During Lead Conversion Mapping, we need to map different data type fields with the same data type fields. Using some apex code customization, we can achieve this easily.

Here I am going to explain how we can dynamically populate fields of sObject can.

syntax-                    SobjectVariable.put(fieldApi,value);

                                      Account acnt = new Account();

                                     acnt.put(‘Name’, New Account);

                                     Insert acnt;

This helps to all requirements in which we have to dynamically assign a value to object’s fields, Fields

API

is stored as a string type variable.

Example 1-

 In this example, I am trying to explain how can we get all Fields API name, their field type and Dynamically assign value based on their field type.

Account acc = new Account();                                 

//Instance of Account

//Get All fields API of Account Object

String Sobjectname = ‘Account’;

Map<String, Schema.SObjectField> fields = Schema.getGlobalDescribe().get(sobjectname).getDescribe().SObjectType.getDescribe().fields.getMap();

for(Schema.SObjectField field : fields.values())

{

Schema.DescribeFieldResult fieldResult = field.getDescribe();

// check whether field is isUpdateable

if(fieldResult.isUpdateable())

{

string fieldName= field.getDescribe().getName();

Schema.DisplayType fielddataType = fields.get(fieldName).getDescribe().getType();

string FieldType = string.valueOf(fielddataType);

if(fieldName ==’Name’)                                                     

//if field API is Name

{

acc.put(fieldName,’Test Account’);

}

if(FieldType ==’INTEGER’)

acc.put(fieldName,1000);                        

//It puts 1000 in all Fields which of INTEGER types

if(FieldType ==’CURRENCY’)

acc.put(fieldName,5000);                           

//It puts 1000 in all Fields which of Currency types

if(FieldType ==’TEXTAREA’)

acc.put(fieldName,’This is text Area field’);

//It Populates all fields of TEXTAREA type

}

}

insert acc;

Created record of Account-

  Example 2-

In this example, I am trying to create a record of Account object from an already created record of Contact. I have a field to field Mapping stored in a custom Label(or can use custom setting or

Custom Metadata Types

).

   

Now I have to assign values to Account field from contact field as stored in custom label.

public class DynamicPopulate {

public void method(){

Account acnt = new Account();                                    

//Instance of Account

String someLabel = System.Label.Mapping;              

 //Label in which Mapping is stored

// map to store Account field as key and contact fields as values

Map<string,string>MapAcountToContact = new  Map<string,string>();

//Call function which return a Map

MapAcountToContact = splitString(someLabel);

//Id of Contact record

ID recordId = ‘

XXXXXXXX

‘;

DescribeSObjectResult describeResult = recordId .getSObjectType().getDescribe();

Map<String, Schema.SObjectField> Contactfeilds=describeResult.fields.getMap();

List<String> ContactfieldNames = new List<String>( Contactfeilds.keySet());

//Dynamic Query which On Contact which fetch all columns at a time

String query = ‘ SELECT ‘ + String.join( ContactfieldNames , ‘,’ ) + ‘ FROM ‘ + describeResult.getName() + ‘ WHERE ‘                       + ‘ id = :recordId ‘ + ‘ LIMIT 1 ‘;

SObject records = Database.query( query );

Contact objOfCon = (Contact) records;

String Sobjectname = ‘Account’;

//Map to store All Fields of Account

Map<String, Schema.SObjectField> fields = Schema.getGlobalDescribe().get(sobjectname).getDescribe().SObjectType.getDescribe().fields.getMap();

for(Schema.SObjectField field : fields.values())

{

Schema.DescribeFieldResult fieldResult = field.getDescribe();

// check whether field is isUpdateable

if(fieldResult.isUpdateable())

{

string NameOfField = field.getDescribe().getName();

//Get field type of Account’s fields

Schema.DisplayType fielddataType = fields.get(NameOfField).getDescribe().getType();

string AccountfieldType = string.valueOf(fielddataType);

//Check if Account field is in custom label

if(MapAcountToContact.containsKey(NameOfField))

{

String s2 =MapAcountToContact.get(NameOfField);

//Get field type of Contact’s fields

Schema.DisplayType fielddataType2 = Contactfeilds.get(s2).getDescribe().getType();

string ContactfieldType = string.valueOf(fielddataType);

if(AccountfieldType ==ContactfieldType )

{

acnt.put(NameOfField,objOfCon.get(s2));

}

}

}

}

insert acnt;

}

//Method which split mapping stored in custom label in string format and stores in a Map, //Account’s fields are stored as key and Contact’s fields are stored as value

public map<string,string> splitString(string str)

{

Map<String,string> MapAfterSplit = new   Map<String,string>();

if(str != null && str != ”)

{

str=str.trim();

List<String> lst = str.split(‘;’);

for(string s : lst)

{

s= s.trim();

List<String> lst2 = s.split(‘-‘);

MapAfterSplit.put(lst2[0],lst2[1]);

}

}

return MapAfterSplit;

}

}

Reference-

https://developer.salesforce.com/docs/atlas.en.us.apexcode.meta/apexcode/apex_methods_system_sobject.htm