我无法使用以下代码在Salesforce销售组织中插入记录，原因是另一个Apex类（触发器处理程序类）：

public class Demo {

    // try to insert only one record and fetch Id of the record using system.debug

    public static void InsertDemo() {

        Account acc= new account();
        acc.name = 'Skanda145';
        acc.Active__c= 'Yes';
        insert acc ; 

        System.debug('Account Id = ' +acc.Id);
    }
}

我收到这个错误：

第10行，第1列
System.DmlException: Insert failed. First exception on row 0; first error: CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY, AccountTrigger1: execution of BeforeInsert caused by: line 5, column 36: Method does not exist or incorrect signature: void PopulateRating(List, NULL) from the type AccountTriggerhandler1: []

问题在于已经存在的触发器处理程序类不允许插入（触发器处理程序类的名称是 --> AccountTriggerhandler1，代码在此显示）。

请问有人能告诉我应该怎么做来克服这个问题吗？我无法修复。

public class AccountTriggerhandler1 {

    public static void updateAccountRecursion(List<account> accList, map<Id,Account> accoldmap) {

       List<Account> actToBeUpdated = new List<Account>();

        for (Account acc :accList) {

            Account a = new Account();
            a.id = acc.id;
            a.description = 'Test Recursion';

            actToBeUpdated.add(a);            
        }

        if (!actToBeUpdated.isEmpty()) {

            update actToBeUpdated;
        }
    }


    public static void preventDeletion(List<Account> accList) {

        profile p = [Select Id FROM Profile Where name = 'System Administrator'];

        for (account acc:accList) {
            // if(acc.Active__c == 'Yes') {
            if (userInfo.getprofileId()!= p.Id || acc.Active__c == 'Yes') {  // only system admin can delete record in this case
               //acc.addError('We cant delete active account records');   

              // acc.addError(Label.Prevent_duplicate_Account);    // name of custom label api is wrong here
            }
        }
    }


    public static void updateRelatedcontact(List<Account> accList , Map<id,Account> accoldmap) {

        List<Contact> conList = new List<Contact>();
        //Map<id,Account> accmap = new map<Id,Account> ();
        set<Id> accIds = new set<Id>();

        for (Account acc:accList) {
            //map will store only thoes accounts whose phone is updated.
            if (acc.phone !=accoldMap.get(acc.id).phone) {
                //  accMap.put(acc.Id,acc);
                accIds.add(acc.id);
            }
        }
        /*  for (contact con: [Select Id, Homephone, AccountId from contact
                           where AccountId IN : accMap.keyset()]){
            if(accMap.containskey(con.accountid)){
                con.Homephone = accMap.get(con.accountid).phone;
                conList.add(con);
            }
         } */

           for(Account acc: [SELECT ID,Phone,(Select Homephone From contacts) 
                             FROM ACCOUNT Where Id IN : Accids]) {
                                 if(acc.Contacts!=null){

                                     for(contact con:acc.contacts){
                                         con.HomePhone = acc.phone;
                                         conList.add(con);

                                     }
                                 }     

                             }


        if(!conList.isempty()){
            update conList;
        }   

    }

     Public static void PopulateRating(List<Account> accList , Map<id,Account> accoldmap){

        for (Account acc:acCList){
            if((accoldmap == null && acc.industry !=null && acc.Industry == 'Media')   // --> if new rcord insert happen
            || (acc.industry != accoldmap.get(acc.Id).Industry && acc.Industry == 'Media')) // --> if   rcord existed it will update 

            {
                acc.Rating='Hot';

            }

        }
    }


    public static void updatePhone(List<Account> acclist, map<id,account> accoldmap){

        for(Account acc:acclist) {


            if(acc.phone != accoldmap.get(acc.Id).phone){
                acc.description = ' phone is updated | old value = ' + accoldmap.get(acc.Id).phone +
                    ' New value = ' + acc.phone;

                    }
        }
    }


    public static void createOpp(List<Account> accList){
        List<Opportunity> OppList = new List<Opportunity>();

        for (account acc:accList){
            opportunity opp = new opportunity();
            Opp.Name = acc.name;
            Opp.StageName = 'prospecting';
            Opp.Amount = 0005;
            Opp.CloseDate = system.today();
            opp.AccountId=acc.Id;
            OppList.add(opp);

        } 

        if(!OppList.isEmpty()){
            insert OppList;
        }

    }

    public static void updatedesc(List<Account> accList){

        for(Account acc : accList){
            acc.Description = 'Account created in march';

        }
    }

    Public static void PopulateRating(List<Account> accList){

        for (Account acc:acCList){
            if(acc.industry !=null && acc.Industry == 'Media'){
                acc.Rating='Hot';

            }

        }
    }

}

解决方案

我觉得插入语句并不是这里真正的问题。插入操作只是让账户触发器被执行，而触发器在处理程序内部就失败了。

错误的关键部分是：

方法不存在或签名不正确。
PopulateRating(List, NULL)

所以我会检查触发器是如何调用PopulateRating的。如果是在插入之前运行，Trigger.oldMap将为null，因此你可能需要改用只有一个参数的版本：

AccountTriggerhandler1.PopulateRating(Trigger.new);

并且只在更新逻辑中使用两个参数的版本，当Trigger.oldMap存在时：

AccountTriggerhandler1.PopulateRating(Trigger.new, Trigger.oldMap);

另外，确保处理程序类是一个独立的Apex类，而不是放在Demo类里面。