APEX – Salesforce!

How to add a confirm dialog to a command button

By nisarkhan | June 20, 2017 | No Comments | APEX

<apex:commandButton reRender="pb" value="Associate Payment" action="{!associatePayment}" onclick="if(!confirm('Do you want to proceed?')){return false};" title="Associate Payment"/>

1	<apex:commandButton reRender="pb" value="Associate Payment" action="{!associatePayment}" onclick="if(!confirm('Do you want to proceed?')){return false};" title="Associate Payment"/>

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How to get FieldSet fields in Apex Dynamically (fieldset name is not static)

By nisarkhan | June 19, 2017 | No Comments | APEX, Dynamic Apex

public static List<Schema.FieldSetMember> readFieldSet(String fieldSetName, String ObjectName)
{
    Map<String, Schema.SObjectType> GlobalDescribeMap = Schema.getGlobalDescribe(); 
    Schema.SObjectType SObjectTypeObj = GlobalDescribeMap.get(ObjectName);
    Schema.DescribeSObjectResult DescribeSObjectResultObj = SObjectTypeObj.getDescribe();

    //system.debug('====>' + DescribeSObjectResultObj.FieldSets.getMap().get(fieldSetName));

    Schema.FieldSet fieldSetObj = DescribeSObjectResultObj.FieldSets.getMap().get(fieldSetName);

    //List<Schema.FieldSetMember> fieldSetMemberList =  fieldSetObj.getFields();
    //system.debug('fieldSetMemberList ====>' + fieldSetMemberList);  
    return fieldSetObj.getFields(); 
}

public static List<Schema.FieldSetMember> readFieldSet(String fieldSetName, String ObjectName)

{

Map<String, Schema.SObjectType> GlobalDescribeMap = Schema.getGlobalDescribe();

Schema.SObjectType SObjectTypeObj = GlobalDescribeMap.get(ObjectName);

Schema.DescribeSObjectResult DescribeSObjectResultObj = SObjectTypeObj.getDescribe();

//system.debug('====>' + DescribeSObjectResultObj.FieldSets.getMap().get(fieldSetName));

Schema.FieldSet fieldSetObj = DescribeSObjectResultObj.FieldSets.getMap().get(fieldSetName);

//List<Schema.FieldSetMember> fieldSetMemberList = fieldSetObj.getFields();

//system.debug('fieldSetMemberList ====>' + fieldSetMemberList);

return fieldSetObj.getFields();

}

You can use result as follows –

List<Schema.FieldSetMember> fieldSetMemberList =  Util.readFieldSet('Account_FieldSet','Account');
for(Schema.FieldSetMember fieldSetMemberObj : fieldSetMemberList)
{
    system.debug('API Name ====>' + fieldSetMemberObj.getFieldPath()); //api name
    system.debug('Label ====>' + fieldSetMemberObj.getLabel());
    system.debug('Required ====>' + fieldSetMemberObj.getRequired());
    system.debug('DbRequired ====>' + fieldSetMemberObj.getDbRequired());
    system.debug('Type ====>' + fieldSetMemberObj.getType());   //type - STRING,PICKLIST
}

List<Schema.FieldSetMember> fieldSetMemberList = Util.readFieldSet('Account_FieldSet','Account');

for(Schema.FieldSetMember fieldSetMemberObj : fieldSetMemberList)

{

system.debug('API Name ====>' + fieldSetMemberObj.getFieldPath()); //api name

system.debug('Label ====>' + fieldSetMemberObj.getLabel());

system.debug('Required ====>' + fieldSetMemberObj.getRequired());

system.debug('DbRequired ====>' + fieldSetMemberObj.getDbRequired());

system.debug('Type ====>' + fieldSetMemberObj.getType()); //type - STRING,PICKLIST

}

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Cloning dynamic in Apex

By nisarkhan | June 8, 2017 | No Comments | APEX

public with sharing class Utils{ 
 
    // Returns a dynamic SOQL statement for the whole object, includes only creatable fields since we will be inserting a cloned result of this query
    public static string getCreatableFieldsSOQL(String objectName, String whereClause){
         
