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DEV-501 Apex and Visualforce Controllers (DEV501)

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DEV-501 exam Dumps Source : Apex and Visualforce Controllers (DEV501)

Test Code : DEV-501
Test denomination : Apex and Visualforce Controllers (DEV501)
Vendor denomination : Salesforce
: 239 actual Questions

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Salesforce Apex and Visualforce Controllers

Deep Dive into Debugging Apex and Visualforce Code with novel force.Com Ide | killexams.com actual Questions and Pass4sure dumps

Introduction

This publish is a brief overview of how to debug Apex and Visualforce code in the JetForcer, a novel up to date force.com IDE in keeping with IntelliJ conception platform.

We’ll steal a better contemplate in any respect purchasable points and believe a few hints that execute debugging extra handy and convenient. For this, they are going to construct a simple debugging mystify and check out to fix it.

Let's go!

Step 1: prepare Org information

Execute anonymous code and prepare org data

In quick, their aim is to create a Visualforce web page so that it will parade purchasable accounts and provide an capability to filter them. first of all, fill their org with the vital money owed. For this, flee following code within the Execute anonymous device window or just spend latest bills.

anonymous code:

Map<String, String> acctName2RatingMap = novel Map<String, String> 'Ant Conglomerate' => 'warm', 'Bee collection company' => 'bloodless', 'Beetle Brothers constitution store' => 'scorching', 'Butterfly polish components' => 'bloodless', 'Flea LLC' => 'cold', 'Fly airways' => 'heat', 'Moth Candle business' => 'hot', 'Tick Timepieces' => 'hot', 'Wasp Industrial products' => 'cold', 'Weevil Consultancy' => 'warm' ; listing<Account> newAccts = novel record<Account>(); for(String accName : acctName2RatingMap.keySet()) Account newAcct = novel Account(); newAcct.identify = accName; newAcct.BillingCity = 'Suffragette metropolis'; newAcct.score = acctName2RatingMap.get(accName); newAccts.add(newAcct); for (Account each and every : newAccts) equipment.debug(each and every); insert newAccts; Step 2: Visualforce Controller

subsequent, let’s create a Visualforce controller to debug. it can be in a position to filter accounts listing if obligatory or simply recrudesce run-of-the-mill records without filtration.  

favored classification content:

public class AccountViewerController public Boolean removeCold get; set; public list<Account> effects get; set; public AccountViewerController() removeCold = false; outcomes = [SELECT Id, Name, Owner.Name, Rating, BillingCity, BillingState FROM Account WHERE BillingCity = 'Suffragette City' ORDER BY denomination ASC]; public checklist<Account> getAccountTable() record<Account> accountsToReturn = novel listing<Account>(outcomes); if (Boolean.valueOf(removeCold)) removeColdAccounts(accountsToReturn); return accountsToReturn; public void removeColdAccounts(record<Account> listToReduce) system.debug('doing away with "bloodless" bills'); device.debug(' size before: ' + listToReduce.dimension()); for (Integer i = 0; i < listToReduce.dimension(); i++) Account a = listToReduce.get(i); if (a.ranking.equalsIgnoreCase('cold')) listToReduce.get rid of(i); device.debug('removed bloodless account: ' + a.identify); device.debug(' measurement after: ' + listToReduce.dimension()); public void noOp() Step 3: Visualforce web page

Now they want a Visualforce web page to view and filter their accounts.web page markup:

<apex:web page controller="AccountViewerController"> <apex:form > <apex:outputPanel identification="resultTable"> <apex:pageBlock > <apex:actionstatus identity="repute"> <apex:aspect name="delivery"> <div category="waitingSearchDiv" identity="el_loading" fashion="history-colour: #fbfbfb; peak: one hundred%; opacity:0.65;width:100%;"> <div type="waitingHolder" vogue="good: seventy four.2px; width: 91px;"> <img type="waitingImage" src="/img/loading.gif" title="Please Wait..."/> <span class="waitingDescription">Please Wait...</span> </div> </div> </apex:aspect> </apex:actionstatus> <apex:pageBlockSection title="debts Filter" collapsible="false"> <apex:inputCheckbox cost="!removeCold" label="conceal bloodless money owed"> <apex:actionSupport experience="onchange" action="!noOp" popularity="status" rerender="resultTable"/> </apex:inputCheckbox> </apex:pageBlockSection> <apex:pageBlockSection title="Scheduled Jobs" collapsible="false"> <apex:pageBlockTable value="!accountTable" var="a" identification="thePageBlockTable"> <apex:column fashion="vertical-align:desirable"> <apex:outputField cost="!a.name"/> <apex:side name="header">identify</apex:aspect> </apex:column> <apex:column > <apex:outputField price="!a.BillingCity"/> <apex:aspect name="header">city</apex:side> </apex:column> <apex:column > <apex:outputField price="!a.BillingState"/> <apex:side name="header">State</apex:aspect> </apex:column> <apex:column > <apex:outputField value="!a.ranking"/> <apex:facet name="header">rating</apex:aspect> </apex:column> </apex:pageBlockTable> </apex:pageBlockSection> </apex:pageBlock> </apex:outputPanel> </apex:form> </apex:web page> Step four: Configure trace Flags

subsequent, configure trace flag for their Visualforce controller. It necessary for generation debug logs after controller exercise. For trace flags administration, JetForcer provides the trace Flags tab in the Log supervisor tool window.

