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sridharbarla How to use apex trigger like validation rule (before inser or update)
Hi ,
i am new to apex programming.
my requirement is like below
opportunity can have Tradin plan
Each opportunity can have n number of trading plan but
all trading pan amount can not greater than the opportunity amount .
to check the sum of trading plan amount whether it is greater or less
in validation rules it is not possible so i thought i can write apex trigger
but i don't know how to stop data insertion if codition fails in apex trigger .
below i written apes trigger before insert
please help me on this
trigger TradingPlanInsert on Opportunity_Trading_Plan__c (before insert)
{
Id opptID;
double oppAmount = 0;
double oppTplanAmount= 0;
for(Opportunity_Trading_Plan__c newTradinPlanObj: Trigger.new)
{
opptID = newTradinPlanObj.Opportunity_trading__c;
oppTplanAmount = oppTplanAmount + newTradinPlanObj.Plan_Amount__c;
}
Opportunity_Trading_Plan__c[] oppTradingobj = [Select Id, Name, CurrencyIsoCode, Opportunity_trading__c,
Plan_Amount__c, Trading_Received_Date__c, Milestone__c, Description__c, GM__c
FROM Opportunity_Trading_Plan__c where Opportunity_trading__c = :opptID];
for(Opportunity_Trading_Plan__c oppTexistinObj : oppTradingobj )
{
oppTplanAmount = oppTplanAmount + oppTexistinObj.Plan_Amount__c;
}
Opportunity[] oppobj = [Select Id, StageName, Amount, CloseDate, Type, CurrencyIsoCode FROM Opportunity where ID =:opptID];
for(Opportunity oppdetailsObj : oppobj )
{
oppAmount = oppdetailsObj.Amount;
}
if (oppAmount < oppTplanAmount )
{
System.Debug('Trading plan amount more than opportunity amount ');
}
}
If you use the addError method on the sobject(s) that the trigger is working on, the insert will fail.
Check out the Triggers section of the Apex Developer's Guide.
i will create a new field in opportunity named like TotalTradinPlanAmount with type Roll-Up Summary .
it can keep all the tradin plan amount so far and then it would be easy to do just in validation rule on page side
when user create a new tradin plan record. you do not have to do this in trigger at all.
validation fired condition like : if opp.TotalTradinPlanAmount + opp.newtradinplan.amount >opp.amount .
i did not try just a idea here. please let me konw if it works. thanks
Hi , thanks for your suggession .
as per your suggession i try to created Roll-Up Summary filed in opportunity
but i am not able to create roll-up summary filed on currency data type (trading plan amount)
so what i did is i changed trading plan amount data type to number
then i am able to create roll up summary filed in opportunity
but my validation rule is not firing because
if (number data type > currency data type )
so it is failing
with addError i used but writing apex i am not interested is ther any other way please help me
Trigger.new[i].addError('Message:Trading plan amount more than opportunity amount:MessageEnd');
i used addError and it is working
but while running unit test code coverage time it is showing red colour
i am getting
public class AP04
2
{
3
7
public static void addNiceRef(Opportunity[] oppObj)
4
{
5
7
String OppDivisionCode;
6
7
Integer refCountValue = 1000 ;
7
7
for (Opportunity getoppObj1:oppObj)
8
{
9
1038
OppDivisionCode = getoppObj1.Division_Code__c ;
10
11
}
12
7
if(OppDivisionCode != null)
13
{
14
0
AggregateResult[] groupedResults = [select Max(RefNumCount__c) refnum from Opportunity where Division_Code__c = :OppDivisionCode group by Division_Code__c ];
