beta/iam_spanner_database.go

@@ -6,7 +6,7 @@ import (
 	"github.com/hashicorp/errwrap"
 	"github.com/hashicorp/terraform/helper/schema"
 	"google.golang.org/api/cloudresourcemanager/v1"
-	spanner "google.golang.org/api/spanner/v1"
+	"google.golang.org/api/spanner/v1"
 )
 
 var IamSpannerDatabaseSchema = map[string]*schema.Schema{
@@ -51,17 +51,8 @@ func NewSpannerDatabaseIamUpdater(d *schema.ResourceData, config *Config) (Resou
 }
 
 func SpannerDatabaseIdParseFunc(d *schema.ResourceData, config *Config) error {
-	id, err := extractSpannerDatabaseId(d.Id())
-	if err != nil {
-		return err
-	}
-	d.Set("instance", id.Instance)
-	d.Set("project", id.Project)
-	d.Set("database", id.Database)
-
-	// Explicitly set the id so imported resources have the same ID format as non-imported ones.
-	d.SetId(id.terraformId())
-	return nil
+	_, err := resourceSpannerDatabaseImport("database")(d, config)
+	return err
 }
 
 func (u *SpannerDatabaseIamUpdater) GetResourceIamPolicy() (*cloudresourcemanager.Policy, error) {

google-beta/resource_spanner_database.go

@@ -2,12 +2,10 @@ package google
 
 import (
 	"fmt"
+	"github.com/hashicorp/terraform/helper/schema"
 	"log"
 	"net/http"
 	"regexp"
-	"strings"
-
-	"github.com/hashicorp/terraform/helper/schema"
 
 	"google.golang.org/api/googleapi"
 	"google.golang.org/api/spanner/v1"
@@ -23,7 +21,7 @@ func resourceSpannerDatabase() *schema.Resource {
 		Read:   resourceSpannerDatabaseRead,
 		Delete: resourceSpannerDatabaseDelete,
 		Importer: &schema.ResourceImporter{
-			State: resourceSpannerDatabaseImport,
+			State: resourceSpannerDatabaseImport("name"),
 		},
 
 		Schema: map[string]*schema.Schema{
@@ -137,34 +135,41 @@ func resourceSpannerDatabaseDelete(d *schema.ResourceData, meta interface{}) err
 	return nil
 }
 
-func resourceSpannerDatabaseImport(d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
-	config := meta.(*Config)
-	err := parseImportId([]string{
-		"projects/(?P<project>[^/]+)/instances/(?P<instance>[^/]+)/databases/(?P<name>[^/]+)",
-		"instances/(?P<instance>[^/]+)/databases/(?P<name>[^/]+)",
-		"(?P<project>[^/]+)/(?P<instance>[^/]+)/(?P<name>[^/]+)",
-		"(?P<instance>[^/]+)/(?P<name>[^/]+)",
-	}, d, config)
-	if err != nil {
-		return nil, fmt.Errorf("Error constructing id: %s", err)
-	}
+func resourceSpannerDatabaseImport(databaseField string) schema.StateFunc {
+	return func(d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
+		config := meta.(*Config)
+		err := parseImportId([]string{
+			fmt.Sprintf("projects/(?P<project>[^/]+)/instances/(?P<instance>[^/]+)/databases/(?P<%s>[^/]+)", databaseField),
+			fmt.Sprintf("instances/(?P<instance>[^/]+)/databases/(?P<%s>[^/]+)", databaseField),
+			fmt.Sprintf("(?P<project>[^/]+)/(?P<instance>[^/]+)/(?P<%s>[^/]+)", databaseField),
+			fmt.Sprintf("(?P<instance>[^/]+)/(?P<%s>[^/]+)", databaseField),
+		}, d, config)
+		if err != nil {
+			return nil, fmt.Errorf("Error constructing id: %s", err)
+		}
 
-	id, err := buildSpannerDatabaseId(d, config)
-	if err != nil {
-		return nil, fmt.Errorf("Error constructing id: %s", err)
-	}
+		id, err := buildSpannerDatabaseId(d, config)
+		if err != nil {
+			return nil, fmt.Errorf("Error constructing id: %s", err)
+		}
 
-	d.SetId(id.terraformId())
+		d.SetId(id.terraformId())
 
-	return []*schema.ResourceData{d}, nil
+		return []*schema.ResourceData{d}, nil
+	}
 }
 
 func buildSpannerDatabaseId(d *schema.ResourceData, config *Config) (*spannerDatabaseId, error) {
 	project, err := getProject(d, config)
 	if err != nil {
 		return nil, err
 	}
-	dbName := d.Get("name").(string)
+	database, ok := d.GetOk("name")
+	if !ok {
+		database = d.Get("database")
+	}
+
+	dbName := database.(string)
 	instanceName := d.Get("instance").(string)
 
 	return &spannerDatabaseId{
@@ -196,18 +201,6 @@ func (s spannerDatabaseId) databaseUri() string {
 	return fmt.Sprintf("%s/databases/%s", s.parentInstanceUri(), s.Database)
 }
 
-func extractSpannerDatabaseId(id string) (*spannerDatabaseId, error) {
-	if !regexp.MustCompile(fmt.Sprintf("^%s/[a-z0-9-]+/%s$", ProjectRegex, spannerDatabaseNameFormat)).Match([]byte(id)) {
-		return nil, fmt.Errorf("Invalid spanner id format, expecting {projectId}/{instanceId}/{databaseId}")
-	}
-	parts := strings.Split(id, "/")
-	return &spannerDatabaseId{
-		Project:  parts[0],
-		Instance: parts[1],
-		Database: parts[2],
-	}, nil
-}
-
 func validateResourceSpannerDatabaseName(v interface{}, k string) (ws []string, errors []error) {
 	value := v.(string)