ELEVATE Advanced Workshop

Advanced Developer Workshop
Joshua Birk
Developer Evangelist
@joshbirk
joshua.birk@salesforce.com
Sanjay Savani
Solutions Engineer
@efxfan
ssavani@salesforce.com

Safe Harbor
Safe harbor statement under the Private Securities Litigation Reform Act of 1995: This presentation may contain forward-looking
statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the assumptions proves
incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking
statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections
of subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for
future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and
customer contracts or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new
functionality for our service, our new business model, our past operating losses, possible fluctuations in our operating results and rate of
growth, interruptions or delays in our Web hosting, breach of our security measures, risks associated with possible mergers and
acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate
our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling
non-salesforce.com products, and utilization and selling to larger enterprise customers. Further information on potential factors that could
affect the financial results of salesforce.com, inc. is included in our annual report on Form 10-K for the most recent fiscal quarter ended
July 31, 2011. This document and others are available on the SEC Filings section of the Investor Information section of our Web site.
Any unreleased services or features referenced in this or other press releases or public statements are not currently available and may
not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that
are currently available. Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements.

Interactive
Questions? Current projects? Feedback?

1,000,000
Salesforce Platform Developers

9 Billion
API calls last month

2.5x
Increased demand for Force.com developers

BETA TESTING
Warning: We’re trying something new

Editor Of Choice
For the Eclipse fans in the room

Warehouse Data Model
Merchandise
Name Price Inventory
Pinot $20 15
Cabernet $30 10
Malbec $20 20
Zinfandel $10 50
Invoice
Number Status Count Total
INV-01 Shipped 16 $370
INV-02 New 20 $200
Invoice Line Items
Invoice Line Merchandise Units
Sold
Unit Price Value
INV-01 1 Pinot 1 15 $20
INV-01 2 Cabernet 5 10 $150
INV-01 3 Malbec 10 20 $200
INV-02 1 Pinot 20 50 $200

http://developer.force.com/join

Apex Unit Testing
Platform level support for unit testing

Unit Testing
 Assert all use cases
 Maximize code coverage
 Test early, test often
o Logic without assertions
o 75% is the target
o Test right before deployment

Testing Context
// this is where the context of your test begins
Test.StartTest();
//execute future calls, batch apex, scheduled apex
// this is where the context ends
Text.StopTest();
System.assertEquals(a,b); //now begin assertions

Testing Permissions
//Set up user
User u1 = [SELECT Id FROM User
WHERE Alias='auser'];
//Run As U1
System.RunAs(u1){
//do stuff only u1 can do
}

Static Resource Data
List<Invoice__c> invoices =
Test.loadData(Invoice__c.sObjectType, 'InvoiceData');
update invoices;

Mock HTTP
@isTest
global class MockHttp implements HttpCalloutMock {
global HTTPResponse respond(HTTPRequest req) {
// Create a fake response
HttpResponse res = new HttpResponse();
res.setHeader('Content-Type', 'application/json');
res.setBody('{"foo":"bar"}');
res.setStatusCode(200);
return res;
}
}

Mock HTTP
@isTest
private class CalloutClassTest {
static void testCallout() {
Test.setMock(HttpCalloutMock.class, new MockHttp());
HttpResponse res = CalloutClass.getInfoFromExternalService();
// Verify response received contains fake values
String actualValue = res.getBody();
String expectedValue = '{"foo":"bar"}';
System.assertEquals(actualValue, expectedValue);
}
}

Unit Testing Tutorial
http://bit.ly/dfc_adv_workbook

SOQL
Salesforce Object Query Language

Indexed Fields
• Primary Keys
• Id
• Name
• OwnerId
Using a query with two or more indexed filters greatly increases performance
• Audit Dates
• Created Date
• Last Modified Date
• Foreign Keys
• Lookups
• Master-Detail
• CreatedBy
• LastModifiedBy
• External ID fields
• Unique fields
• Fields indexed by
Saleforce

SOQL + Maps
Map<Id,Id> accountFormMap = new Map<Id,Id>();
for (Client_Form__c form : [SELECT ID, Account__c FROM
Client_Form__c
WHERE Account__c
in :accountFormMap.keySet()])
{
accountFormMap.put(form.Account__c, form.Id);
}
Map<ID, Contact> m = new Map<ID, Contact>(
[SELECT Id, LastName FROM Contact]
);

Child Relationships
List<Invoice__c> invoices = [SELECT Name,
(SELECT Merchandise__r.Name
from Line_Items__r)
FROM Invoice__c];
List<Invoice__c> invoices = [SELECT Name,
(SELECT Child_Field__c
from Child_Relationship__r)
FROM Invoice__c];

