init

app/services/article_service.go

@@ -0,0 +1,111 @@
+package services
+
+import (
+	"github.com/goravel/framework/contracts/database/orm"
+	"github.com/goravel/framework/facades"
+
+	apperrors "goravel/app/errors"
+	"goravel/app/http/requests/admin"
+	"goravel/app/models"
+)
+
+type ArticleService interface {
+	GetByID(id uint) (*models.Article, error)
+	GetList(filters ArticleFilters, page, pageSize int) ([]models.Article, int64, error)
+
+	Create(req *admin.ArticleCreate) (*models.Article, error)
+
+	Update(id uint, req *admin.ArticleUpdate) (*models.Article, error)
+
+	Delete(id uint) error
+}
+
+type ArticleFilters struct {
+	Name   string
+	Status string
+}
+
+type ArticleServiceImpl struct{}
+
+func NewArticleService() ArticleService {
+	return &ArticleServiceImpl{}
+}
+
+func BuildArticleQuery(filters ArticleFilters) orm.Query {
+	query := facades.Orm().Query().Model(&models.Article{})
+
+	if filters.Name != "" {
+
+		query = query.Where("name LIKE ?", "%"+filters.Name+"%")
+
+	}
+	if filters.Status != "" {
+
+		query = query.Where("status = ?", filters.Status)
+
+	}
+
+	return query
+}
+
+func (s *ArticleServiceImpl) GetByID(id uint) (*models.Article, error) {
+	var item models.Article
+	if err := facades.Orm().Query().Where("id", id).FirstOrFail(&item); err != nil {
+		return nil, apperrors.NewBusinessError("article_not_found", "Article not found").WithError(err)
+	}
+	return &item, nil
+}
+
+func (s *ArticleServiceImpl) GetList(filters ArticleFilters, page, pageSize int) ([]models.Article, int64, error) {
+	query := BuildArticleQuery(filters)
+
+	var list []models.Article
+	var total int64
+	if err := query.Order("id desc").Paginate(page, pageSize, &list, &total); err != nil {
+		return nil, 0, err
+	}
+
+	return list, total, nil
+}
+
+func (s *ArticleServiceImpl) Create(req *admin.ArticleCreate) (*models.Article, error) {
+	item := &models.Article{
+
+		Name:   req.Name,
+		Status: req.Status,
+	}
+
+	if err := facades.Orm().Query().Create(item); err != nil {
+		return nil, apperrors.ErrCreateFailed.WithError(err)
+	}
+
+	return item, nil
+}
+
+func (s *ArticleServiceImpl) Update(id uint, req *admin.ArticleUpdate) (*models.Article, error) {
+	item, err := s.GetByID(id)
+	if err != nil {
+		return nil, err
+	}
+
+	if req.Name != nil {
+		item.Name = *req.Name
+	}
+	if req.Status != nil {
+		item.Status = *req.Status
+	}
+
+	if err := facades.Orm().Query().Save(item); err != nil {
+		return nil, apperrors.ErrUpdateFailed.WithError(err)
+	}
+
+	return item, nil
+}
+
+func (s *ArticleServiceImpl) Delete(id uint) error {
+	// 使用 Soft Delete
+	if _, err := facades.Orm().Query().Where("id", id).Delete(&models.Article{}); err != nil {
+		return err
+	}
+	return nil
+}