Added GetIdentityImage by image name

images/database.go

@@ -45,7 +45,26 @@ func (d *Database) GetIdentityImages() ([]*IdentityImage, error) {
 	return iis, nil
 }
 
-func (d *Database) StoreIdentityImages(iis []IdentityImage)  (err error) {
+func (d *Database) GetIdentityImage(it string) (*IdentityImage, error) {
+	query := "SELECT type, image_payload, width, height, file_size, resize_target FROM identity_images WHERE type = ?"
+	rows, err := d.db.Query(query, it)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var ii IdentityImage
+	for rows.Next() {
+		err = rows.Scan(&ii.Type, &ii.Payload, &ii.Width, &ii.Height, &ii.FileSize, &ii.ResizeTarget)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return &ii, nil
+}
+
+func (d *Database) StoreIdentityImages(iis []IdentityImage) (err error) {
 	tx, err := d.db.BeginTx(context.Background(), &sql.TxOptions{})
 	if err != nil {
 		return

images/database_test.go

@@ -58,6 +58,56 @@ func TestDatabase_GetIdentityImages(t *testing.T) {
 	require.Exactly(t, expected, string(joiis))
 }
 
+func TestDatabase_GetIdentityImage(t *testing.T) {
+	db, stop := setupTestDB(t)
+	defer stop()
+
+	iis := []IdentityImage{
+		{
+			Type:         "thumbnail",
+			Payload:      testJpegBytes,
+			Width:        80,
+			Height:       80,
+			FileSize:     256,
+			ResizeTarget: 80,
+		},
+		{
+			Type:         "large",
+			Payload:      testPngBytes,
+			Width:        240,
+			Height:       300,
+			FileSize:     1024,
+			ResizeTarget: 240,
+		},
+	}
+
+	cs := []struct{
+		Name string
+		Expected string
+	}{
+		{
+			"thumbnail",
+			`{"type":"thumbnail","uri":"data:image/jpeg;base64,/9j/2wCEAFA3PEY8MlA=","width":80,"height":80,"file_size":256,"resize_target":80}`,
+		},
+		{
+			"large",
+			`{"type":"large","uri":"data:image/png;base64,iVBORw0KGgoAAAANSUg=","width":240,"height":300,"file_size":1024,"resize_target":240}`,
+		},
+	}
+
+	err := db.StoreIdentityImages(iis)
+	require.NoError(t, err)
+
+	for _, c := range cs {
+		oii, err := db.GetIdentityImage(c.Name)
+		require.NoError(t, err)
+
+		joii, err := json.Marshal(oii)
+		require.NoError(t, err)
+		require.Exactly(t, c.Expected, string(joii))
+	}
+}
+
 func TestIdentityImage_GetDataURI(t *testing.T) {
 	cs := []struct{
 		II IdentityImage