Assigning Custom Setting value to Custom object Field

Question

    /***********Custom setting **********/
Map<string, CountryCO__c> codes = CountryCO__c.getAll(); 
        string pb;
        list<string> pb1=new list<string>();

           for (string key: codes.keyset())
          {
                CountryCO__c code = codes.get(key);
               pb=code.Country_code__c ;
                 pb1.add(pb);
               } 

List<CountryListWrapper> CountryList= new List<CountryListWrapper>(); 

 List<Country__c> countrynew = new List<Country__c> ([Select Countrycode,price,state from Country__c ] ) ; //Custom object

      for(Country__c c: countrynew ) {  

              CountryListWrapper cl = new CountryListWrapper();

                cl .Countrycode = c.Country_code__c ;
                cl .Prodprice uctCode = c.price__c ;
                cl .state = c.state__c ;
                CountryList.add(cl );

           }
/*******Wrapper class*********/
 public class CountryListWrapper{
        @AuraEnabled public Integer Countrycode {get;set;}
 @AuraEnabled public Integer price {get;set;}
 @AuraEnabled public Integer state {get;set;}
}

I have created a custom setting with two fields(Country,Country Code).How to create a map with these two fields,so that I can take key's value and assign it to a wrapper class variable?The variable in wrapper class is assigned to a list containing custom object fields. Of-which one field in custom object is Country Code,which should be assigned with custom settings Country code field value.

Answer 1

You can get most of the way there with built-in Custom Settings methods.

If you utilize the Name field on your custom setting for the country code and, say, Country_Name__c for the name, you can call

Map<String, My_Custom_Setting__c> myMap = My_Custom_Setting__c.getAll();

Then your Map will have the country codes as its keys, and the Custom Settings objects as its values, so you can just do

myMap.get('US').Country_Name__c

to get a name.

For bonus points, wrap this in a utility class to make it easy to just call

SomeUtilityClass.getCountryNameForCode(someCode);

But this saves you the need to iterate and build your own Map.