add tag rep

models/tag.go

@@ -0,0 +1,40 @@
+package models
+
+import (
+	"fmt"
+	"gorm.io/gorm"
+	"github.com/gin-gonic/gin"
+)
+
+type Tag struct {
+	gorm.Model
+	Name string `json:"name" binding:"required" gorm:"unique;not null"`
+	ShopItems []ShopItem `gorm:"many2many:item_tags;"`
+}
+
+func NewTag(ctx *gin.Context) (Tag, error) {
+	name := ctx.PostForm("name")
+
+  // Convert the price string to float64
+	tag := Tag{
+		Name: name,
+	}
+
+	if name == "" {
+		return Tag{}, fmt.Errorf("Name or description empty")
+	}
+
+	return tag, nil
+}
+
+
+func NewTagByJson(ctx *gin.Context) (Tag, error) {
+	var tag Tag
+	err := ctx.ShouldBindJSON(&tag)
+	
+	if err != nil {
+		return Tag{}, err
+	}
+	
+	return tag, nil
+}