88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package admin
|
|
|
|
import (
|
|
"context"
|
|
"server/internal/db"
|
|
"server/internal/db/sqlc"
|
|
"server/internal/model/common"
|
|
"server/internal/model/request"
|
|
"server/internal/pkg/dberr"
|
|
"server/internal/pkg/errs"
|
|
)
|
|
|
|
type CategoryService struct {
|
|
store *db.Store
|
|
}
|
|
|
|
func NewCategoryService(store *db.Store) *CategoryService {
|
|
return &CategoryService{
|
|
store: store,
|
|
}
|
|
}
|
|
|
|
func (s *CategoryService) List(ctx context.Context, p *common.Pagination) (*common.PageResult[sqlc.Category], error) {
|
|
params := sqlc.ListCategoriesParams{
|
|
Limit: p.PageSize,
|
|
Offset: (p.Page - 1) * p.PageSize,
|
|
}
|
|
|
|
total, err := s.store.CountCategories(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
list, err := s.store.ListCategories(ctx, params)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &common.PageResult[sqlc.Category]{
|
|
List: list,
|
|
Total: total,
|
|
}, nil
|
|
}
|
|
|
|
func (s *CategoryService) ListAll(ctx context.Context) ([]sqlc.Category, error) {
|
|
return s.store.ListAllCategories(ctx)
|
|
}
|
|
|
|
func (s *CategoryService) Create(ctx context.Context, req request.CreateCategoryRequest) error {
|
|
params := sqlc.CreateCategoryParams{
|
|
Name: req.Name,
|
|
Code: req.Code,
|
|
Sort: req.Sort,
|
|
}
|
|
|
|
err := s.store.CreateCategory(ctx, params)
|
|
return dberr.MapUniqueViolation(err, dberr.CategoryCodeKey, errs.ErrCategoryCodeAlreadyExists)
|
|
}
|
|
|
|
func (s *CategoryService) Update(ctx context.Context, id int32, req request.UpdateCategoryRequest) error {
|
|
params := sqlc.UpdateCategoryParams{
|
|
ID: id,
|
|
Name: req.Name,
|
|
Code: req.Code,
|
|
Sort: req.Sort,
|
|
}
|
|
rows, err := s.store.UpdateCategory(ctx, params)
|
|
// 先判断数据条目是否存在
|
|
if err = dberr.MapRowsAffected(rows, err, errs.ErrCategoryNotFound); err != nil {
|
|
// 再判断code是否重复
|
|
return dberr.MapUniqueViolation(err, dberr.CategoryCodeKey, errs.ErrCategoryCodeAlreadyExists)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *CategoryService) Delete(ctx context.Context, id int32) error {
|
|
return s.store.WithTx(ctx, func(q *sqlc.Queries) error {
|
|
err := q.DeletePostCategoryByCategoryID(ctx, id)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
rows, err := q.DeleteCategory(ctx, id)
|
|
return dberr.MapRowsAffected(rows, err, errs.ErrCategoryNotFound)
|
|
})
|
|
}
|