Please word that there are few necessities for a hit debugging:

  • Debug log should include STATEMENT_EXECUTE events which used for navigating to sources. (Debug level for Apex log category may still be at the least "Finer")

  • [Optional] in case you wish to explore autochthonous variables, fields or constants with Variables View, then debug log may still contain VARIABLE_ASSIGNMENT hobbies (Debug stage for Apex log class should be at the least "gold standard")

  • [Optional] if you wish to debug Visualforce controllers, then debug log should still include VF_APEX_CALL_START events which used for calculating present supply place. (Debug log for Visualforce log class may still be at the least "best")

  • Step 5: establish an issue

    Our expectations are that their Visualforce page may still be working completely! Let’s be certain.

    As they will see, whatever went wrong and one “bloodless” account is still persisted in the list. Why did this happen? It’s time for debugging!

    Step 6: discover Log with Log manager

    After their activity in the browser, a corresponding debug log has been generated. find it through the spend of the Log tab from the Log supervisor device window.

    This tab is an impressive tool for managing debug logs and offers following elements:

  • Retrieving novel logs from the server by using the Retrieve final Logs motion;

  • making spend of filters to logs table (e.g. filter whole logs through particular Operation);

  • Distinguish between examine/unread/new logs  (e.g. novel logs are proven in bold);

  • beginning a novel debug session or creating novel debug configuration for chosen log appropriate from the Logs tab.

  • Step 7: spend Debug Watches for Exploring tremendous components of Your Code.

    JetForcer gives Debug Watches to a convenient exploring of code expressions values (variables, fields, components calls etc.) in the Variables View.

    Debug Watch is a equipment#debug(Object) system call with a specific sample:

    device.debug('[<watch_name>::<watch_type>]:watches' + JSON.serialize(<expression>))

    we can avoid "list of dimension 10 too huge to monitor" warning by using watches.

    consider free to without delay add novel watch by using "Add to Watches..." aim motion.

    After adding watches bethink to set up adjustments to the org and generate novel debug logs in accordance with novel sources.

    Step eight: Stepping in the course of the Code Execution current (Step moves and Breakpoints).

    JetForcer gives a couple of methods of navigating via code while debugging:

    Step moves: When a debug session is started, the Debug device window becomes energetic and allows for you to accept wield over the code stream execution by using Step movements.

    They can be known as from the flee menu normally toolbar, or by using the actions on the stepping toolbar in the Debug tool window.

    every stepping motion advances the droop context to the next STATEMENT_EXECUTE adventure vicinity, counting on the action you opt for.

  • Breakpoints are source code markers used to intentional suspending vicinity in a code execution move. customarily used for straight away bounce to the desired STATEMENT_EXECUTE sustain through skipping whole frail statistics. For adding or removing a breakpoint, click the left gutter belt at a line where you exigency to toggle a breakpoint.

  • Step 8: Debug the problem

    The issue is that getting rid of "cold" account from the listing would change the positions of the following money owed. It shifts them one belt up.

    So if you gain two consecutive "cold" money owed, the 2nd one could be always skipped with the aid of the filter.

    Step 9: fix the issue

    To repair the vicissitude just decrement the cost of the loop's counter "i", each time doing away with an account from the list.

    public void removeColdAccounts(record<Account> listToReduce) { equipment.debug('getting rid of "bloodless" bills'); system.debug(' measurement earlier than: ' + listToReduce.size()); for (Integer i = 0; i < listToReduce.size(); i++) gadget.debug('[listToReduce-BEFORE::List<Account>]:watches' + JSON.serialize(listToReduce)); Account a = listToReduce.get(i); if (a.ranking.equalsIgnoreCase('bloodless')) listToReduce.eradicate(i); i--; // add fix device.debug('[listToReduce-AFTER::List<Account>]:watches' + JSON.serialize(listToReduce)); system.debug('eliminated gelid account: ' + a.identify); ...

    that's About It!

    here is a very concise overview of some JetForcer debugger capabilities, simply to provide you with a brief start. if you discover it unique, you may are trying out a free 30-day trial version from the respectable site.be certain you supervene @JetForcer on Twitter to be notified about updates, points, novel releases and engaging records concerning the JetForcer plugin.

    have fun with constructing with JetForcer and JetBrains IDEs!

