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Vladimir Bessonov how to assign Type dynamically?
How I can define Type T dynamically?
see code below
public string createObject(String ProjectName, String ObjectName, ID ObjectID, CreateObjectData ObjData) {
Project project = ProjectMap.Projects.get(ProjectName);
Type T;
switch on ObjectName {
T = Type.forName('Propulsion_Part__c');
}
when 'Truck' {
T = Type.forName('Truck_Part__c');
}
}
List<T> PartList = New List<T>(); ....
see code below
public string createObject(String ProjectName, String ObjectName, ID ObjectID, CreateObjectData ObjData) {
Project project = ProjectMap.Projects.get(ProjectName);
Type T;
switch on ObjectName {
T = Type.forName('Propulsion_Part__c');
}
when 'Truck' {
T = Type.forName('Truck_Part__c');
}
}
List<T> PartList = New List<T>(); ....
You can use Type.forName and Type.newInstance to create new objects dynamically. See the example below:
Let me know if you need any further help on this.
Thanks,
Abhishek Bansal.
Yes, the list will be casted to your custom object. Please use this statement:
Thanks,
Abhishek Bansal.
It looks like the code you proposed tries to cast to sObject.
I think we need to pass the list in order to type cast into a list. You can use the below code:
Let me know if you still face any issues.
Thanks,
Abhishek Bansal.
I cannot use targetType for a couple of objects I need to create. I add them to the parent object.
Error force-app/main/default/classes/CreateObjectForProject.cls Invalid type: targetType (82:25)
E
rror force-app/main/default/classes/CreateObjectForProject.cls Method does not exist or incorrect signature: void add(targetType) from the type List<SObject> (87:32)
ERROR running force:source:push: Push failed.
also this happens after casting
00:17:30:159 VARIABLE_ASSIGNMENT [32]|e|"common.apex.runtime.impl.ExecutionException: Attempt to de-reference a null object"|0x25b1c5b6
I don't know.
But still List<SObject> PartList = (List<SObject>)Type.forName(listType).newInstance();
in c++ it would be casting to SObject not to Type.forName(listType).newInstance().
Apex is strange
I would be much easy if List<Type.forName(listType).newInstance()> worked. Aperantly it is not
Can you paste your complete code where you are getting this error:
Method does not exist or incorrect signature: void add(targetType) from the type List<SObject> (87:32)
I think you are doing something wrong. Just wanted to check. If possible we can coneect on a call and sort this out.
Thanks,
Abhishek Bansal.
Gmail: abhibansal2790@gmail.com
Skype: abhishek.bansal2790
Phone: +917357512102
* Author: Vladimir Bessonov
* Date: Aug 30, 2020
* Descpription: *
*/
public without sharing class CreateObjectForProject implements ICreateObjectForProject{
private string validateObjectCreateRequest(CreateObjectData data){
string errors='';
if(data.PartNameList.isEmpty())
{
errors=(string.isBlank(errors)?'':errors+',')+'PartNameList is empty, cannot creare Object';
}
if(data.PartMaterialNumberList.isEmpty())
{
errors=(string.isBlank(errors)?'':errors+',')+'PartMaterialNumberList is empty, cannot creare Object';
}
if(data.PartSupplierList.isEmpty())
{
errors=(string.isBlank(errors)?'':errors+',')+'PartSupplierList is empty, cannot creare Object';
}
if(data.PartSupplierPartNumberList.isEmpty())
{
errors=(string.isBlank(errors)?'':errors+',')+'PartSupplierPartNumberList is empty, cannot creare Object';
}
if(String.isBlank(data.APIname))
{
errors=(string.isBlank(errors)?'':errors+',')+'APIname is empty, cannot creare Object';
}
if(String.isBlank(data.Name))
{
errors=(string.isBlank(errors)?'':errors+',')+'Name is empty, cannot creare Object';
}
return errors;
}
public string createObject(String ProjectName, String ObjectName, ID ObjectID, CreateObjectData ObjData) {
//Project project = ProjectMap.Projects.get(ProjectName);
// switch on ObjectName {
// when 'Propulsion' { // when block 1
// Schema.SObjectType targetType = Schema.getGlobalDescribe().get(objectName);
// String listType = 'List<' + targetType + '>';
// List<SObject> castRecords = (List<SObject>)Type.forName(listType).newInstance();
// }
// when 'Truck' { // when block 2
// List<SObject> PL = (List<SObject>)Type.forName('Truck_Part__c').newInstance();
// // T = Type.forName('Truck_Part__c');
// // T = Schema.getGlobalDescribe().get('Truck_part__c').getDescribe() ;
// }
// }
//System.debug('Part List' + PartList);
Schema.SObjectType targetType = Schema.getGlobalDescribe().get(objectName);
String listType = 'List<' + targetType + '>';
List<SObject> PartList = (List<SObject>)Type.forName(listType).newInstance();
System.debug(PartList);
// List<Propulsion_Part__c> PartList = New List<Propulsion_Part__c>();
List<String> PartNames = ObjData.PartNameList;
List<String> PartMaterialNumber = ObjData.PartMaterialNumberList;
List<String> PartSupplierPartNumber = ObjData.PartSupplierPartNumberList;
List<String> PartSupplier = ObjData.PartSupplierList;
for(Integer i=0; i< PartNames.size();i++){
targetType part = new targetType(Propulsion_Set__c=ObjectID, Name = PartNames[i],
Material_Number__c = PartMaterialNumber[i],
Supplier_Part_Number__c = PartSupplierPartNumber[i],
Supplier__c = PartSupplier[i]);
// insert part;
PartList.add(part);
}
Database.SaveResult[] srList = Database.insert(PartList, true);
for(Database.SaveResult sr : srList) {
if (sr.isSuccess()) {
System.debug('Successfully added parts to prop set: ' + ObjectID);
} else {
for(Database.Error objErr : sr.getErrors()) {
System.debug('Error ocurred: ');
System.debug(objErr.getStatusCode() + ' : ' + objErr.getMessage());
System.debug('Prop part affected' + ':'+ objErr.getFields());
}
}
}
return ObjectID;
// add checks and throw exception
// add factory class and simplify CreateObjectForProject - separate create Prop, creat Truck, ext
}
public string createObjectRequest(String ProjectName, String ObjectName, ID ObjectID, CreateObjectData ObjData) {
string errors=validateObjectCreateRequest(ObjData);
if(string.isNotBlank(errors))
{
// TODO: Add class BaseException
// TODO: throw new BaseException(errors);
}
return createObject(ProjectName, ObjectName, ObjectID, ObjData);
}
}