Add Tenant entity, migration, seeder, and JSON data for tenants

database/entities/tenant_entity.go

@@ -0,0 +1,12 @@
+package entities
+
+import (
+	"github.com/google/uuid"
+)
+
+type Tenant struct {
+	ID   uuid.UUID `gorm:"type:uuid;primary_key;default:uuid_generate_v4()" json:"id"`
+	Name string    `gorm:"type:varchar(100);not null" json:"name"`
+
+	Timestamp
+}

database/migration.go

@@ -9,6 +9,7 @@ func Migrate(db *gorm.DB) error {
 	if err := db.AutoMigrate(
 		&entities.User{},
 		&entities.RefreshToken{},
+		&entities.Tenant{},
 	); err != nil {
 		return err
 	}

database/seeder.go

@@ -6,9 +6,16 @@ import (
 )
 
 func Seeder(db *gorm.DB) error {
-	if err := seeds.ListUserSeeder(db); err != nil {
+	seeders := []func(*gorm.DB) error{
+		seeds.ListUserSeeder,
+		seeds.ListTenantSeeder,
+	}
+
+	for _, seeder := range seeders {
+		if err := seeder(db); err != nil {
 			return err
 		}
+	}
 
 	return nil
 }

database/seeders/json/tenants.json

@@ -0,0 +1,8 @@
+[
+  {
+    "name": "Tenant A"
+  },
+  {
+    "name": "Tenant B"
+  }
+]

database/seeders/seeds/tenant_seed.go

@@ -0,0 +1,52 @@
+package seeds
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"os"
+
+	"github.com/Caknoooo/go-gin-clean-starter/database/entities"
+	"gorm.io/gorm"
+)
+
+func ListTenantSeeder(db *gorm.DB) error {
+	jsonFile, err := os.Open("./database/seeders/json/tenants.json")
+	if err != nil {
+		return err
+	}
+
+	jsonData, err := io.ReadAll(jsonFile)
+	if err != nil {
+		return err
+	}
+
+	var listTenant []entities.Tenant
+	if err := json.Unmarshal(jsonData, &listTenant); err != nil {
+		return err
+	}
+
+	hasTable := db.Migrator().HasTable(&entities.Tenant{})
+	if !hasTable {
+		if err := db.Migrator().CreateTable(&entities.Tenant{}); err != nil {
+			return err
+		}
+	}
+
+	for _, data := range listTenant {
+		var tenant entities.Tenant
+		err := db.Where(&entities.Tenant{Name: data.Name}).First(&tenant).Error
+		if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+			return err
+		}
+
+		isData := db.Find(&tenant, "name = ?", data.Name).RowsAffected
+		if isData == 0 {
+			if err := db.Create(&data).Error; err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}