    themes:

    salesforce construction ,salesforce lightning ,salesforce crm ,salesforce path working towards ,salesforce app evolution ,salesforce customization


    JavaScript for Visualforce builders | killexams.com actual Questions and Pass4sure dumps

    however that you could if you heed this information! Introduction

    due to the fact that Lightning accessories burst onto the scene, developers within the Salesforce ecosystem may be forgiven for assuming that Visualforce is now a legacy technology and that each one novel structure may still be carried out in Lightning. To my intellect here's a exiguous too black and white — while it’s probably that Lightning will accept the lion’s share of consideration from Salesforce, and Visualforce is probably going to acquire protection in belt of novel functionality, Visualforce is a age technology it's in spend in hundreds of thousands of purposes whole over so it’s not going away any time soon.

    There’s likewise no purpose to suppose that organizations are going to drop their investment in Visualforce and rebuild whole of their applications in Lightning — I always counsel clients towards this sort of issue until there’s a compelling purpose. in any other case there’s a major investment and the best feasible outcome is that clients don’t word any difference, whereas the extra probably influence is that issues don’t Somewhat work as they did, or in any respect!

    another excuse I believe the understanding is mistaken is that it pre-supposes whole Visualforce developers can seamlessly transition to Lightning with minimal effort. while this might be actual for the likes of me which gain been programming for just about 40 years, it most basically isn’t the case for those that gain self-taught themselves Apex and Visualforce with the aid of structure purposes with the support and wait on of the Salesforce community. lots of the time here's the simplest programming these americans gain done, so relocating to another language isn’t simple — peculiarly JavaScript! lax typing, closures, capabilities as first classification objects and prototypes are absolutely alien ideas in the event you are handiest used to a strongly typed statically compiled language dote Apex.

    That talked about, I’d definitely submit Salesforce developers to birth familiarising themselves with JavaScript, but this is a lot easier when performed in the standard atmosphere of Visualforce, enabling the server to achieve many of the hefty lifting. Taking this approach isn’t a silver bullet although, so here’s some assistance in keeping with my own adventure relocating over.

    make an trouble and study JavaScript

    You don’t should develop into an expert, but if you are attempting to piece things together using snippets from other americans’s code you’ll find this an exercise in frustration. JavaScript is terribly discrete to what you’ve been used to, and figuring out why birthright here code executes automatically and then throws ‘Uncaught ReferenceError: illustration isn't defined’ could steal a long time.

    (feature example()alert('In illustration!');()); instance();

    There are loads of JavaScript resources on the internet, and i’ve heard very august reviews from americans who’ve used Code college to accept begun. My preference is always books and that i discovered demur Oriented JavaScript via Stoyan Stefanov turned into the one which made everything click on for me. Your mileage will almost certainly vary, but it’s really worth spending the time to find the birthright discovering formula and then making spend of it.

    Separate JavaScript from HTML

    Unobtrusive JavaScript mandates separation of your JavaScript code from your presentation markup, which capacity no more attaching event handlers at once to HTML features, reminiscent of:

    <input classification="text" id="firstname" onchange="copyToLastname()" />

    in case you achieve that, a developer that comes after you has to contemplate via your entire markup as well as your JavaScript to determine the belt a duty could be used. in its place, attaching the handler to the component programmatically helps to execute lucid things, albeit on the saturate of an extra line of code — your future colleagues will thanks for taking the time!

    doc.getElementById('firstname').onchange = copyToLastName;

    (as an aside, here is an instance of how features are first classification objects in JavaScript — I’ve described copyToLastName in different places and that i can readily assign it as the onchange feature for the firstname aspect).

    avoid Visualforce merge syntax in JavaScript

    It’s very tempting to achieve something dote here to plug a value from a Visualforce controller without delay into your JavaScript:

    var firstname=’!Contact.FirstName’;

    which appears fairly innocuous. youngsters, what this apparently innocent line of code does is tightly couple your JavaScript to the Visualforce rendering engine — if the JavaScript isn’t processed via the rending engine, the merge syntax might be taken as a string literal and anywhere you utilize the firstname property will betray !Contact.FirstName in belt of the genuine first denomination of the contact.

    Why is that this a tremendous deal I hear you ask? To minimise the weight time of a page, you customarily are looking to stream the JavaScript into an static useful resource so that it can be covered as an exterior file as soon as structure is comprehensive. This allows the browser to cache the external file, which means that the JavaScript doesn’t exigency to be delivered each time a user accesses the web page. exterior files are protected after the Visualforce web page is delivered to the browser, which capability they are simplest processed through the browser, no longer the Visualforce rendering engine.

