first version of db model

wagfarm-api/main.go

@@ -28,17 +28,19 @@ func initLogging() {
 }
 
 func dbMigration() {
-		database.DB.AutoMigrate(
+	database.DB.AutoMigrate(
 		&models.AssetType{},
 		&models.Asset{},
 		&models.LogType{},
 		&models.Log{},
 	)
-	
+
 	db.Create(&models.AssetType{Name: "machine"})
 	db.Create(&models.AssetType{Name: "field"})
 	db.Create(&models.AssetType{Name: "animal"})
 	db.Create(&models.AssetType{Name: "substance"})
+
+	err := db.SetupJoinTable(&models.Fertilizer{}, "Ingredients", &models.FertilizerIngredient{})
 }
 
 func main() {