        String selects = '';
         
        if (whereClause == null || whereClause == ''){ return null; }
         
        // Get a map of field name and field token
        Map<String, Schema.SObjectField> fMap = Schema.getGlobalDescribe().get(objectName.toLowerCase()).getDescribe().Fields.getMap();
        list<string> selectFields = new list<string>();
         
        if (fMap != null){
            for (Schema.SObjectField ft : fMap.values()){ // loop through all field tokens (ft)
                Schema.DescribeFieldResult fd = ft.getDescribe(); // describe each field (fd)
                if (fd.isCreateable()){ // field is creatable
                    selectFields.add(fd.getName());
                }
            }
        }
         
        if (!selectFields.isEmpty()){
            for (string s:selectFields){
                selects += s + ',';
            }
            if (selects.endsWith(',')){selects = selects.substring(0,selects.lastIndexOf(','));}
             
        }
         
        return 'SELECT ' + selects + ' FROM ' + objectName + ' WHERE ' + whereClause;
         
    }
 
}

public with sharing class Utils{

// Returns a dynamic SOQL statement for the whole object, includes only creatable fields since we will be inserting a cloned result of this query

public static string getCreatableFieldsSOQL(String objectName, String whereClause){

String selects = '';

if (whereClause == null || whereClause == ''){ return null; }

// Get a map of field name and field token

Map<String, Schema.SObjectField> fMap = Schema.getGlobalDescribe().get(objectName.toLowerCase()).getDescribe().Fields.getMap();

list<string> selectFields = new list<string>();

if (fMap != null){

for (Schema.SObjectField ft : fMap.values()){ // loop through all field tokens (ft)

Schema.DescribeFieldResult fd = ft.getDescribe(); // describe each field (fd)

if (fd.isCreateable()){ // field is creatable

selectFields.add(fd.getName());

}

if (!selectFields.isEmpty()){

for (string s:selectFields){

selects += s + ',';

}

if (selects.endsWith(',')){selects = selects.substring(0,selects.lastIndexOf(','));}

}

return 'SELECT ' + selects + ' FROM ' + objectName + ' WHERE ' + whereClause;

}

/* query lead and then clone it */
String soql = Utils.getCreatableFieldsSOQL('lead','id=\'00Q3000000aKwVN\'');
lead l = (Lead)Database.query(soql);
lead l2 = l.clone(false, true);
insert l2;

/* query lead and then clone it */

String soql = Utils.getCreatableFieldsSOQL('lead','id=\'00Q3000000aKwVN\'');

lead l = (Lead)Database.query(soql);

lead l2 = l.clone(false, true);

insert l2;

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Apex passing string variable within quotes

By nisarkhan | June 8, 2017 | No Comments | APEX

String query='select column_name from information_schema.COLUMNS 
where table_name =\''+ String.escapeSingleQuotes(selectedValue1)+'\'';

1 2	String query='select column_name from information_schema.COLUMNS where table_name =\''+ String.escapeSingleQuotes(selectedValue1)+'\'';

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dynamic apex

By nisarkhan | May 11, 2017 | No Comments | APEX

PowerPoint DYNAMIC APEX Favorite

Randomizer

By nisarkhan | May 10, 2017 | No Comments | APEX

Randomizer

public class Randomizer {

     //returns a random Integer
     public static Integer getRandomNumber(Integer size){
          Double d = math.random() * size;
          return d.intValue();
     }

     //returns either true or false randomly
     public static Boolean getRandomBoolean(){
          if(math.mod(getRandomNumber(10),2) == 0){
               return true;
          }
          else{
               return false;
          }
     }

     //Get's a random value from a list of strings
     public static String getRandomString(List<String> strings){
          List<Double> ranks = new List<Double>();
          Map<Double,String> rankMap = new Map<Double,String>();

          for(String s : strings){
               Boolean isDup = true;
               Double rank;

               While(isDup){
                    Double x = getRandomNumber(100000);
                    if(!rankMap.containsKey(x)){
                         rank = x;
                         isDup = false;
                    }
               }

               ranks.add(rank);
               rankMap.put(rank,s);
          }

          ranks.sort();
          return rankMap.get(ranks.get(0));
     }

     //Returns a random picklist value 
     public static string getRandomPickListValue(Sobject s_object, String field_name, Boolean allow_blank){
          List<String> Strings = new List<String>();
          if(allow_blank){
               String b = '';
               Strings.add(b);
          }
            Schema.sObjectType sobject_type = s_object.getSObjectType();
            Schema.DescribeSObjectResult sobject_describe = sobject_type.getDescribe();
            Map<String, Schema.SObjectField> field_map = sobject_describe.fields.getMap();
            List<Schema.PicklistEntry> pick_list_values = field_map.get(field_name).getDescribe().getPickListValues();
            for (Schema.PicklistEntry a : pick_list_values) {
                Strings.add(a.getValue());
            }
            return getRandomString(Strings);
     }