    As a corollary to this, I whole the time submit setting up JavaScript in it’s personal Visualforce component. This continues it properly become independent from the web page markup, while nevertheless providing it as portion of the page to execute debugging simpler. when you are delighted that every exiguous thing is working as expected (yeah right!) it’s easy to migrate this to a static resource.

    prevent nameless capabilities

    I’ve spoke of this in so lots of my articles and presentations during the past, but it whole the time bears repeating — use nameless capabilities as sparingly as which you could. For these novel to JavaScript (and that i’m expecting just a few of you to be reading this), birthright here’s an anonymous function:

    doRequest(feature(response)console.log('got response ' + response););

    Which doesn’t seem too unsafe on it’s personal. delivery adding extra industry logic and issues birthright away recede unhealthy:

    doRequest(characteristic(response)console.log('got response ' + response);if (response=='adequate') doSecondRequest(response, function(nextResponse)console.log('acquired response ' + nextResponse););else handleError(response, characteristic(okStatus) console.log('dealt with oversight k');),characteristic(errorStatus) console.log('Unable to deal with error'); ););

    in the actual world, with extra enterprise logic than primary console.log statements, in the event you accept an exception in an anonymous feature nested inner a number of different anonymous functions it’s relatively lots unimaginable to design out what really happened. i know this as a result of one of my early JavaScript ventures, Ticket to trip,

    i finished up in precisely this condition. I’d pulled some facts again from the server, dealt with the response in an nameless duty after which carried out a bunch of asynchronous characteristic to store offline after which question back, coping with whole responses with additional nameless services. a week or so earlier than my parch flee i used to be frantically rewriting every thing!

    Don’t pollute the international namespace

    in case you declare variables in JavaScript dote the following, these will whole be brought to the world namespace:

    var x=1;var y=2;var length=three;var count number=7;

    The international namespace is the window object, so these declarations simply are:

    window.x=1;window.y=2;window.length=three;window.count=7

    The international namespace, window, is shared between whole JavaScript to your page. consequently if in case you gain encompass a different JavaScript file that broadcasts:

    var count number='here is the counter';

    each declarations assign values to window.count and one JavaScript file goes to be upset when it acts on this and finds it’s unexpectedly develop into the inaccurate category.

    as a substitute, create objects certain to your JavaScript and fence the variables inside these objects. You nonetheless stand a haphazard of colliding with an demur from yet another JavaScript file, however a practical naming convention may still mitigate this:

    var bgAppObj=x : 1,y : 2,size : 3,count : 7;

    using these is so simple as specifying the thing identify in advance of the variable:

    console.log('length = ' + bgAppObj.size);bgAppObj.count number+=three;

    hence however another JavaScript file specifies a count variable within the international namespace, your variables are properly remoted in a container and unaffected.

    That’s whole there's to it?

    trust that and you’ll accept as accurate with anything else. The JavaScript language is evolving — ES6 support is steadily being brought to browsers, ES7 is finalised, frameworks mount faster than condominium prices and Fall faster than politicians reputations, and JavaScript on the server by the spend of Node goes from electricity to energy. Getting whole started with JavaScript potential you're opening yourself up to a lot more studying, however it’s the longer term and it’s most effectual to accept in as early as that you could.

    I’m more advantageous wide-spread within the Salesforce neighborhood as Bob Buzzard — Umpteen Certifications, including Technical Architect, 5 x MVP and CTO of BrightGen, a Platinum Cloud Alliance companion within the uk who are hiring.

    that you may locate my (usually) greater technical recommendations at the Bob Buzzard blog


    Salesforce to Launch "UI as a service"; offers Glimpse Into LinkedIn Platform | killexams.com actual Questions and Pass4sure dumps

    Salesforce.com has announced that they can be launching Visualforce, which it describes as “consumer-Interface-as-a-provider,” as a portion of the enterprise’s “summer ‘08” unlock. I spoke with Ariel Kelman, senior director of platform product advertising and marketing at Salesforce previous these days to accept the skinny on this buzzword laden news, and while industry software can likewise not be their MO birthright here at Mashable, Visualforce is whatever thing to pay attention to, as it’s probably a technology that can be emulated with the aid of platforms whole over.

    consumer Interface as a service

    “consumer Interface as a carrier” (UIaaS) is well-nigh what the title implies: versus structure a UI from scratch, Visualforce permits developers to execute the most of pre-constructed components to create their UI inside Salesforce functions. in case you're not widespread with Salesforce, their platform, AppExchange, is dote the fb Platform for industry software, however with extra clients, and with some serious cash concerned.

