APEX

using string literals

December 5, 2017 nisarkhan APEX, Dynamic Apex, LIGHTNING, SOQL, UTIL CLASS, 0

Literal strings must be enclosed in single quotation marks. double quotation marks are reserved for enclosing attribute values, and must be escaped in strings. Use the “\” character to escape strings. Favorite

Validating an Id length(15 or 18)

July 27, 2017 nisarkhan APEX, 0

static public String validateId(String Idparam) {
        String id = String.escapeSingleQuotes(Idparam);
    	if((id.length() == 15 || id.length() == 18) && Pattern.matches('^[a-zA-Z0-9]*$', id)) {
    		return id;
    	}
    	return null;
}

static public String validateId(String Idparam) {

String id = String.escapeSingleQuotes(Idparam);

if((id.length() == 15 || id.length() == 18) && Pattern.matches('^[a-zA-Z0-9]*$', id)) {

return id;

}

return null;

}

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Check InstanceOf of String or ID

July 27, 2017 nisarkhan APEX, Dynamic Apex, 0

 static public Boolean isValidId(String strId) {
    Boolean isValid = (strId InstanceOf ID) ? true : false ;
    return isValid ;
}

static public Boolean isValidId(String strId) {

Boolean isValid = (strId InstanceOf ID) ? true : false ;

return isValid ;

}

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how to get the RecordType/Id name based on the ID

June 30, 2017 nisarkhan APEX, 0

link question another link

id myid = 'a1aV0000001czYE'; 
String sObjectType = ((Id)myid).getSobjectType().getDescribe().getName();

1 2	id myid = 'a1aV0000001czYE'; String sObjectType = ((Id)myid).getSobjectType().getDescribe().getName();

private string getRecordTypeId(String objName, String whereClause) {
    
    String sqry = ' SELECT Id, RecordtypeId, RecordType.name ';
    sqry += ' FROM '+objName+' WHERE Id =: whereClause ';
    List<SObject> objs = Database.query(sqry); 
    //system.debug('soql: '+ objs);
    string recordTypeId = '';
    for(SObject obj : objs) {
		system.debug('soql: '+ obj);
        recordTypeId = (string)obj.get('RecordTypeId');
    }
    system.debug('rtypeid: ' + recordTypeId);
    return recordTypeId;    
}

private string getRecordTypeId(String objName, String whereClause) {

String sqry = ' SELECT Id, RecordtypeId, RecordType.name ';

sqry += ' FROM '+objName+' WHERE Id =: whereClause ';

List<SObject> objs = Database.query(sqry);

//system.debug('soql: '+ objs);

string recordTypeId = '';

for(SObject obj : objs) {

system.debug('soql: '+ obj);

recordTypeId = (string)obj.get('RecordTypeId');

}

system.debug('rtypeid: ' + recordTypeId);

return recordTypeId;

}

private string getRecordTypeName(string objName, string whereClause) {
    String sqry = ' Select Id,name,developername FROM RecordType ';
    sqry += ' WHERE sobjecttype =: objName AND id =: whereClause';
    List<SObject> objs = Database.query(sqry);
     string recordTypeName = '';
    for(SObject obj : objs) {
		system.debug('soql: '+ obj);
        recordTypeName = (string)obj.get('developername');
    }
    system.debug('recordTypeName: ' + recordTypeName);
    return recordTypeName;   
}

private string getRecordTypeName(string objName, string whereClause) {

String sqry = ' Select Id,name,developername FROM RecordType ';

sqry += ' WHERE sobjecttype =: objName AND id =: whereClause';

List<SObject> objs = Database.query(sqry);

string recordTypeName = '';

for(SObject obj : objs) {

system.debug('soql: '+ obj);

recordTypeName = (string)obj.get('developername');

}

system.debug('recordTypeName: ' + recordTypeName);

return recordTypeName;

}

getRecordTypeId(sObjectType, myId);

getRecordTypeName(sObjectType, getRecordTypeId(sObjectType, myId));

getRecordTypeId(sObjectType, myId);

getRecordTypeName(sObjectType, getRecordTypeId(sObjectType, myId));

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How to add a confirm dialog to a command button

June 20, 2017 nisarkhan APEX, 0

<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)

June 19, 2017 nisarkhan APEX, Dynamic Apex, 0

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

June 8, 2017 nisarkhan APEX, 0

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

June 8, 2017 nisarkhan APEX, 0

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

May 11, 2017 nisarkhan APEX, 0

PowerPoint DYNAMIC APEX Favorite

Randomizer

May 10, 2017 nisarkhan APEX, 0

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);

}

Favorite

APEX

using string literals

Validating an Id length(15 or 18)

Check InstanceOf of String or ID

how to get the RecordType/Id name based on the ID

How to add a confirm dialog to a command button

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

Cloning dynamic in Apex

Apex passing string variable within quotes

dynamic apex

Randomizer

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