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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package id
import (
"code.superseriousbusiness.org/gotosocial/internal/paging"
)
// ValidatePage ensures that passed page has valid paging
// values for the current defined ordering. That is, it
// ensures a valid page *cursor* value, using id.Highest
// or id.Lowest where appropriate when none given.
func ValidatePage(page *paging.Page) {
if page == nil {
// unpaged
return
}
switch page.Order() {
// If the page order is ascending,
// ensure that a minimum value is set.
// This will be used as the cursor.
case paging.OrderAscending:
if page.Min.Value == "" {
page.Min.Value = Lowest
}
// If the page order is descending,
// ensure that a maximum value is set.
// This will be used as the cursor.
case paging.OrderDescending:
if page.Max.Value == "" {
page.Max.Value = Highest
}
}
}
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