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值为null时Swift查询请求崩溃

swift ios

husharoonie · 技术社区 · 8 年前

检索到的查询结果

 "Adjusted_Lease_Value__c" = "0.0";
    "Amount_Financed__c" = "23520.64";
    "Assignment_Amount__c" = "19220.21";
    "Category__c" = 4;
    "Charge_Off_Amount__c" = "0.0";
    "Committed_Funds__c" = "19220.21";
    "Date_Assigned_Back_to_ACG__c" = "<null>"

如何检索它们:

// Initial Access to Salesforce in order to query data
client.performLogin(accessUsername, password: accessPassword, fail:{ (fail) in

}) { (success) in

self.queryResult = self.client.query(getCasesSQL2)

for o: Any in self.queryResult.records() {

// This line fails
let test = (o as AnyObject).fieldValue("Date_Assigned_Back_to_ACG__c") as! String

// This works no problem
let AmountFinanced = ((o as AnyObject).fieldValue("Amount_Financed__c") as! String

}

当查询结果为 “空” 它使应用程序崩溃。我该怎么办?

1 回复 | 直到 8 年前

Pooja Gupta 8 年前

如果可能为零,则不要使用强制转换。

self.queryResult = self.client.query(getCasesSQL2)

for o: Any in self.queryResult.records() {

   let test = (o as AnyObject).fieldValue("Date_Assigned_Back_to_ACG__c") as? String

   let amountFinanced = ((o as AnyObject).fieldValue("Amount_Financed__c") as? String

}

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