🎨 数据历史文档和资源文件支持分页和搜索 https://github.com/siyuan-note/siyuan/issues/4901

kernel/sql/database.go

@@ -173,10 +173,10 @@ func InitHistoryDatabase(forceRebuild bool) {
 	historyDB.SetMaxOpenConns(1)
 	historyDB.SetConnMaxLifetime(365 * 24 * time.Hour)
 
-	historyDB.Exec("DROP TABLE history_fts_case_insensitive")
-	_, err = db.Exec("CREATE VIRTUAL TABLE history_fts_case_insensitive USING fts5(type UNINDEXED, op UNINDEXED, title, content, created UNINDEXED, path UNINDEXED, tokenize=\"siyuan case_insensitive\")")
+	historyDB.Exec("DROP TABLE histories_fts_case_insensitive")
+	_, err = historyDB.Exec("CREATE VIRTUAL TABLE histories_fts_case_insensitive USING fts5(type UNINDEXED, op UNINDEXED, title, content, path UNINDEXED, created UNINDEXED, tokenize=\"siyuan case_insensitive\")")
 	if nil != err {
-		logging.LogFatalf("create table [history_fts_case_insensitive] failed: %s", err)
+		logging.LogFatalf("create table [histories_fts_case_insensitive] failed: %s", err)
 	}
 }
 
@@ -1066,6 +1066,9 @@ func CloseDatabase() {
 	if err := db.Close(); nil != err {
 		logging.LogErrorf("close database failed: %s", err)
 	}
+	if err := historyDB.Close(); nil != err {
+		logging.LogErrorf("close history database failed: %s", err)
+	}
 }
 
 func queryRow(query string, args ...interface{}) *sql.Row {
@@ -1095,6 +1098,16 @@ func BeginTx() (tx *sql.Tx, err error) {
 	return
 }
 
+func BeginHistoryTx() (tx *sql.Tx, err error) {
+	if tx, err = historyDB.Begin(); nil != err {
+		logging.LogErrorf("begin history tx failed: %s\n  %s", err, logging.ShortStack())
+		if strings.Contains(err.Error(), "database is locked") {
+			os.Exit(util.ExitCodeReadOnlyDatabase)
+		}
+	}
+	return
+}
+
 func CommitTx(tx *sql.Tx) (err error) {
 	if nil == tx {
 		logging.LogErrorf("tx is nil")

kernel/sql/history.go

@@ -0,0 +1,82 @@
+// SiYuan - Build Your Eternal Digital Garden
+// Copyright (c) 2020-present, b3log.org
+//
+// 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 <https://www.gnu.org/licenses/>.
+
+package sql
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+)
+
+type History struct {
+	Type    int
+	Op      string
+	Title   string
+	Content string
+	Created string
+	Path    string
+}
+
+const (
+	HistoriesFTSCaseInsensitiveInsert = "INSERT INTO histories_fts_case_insensitive (type, op, title, content, path, created) VALUES %s"
+	HistoriesPlaceholder              = "(?, ?, ?, ?, ?, ?)"
+)
+
+func InsertHistories(tx *sql.Tx, histories []*History) (err error) {
+	if 1 > len(histories) {
+		return
+	}
+
+	var bulk []*History
+	for _, history := range histories {
+		bulk = append(bulk, history)
+		if 512 > len(bulk) {
+			continue
+		}
+
+		if err = insertHistories0(tx, bulk); nil != err {
+			return
+		}
+		bulk = []*History{}
+	}
+	if 0 < len(bulk) {
+		if err = insertHistories0(tx, bulk); nil != err {
+			return
+		}
+	}
+	return
+}
+
+func insertHistories0(tx *sql.Tx, bulk []*History) (err error) {
+	valueStrings := make([]string, 0, len(bulk))
+	valueArgs := make([]interface{}, 0, len(bulk)*strings.Count(HistoriesPlaceholder, "?"))
+	for _, b := range bulk {
+		valueStrings = append(valueStrings, HistoriesPlaceholder)
+		valueArgs = append(valueArgs, b.Type)
+		valueArgs = append(valueArgs, b.Op)
+		valueArgs = append(valueArgs, b.Title)
+		valueArgs = append(valueArgs, b.Content)
+		valueArgs = append(valueArgs, b.Path)
+		valueArgs = append(valueArgs, b.Created)
+	}
+
+	stmt := fmt.Sprintf(HistoriesFTSCaseInsensitiveInsert, strings.Join(valueStrings, ","))
+	if err = prepareExecInsertTx(tx, stmt, valueArgs); nil != err {
+		return
+	}
+	return
+}