SOQL Loops
public void massUpdate() {
for (List<Contact> contacts: [SELECT FirstName, LastName
FROM Contact])
{
for(Contact c : contacts) {
if (c.FirstName == 'Barbara' &&
c.LastName == 'Gordon') {
c.LastName = 'Wayne';
}
}
update contacts;
}
}

ReadOnly
<apex:page controller="SummaryStatsController" readOnly="true">
<p>Here is a statistic: {!veryLargeSummaryStat}</p>
</apex:page>
public class SummaryStatsController {
public Integer getVeryLargeSummaryStat() {
Integer closedOpportunityStats =
[SELECT COUNT() FROM Opportunity WHERE
Opportunity.IsClosed = true];
return closedOpportunityStats;
}
}

SOQL Polymorphism
List<EVENT> events = [SELECT Subject,
TYPEOF What
WHEN Account THEN Phone, NumberOfEmployees
WHEN Opportunity THEN Amount, CloseDate
END
FROM Event];

Offset
SELECT Name
FROM Merchandise__c
WHERE Price__c > 5.0
ORDER BY Name
LIMIT 10
OFFSET 0
SELECT Name
FROM Merchandise__c
WHERE Price__c > 5.0
ORDER BY Name
LIMIT 10
OFFSET 10

AggregateResult
List<AggregateResult> res = [
SELECT SUM(Line_Item_Total__c) total,
Merchandise__r.Name name
from Line_Item__c
where Invoice__c = :id
Group By Merchandise__r.Name
];
List<AggregateResult> res = [
SELECT SUM(INTEGER FIELD) total,
Child_Relationship__r.Name name
from Parent__c
where Related_Field__c = :id
Group By Child_Relationship__r.Name
];

Geolocation
String q =
'SELECT ID, Name, ShippingStreet, ShippingCity from Account ';
q+= 'WHERE DISTANCE(Location__c,
GEOLOCATION('+String.valueOf(lat)';
q+= ','+String.valueOf(lng)+'), 'mi')';
q+= ' < 100';
accounts = Database.query(q);

SOSL
List<List<SObject>> allResults =
[FIND 'Tim' IN Name Fields RETURNING
lead(id, name, LastModifiedDate
WHERE LastModifiedDate > :oldestDate),
contact(id, name, LastModifiedDate
account(id, name, LastModifiedDate
user(id, name, LastModifiedDate
WHERE LastModifiedDate > :oldestDate)
LIMIT 5];

Visualforce Controllers
Apex for constructing dynamic pages

Viewstate
Hashed information block to track server side transports

Reducing Viewstate
//Transient data that does not get sent back,
//reduces viewstate
transient String userName {get; set;}
//Static and/or private vars
//also do not become part of the viewstate
static private integer VERSION_NUMBER = 1;

Reducing Viewstate
//Asynchronous JavaScript callback. No viewstate.
//RemoteAction is static, so has no access to Controller context
@RemoteAction
public static Account retrieveAccount(ID accountId) {
try {
Account a = [SELECT ID, Name from ACCOUNT
WHERE Id =:accountID LIMIT 1];
return a;
} catch (DMLException e) {
return null;
}
}

Handling Parameters
//check the existence of the query parameter
if(ApexPages.currentPage().getParameters().containsKey(„id‟)) {
try {
Id aid = ApexPages.currentPage().getParameters().get(„id‟);
Account a =
[SELECT Id, Name, BillingStreet FROM Account
WHERE ID =: aid];
} catch(QueryException ex) {
ApexPages.addMessage(new ApexPages.Message(
ApexPages.Severity.FATAL, ex.getMessage()));
return;
}
}

SOQL Injection
String account_name = ApexPages.currentPage().getParameters().get('name');
account_name = String.escapeSingleQuotes(account_name);
List<Account> accounts = Database.query('SELECT ID FROM
Account WHERE Name = '+account_name);

Cookies
//Cookie =
//new Cookie(String name, String value, String path,
// Integer milliseconds, Boolean isHTTPSOnly)
public PageReference setCookies() {
Cookie companyName =
new Cookie('accountName','TestCo',null,315569260,false);
ApexPages.currentPage().setCookies(new Cookie[]{companyName});
return null;
}
public String getCookieValue() {
return ApexPages.currentPage().
getCookies().get('accountName').getValue();
}

Inheritance and Construction
public with sharing class PageController
implements SiteController {
public PageController() {
}
public PageController(ApexPages.StandardController stc) {
}

Controlling Redirect
//Stay on same page
return null;
//New page, no Viewstate
PageReference newPage = new Page.NewPage();
newPage.setRedirect(true);
return newPage;
//New page, retain Viewstate
PageReference newPage = new Page.NewPage();
newPage.setRedirect(false);
return newPage;

