✨ init project

model/common/basetypes.go

@@ -0,0 +1,43 @@
+package common
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+)
+
+type JSONMap map[string]interface{}
+
+func (m JSONMap) Value() (driver.Value, error) {
+	if m == nil {
+		return nil, nil
+	}
+	return json.Marshal(m)
+}
+
+func (m *JSONMap) Scan(value interface{}) error {
+	if value == nil {
+		*m = make(map[string]interface{})
+		return nil
+	}
+	var err error
+	switch value.(type) {
+	case []byte:
+		err = json.Unmarshal(value.([]byte), m)
+	case string:
+		err = json.Unmarshal([]byte(value.(string)), m)
+	default:
+		err = errors.New("basetypes.JSONMap.Scan: invalid value type")
+	}
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+type TreeNode[T any] interface {
+	GetChildren() []T
+	SetChildren(children T)
+	GetID() int
+	GetParentID() int
+}