我是Rethinkdb和ReQL api的新手。我想知道在insert（）之后获取表的count（）的最佳方法是什么？
这是我实际的javascript实现，但我认为可以改进
Private Function GetAllSyncedContactIdsInExchange(pService As ExchangeService) As List(Of Integer)
Dim oInternalContactIdDefinition As New ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, conContactIdPropertyName, MapiPropertyType.Integer)
Dim oInternalContactIdFilter As New SearchFilter.Exists(oInternalContactIdDefinition)
Dim oResults As FindItemsResults(Of Item) = Nothing
Dim oPropertySet As New PropertySet(oInternalContactIdDefinition)
Dim lstSyncedContactIds As New List(Of Integer)
Dim intDBId As Integer
Dim lstEESContactFolders As List(Of FolderId) = GetAllCustomEESFolderIds(pService)
For Each oFolderId As FolderId In lstEESContactFolders
Dim blnMoreAvailable As Boolean = True
Dim intSearchOffset As Integer = 0
Dim oView As New ItemView(conMaxChangesReturned, intSearchOffset, OffsetBasePoint.Beginning)
oView.PropertySet = BasePropertySet.IdOnly
Do While blnMoreAvailable
oResults = pService.FindItems(oFolderId, oInternalContactIdFilter, oView)
blnMoreAvailable = oResults.MoreAvailable
If Not IsNothing(oResults) AndAlso oResults.Items.Count > 0 Then
pService.LoadPropertiesForItems(oResults, oPropertySet)
For Each oExchangeItem As Item In oResults.Items
If oExchangeItem.TryGetProperty(oInternalContactIdDefinition, intDB2Id) Then
lstSyncedContactIds.Add(intDBId)
End If
Next
If blnMoreAvailable Then oView.Offset = oView.Offset + conMaxChangesReturned
End If
Loop
Next
Return lstSyncedContactIds
End Function
然后我添加新行
r.table('likes')
.changes()
.run(conn)
.then(cursor =>
cursor.each(() => {
r.table('likes')
.count()
.run(conn, (err, result) => console.log(result))
})
})
感谢您的帮助！