118 lines
3 KiB
Go
118 lines
3 KiB
Go
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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package sqlstore
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import (
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"database/sql"
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"errors"
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"strconv"
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sq "github.com/Masterminds/squirrel"
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"github.com/mattermost/focalboard/server/model"
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"github.com/mattermost/focalboard/server/services/store"
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)
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var ErrInvalidCardLimitValue = errors.New("card limit value is invalid")
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// activeCardsQuery applies the necessary filters to the query for it
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// to fetch an active cards window if the cardLimit is set, or all the
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// active cards if it's 0.
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func (s *SQLStore) activeCardsQuery(builder sq.StatementBuilderType, selectStr string, cardLimit int) sq.SelectBuilder {
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query := builder.
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Select(selectStr).
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From(s.tablePrefix + "blocks b").
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Join(s.tablePrefix + "boards bd on b.board_id=bd.id").
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Where(sq.Eq{
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"b.delete_at": 0,
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"b.type": model.TypeCard,
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"bd.is_template": false,
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})
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if cardLimit != 0 {
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query = query.
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Limit(1).
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Offset(uint64(cardLimit - 1))
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}
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return query
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}
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// getUsedCardsCount returns the amount of active cards in the server.
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func (s *SQLStore) getUsedCardsCount(db sq.BaseRunner) (int, error) {
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row := s.activeCardsQuery(s.getQueryBuilder(db), "count(b.id)", 0).
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QueryRow()
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var usedCards int
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err := row.Scan(&usedCards)
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if err != nil {
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return 0, err
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}
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return usedCards, nil
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}
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// getCardLimitTimestamp returns the timestamp value from the
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// system_settings table or zero if it doesn't exist.
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func (s *SQLStore) getCardLimitTimestamp(db sq.BaseRunner) (int64, error) {
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scanner := s.getQueryBuilder(db).
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Select("value").
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From(s.tablePrefix + "system_settings").
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Where(sq.Eq{"id": store.CardLimitTimestampSystemKey}).
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QueryRow()
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var result string
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err := scanner.Scan(&result)
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if errors.Is(sql.ErrNoRows, err) {
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return 0, nil
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}
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if err != nil {
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return 0, err
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}
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cardLimitTimestamp, err := strconv.Atoi(result)
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if err != nil {
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return 0, ErrInvalidCardLimitValue
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}
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return int64(cardLimitTimestamp), nil
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}
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// updateCardLimitTimestamp updates the card limit value in the
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// system_settings table with the timestamp of the nth last updated
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// card, being nth the value of the cardLimit parameter. If cardLimit
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// is zero, the timestamp will be set to zero.
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func (s *SQLStore) updateCardLimitTimestamp(db sq.BaseRunner, cardLimit int) (int64, error) {
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query := s.getQueryBuilder(db).
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Insert(s.tablePrefix+"system_settings").
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Columns("id", "value")
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var value interface{} = 0
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if cardLimit != 0 {
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value = s.activeCardsQuery(sq.StatementBuilder, "b.update_at", cardLimit).
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OrderBy("b.update_at DESC").
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Prefix("COALESCE((").Suffix("), 0)")
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}
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query = query.Values(store.CardLimitTimestampSystemKey, value)
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if s.dbType == model.MysqlDBType {
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query = query.Suffix("ON DUPLICATE KEY UPDATE value = ?", value)
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} else {
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query = query.Suffix(
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`ON CONFLICT (id)
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DO UPDATE SET value = EXCLUDED.value`,
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)
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}
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result, err := query.Exec()
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if err != nil {
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return 0, err
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}
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if _, err := result.RowsAffected(); err != nil {
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return 0, err
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}
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return s.getCardLimitTimestamp(db)
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}
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