Add support for archiving lists and namespaces (#152)

Add query param to get all lists including archived ones

Add query param to get all namespaces including archived ones

Fix getting lists by namespace only not archived lists

Fix misspell

Fix lint

Merge branch 'master' into feature/archive-lists-namespaces

Add docs for error codes

Fix archive error codes

Don't let archived lists show up in general lists

Fix updating description

Fix updating lists with link shares

More comments

Fix un-archiving lists

Move check for archiving a list to canWrite Check

Add more tests

Add more checks

Add checks for namespaces and lists

Add namespace edit

Add tests

Add migrations and filter

Add basic tests

Add is archived property to lists and namespaces

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/152

pkg/models/error.go

@@ -231,6 +231,29 @@ func (err ErrListIdentifierIsNotUnique) HTTPError() web.HTTPError {
 	}
 }
 
+// ErrListIsArchived represents an error, where a list is archived
+type ErrListIsArchived struct {
+	ListID int64
+}
+
+// IsErrListIsArchived checks if an error is a .
+func IsErrListIsArchived(err error) bool {
+	_, ok := err.(ErrListIsArchived)
+	return ok
+}
+
+func (err ErrListIsArchived) Error() string {
+	return fmt.Sprintf("List is archived [ListID: %d]", err.ListID)
+}
+
+// ErrCodeListIsArchived holds the unique world-error code of this error
+const ErrCodeListIsArchived = 3008
+
+// HTTPError holds the http error description
+func (err ErrListIsArchived) HTTPError() web.HTTPError {
+	return web.HTTPError{HTTPCode: http.StatusPreconditionFailed, Code: ErrCodeListIsArchived, Message: "This lists is archived. Editing or creating new tasks is not possible."}
+}
+
 // ================
 // List task errors
 // ================
@@ -777,6 +800,29 @@ func (err ErrUserAlreadyHasNamespaceAccess) HTTPError() web.HTTPError {
 	return web.HTTPError{HTTPCode: http.StatusConflict, Code: ErrCodeUserAlreadyHasNamespaceAccess, Message: "This user already has access to this namespace."}
 }
 
+// ErrNamespaceIsArchived represents an error where a namespace is archived
+type ErrNamespaceIsArchived struct {
+	NamespaceID int64
+}
+
+// IsErrNamespaceIsArchived checks if an error is a .
+func IsErrNamespaceIsArchived(err error) bool {
+	_, ok := err.(ErrNamespaceIsArchived)
+	return ok
+}
+
+func (err ErrNamespaceIsArchived) Error() string {
+	return fmt.Sprintf("Namespace is archived [NamespaceID: %d]", err.NamespaceID)
+}
+
+// ErrCodeNamespaceIsArchived holds the unique world-error code of this error
+const ErrCodeNamespaceIsArchived = 5012
+
+// HTTPError holds the http error description
+func (err ErrNamespaceIsArchived) HTTPError() web.HTTPError {
+	return web.HTTPError{HTTPCode: http.StatusPreconditionFailed, Code: ErrCodeNamespaceIsArchived, Message: "This namespaces is archived. Editing or creating new lists is not possible."}
+}
+
 // ============
 // Team errors
 // ============