Adding upstream version 0.28.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

core/log_query.go

@@ -0,0 +1,65 @@
+package core
+
+import (
+	"time"
+
+	"github.com/pocketbase/dbx"
+	"github.com/pocketbase/pocketbase/tools/types"
+)
+
+// LogQuery returns a new Log select query.
+func (app *BaseApp) LogQuery() *dbx.SelectQuery {
+	return app.AuxModelQuery(&Log{})
+}
+
+// FindLogById finds a single Log entry by its id.
+func (app *BaseApp) FindLogById(id string) (*Log, error) {
+	model := &Log{}
+
+	err := app.LogQuery().
+		AndWhere(dbx.HashExp{"id": id}).
+		Limit(1).
+		One(model)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return model, nil
+}
+
+// LogsStatsItem defines the total number of logs for a specific time period.
+type LogsStatsItem struct {
+	Date  types.DateTime `db:"date" json:"date"`
+	Total int            `db:"total" json:"total"`
+}
+
+// LogsStats returns hourly grouped logs statistics.
+func (app *BaseApp) LogsStats(expr dbx.Expression) ([]*LogsStatsItem, error) {
+	result := []*LogsStatsItem{}
+
+	query := app.LogQuery().
+		Select("count(id) as total", "strftime('%Y-%m-%d %H:00:00', created) as date").
+		GroupBy("date")
+
+	if expr != nil {
+		query.AndWhere(expr)
+	}
+
+	err := query.All(&result)
+
+	return result, err
+}
+
+// DeleteOldLogs delete all logs that are created before createdBefore.
+//
+// For better performance the logs delete is executed as plain SQL statement,
+// aka. no delete model hook events will be fired.
+func (app *BaseApp) DeleteOldLogs(createdBefore time.Time) error {
+	formattedDate := createdBefore.UTC().Format(types.DefaultDateLayout)
+	expr := dbx.NewExp("[[created]] <= {:date}", dbx.Params{"date": formattedDate})
+
+	_, err := app.auxNonconcurrentDB.Delete((&Log{}).TableName(), expr).Execute()
+
+	return err
+}