feat: new models, sorting fix

internal/services/customer.go

@@ -0,0 +1,69 @@
+package services
+
+import (
+	"app/internal/dal"
+	"app/internal/database"
+	"app/internal/models"
+	"app/internal/utils"
+	"errors"
+	"gorm.io/gen/field"
+	"gorm.io/gorm"
+)
+
+type CustomerService struct {
+}
+type Customer = models.Customer
+
+func (service *CustomerService) Create(item Customer) (Customer, error) {
+	utils.ReplaceEmptySlicesWithNil(&item)
+	err := dal.Customer.Create(&item)
+	if err != nil {
+		return item, err
+	}
+	err = utils.AppendAssociations(database.GetInstance(), &item)
+	return item, err
+}
+func (service *CustomerService) GetAll() ([]*Customer, error) {
+	var customers []*Customer
+	customers, err := dal.Customer.Preload(field.Associations).Find()
+	return customers, err
+}
+func (service *CustomerService) GetById(id uint) (*Customer, error) {
+	item, err := dal.Customer.Preload(field.Associations).Where(dal.Customer.Id.Eq(id)).First()
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		} else {
+			return nil, err
+		}
+	}
+	return item, nil
+}
+func (service *CustomerService) Update(item Customer) (Customer, error) {
+	utils.ReplaceEmptySlicesWithNil(&item)
+	_, err := dal.Customer.Updates(&item)
+	if err != nil {
+		return item, err
+	}
+	err = utils.UpdateAssociations(database.GetInstance(), &item)
+
+	if err != nil {
+		return item, err
+	}
+
+	return item, err
+}
+func (service *CustomerService) Delete(id uint) error {
+	_, err := dal.Customer.Unscoped().Where(dal.Customer.Id.Eq(id)).Delete()
+	return err
+}
+func (service *CustomerService) Count() (int64, error) {
+	amount, err := dal.Customer.Count()
+	return amount, err
+}
+func (service *CustomerService) SortedByOrder(fieldsSortingOrder []utils.SortField) ([]*Customer, error) {
+	return utils.SortByOrder(fieldsSortingOrder, Customer{})
+}
+func (service *CustomerService) SearchByAllTextFields(phrase string) ([]*Customer, error) {
+	return utils.FindPhraseByStringFields[Customer](phrase, Customer{})
+}