     //returns a map of all picklists and multiselect picklists for a givien object
     //the keyset is the field name using proper case
     public static Map<String,List<String>> getPicVals(sObject s_object){
          Map<String,List<String>> valueMap = new Map<String,List<String>>();
          Schema.sObjectType sobject_type = s_object.getSObjectType();
          Schema.DescribeSObjectResult r = sobject_type.getDescribe();
          Map<String, Schema.SObjectField> field_map = r.fields.getMap();

          for(String s : field_map.keyset()){
               List<String> strings = new List<String>();
               Schema.DescribeFieldResult F = field_map.get(s).getDescribe();
               if(f.GetType() == Schema.DisplayType.Picklist || f.GetType() == Schema.DisplayType.MultiPicklist){
                    List<Schema.PicklistEntry> pick_list_values = field_map.get(s).getDescribe().getPickListValues();
                    for (Schema.PicklistEntry a : pick_list_values) {
                         strings.add(a.getValue());
                   }
                   valueMap.put(String.valueOf(field_map.get(s)),strings);
               }
          }
          return valueMap;
     }

     //Returns Lorem Ipsum placeholder text.
     public static String getPlaceholderText(Integer length){
          String firstSentence = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. ';
          List<String> sentenceList = new List<String>();
          sentenceList.add('Vivamus nec lacus eget massa cursus pulvinar. ');
          sentenceList.add('Morbi vel odio eget nunc auctor posuere eget eget ante. ');
          sentenceList.add('Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. ');
          sentenceList.add('Pellentesque lacus eros. ');
          sentenceList.add('Sed suscipit tristique varius. ');
          sentenceList.add('Mauris ultricies, nibh eu fermentum accumsan, justo quam pulvinar tellus, sed tempor quam eros sit amet ante. ');
          sentenceList.add('Duis mi libero, cursus nec facilisis ut, commodo eget nunc. ');
          sentenceList.add('Nulla eros augue, iaculis sed volutpat et, sagittis quis sem. ');
          sentenceList.add('Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Nulla placerat accumsan vulputate. ');
          sentenceList.add('Fusce placerat tellus eget tellus faucibus a gravida sapien fermentum. ');

          String s = firstSentence;

          while (s.length() < length+1){
               s += getRandomString(sentenceList);
          }

          s = s.trim();

          while (s.length() >= length-1){
               s = s.substring(0,s.length()-1).trim();
          } 

          s = s.substring(0,s.length()-1).trim();
          s += '.';
          return s;
     }

     static testMethod void testRandomizer() {
          test.startTest();
          Integer testInt = getRandomNumber(10);
          Boolean testBool = getRandomBoolean();
          List<String> testStringList = new List<String>();
          testStringList.add('one');
          testStringList.add('two');
          testStringList.add('three');
          String testString = getRandomString(testStringList);
          String testString2 = getRandomPickListValue(new Account(), 'Industry', true);
          String testString3 = getRandomPickListValue(new Account(), 'Industry', false);
          Map<String,List<String>> testMap = getPicVals(new Account());
          test.stopTest();
          String testString4 = getPlaceholderText(300);
     }
}

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public class Randomizer {

//returns a random Integer

public static Integer getRandomNumber(Integer size){

Double d = math.random() * size;

return d.intValue();

}

//returns either true or false randomly

public static Boolean getRandomBoolean(){

if(math.mod(getRandomNumber(10),2) == 0){

return true;

}

else{

return false;

}

//Get's a random value from a list of strings

public static String getRandomString(List<String> strings){

List<Double> ranks = new List<Double>();

Map<Double,String> rankMap = new Map<Double,String>();

for(String s : strings){

Boolean isDup = true;

Double rank;

While(isDup){

Double x = getRandomNumber(100000);

if(!rankMap.containsKey(x)){

rank = x;

isDup = false;

}

ranks.add(rank);

rankMap.put(rank,s);

}

ranks.sort();

return rankMap.get(ranks.get(0));

}

//Returns a random picklist value

public static string getRandomPickListValue(Sobject s_object, String field_name, Boolean allow_blank){

List<String> Strings = new List<String>();

if(allow_blank){

String b = '';

Strings.add(b);

}

Schema.sObjectType sobject_type = s_object.getSObjectType();

Schema.DescribeSObjectResult sobject_describe = sobject_type.getDescribe();

Map<String, Schema.SObjectField> field_map = sobject_describe.fields.getMap();

