Add filter, add READMES

backend_go/graph_queries/registry.go

@@ -0,0 +1,27 @@
+package graph_queries
+
+const DefaultID = "default"
+
+var definitions = []Definition{
+	{Meta: Meta{ID: DefaultID, Label: "Default"}, EdgeQuery: defaultEdgeQuery},
+	{Meta: Meta{ID: "hierarchy", Label: "Hierarchy"}, EdgeQuery: hierarchyEdgeQuery},
+	{Meta: Meta{ID: "types", Label: "Types"}, EdgeQuery: typesOnlyEdgeQuery},
+}
+
+func List() []Meta {
+	out := make([]Meta, 0, len(definitions))
+	for _, d := range definitions {
+		out = append(out, d.Meta)
+	}
+	return out
+}
+
+func Get(id string) (Definition, bool) {
+	for _, d := range definitions {
+		if d.Meta.ID == id {
+			return d, true
+		}
+	}
+	return Definition{}, false
+}
+