如何在闪电组件中使用字段集

Question

I want to create a custom lightning component to create new Case records and need to use fieldset to include fields in component. Need to use this only for one object. I never used fieldsets so dont have any idea on it. It would be really great if you can share some sample code or any link for the same.

Answer 1

You can use this utility class

This is the wrapper class to hold the meta info about the fields

public with sharing class DataTableColumns {
    @AuraEnabled
    public String label {get;set;}
    @AuraEnabled       
    public String fieldName {get;set;}
    @AuraEnabled
    public String type {get;set;}

    public DataTableColumns(String label, String fieldName, String type){
        this.label = label;
        this.fieldName = fieldName;
        this.type = type;            
    }
}

Class FieldSetHelper has a method getColumns () this will return the list of DataTableColumns wrapper containing the information about the filedset columns

public with sharing class FieldSetHelper {

/*
    @param String strObjectName     : required. Object name to get the required filed set
    @param String strFieldSetName   : required. FieldSet name

    @return  List<DataTableColumns> list of columns in the specified fieldSet
*/
public static List<DataTableColumns> getColumns (String strObjectName, String strFieldSetName) {
    Schema.SObjectType SObjectTypeObj = Schema.getGlobalDescribe().get(strObjectName);
    Schema.DescribeSObjectResult DescribeSObjectResultObj = SObjectTypeObj.getDescribe();            
    Schema.FieldSet fieldSetObj = DescribeSObjectResultObj.FieldSets.getMap().get(strFieldSetName);

    List<DataTableColumns> lstDataColumns = new List<DataTableColumns>();

    for( Schema.FieldSetMember eachFieldSetMember : fieldSetObj.getFields() ){
        String dataType = 
             String.valueOf(eachFieldSetMember.getType()).toLowerCase();

             DataTableColumns datacolumns = new DataTableColumns( 
             String.valueOf(eachFieldSetMember.getLabel()) ,                                                
             String.valueOf(eachFieldSetMember.getFieldPath()),                                              
             String.valueOf(eachFieldSetMember.getType()).toLowerCase() );
             lstDataColumns.add(datacolumns);
        }
        return lstDataColumns;
    } 
}

After you getting all those field set information the create lightning component dynamically