/
stock.go
122 lines (97 loc) · 3.2 KB
/
stock.go
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// Copyright 2021 Wei (Sam) Wang <sam.wang.0723@gmail.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package dal
import (
"context"
"fmt"
"github.com/samwang0723/jarvis/internal/app/entity"
"github.com/samwang0723/jarvis/internal/database/dal/idal"
"gorm.io/gorm/clause"
)
func (i *dalImpl) BatchUpsertStocks(ctx context.Context, objs []*entity.Stock) error {
err := i.db.Clauses(clause.OnConflict{
UpdateAll: true,
}).CreateInBatches(&objs, idal.MaxRow).Error
return err
}
func (i *dalImpl) CreateStock(ctx context.Context, obj *entity.Stock) error {
err := i.db.Create(obj).Error
return err
}
func (i *dalImpl) UpdateStock(ctx context.Context, obj *entity.Stock) error {
err := i.db.Unscoped().Model(&entity.Stock{}).Save(obj).Error
return err
}
func (i *dalImpl) DeleteStockByID(ctx context.Context, id entity.ID) error {
err := i.db.Delete(&entity.Stock{}, id).Error
return err
}
func (i *dalImpl) GetStockByStockID(ctx context.Context, stockID string) (*entity.Stock, error) {
res := &entity.Stock{}
if err := i.db.First(res, "stock_id = ?", stockID).Error; err != nil {
return nil, err
}
return res, nil
}
func (i *dalImpl) ListStock(ctx context.Context, offset, limit int32,
searchParams *idal.ListStockSearchParams,
) (objs []*entity.Stock, totalCount int64, err error) {
sql := fmt.Sprintf("select count(*) from stocks where %s", buildQueryFromListStockSearchParams(searchParams))
err = i.db.Raw(sql).Scan(&totalCount).Error
if err != nil {
return nil, 0, err
}
sql = fmt.Sprintf(`select t.* from
(select id from stocks where %s order by stock_id limit %d, %d) q
join stocks t on t.id = q.id`, buildQueryFromListStockSearchParams(searchParams), offset, limit)
err = i.db.Raw(sql).Scan(&objs).Error
if err != nil {
return nil, 0, err
}
return objs, totalCount, nil
}
func (i *dalImpl) ListCategories(ctx context.Context) (objs []string, err error) {
err = i.db.Raw("SELECT category FROM stocks group by category").Scan(&objs).Error
if err != nil {
return []string{}, err
}
return objs, nil
}
func buildQueryFromListStockSearchParams(params *idal.ListStockSearchParams) string {
query := ""
if params == nil {
return query
}
if len(params.Country) > 0 {
query = fmt.Sprintf("country = '%s'", params.Country)
}
if params.StockIDs != nil {
idList := ""
stockIDs := *params.StockIDs
for i := 0; i < len(stockIDs); i++ {
if i > 0 {
idList += ","
}
idList += "'" + stockIDs[i] + "'"
}
query = fmt.Sprintf("%s and stock_id IN (%s)", query, idList)
}
if params.Name != nil {
query = query + " and name like '%" + *params.Name + "%'"
}
if params.Category != nil {
query = fmt.Sprintf("%s and category = '%s'", query, *params.Category)
}
return query
}