如何應用過濾器Couchbase Server中使用C＃

Question

這是我的JSON數據

{ 
"_id":"biking", 
"_rev":"AE19EBC7654", 
"type":"user", 
"body":"My biggest hobby is mountainbiking. The other day...", 
"date":"2009/01/30 18:04:11" 
} 
{ 
"_id":"biking", 
"_rev":"AE19EBC7654", 
"type":"testuser", 
"body":"My biggest hobby is mountainbiking. The other day...", 
"date":"2009/01/30 18:04:11" 
} 

這裏是什麼是迄今爲止

var pull = _db.CreatePullReplication(syncGatewayUri); 
var push = _db.CreatePushReplication(syncGatewayUri); 

_db.SetFilter("byUser", (revision, filterParams) => 
{ 
var typeParam = filterParams["type"].ToString(); 

return (typeParam != null) && typeParam.Equals("USer"); 
}); 

pull.Filter ="byUser"; 

我想只包含類型的用戶結果嘗試。但我無法應用過濾器。

Answer 1

因此，如果您只想爲用戶創建過濾器，則不需要參數。如果文檔的類型是「user」，你想要做的是返回true。

下面是一個例子：

var pull = _db.CreatePullReplication(syncGatewayUri); 
var push = _db.CreatePushReplication(syncGatewayUri); 

_db.SetFilter("byUser", (revision, filterParams) => 
{ 
    //We get the type property 
    var docType = (string)revision.GetProperty("type"); 
    //We make sure it's a user 
    return !String.IsNullOrEmpty(docType) && docType.toLowerCase() == "user"; 
}); 

pull.Filter ="byUser"; 

如果你想更有活力，你可以創建一個過濾器byType的，並指定了「用戶」類型參數。

實施例：

var pull = _db.CreatePullReplication(syncGatewayUri); 
var push = _db.CreatePushReplication(syncGatewayUri); 

_db.SetFilter("byType", (revision, filterParams) => 
{ 
var typeParam = filterParams["type"].ToString(); 
var docType = (string)revision.GetProperty("type"); 
return (typeParam != null) && !String.isNullOrEmpty(docType) && typeParam.toLowerCase() == docType.toLowerCase(); 
}) 

pull.Filter ="byType"; 
pull.FilterParams = new Dictionary<string, object> { {"type", "user"} }; 

有關更多細節，參見CouchBase文檔。