49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package common
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import (
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"database/sql"
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qgen "git.tuxpa.in/a/gosora/query_gen"
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)
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var Subscriptions SubscriptionStore
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// ? Should we have a subscription store for each zone? topic, forum, etc?
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type SubscriptionStore interface {
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Add(uid, elementID int, elementType string) error
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Delete(uid, targetID int, targetType string) error
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DeleteResource(targetID int, targetType string) error
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}
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type DefaultSubscriptionStore struct {
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add *sql.Stmt
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delete *sql.Stmt
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deleteResource *sql.Stmt
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}
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func NewDefaultSubscriptionStore() (*DefaultSubscriptionStore, error) {
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acc := qgen.NewAcc()
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ast := "activity_subscriptions"
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return &DefaultSubscriptionStore{
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add: acc.Insert(ast).Columns("user,targetID,targetType,level").Fields("?,?,?,2").Prepare(),
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delete: acc.Delete(ast).Where("user=? AND targetID=? AND targetType=?").Prepare(),
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deleteResource: acc.Delete(ast).Where("targetID=? AND targetType=?").Prepare(),
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}, acc.FirstError()
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}
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func (s *DefaultSubscriptionStore) Add(uid, elementID int, elementType string) error {
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_, err := s.add.Exec(uid, elementID, elementType)
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return err
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}
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// TODO: Add a primary key to the activity subscriptions table
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func (s *DefaultSubscriptionStore) Delete(uid, targetID int, targetType string) error {
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_, err := s.delete.Exec(uid, targetID, targetType)
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return err
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}
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func (s *DefaultSubscriptionStore) DeleteResource(targetID int, targetType string) error {
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_, err := s.deleteResource.Exec(targetID, targetType)
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return err
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}
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