Add column support

pkg/table/mapper.go

@@ -0,0 +1,35 @@
+package table
+
+import (
+	"github.com/rancher/naok/pkg/attributes"
+	"github.com/rancher/norman/pkg/data"
+	"github.com/rancher/norman/pkg/types"
+)
+
+type Column struct {
+	Name  string `json:"name,omitempty"`
+	Field string `json:"field,omitempty"`
+	Type  string `json:"type,omitempty"`
+}
+
+type Table struct {
+	Columns  []Column
+	Computed func(data.Object)
+}
+
+type ColumnMapper struct {
+	definition Table
+	types.EmptyMapper
+}
+
+func (t *ColumnMapper) FromInternal(d data.Object) {
+	d.Map("metadata").Set("columns", t.definition.Columns)
+	if t.definition.Computed != nil {
+		t.definition.Computed(d)
+	}
+}
+
+func (t *ColumnMapper) ModifySchema(schema *types.Schema, schemas *types.Schemas) error {
+	attributes.SetColumns(schema, t.definition.Columns)
+	return nil
+}