First commit

model/category.go

@@ -0,0 +1,51 @@
+// Copyright 2017 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package model
+
+import (
+	"errors"
+	"fmt"
+)
+
+type Category struct {
+	ID        int64  `json:"id,omitempty"`
+	Title     string `json:"title,omitempty"`
+	UserID    int64  `json:"user_id,omitempty"`
+	FeedCount int    `json:"nb_feeds,omitempty"`
+}
+
+func (c *Category) String() string {
+	return fmt.Sprintf("ID=%d, UserID=%d, Title=%s", c.ID, c.UserID, c.Title)
+}
+
+func (c Category) ValidateCategoryCreation() error {
+	if c.Title == "" {
+		return errors.New("The title is mandatory")
+	}
+
+	if c.UserID == 0 {
+		return errors.New("The userID is mandatory")
+	}
+
+	return nil
+}
+
+func (c Category) ValidateCategoryModification() error {
+	if c.Title == "" {
+		return errors.New("The title is mandatory")
+	}
+
+	if c.UserID == 0 {
+		return errors.New("The userID is mandatory")
+	}
+
+	if c.ID == 0 {
+		return errors.New("The ID is mandatory")
+	}
+
+	return nil
+}
+
+type Categories []*Category