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beenerbeener 

Count() SOQL exception when no results

Hi,

 

I am attempting to query the number of rows I have for a particular object, so that if there are 0 objects, I don't operate.

 

I have tried the following line (this is the first line of code, which is called from an VisualForce ActionButton):

 

Integer Total_size = [select COUNT() from invoice__c where Week__c = :Current_Week_Ending.id]; 
I get the following error:
System.NullPointerException: Attempt to de-reference a null object
 
Any ideas why this happens? how can I verify that there are no objects before I work on it? for now, I will get the list and check it's size, but I think it's less efficient.
 
Thanks,
 
Ben 
 


Best Answer chosen by Admin (Salesforce Developers) 
uptime_andrewuptime_andrew
Is the Current_Week_Ending record defined?  Have you tried adding in some debugging to ensure that you aren't trying to reference the ID value of a null object?


All Answers
uptime_andrewuptime_andrew
Is the Current_Week_Ending record defined?  Have you tried adding in some debugging to ensure that you aren't trying to reference the ID value of a null object?
This was selected as the best answer
beenerbeener
Silly me.
 
Thaks.