Fixes + stable gateway ids

api/pkg/model/chainasset.go

@@ -16,11 +16,11 @@ type ChainAsset struct {
 }
 
 type ChainAssetDescription struct {
-	storable.Storable `bson:",inline" json:",inline"`
-	Describable       `bson:",inline" json:",inline"`
-	Asset             ChainAsset `bson:"asset" json:"asset"`
+	storable.Base `bson:",inline" json:",inline"`
+	Describable   `bson:",inline" json:",inline"`
+	Asset         ChainAsset `bson:"asset" json:"asset"`
 }
 
-func Collection(*ChainAssetDescription) mservice.Type {
+func (*ChainAssetDescription) Collection() string {
 	return mservice.ChainAssets
 }

api/pkg/model/chainasset_test.go

@@ -0,0 +1,21 @@
+package model
+
+import (
+	"testing"
+
+	"github.com/tech/sendico/pkg/db/storable"
+	"github.com/tech/sendico/pkg/mservice"
+)
+
+func TestChainAssetDescriptionImplementsStorable(t *testing.T) {
+	var _ storable.Storable = (*ChainAssetDescription)(nil)
+}
+
+func TestChainAssetDescriptionCollection(t *testing.T) {
+	var desc ChainAssetDescription
+	want := string(mservice.ChainAssets)
+	if got := desc.Collection(); got != want {
+		t.Fatalf("Collection() = %q, want %q", got, want)
+	}
+}
+