gosora/common/activity_stream.go

99 lines
3.2 KiB
Go

package common
import (
"database/sql"
qgen "github.com/Azareal/Gosora/query_gen"
)
var Activity ActivityStream
type ActivityStream interface {
Add(a Alert) (int, error)
Get(id int) (Alert, error)
Delete(id int) error
DeleteByParams(event string, targetID int, targetType string) error
DeleteByParamsExtra(event string, targetID int, targetType, extra string) error
AidsByParamsExtra(event string, elementID int, elementType, extra string) (aids []int, err error)
Count() (count int)
}
type DefaultActivityStream struct {
add *sql.Stmt
get *sql.Stmt
delete *sql.Stmt
deleteByParams *sql.Stmt
deleteByParamsExtra *sql.Stmt
aidsByParamsExtra *sql.Stmt
count *sql.Stmt
}
func NewDefaultActivityStream(acc *qgen.Accumulator) (*DefaultActivityStream, error) {
as := "activity_stream"
return &DefaultActivityStream{
add: acc.Insert(as).Columns("actor,targetUser,event,elementType,elementID,createdAt,extra").Fields("?,?,?,?,?,UTC_TIMESTAMP(),?").Prepare(),
get: acc.Select(as).Columns("actor,targetUser,event,elementType,elementID,createdAt,extra").Where("asid=?").Prepare(),
delete: acc.Delete(as).Where("asid=?").Prepare(),
deleteByParams: acc.Delete(as).Where("event=? AND elementID=? AND elementType=?").Prepare(),
deleteByParamsExtra: acc.Delete(as).Where("event=? AND elementID=? AND elementType=? AND extra=?").Prepare(),
aidsByParamsExtra: acc.Select(as).Columns("asid").Where("event=? AND elementID=? AND elementType=? AND extra=?").Prepare(),
count: acc.Count(as).Prepare(),
}, acc.FirstError()
}
func (s *DefaultActivityStream) Add(a Alert) (int, error) {
res, err := s.add.Exec(a.ActorID, a.TargetUserID, a.Event, a.ElementType, a.ElementID, a.Extra)
if err != nil {
return 0, err
}
lastID, err := res.LastInsertId()
return int(lastID), err
}
func (s *DefaultActivityStream) Get(id int) (Alert, error) {
a := Alert{ASID: id}
err := s.get.QueryRow(id).Scan(&a.ActorID, &a.TargetUserID, &a.Event, &a.ElementType, &a.ElementID, &a.CreatedAt, &a.Extra)
return a, err
}
func (s *DefaultActivityStream) Delete(id int) error {
_, err := s.delete.Exec(id)
return err
}
func (s *DefaultActivityStream) DeleteByParams(event string, elementID int, elementType string) error {
_, err := s.deleteByParams.Exec(event, elementID, elementType)
return err
}
func (s *DefaultActivityStream) DeleteByParamsExtra(event string, elementID int, elementType, extra string) error {
_, err := s.deleteByParamsExtra.Exec(event, elementID, elementType, extra)
return err
}
func (s *DefaultActivityStream) AidsByParamsExtra(event string, elementID int, elementType, extra string) (aids []int, err error) {
rows, err := s.aidsByParamsExtra.Query(event, elementID, elementType, extra)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var aid int
if err := rows.Scan(&aid); err != nil {
return nil, err
}
aids = append(aids, aid)
}
return aids, rows.Err()
}
// TODO: Write a test for this
// Count returns the total number of activity stream items
func (s *DefaultActivityStream) Count() (count int) {
err := s.count.QueryRow().Scan(&count)
if err != nil {
LogError(err)
}
return count
}