    For an easy illustration of UIaaS in action, if you desired to consist of on your enterprise’s implementation of Salesforce a Google Map displaying the belt your consumers can be found, that could be a pre-developed component that may well be added to your account by means of effectively adding a single tag. For a greater complicated illustration, Kelman validated a very custom-made version of Salesforce where Dolby (the sound enterprise) is the spend of Salesforce to music which sound platform numerous theatres across the nation are the usage of, with a graphical UI absolutely distinctive from the typical Salesforce.com. in line with Salesforce, UIaaS add-ons can encompass:

    * Pages – this potential makes it feasible for the design definition of an application’s user interface.* components – this gives the means to create novel functions that immediately meet the issue and reckon of Salesforce applications or with ease customize and prolong the Salesforce person interface to specific consumer and user requirements.* Apex Controllers - The controller allows for shoppers to build any user interface behavior.* Static components - offers the skill to effortlessly create, reference, and manage the property used to create UIs—including pictures, vogue sheets, JavaScript libraries, and different browser add-ons.* Inline page and Controller enhancing - In Visualforce evolution mode, purchasers can edit Visualforce pages and Apex controllers without delay from the runtime view of any page.

    element Developer Ecosystem

    in the meantime, there’s already Somewhat of an ecosystem in the back of Visualforce; developers can construct add-ons and both sell them to other clients or present them as open source through Salesforce’s frequent AppExchange. thus far, Salesforce claims greater than four,000 builders and 11,000 client interfaces in the preview application for Visualforce.

    LinkedIn Platform Preview

    The Visualforce demo likewise gave Kelman a haphazard to exhibit me what Salesforce is as much as with LinkedIn and its upcoming developer platform, which is currently handiest accessible to opt for partners. The implementation I noticed allows for Salesforce clients to contemplate at a particular consumer (for example, FedEx) and notice what number of degrees away they are from them a certain contact within that organization. hence, if I’m seeking to accept in touch with a VP of industry construction at FedEx, perhaps i will discern that an Account manager I’m involved with is barely two degrees away from that key contact. That’s some pretty effectual stuff in the event you judge in regards to the huge person move-over that doubtless exists between Salesforce and LinkedIn users - it just about turns Salesforce into a CRM app coupled with a FoaF-trend social network.

    Salesforce Is setting The commonplace For "severe" internet structures

    Is it simply me, or achieve the announcements they hear from Salesforce issue to simply execute much more sustain than loads of the tie-u.s.we hear about on the customer aspect of the internet? remaining month, the company announced a contend with Google to launch Salesforce for Google Apps, and from what I've considered in my short tour of Visualforce, we're about to contemplate lots of a august understanding applications being cranked out by builders within the Salesforce group. It certainly adds extra credence to the conception that fb apps are just for enjoyable.


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    Apex and Visualforce Controllers (DEV501)

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    Deep Dive into Debugging Apex and Visualforce Code with novel Force.Com Ide | killexams.com actual questions and Pass4sure dumps

    Introduction

    This post is a short overview of how to debug Apex and Visualforce code in the JetForcer, a novel modern Force.com IDE based on IntelliJ understanding platform.

    We’ll steal a closer contemplate at whole available features and reckon a few tricks that execute debugging more easy and handy. For this, we'll construct a simple debugging mystify and try to fix it.

    Let's go!

    Step 1: Prepare Org Data

    Execute anonymous code and prepare org data

    In brief, their point is to create a Visualforce page that will parade available accounts and provide an capacity to filter them. First of all, fill their org with the necessary accounts. For this, flee following code in the Execute Anonymous tool window or just spend existing accounts.

    Anonymous code:

    Map<String, String> acctName2RatingMap = novel Map<String, String>{ 'Ant Conglomerate' => 'Warm', 'Bee Collection Agency' => 'Cold', 'Beetle Brothers corpse Shop' => 'Hot', 'Butterfly Beauty Supplies' => 'Cold', 'Flea LLC' => 'Cold', 'Fly Airlines' => 'Warm', 'Moth Candle Company' => 'Hot', 'Tick Timepieces' => 'Hot', 'Wasp Industrial Products' => 'Cold', 'Weevil Consultancy' => 'Warm' }; List<Account> newAccts = novel List<Account>(); for(String accName : acctName2RatingMap.keySet()) { Account newAcct = novel Account(); newAcct.Name = accName; newAcct.BillingCity = 'Suffragette City'; newAcct.Rating = acctName2RatingMap.get(accName); newAccts.add(newAcct); } for (Account each : newAccts) System.debug(each); insert newAccts; Step 2: Visualforce Controller

    Next, let’s create a Visualforce controller to debug. It should be able to filter accounts list if needed or just recrudesce original data without filtration.  