Unit Testing Pages
//Set test page
Test.setCurrentPage(Page.VisualforcePage);
//Set test data
Account a = new Account(Name='TestCo');
insert a;
//Set test params
ApexPages.currentPage().getParameters().put('id',a.Id);
//Instatiate Controller
SomeController controller = new SomeController();
//Make assertion
System.assertEquals(controller.AccountId,a.Id)

Visualforce Components
Embedding content across User Interfaces

Visualforce Dashboards
<apex:page controller="retrieveCase"
tabStyle="Case">
<apex:pageBlock>
{!contactName}s Cases
<apex:pageBlockTable value="{!cases}"
var="c">
<apex:column value="{!c.status}"/>
<apex:column value="{!c.subject}"/>
</apex:pageBlockTable>
</apex:pageBlock>
</apex:page>
Custom Controller
Dashboard Widget

Page Overrides
Select Override
Define Override

Templates
<apex:page controller="compositionExample">
<apex:form >
<apex:insert name=”header" />
<br />
<apex:insert name=“body" />
Layout inserts
Define with
Composition
<apex:composition template="myFormComposition
<apex:define name=”header">
<apex:outputLabel value="Enter your favorite m
<apex:inputText id=”title" value="{!mealField}"
</apex:define>
<h2>Page Content</h2>

<apex:component controller="WarehouseAccounts
<apex:attribute name="lat" type="Decimal" descrip
Query" assignTo="{!lat}"/>
<apex:attribute name="long" type="Decimal" desc
Geolocation Query" assignTo="{!lng}"/>
<apex:pageBlock >
Custom Components
Define Attributes
Assign to Apex
public with sharing class WarehouseAccountsCont
public Decimal lat {get; set;}
public Decimal lng {get; set;}
private List<Account> accounts;
public WarehouseAccountsController() {}

Page Embeds
Standard Controller
Embed in Layout
<apex:page StandardController=”Account”
showHeader=“false”
<apex:canvasApp
developerName=“warehouseDev”
applicationName=“procure”

Canvas
Framework for using third party apps within Salesforce

Any Language, Any Platform
• Only has to be accessible from the user’s browser
• Authentication via OAuth or Signed Response
• JavaScript based SDK can be associated with any language
• Within Canvas, the App can make API calls as the current user
• apex:CanvasApp allows embedding via Visualforce
Canvas Anatomy

Non-HTML Visualforce Tutorial
Geolocation Component Tutorial

jQuery Integration
Visualforce with cross-browser DOM and event control

jQuery Projects
DOM Manipulation
Event Control
UI Plugins
Mobile Interfaces




noConflict() + ready
<script>
j$ = jQuery.noConflict();
j$(document).ready(function() {
//initialize our interface
});
</script>
 Keeps jQuery out of the $ function
 Resolves conflicts with existing libs
 Ready event = DOM is Ready

jQuery Functions
j$('#accountDiv').html('New HTML');
 Call Main jQuery function
 Define DOM with CSS selectors
 Perform actions via base jQuery methods or plugins

DOM Control
accountDiv = j$(id*=idname);
accountDiv.hide();
accountDiv.hide.removeClass('bDetailBlock');
accountDiv.hide.children().show();
//make this make sense
 Call common functions
 Manipulate CSS Directly
 Interact with siblings and children
 Partial CSS Selectors

Event Control
j$(".pbHeader")
.click(function() {
j$(".pbSubsection”).toggle();
});
 Add specific event handles bound to CSS selectors
 Handle specific DOM element via this
 Manipulate DOM based on current element, siblings or children

jQuery Plugins
 iCanHaz
 jqPlot
 cometD
 SlickGrid, jqGrid
Moustache compatible client side templates
Free charting library
Flexible and powerful grid widgets
Bayeux compatible Streaming API client

Streaming API Tutorial

LUNCH:
Room 119
To the left, down the stairs

Apex Triggers
Event based programmatic logic

Controlling Flow
trigger LineItemTrigger on Line_Item__c (before insert,
before update) {
//separate before and after
if(Trigger.isBefore) {
//separate events
if(Trigger.isInsert) {
System.debug(„BEFORE INSERT‟);
DelegateClass.performLogic(Trigger.new);
//

Delegates
public class BlacklistFilterDelegate
{
public static Integer FEED_POST = 1;
public static Integer FEED_COMMENT = 2;
public static Integer USER_STATUS = 3;
List<PatternHelper> patterns {set; get;}
Map<Id, PatternHelper> matchedPosts {set; get;}
public BlacklistFilterDelegate()
{
patterns = new List<PatternHelper>();
matchedPosts = new Map<Id, PatternHelper>();
preparePatterns();
}

Static Flags
public with sharing class AccUpdatesControl {
// This class is used to set flag to prevent multiple calls
public static boolean calledOnce = false;
public static boolean ProdUpdateTrigger = false;
}

