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package federatingdb
import (
"context"
"fmt"
"net/url"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/db"
)
// Following obtains the Following Collection for an actor with the
// given id.
//
// If modified, the library will then call Update.
//
// The library makes this call only after acquiring a lock first.
func (f *federatingDB) Following(ctx context.Context, actorIRI *url.URL) (following vocab.ActivityStreamsCollection, err error) {
l := logrus.WithFields(
logrus.Fields{
"func": "Following",
"id": actorIRI,
},
)
l.Debug("entering Following")
acct, err := f.getAccountForIRI(ctx, actorIRI)
if err != nil {
return nil, err
}
acctFollowing, err := f.db.GetAccountFollows(ctx, acct.ID)
if err != nil {
return nil, fmt.Errorf("Following: db error getting following for account id %s: %s", acct.ID, err)
}
iris := []*url.URL{}
for _, follow := range acctFollowing {
if follow.TargetAccount == nil {
a, err := f.db.GetAccountByID(ctx, follow.TargetAccountID)
if err != nil {
errWrapped := fmt.Errorf("Following: db error getting account id %s: %s", follow.TargetAccountID, err)
if err == db.ErrNoEntries {
// no entry for this account id so it's probably been deleted and we haven't caught up yet
l.Error(errWrapped)
continue
} else {
// proper error
return nil, errWrapped
}
}
follow.TargetAccount = a
}
u, err := url.Parse(follow.TargetAccount.URI)
if err != nil {
return nil, err
}
iris = append(iris, u)
}
return f.collectIRIs(ctx, iris)
}
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