Get current User Info using Apex in Salesforce

String FirstName = UserInfo.getFirstName();//Returns the context user's first name.
System.Debug('FirstName-' + FirstName);
String LastName = UserInfo.getLastName();//Returns the context user's last name.
System.Debug('LastName-' + LastName);
String Name = UserInfo.getName();//Returns the context user's full name.
System.Debug('Name-' + Name);
String UserEmail = UserInfo.getUserEmail();//Returns the current user’s email address.
System.Debug('UserEmail-' + UserEmail);
String UserType = UserInfo.getUserType();//Returns the context user's type.
System.Debug('UserType-' + UserType);
String UserId = UserInfo.getUserId();//Returns the context user's ID.
System.Debug('UserId-' + UserId);
String UserName = UserInfo.getUserName();//Returns the context user's login name.
System.Debug('UserName-' + UserName);
String ProfileId = UserInfo.getProfileId();//Returns the context user's profile ID.
System.Debug('ProfileId-' + ProfileId);
String UserRoleId = UserInfo.getUserRoleId();//Returns the context user's role ID.
System.Debug('UserRoleId-' + UserRoleId);
String SessionId = UserInfo.getSessionId();//Returns the session ID for the current session.
System.Debug('SessionId-' + SessionId);
TimeZone tz = UserInfo.getTimeZone();//Returns the current user’s local time zone.
System.Debug('TimeZone-' + tz);
String DefaultCurrency = UserInfo.getDefaultCurrency();//Returns the context user's default currency code for multiple currency organizations or the organization's currency code for single currency organizations.
System.Debug('DefaultCurrency-' + DefaultCurrency);
String Language = UserInfo.getLanguage();//Returns the context user's language.
System.Debug('Language-' + Language);
String Locale = UserInfo.getLocale();//Returns the context user's locale.
System.Debug('Locale-' + Locale);
String OrganizationId = UserInfo.getOrganizationId();//Returns the context organization's ID.
System.Debug('OrganizationId-' + OrganizationId);
String OrganizationName = UserInfo.getOrganizationName();//Returns the context organization's company name.
System.Debug('OrganizationName-' + OrganizationName);

Accessing keys from a map in a SOQL Query

Using .KeySet() on a map, we will get a list of all the keys returned.

Map<Id, Master_Obj__c> masterMap = new Map<Id, Master_Obj__c>([SELECT Id, Name FROM Master_Obj__c]);
List<Detail_Obj__c> objDetailList = [Select Id, Name FROM Detail_Obj__c WHERE Master_Obj__c IN :masterMap.KeySet()]

How to cover pagereference method in test class

For Custom Controller

//Page reference to your VF Page
PageReference pageRef = Page.TestPage;

//Pass necessary parameter

//init controller 
CustomCtrl objCtrl = new CustomCtrl();

//Call pageRef mymethod
PageReference objPageRef = objCtrl.mymethod();

//Put system asserts
System.assertEquals (null,pageRef);

For Standard Controller

//First create record
Account acc = New Account();
acc.Name = 'Test Account';

//Page reference to your VF Page
PageReference pageRef = Page.TestPage;

//Pass necessary parameter

//Pass your object to controller     
ApexPages.StandardController stc = new ApexPages.StandardController(acc);

//Call controller
CustomCtrl objCtrl = new CustomCtrl(stc);

//Call pageRef mymethod
PageReference objPageRef = objCtrl.mymethod();

//Put system asserts
System.assertEquals (null,pageRef);

Open a visualforce page in same primary tab by closing the current primary tab in Salesforce console

try {
sforce.console.getEnclosingPrimaryTabId(function (result)
sforce.console.openPrimaryTab(, ‘/apex/CaseSummary?id={!Case.Id}’, true);
alert(‘An Error has Occured. Error:’ + ex);

Dynamic Getting sObject Picklist Values on Lightning Component

In this example we will fetch Picklist field “Industry” values from “Account” object and set in ui:inputSelect on Lightning Component.

Apex Class:

public class GetPicklistValuesController {
    public static List <String> getPicklistValues(sObject obj, String fld) {
        List <String> pList = new list <String>();
        //Get the object type of the SObject.
        Schema.sObjectType objType = obj.getSObjectType();

        //Describe the SObject using its object type.
        Schema.DescribeSObjectResult objDescribe = objType.getDescribe();

        //Get a map of fields for the SObject
        Map<String, Schema.SObjectField> fieldMap = objDescribe.fields.getMap();

        //Get the list of picklist values for this field.
        List<Schema.PicklistEntry > values = fieldMap.get(fld).getDescribe().getPickListValues();

        //Add these values to the selectoption list.
        for (Schema.PicklistEntry a: values) {
        return pList;


<aura:component controller="GetPicklistValuesController" access="global" implements="force:appHostable">
    <aura:attribute name="objInfo" type="account" default="{sobjectType : 'Account'}" />
    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>    
    <div class="slds-form-element">
        <label class="slds-form-element__label" for="select-01">Select Industry</label>
        <div class="slds-select_container">
            <ui:inputSelect  aura:id="accIndustry" class="slds-select"  change="{!c.onPicklistChange}"/>

Component Helper:

    fetchPickListVal: function(component, fieldName, elementId) {
        var action = component.get("c.getPicklistValues");
            "obj": component.get("v.objInfo"),
            "fld": fieldName
        var opts = [];
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state == "SUCCESS") {
                var allValues = response.getReturnValue();
                    class: "optionClass",
                    label: "--- None ---",
                    value: ""
                for (var i = 0; i < allValues.length; i++) {
                        class: "optionClass",
                        label: allValues[i],
                        value: allValues[i]
                component.find(elementId).set("v.options", opts);

Component Controller:

    doInit: function(component, event, helper) {
        helper.fetchPickListVal(component, 'Industry', 'accIndustry');
    onPicklistChange: function(component, event, helper) {
        //get the value of select option

Lightning App:

<aura:application extends="ltng:outApp" access="global">
    <c:TestComponent />