    Desired class content:

    public class AccountViewerController { public Boolean removeCold {get; set;} public List<Account> results {get; set;} public AccountViewerController() { removeCold = false; results = [SELECT Id, Name, Owner.Name, Rating, BillingCity, BillingState FROM Account WHERE BillingCity = 'Suffragette City' ORDER BY denomination ASC]; } public List<Account> getAccountTable() { List<Account> accountsToReturn = novel List<Account>(results); if (Boolean.valueOf(removeCold)) { removeColdAccounts(accountsToReturn); } return accountsToReturn; } public void removeColdAccounts(List<Account> listToReduce) { System.debug('Removing "cold" accounts'); System.debug(' size before: ' + listToReduce.size()); for (Integer i = 0; i < listToReduce.size(); i++) { Account a = listToReduce.get(i); if (a.Rating.equalsIgnoreCase('Cold')) { listToReduce.remove(i); System.debug('removed gelid account: ' + a.Name); } } System.debug(' size after: ' + listToReduce.size()); } public void noOp() { } } Step 3: Visualforce page

    Now they exigency a Visualforce page to view and filter their accounts.Page markup:

    <apex:page controller="AccountViewerController"> <apex:form > <apex:outputPanel id="resultTable"> <apex:pageBlock > <apex:actionstatus id="status"> <apex:facet name="start"> <div class="waitingSearchDiv" id="el_loading" style="background-color: #fbfbfb; height: 100%; opacity:0.65;width:100%;"> <div class="waitingHolder" style="top: 74.2px; width: 91px;"> <img class="waitingImage" src="/img/loading.gif" title="Please Wait..."/> <span class="waitingDescription">Please Wait...</span> </div> </div> </apex:facet> </apex:actionstatus> <apex:pageBlockSection title="Accounts Filter" collapsible="false"> <apex:inputCheckbox value="{!removeCold}" label="Hide gelid Accounts"> <apex:actionSupport event="onchange" action="{!noOp}" status="status" rerender="resultTable"/> </apex:inputCheckbox> </apex:pageBlockSection> <apex:pageBlockSection title="Scheduled Jobs" collapsible="false"> <apex:pageBlockTable value="{!accountTable}" var="a" id="thePageBlockTable"> <apex:column style="vertical-align:top"> <apex:outputField value="{!a.name}"/> <apex:facet name="header">Name</apex:facet> </apex:column> <apex:column > <apex:outputField value="{!a.BillingCity}"/> <apex:facet name="header">City</apex:facet> </apex:column> <apex:column > <apex:outputField value="{!a.BillingState}"/> <apex:facet name="header">State</apex:facet> </apex:column> <apex:column > <apex:outputField value="{!a.Rating}"/> <apex:facet name="header">Rating</apex:facet> </apex:column> </apex:pageBlockTable> </apex:pageBlockSection> </apex:pageBlock> </apex:outputPanel> </apex:form> </apex:page> Step 4: Configure Trace Flags

    Next, configure trace flag for their Visualforce controller. It necessary for generation debug logs after controller activity. For trace flags management, JetForcer provides the Trace Flags tab in the Log Manager tool window.

    Please note that there are few essentials for successful debugging:

  • Debug log should contain STATEMENT_EXECUTE events which used for navigating to sources. (Debug level for Apex log category should be at least "Finer")

  • [Optional] If you want to explore local variables, fields or constants with Variables View, then debug log should contain VARIABLE_ASSIGNMENT events (Debug level for Apex log category should be at least "Finest")

  • [Optional] If you want to debug Visualforce controllers, then debug log should contain VF_APEX_CALL_START events which used for calculating current source position. (Debug log for Visualforce log category should be at least "Fine")

  • Step 5: Identify a Problem

    Our expectations are that their Visualforce page should be working perfectly! Let’s execute sure.

    As they can see, something went wrong and one “Cold” account is still persisted in the list. Why did this happen? It’s time for debugging!

    Step 6: Find Log with Log Manager

    After their activity in the browser, a corresponding debug log has been generated. Find it by using the Log tab from the Log Manager tool window.

    This tab is a powerful tool for managing debug logs and provides following features:

  • Retrieving novel logs from the server by using the Retrieve last Logs action;

  • Applying filters to logs table (e.g. filter whole logs by specific Operation);

  • Distinguish between read/unread/new logs  (e.g. novel logs are shown in bold);

  • Starting a novel debug session or creating novel debug configuration for selected log birthright from the Logs tab.

  • Step 7: spend Debug Watches for Exploring Significant Parts of Your Code.

    JetForcer provides Debug Watches to a handy exploring of code expressions values (variables, fields, system calls etc.) in the Variables View.

    Debug Watch is a System#debug(Object) system call with a specific pattern:

    System.debug('[<watch_name>::<watch_type>]:watches' + JSON.serialize(<expression>))

    We can avoid "List of size 10 too large to display" warning by using watches.

    Feel free to quickly add novel watch by using "Add to Watches..." aim action.

    After adding watches you should deploy changes to the org and generate novel debug logs according to novel sources.

    Step 8: Stepping Through the Code Execution current (Step Actions and Breakpoints).

    JetForcer provides several methods of navigating through code while debugging:

    Step Actions: When a debug session is started, the Debug tool window becomes lively and enables you to accept control over the code current execution by using Step Actions.