15
0
for (AggregateResult ar : groupedResults)
16
{
17
0
if (String.valueOf(ar.get('refnum')) != null)
18
{
19
0
refCountValue = Integer.valueOf(String.valueOf(ar.get('refnum')));
20
}
21
}
22
0
for(Opportunity getoppObj2: oppObj)
23
{
24
0
getoppObj2.RefNumCount__c = refCountValue + 1;
25
0
getoppObj2.OLDNICENBR__C = OppDivisionCode + '' + getoppObj2.RefNumCount__c ;
26
}
27
}
28
29
30
}
31
15
public static void updateNiceRef(Opportunity[] oppObj)
32
{
33
15
String OpporunityID;
34
15
String OppDivisionCode;
35
15
Integer refCountValue = 1000 ;
36
15
Integer RecordCount = 0;
37
15
Integer tradingPlanCount = 0;
38
15
for (Opportunity getoppObj1:oppObj)
39
{
40
2336
OppDivisionCode = getoppObj1.Division_Code__c ;
41
2336
OpporunityID = getoppObj1.ID;
42
}
43
44
15
tradingPlanCount = [Select COUNT() from Opportunity_Trading_Plan__c where Opportunity_trading__c = :OpporunityID ];
45
46
15
RecordCount = [Select Count() from opportunity WHERE ID = :OpporunityID and Division_Code__c =:OppDivisionCode ];
47
15
if(RecordCount == 0)
48
{
49
0
AggregateResult[] groupedResults = [select Max(RefNumCount__c) refnum from Opportunity where Division_Code__c =:OppDivisionCode group by Division_Code__c];
50
0
for (AggregateResult ar : groupedResults)
51
{
52
0
if (String.valueOf(ar.get('refnum')) != null)
53
{
54
0
refCountValue = Integer.valueOf(String.valueOf(ar.get('refnum')));
55
}
56
}
57
}
58
59
15
for(Opportunity getoppObj2: oppObj)
60
{
61
4672
If(OppDivisionCode == null)
62
{
63
2336
getoppObj2.OLDNICENBR__C = null;
64
2336
getoppObj2.RefNumCount__c = 0;
65
}
66
else
67
{
68
0
getoppObj2.RefNumCount__c = refCountValue + 1;
69
0
getoppObj2.OLDNICENBR__C = OppDivisionCode + '' + getoppObj2.RefNumCount__c ;
70
}
71
72
2336
if ( (tradingPlanCount > 0) && getoppObj2.Trading_Plan__c == 'No')
73
{
74
0
getoppObj2.Trading_Plan__c.addError('Trading plan exist to this opportunity so you can not set to No');
75
76
}
77
}
78
79
80
81
}
82
}
while rumning unit test on above code why i am getting code coverage 62% and it is showing in 14 to 19 lines and
49 to 54 with red colour why it is showning
@istest
private class Test_AP04_AP05 {
private static testMethod void TestAP04(){
List<Opportunity> myOpportunityList1=new List<Opportunity>();
List<Opportunity> myOpportunityList2=new List<Opportunity>();
for(Integer i=0;i<100;i++){
myOpportunityList1.add(new Opportunity(name='_',StageName='_',CloseDate=date.today(),MarketSegment__c = 'Metals',Market_Community__c ='Latin_America',Division_Code__c = 'UKTY2',Amount=0,TotalGM__c=0));
myOpportunityList1.add(new Opportunity(name='_',StageName='_',CloseDate=date.today(),MarketSegment__c = 'Metals',Market_Community__c ='Latin_America',Division_Code__c = ''));
}
Database.Insert(myOpportunityList1);
for(Integer i=0;i<200;i++)myOpportunityList2.add(new Opportunity(name='_',StageName='_',CloseDate=date.today(),MarketSegment__c = 'Metals',Market_Community__c ='Latin_America',Division_Code__c = 'UKTY2',Amount=i,TotalGM__c=24,TPOpptyLink__c=myOpportunityList1[i].Id));
Test.startTest();
Database.insert(myOpportunityList2);
for(Opportunity o:myOpportunityList2)o.Amount+=1000.00;
Database.Update(myOpportunityList2);
Test.stopTest();
}
}
this my test call and this will satisfy the condition because i am insering with using division code
so condition will be success in update time
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