Kanban board (#8346)

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: jaqra <48099350+jaqra@users.noreply.github.com>
Co-authored-by: Kerry <flatline-studios@users.noreply.github.com>
Co-authored-by: Jaqra <jaqra@hotmail.com>
Co-authored-by: Kyle Evans <kevans91@users.noreply.github.com>
Co-authored-by: Tsakiridis Ilias <TsakiDev@users.noreply.github.com>
Co-authored-by: Ilias Tsakiridis <ilias.tsakiridis@outlook.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

1 files changed, 38 insertions, 0 deletions

diff --git a/models/error.go b/models/error.go
index e9343cbe7c..13391e5d87 100644
--- a/models/error.go
+++ b/models/error.go
@@ -1586,6 +1586,44 @@ func (err ErrLabelNotExist) Error() string {
 	return fmt.Sprintf("label does not exist [label_id: %d]", err.LabelID)
 }
 
+// __________                   __               __
+// \______   \_______  ____    |__| ____   _____/  |_  ______
+//  |     ___/\_  __ \/  _ \   |  |/ __ \_/ ___\   __\/  ___/
+//  |    |     |  | \(  <_> )  |  \  ___/\  \___|  |  \___ \
+//  |____|     |__|   \____/\__|  |\___  >\___  >__| /____  >
+//                         \______|    \/     \/          \/
+
+// ErrProjectNotExist represents a "ProjectNotExist" kind of error.
+type ErrProjectNotExist struct {
+	ID     int64
+	RepoID int64
+}
+
+// IsErrProjectNotExist checks if an error is a ErrProjectNotExist
+func IsErrProjectNotExist(err error) bool {
+	_, ok := err.(ErrProjectNotExist)
+	return ok
+}
+
+func (err ErrProjectNotExist) Error() string {
+	return fmt.Sprintf("projects does not exist [id: %d]", err.ID)
+}
+
+// ErrProjectBoardNotExist represents a "ProjectBoardNotExist" kind of error.
+type ErrProjectBoardNotExist struct {
+	BoardID int64
+}
+
+// IsErrProjectBoardNotExist checks if an error is a ErrProjectBoardNotExist
+func IsErrProjectBoardNotExist(err error) bool {
+	_, ok := err.(ErrProjectBoardNotExist)
+	return ok
+}
+
+func (err ErrProjectBoardNotExist) Error() string {
+	return fmt.Sprintf("project board does not exist [id: %d]", err.BoardID)
+}
+
 //    _____  .__.__                   __
 //   /     \ |__|  |   ____   _______/  |_  ____   ____   ____
 //  /  \ /  \|  |  | _/ __ \ /  ___/\   __\/  _ \ /    \_/ __ \