List<Schema.PicklistEntry> pick_list_values = field_map.get(field_name).getDescribe().getPickListValues();

for (Schema.PicklistEntry a : pick_list_values) {

Strings.add(a.getValue());

}

return getRandomString(Strings);

}

//returns a map of all picklists and multiselect picklists for a givien object

//the keyset is the field name using proper case

public static Map<String,List<String>> getPicVals(sObject s_object){

Map<String,List<String>> valueMap = new Map<String,List<String>>();

Schema.sObjectType sobject_type = s_object.getSObjectType();

Schema.DescribeSObjectResult r = sobject_type.getDescribe();

Map<String, Schema.SObjectField> field_map = r.fields.getMap();

for(String s : field_map.keyset()){

List<String> strings = new List<String>();

Schema.DescribeFieldResult F = field_map.get(s).getDescribe();

if(f.GetType() == Schema.DisplayType.Picklist || f.GetType() == Schema.DisplayType.MultiPicklist){

List<Schema.PicklistEntry> pick_list_values = field_map.get(s).getDescribe().getPickListValues();

for (Schema.PicklistEntry a : pick_list_values) {

strings.add(a.getValue());

}

valueMap.put(String.valueOf(field_map.get(s)),strings);

}

return valueMap;

}

//Returns Lorem Ipsum placeholder text.

public static String getPlaceholderText(Integer length){

String firstSentence = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. ';

List<String> sentenceList = new List<String>();

sentenceList.add('Vivamus nec lacus eget massa cursus pulvinar. ');

sentenceList.add('Morbi vel odio eget nunc auctor posuere eget eget ante. ');

sentenceList.add('Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. ');

sentenceList.add('Pellentesque lacus eros. ');

sentenceList.add('Sed suscipit tristique varius. ');

sentenceList.add('Mauris ultricies, nibh eu fermentum accumsan, justo quam pulvinar tellus, sed tempor quam eros sit amet ante. ');

sentenceList.add('Duis mi libero, cursus nec facilisis ut, commodo eget nunc. ');

sentenceList.add('Nulla eros augue, iaculis sed volutpat et, sagittis quis sem. ');

sentenceList.add('Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Nulla placerat accumsan vulputate. ');

sentenceList.add('Fusce placerat tellus eget tellus faucibus a gravida sapien fermentum. ');

String s = firstSentence;

while (s.length() < length+1){

s += getRandomString(sentenceList);

}

s = s.trim();

while (s.length() >= length-1){

s = s.substring(0,s.length()-1).trim();

}

s = s.substring(0,s.length()-1).trim();

s += '.';

return s;

}

static testMethod void testRandomizer() {

test.startTest();

Integer testInt = getRandomNumber(10);

Boolean testBool = getRandomBoolean();

List<String> testStringList = new List<String>();

testStringList.add('one');

testStringList.add('two');

testStringList.add('three');

String testString = getRandomString(testStringList);

String testString2 = getRandomPickListValue(new Account(), 'Industry', true);

String testString3 = getRandomPickListValue(new Account(), 'Industry', false);

Map<String,List<String>> testMap = getPicVals(new Account());

test.stopTest();

String testString4 = getPlaceholderText(300);

}

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concatenate using string.join

By nisarkhan | May 5, 2017 | No Comments | APEX

List<String> messages = new List<String>();
messages.add('one');
messages.add('two');
messages.add('three');

Employee__c emp = [SELECT Id,Emp_Message__c FROM Employee__c WHERE Id =: empId limit 1 ];
emp.Emp_Message__c += ',' + String.join(messages, ',');
update emp;

List<String> messages = new List<String>();

messages.add('one');

messages.add('two');

messages.add('three');

Employee__c emp = [SELECT Id,Emp_Message__c FROM Employee__c WHERE Id =: empId limit 1 ];

emp.Emp_Message__c += ',' + String.join(messages, ',');

update emp;

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Dynamically access Custom Labels from Apex Class

By nisarkhan | April 20, 2017 | No Comments | APEX

Retrieve Salesforce custom label dynamically in Apex Ever wonder if it is possible to retrieve custom labels dynamically but not sure whether it is possible? Well, the answer is yes. You can retrieve custom labels dynamically. Here is how you can achieve it. You just need to integrate the following code in your apex class. […]

find the object name by passing id

By nisarkhan | March 15, 2017 | No Comments | APEX, SALESFORCE

Id myId = 'a0141000007TF4D';     
system.debug(myId.getSobjectType().getDescribe().getName());

1 2	Id myId = 'a0141000007TF4D'; system.debug(myId.getSobjectType().getDescribe().getName());

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