Help for fixing "expecting a semi-colon, found ')'" Driving me bonkers!

Question

I'm getting the following error on the code below.

expecting a semi-colon, found ')'

I have placed comments around the offending block. I know it is the offending block because if I remove it, I have no more errors.

trigger HF_preventECInvoiceDelete on ECInvoice__c (before delete) {
    Set<Id> parentWithChildIds = new Set<Id>();
    Set<Id> parentIds = new Set<Id>();
    for(ECInvoice__c pa : Trigger.Old){
        parentIds.add(pa.Id);
    }

    // error is in this block
    for(Payment_received__c Ch = [select id, EC_Invoice_num__c, EC_Invoice_num__r.Id from Payment_received__c where ECInvoice__c =: parentIds]){
        parentWithChildIds.add(Ch.EC_Invoice_num__r.Id);
    }
    // end of block

    for(ECInvoice__c pa : Trigger.Old){
        if(parentWithChildIds.contains(pa.Id)){
            pa.adderror('This guy has Children, You cannot hurt him!');
        }
    }
}

Answer 1

Replace = with :.

for(Payment_received__c record : [SELECT ... FROM Payment_received__c]

See Loops.

Answer 2

Thanks for the replies. I ended up doing this instead:

trigger HF_DeleteECInvoice on ECInvoice__c (before delete) {
    List<Payment_received__c> lis = [select EC_Invoice_num__c from Payment_received__c
        where EC_Invoice_num__c in :Trigger.oldMap.keyset()];

    for (Payment_received__c li : lis)
    {
        trigger.oldmap.get(li.EC_Invoice_num__c).adderror('Invoice has payments applied! Cannot delete.');
    }        
}