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
+}

repositories/tagRepository.go

@@ -0,0 +1,83 @@
+package repositories
+
+import(
+	"strconv"
+
+	"gorm.io/gorm"
+
+	"example.com/gin/test/models"
+)	
+
+type TagRepository interface {
+	Create(models.Tag) (models.Tag, error)	
+	GetAll() ([]models.Tag, error)
+	GetById(string) (models.Tag, error)
+	//GetByShopItemId(string) (models.Tag, error)
+	Update(models.Tag) (models.Tag, error)
+	DeleteById(string) error
+}
+
+type GORMTagRepository struct {
+	DB *gorm.DB
+}
+
+func NewGORMTagRepository(db *gorm.DB) TagRepository {
+	return &GORMTagRepository{
+		DB: db,
+	}
+}
+
+func (t *GORMTagRepository) Create(tag models.Tag) (models.Tag, error) {
+	result := t.DB.Create(&tag)
+
+	if result.Error != nil {
+		return models.Tag{}, result.Error	
+	}
+
+	return tag, nil
+}
+
+
+func (t *GORMTagRepository) GetAll() ([]models.Tag, error) {
+	var tags []models.Tag
+	result := t.DB.Find(&tags)
+
+	return tags, result.Error
+}
+
+func (t *GORMTagRepository) GetById(id string) (models.Tag, error) {
+	tagId, err := strconv.Atoi(id)
+
+	if err != nil {
+		return models.Tag{}, err
+	}
+
+	var tag models.Tag
+	result := t.DB.First(&tag, uint(tagId))
+
+	if result.Error != nil {
+		return models.Tag{}, result.Error
+	}
+
+	return tag, nil
+}
+
+func (t *GORMTagRepository) Update(tag models.Tag) (models.Tag, error) {
+	result := t.DB.Save(&tag)
+	if result.Error != nil {
+		return models.Tag{}, result.Error
+	}
+
+	return tag, nil
+}
+
+func (t *GORMTagRepository) DeleteById(id string) error {
+	tagId, err := strconv.Atoi(id)
+
+	if err != nil {
+		return err
+	}
+
+	result := t.DB.Delete(&models.Tag{}, tagId)
+	return result.Error
+}