chore: adding api(get) regencies in examples

examples/api-go/dtos/response.go

@@ -1,5 +1,10 @@
 package dtos
 
+type ApiDTO struct {
+	Code string `json:"code"`
+	Name string `json:"name"`
+}
+
 type ResponseDTO struct {
 	Pagination PaginationDTO `json:"pagination"`
 	Data       interface{}   `json:"data"`

examples/api-go/handlers/handler.go

@@ -0,0 +1,11 @@
+package handlers
+
+import "gorm.io/gorm"
+
+type Handler struct {
+	db *gorm.DB
+}
+
+func NewHandler(db *gorm.DB) *Handler {
+	return &Handler{db}
+}

examples/api-go/handlers/provinces_handler.go

@@ -7,17 +7,8 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/yuefii/NusantaraKita/examples/api-go/dtos"
 	"github.com/yuefii/NusantaraKita/examples/api-go/models"
-	"gorm.io/gorm"
 )
 
-type Handler struct {
-	db *gorm.DB
-}
-
-func NewHandler(db *gorm.DB) *Handler {
-	return &Handler{db}
-}
-
 func (handler *Handler) GetProvinces(ctx *gin.Context) {
 	var province []models.Provinces
 	var totalItems int64
@@ -49,9 +40,9 @@ func (handler *Handler) GetProvinces(ctx *gin.Context) {
 		}
 		totalItems = int64(len(province))
 
-		var provinceDTOs []dtos.ProvinceDTO
+		var provinceDTOs []dtos.ApiDTO
 		for _, r := range province {
-			provinceDTOs = append(provinceDTOs, dtos.ProvinceDTO{
+			provinceDTOs = append(provinceDTOs, dtos.ApiDTO{
 				Code: r.Code,
 				Name: r.Name,
 			})
@@ -76,9 +67,9 @@ func (handler *Handler) GetProvinces(ctx *gin.Context) {
 		return
 	}
 
-	var provinceDTOs []dtos.ProvinceDTO
+	var provinceDTOs []dtos.ApiDTO
 	for _, response := range province {
-		provinceDTOs = append(provinceDTOs, dtos.ProvinceDTO{
+		provinceDTOs = append(provinceDTOs, dtos.ApiDTO{
 			Code: response.Code,
 			Name: response.Name,
 		})

examples/api-go/handlers/regencies_handler.go

@@ -0,0 +1,95 @@
+package handlers
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	"github.com/yuefii/NusantaraKita/examples/api-go/dtos"
+	"github.com/yuefii/NusantaraKita/examples/api-go/models"
+)
+
+func (handler *Handler) GetRegencies(ctx *gin.Context) {
+	var regency []models.Regencies
+	var totalItems int64
+
+	showAll := ctx.Query("show_all") == "true"
+	pageStr := ctx.Query("page")
+	perPageStr := ctx.Query("per_page")
+
+	page := 1
+	perPage := 10
+
+	if pageStr != "" {
+		if p, err := strconv.Atoi(pageStr); err == nil && p > 0 {
+			page = p
+		}
+	}
+
+	if perPageStr != "" {
+		if pp, err := strconv.Atoi(perPageStr); err == nil && pp > 0 {
+			perPage = pp
+		}
+	}
+
+	if showAll {
+
+		result := handler.db.Find(&regency)
+		if result.Error != nil {
+			ctx.JSON(http.StatusInternalServerError, gin.H{"error": result.Error.Error()})
+			return
+		}
+		totalItems = int64(len(regency))
+
+		var regenciesDTOs []dtos.ApiDTO
+		for _, response := range regency {
+			regenciesDTOs = append(regenciesDTOs, dtos.ApiDTO{
+				Code: response.Code,
+				Name: response.Name,
+			})
+		}
+
+		response := gin.H{
+			"data": regenciesDTOs,
+		}
+
+		ctx.JSON(http.StatusOK, response)
+		return
+	}
+
+	result := handler.db.Model(&models.Regencies{}).Count(&totalItems)
+	if result.Error != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": result.Error.Error()})
+		return
+	}
+
+	result = handler.db.Offset((page - 1) * perPage).Limit(perPage).Find(&regency)
+	if result.Error != nil {
+		ctx.JSON(http.StatusInternalServerError, gin.H{"error": result.Error.Error()})
+		return
+	}
+
+	var regenciesDTOs []dtos.ApiDTO
+	for _, response := range regency {
+		regenciesDTOs = append(regenciesDTOs, dtos.ApiDTO{
+			Code: response.Code,
+			Name: response.Name,
+		})
+	}
+
+	totalPages := int(totalItems) / perPage
+	if int(totalItems)%perPage != 0 {
+		totalPages++
+	}
+
+	response := dtos.ResponseDTO{
+		Data: regenciesDTOs,
+		Pagination: dtos.PaginationDTO{
+			CurrentPage: page,
+			PerPage:     perPage,
+			TotalItems:  int(totalItems),
+			TotalPages:  totalPages,
+		},
+	}
+	ctx.JSON(http.StatusOK, response)
+}

examples/api-go/models/regencies.go

@@ -0,0 +1,7 @@
+package models
+
+type Regencies struct {
+	Code         string `gorm:"column:code"`
+	ProvinceCode string `gorm:"column:province_code"`
+	Name         string `gorm:"column:name"`
+}

examples/api-go/routes/router.go

@@ -10,4 +10,5 @@ func SetupRoutes(router *gin.Engine, db *gorm.DB) {
 	handler := handlers.NewHandler(db)
 
 	router.GET("/api/provinces", handler.GetProvinces)
+	router.GET("/api/regencies", handler.GetRegencies)
 }