Chatter Triggers
trigger AddRegexTrigger on Blacklisted_Word__c (before insert, before update) {
for (Blacklisted_Word__c f : trigger.new)
{
if(f.Custom_Expression__c != NULL)
{
f.Word__c = '';
f.Match_Whole_Words_Only__c = false;
f.RegexValue__c = f.Custom_Expression__c;
}
else
f.RegexValue__c =
RegexHelper.toRegex(f.Word__c, f.Match_Whole_Words_Only__c);
}
}

Scheduled Apex
Cron-like functionality to schedule Apex tasks

Schedulable Interface
global with sharing class WarehouseUtil implements Schedulable {
//General constructor
global WarehouseUtil() {}
//Scheduled execute
global void execute(SchedulableContext ctx) {
//Use static method for checking dated invoices
WarehouseUtil.checkForDatedInvoices();
}

Schedulable Interface
System.schedule('testSchedule','0 0 13 * * ?',
new WarehouseUtil());
Via Apex
Via Web UI

Batch Apex
Functionality for Apex to run continuously in the background

Batchable Interface
global with sharing class WarehouseUtil
implements Database.Batchable<sObject> {
//Batch execute interface
global Database.QueryLocator start(Database.BatchableContext BC){
//setup SOQL for scope
}
global void execute(Database.BatchableContext BC,
List<sObject> scope) {
//Execute on current scope
}
global void finish(Database.BatchableContext BC) {
//Finish and clean up context
}

Unit Testing
Test.StartTest();
ID batchprocessid = Database.executeBatch(new WarehouseUtil());
Test.StopTest();

Asynchronous Apex Tutorial
De-duplication Trigger Tutorial

Apex Endpoints
Exposing Apex methods via SOAP and REST

OAuth
Industry standard method of user authentication

Remote
Application
Salesforce
Platform
Sends App Credentials
User logs in,
Token sent to callback
Confirms token
Send access token
Maintain session with
refresh token
OAuth2 Flow

Apex SOAP
global class MyWebService {
webService static Id makeContact(String lastName, Account a) {
Contact c = new Contact(lastName = 'Weissman',
AccountId = a.Id);
insert c;
return c.id;
}
}

Apex REST
@RestResource(urlMapping='/CaseManagement/v1/*')
global with sharing class CaseMgmtService
{
@HttpPost
global static String attachPic(){
RestRequest req = RestContext.request;
RestResponse res = Restcontext.response;
Id caseId = req.requestURI.substring(req.requestURI.lastIndexOf('/')+1);
Blob picture = req.requestBody;
Attachment a = new Attachment (ParentId = caseId,
Body = picture,
ContentType = 'image/

Apex Email
Classes to handle both incoming and outgoing email

Outgoing Email
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
String body = count+' closed records older than 90 days have been deleted';
//Set addresses based on label
mail.setToAddresses(Label.emaillist.split(','));
mail.setSubject ('[Warehouse] Dated Invoices');
mail.setPlainTextBody(body);
//Send the email
Messaging.SendEmailResult [] r =
Messaging.sendEmail(new Messaging.SingleEmailMessage[] {mail});

Incoming Email
global class PageHitsController implements Messaging.InboundEmailHandler {
global Messaging.InboundEmailResult handleInboundEmail(
Messaging.inboundEmail email,
Messaging.InboundEnvelope env)
{
if(email.textAttachments.size() > 0) {
Messaging.InboundEmail.TextAttachment csvDoc =
email.textAttachments[0];
PageHitsController.uploadCSVData(csvDoc.body);
}
Messaging.InboundEmailResult result = new
Messaging.InboundEmailResult();
result.success = true;
return result;
}

Incoming Email
Define Service
Limit Accepts

Custom Endpoint Tutorial

Team Development
Tools for teams and build masters

Metadata API
API to access customizations to the Force.com platform

Migration Tool
Ant based tool for deploying Force.com applications

Continuous Integration
Source
Control
Sandbox
CI Tool
DE
Fail
Notifications
Development Testing

Tooling API
Access, create and edit Force.com application code

Polyglot Framework
PaaS allowing for the deployment of multiple languages

Heroku Integration Tutorial

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The Wrap Up

check inbox ||
http://bit.ly/elevatela13

@forcedotcom
@joshbirk
@metadaddy
#forcedotcom

Join A
Developer User Group
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Developer User Group Leader
Email:
April Nassi
<anassi@salesforce.com>

http://developer.force.com
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elevate-advanced-workshop

simplicity
is the ultimate
form of
sophistication
Da Vinci

Thank You
Joshua Birk
Developer Evangelist
@joshbirk
joshua.birk@salesforce.com
Matthew Reiser
Solution Architect
@Matthew_Reiser
mreiser@salesforce.com

ELEVATE Advanced Workshop

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Editor's Notes