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Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172)

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* Add SQLite support, fix un-thread-safe DB caches, small performance fixes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add SQLite licenses to README

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* appease the linter, and fix my dumbass-ery

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* make requested changes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add back comment

Signed-off-by: kim (grufwub) <grufwub@gmail.com>
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kim 2021-08-29 15:41:41 +01:00 • committed by GitHub
commit ed46224573
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730 changed files with 2239881 additions and 3669 deletions
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55
internal/db/bundb/util.go
View file

@ -19,64 +19,9 @@
package bundb
import (
"context"
"strings"
"database/sql"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/uptrace/bun"
)
// processErrorResponse parses the given error and returns an appropriate DBError.
func processErrorResponse(err error) db.Error {
switch err {
case nil:
return nil
case sql.ErrNoRows:
return db.ErrNoEntries
default:
if strings.Contains(err.Error(), "duplicate key value violates unique constraint") {
return db.ErrAlreadyExists
}
return err
}
}
func exists(ctx context.Context, q *bun.SelectQuery) (bool, db.Error) {
count, err := q.Count(ctx)
exists := count != 0
err = processErrorResponse(err)
if err != nil {
if err == db.ErrNoEntries {
return false, nil
}
return false, err
}
return exists, nil
}
func notExists(ctx context.Context, q *bun.SelectQuery) (bool, db.Error) {
count, err := q.Count(ctx)
notExists := count == 0
err = processErrorResponse(err)
if err != nil {
if err == db.ErrNoEntries {
return true, nil
}
return false, err
}
return notExists, nil
}
// whereEmptyOrNull is a convenience function to return a bun WhereGroup that specifies
// that the given column should be EITHER an empty string OR null.
//