    They can be called from the flee menu in the main toolbar, or by using the actions on the stepping toolbar in the Debug tool window.

    Each stepping action advances the suspend context to the next STATEMENT_EXECUTE event location, depending on the action you choose.

  • Breakpoints are source code markers used to intentional suspending belt in a code execution flow. Typically used for quickly jump to the desired STATEMENT_EXECUTE event by skipping whole previous data. For adding or removing a breakpoint, click the left gutter belt at a line where you want to toggle a breakpoint.

  • Step 8: Debug the Problem

    The problem is that removing "Cold" account from the list would change the positions of the subsequent accounts. It shifts them one position up.

    So if you gain two consecutive "Cold" accounts, the second one would be always skipped by the filter.

    Step 9: Fix the Problem

    To fix the problem just decrement the value of the loop's counter "i", each time removing an account from the list.

    public void removeColdAccounts(List<Account> listToReduce) { System.debug('Removing "cold" accounts'); System.debug(' size before: ' + listToReduce.size()); for (Integer i = 0; i < listToReduce.size(); i++) { System.debug('[listToReduce-BEFORE::List<Account>]:watches' + JSON.serialize(listToReduce)); Account a = listToReduce.get(i); if (a.Rating.equalsIgnoreCase('Cold')) { listToReduce.remove(i); i--; // add fix System.debug('[listToReduce-AFTER::List<Account>]:watches' + JSON.serialize(listToReduce)); System.debug('removed gelid account: ' + a.Name); } } ...

    That's About It!

    Here is a very concise overview of some JetForcer debugger capabilities, just to give you a quick start. If you find it interesting, you may try out a free 30-day trial version from the official website.Make sure you supervene @JetForcer on Twitter to be notified about updates, features, novel releases and spellbinding facts about the JetForcer plugin.

    Enjoy developing with JetForcer and JetBrains IDEs!

    Topics:

    salesforce evolution ,salesforce lightning ,salesforce crm ,salesforce course training ,salesforce app evolution ,salesforce customization


    JavaScript for Visualforce Developers | killexams.com actual questions and Pass4sure dumps

    But you can if you heed this advice! Introduction

    Since Lightning Components burst onto the scene, developers in the Salesforce ecosystem could be forgiven for assuming that Visualforce is now a legacy technology and that whole novel evolution should be carried out in Lightning. To my intellect this is a exiguous too black and white — while it’s likely that Lightning will accept the lion’s share of attention from Salesforce, and Visualforce is likely to receive maintenance rather than novel functionality, Visualforce is a age technology that is in spend in millions of applications around the world so it’s not going away any time soon.

    There’s likewise no judgement to suppose that companies are going to drop their investment in Visualforce and rebuild whole of their applications in Lightning — I always counsel customers against this kindly of thing unless there’s a compelling reason. Otherwise there’s a significant investment and the best feasible outcome is that users don’t notice any difference, while the more likely outcome is that things don’t quite work as they did, or at all!

    Another judgement I judge the assumption is flawed is that it pre-supposes whole Visualforce developers can seamlessly transition to Lightning with minimal effort. While this might be accurate for the likes of me that gain been programming for nearly 40 years, it most definitely isn’t the case for those that gain self-taught themselves Apex and Visualforce by structure applications with the wait on and support of the Salesforce community. A lot of the time this is the only programming these people gain done, so poignant to another language isn’t straightforward — especially JavaScript! lax typing, closures, functions as first class objects and prototypes are completely alien concepts when you are only used to a strongly typed statically compiled language dote Apex.

    That said, I’d certainly counsel Salesforce developers to start familiarising themselves with JavaScript, but this is much easier when done in the chummy surroundings of Visualforce, allowing the server to achieve most of the hefty lifting. Taking this approach isn’t a silver bullet though, so here’s some advice based on my own sustain poignant over.

    Take some time and learn JavaScript

    You don’t exigency to become an expert, but if you try to piece things together using snippets from other people’s code you’ll find this an exercise in frustration. JavaScript is very different to what you’ve been used to, and figuring out why the following code executes immediately and then throws ‘Uncaught ReferenceError: case is not defined’ could steal a while.

    (function example(){alert('In example!');}()); example();

    There are masses of JavaScript resources on the web, and I’ve heard very august reports from people who’ve used Code School to accept started. My preference is always books and I create demur Oriented JavaScript by Stoyan Stefanov was the one that made everything click for me. Your mileage will almost certainly vary, but it’s definitely worth spending the time to find the birthright learning system and then applying it.

