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flag.go
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flag.go
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package db
import (
"fmt"
"time"
"github.com/go-xorm/core"
"github.com/go-xorm/xorm"
)
type flaggedItem struct {
FeedItemId int64 `xorm:"pk"`
NewsItemId int64 `xorm:"pk"`
Date time.Time `xorm:"index"`
}
type FlagItemClient struct {
Engine *xorm.Engine
}
func (c *FlagItemClient) FlagItem(newsID int64, feedID int64) (bool, error) {
var x flaggedItem
// Note: Ordering depends on order of struct
ok, err := c.Engine.Id(core.NewPK(feedID, newsID)).Get(&x)
if err != nil {
return false, err
}
if ok {
return true, nil
}
if _, err := c.Engine.InsertOne(&flaggedItem{
NewsItemId: newsID,
FeedItemId: feedID,
Date: time.Now(),
}); err != nil {
return false, fmt.Errorf("db: failed to flag news: %v", err)
}
return true, nil
}
func (c *FlagItemClient) RemoveFlag(newsID int64, feedID int64) (bool, error) {
var x flaggedItem
ok, err := c.Engine.Id(core.NewPK(feedID, newsID)).Get(&x)
if err != nil {
return false, err
}
if !ok {
return false, fmt.Errorf("not found")
}
if _, err := c.Engine.Delete(&x); err != nil {
return false, fmt.Errorf("db: failed to delete flagged news: %v", err)
}
return true, nil
}
func (c *FlagItemClient) GetAllFlagged(feedID int64) ([]int64, error) {
var res []*flaggedItem
err := c.Engine.Where(fmt.Sprintf("feed_item_id = %d", feedID)).Find(&res)
if err != nil {
return nil, err
}
var ret []int64
for _, item := range res {
ret = append(ret, item.NewsItemId)
}
return ret, nil
}