system.QueryException

Question

Here I am trying to get value dynamically from few different fields include, Account, Status, Tracker, Priority, ContactEmail and list down the list of case that matchs the criteria.

When I execute the below code I am getting system.QueryException: invalid ID field: null

@RestResource(urlMapping='/QueryFilterStatus/*')

global with sharing class QueryFilterStatus{

@HttpPost

global static List<Case> dopostCase(String accountid,String tracker,String priority,String contactEmail,String status,String CStatus,String subject, String Keyword, String accid) {

List<Case> caseList = new List<Case>();

String str='Select id, Case_Owner_Name__c, OwneEmail__c, Description, Subject, Case_Type__c, Code__c, Tracker__c, status, Version__c, type, priority, ContactEmail, ContactId, OwnerId, CaseNumber, CSM_ID__c, CUP_Phone__c, Call_Type__c, IsClosed from Case where accountid =\''+ null +'\'';

if(String.isBlank(accid))

{

str+=' AND AccountId=\''+ accid+'\'';

}

if(String.isNotBlank(tracker))

{

str+=' AND Tracker__c =\''+ tracker+'\'';

}

if(String.isNotBlank(priority))

{

str+=' AND Priority=\''+ priority+'\'';

}

if(String.isNotBlank(contactEmail))

{

str+=' AND ContactEmail=\''+ contactEmail+'\'';

}

if(String.isNotBlank(status))

{

str+=' AND Status =\''+ status+'\'';

}

if(String.isNotBlank(CStatus))

{

str+=' AND CStatus__c=\''+ CStatus+'\'';

}

if(String.isNotBlank(Keyword))

{

str+=' AND (Subject Like\''+ Keyword+'\'';

str+=' OR CaseNumber Like \'%'+ Keyword+'%\')';

}

System.debug(str);

caseList=Database.query(str);

return caseList;

}

Edanna K · Answer

Dear ManojKumar Muthu,

Please change method from String.isBlank(accid) to String.isNotBlank

(accid)

if(String.isNotBlank(accid))
    {
       str+=' AND AccountId=\''+ accid+'\'';
    }

Please let me know if it helps!

system.QueryException

Apex

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