    Separate JavaScript from HTML

    Unobtrusive JavaScript mandates separation of your JavaScript code from your presentation markup, which means no more attaching event handlers directly to HTML elements, such as:

    <input type="text" id="firstname" onchange="copyToLastname()" />

    If you achieve this, a developer that comes after you has to search through whole of your markup as well as your JavaScript to design out where a duty might be used. Instead, attaching the handler to the component programmatically helps to clarify things, albeit at the cost of an extra line of code — your future colleagues will thank you for taking the time!

    document.getElementById('firstname').onchange = copyToLastName;

    (as an aside, this is an case of how functions are first class objects in JavaScript — I’ve defined copyToLastName elsewhere and I can simply assign it as the onchange duty for the firstname element).

    Avoid Visualforce merge syntax in JavaScript

    It’s very tempting to achieve something dote the following to plug a value from a Visualforce controller directly into your JavaScript:

    var firstname=’{!Contact.FirstName}’;

    which seems pretty innocuous. However, what this seemingly innocent line of code does is tightly couple your JavaScript to the Visualforce rendering engine — if the JavaScript isn’t processed by the rending engine, the merge syntax will be taken as a string literal and anywhere you spend the firstname property will parade {!Contact.FirstName} rather than the actual first denomination of the contact.

    Why is this a tremendous deal I hear you ask? To minimise the load time of a page, you typically want to mosey the JavaScript into an static resource so that it can be included as an external file once evolution is complete. This allows the browser to cache the external file, significance that the JavaScript doesn’t gain to be delivered each time a user accesses the page. External files are included after the Visualforce page is delivered to the browser, which means they are only processed by the browser, not the Visualforce rendering engine.

    As a corollary to this, I always counsel developing JavaScript in it’s own Visualforce component. This keeps it nicely separate from the page markup, while still delivering it as portion of the page to execute debugging easier. Once you are delighted that everything is working as expected (yeah right!) it’s straightforward to migrate this to a static resource.

    Avoid anonymous functions

    I’ve said this in so many of my articles and presentations in the past, but it always bears repeating — use anonymous functions as sparingly as you can. For those novel to JavaScript (and I’m expecting a few of you to be reading this), here’s an anonymous function:

    doRequest(function(response){console.log('Got response ' + response);});

    Which doesn’t contemplate too obnoxious on it’s own. Start adding more industry logic and things quickly recede bad:

    doRequest(function(response){console.log('Got response ' + response);if (response=='OK') {doSecondRequest(response, function(nextResponse){console.log('Got response ' + nextResponse);});}else {handleError(response, function(okStatus) {console.log('Handled oversight okay');}),function(errorStatus) {console.log('Unable to wield error');} );}});

    In the actual world, with more industry logic than simple console.log statements, when you accept an exception in an anonymous duty nested inside several other anonymous functions it’s pretty much impossible to design out what actually happened. I know this because one of my early JavaScript ventures, Ticket to Ride,

    I ended up in exactly this situation. I’d pulled some data back from the server, handled the response in an anonymous duty and then carried out a bunch of asynchronous duty to store offline and then query back, handling whole responses with additional anonymous functions. A week or so before my parch flee I was frantically rewriting everything!

    Don’t pollute the global namespace

    If you declare variables in JavaScript dote the following, these will whole be added to the global namespace:

    var x=1;var y=2;var length=3;var count=7;

    The global namespace is the window object, so these declarations effectively are:

    window.x=1;window.y=2;window.length=3;window.count=7

    The global namespace, window, is shared between whole JavaScript in your page. Thus if you gain involve another JavaScript file that declares:

    var count='This is the counter';

    Both declarations assign values to window.count and one JavaScript file is going to be disappointed when it acts on this and finds it’s suddenly become the wrong type.

    Instead, create objects specific to your JavaScript and fence the variables inside these objects. You still stand a haphazard of colliding with an demur from another JavaScript file, but a sensible naming convention should mitigate this:

    var bgAppObj={x : 1,y : 2,length : 3,count : 7};

    Using these is as simple as specifying the demur denomination prior to the variable:

    console.log('Length = ' + bgAppObj.length);bgAppObj.count+=3;

    Thus even if another JavaScript file specifies a count variable in the global namespace, your variables are nicely isolated in a container and unaffected.

    That’s whole there is to it?

    Believe that and you’ll believe anything. The JavaScript language is evolving — ES6 support is gradually being added to browsers, ES7 is finalised, frameworks mount faster than house prices and Fall faster than politicians reputations, and JavaScript on the server via Node goes from strength to strength. Getting started with JavaScript means you are opening yourself up to a load more learning, but it’s the future and it’s best to accept in as early as you can.

    I’m better known in the Salesforce community as Bob Buzzard — Umpteen Certifications, including Technical Architect, 5 x MVP and CTO of BrightGen, a Platinum Cloud Alliance partner in the United Kingdom who are hiring.

    You can find my (usually) more technical thoughts at the Bob Buzzard Blog


    Salesforce to Launch "UI as a Service"; Offers Glimpse Into LinkedIn Platform | killexams.com actual questions and Pass4sure dumps

    Salesforce.com has announced that they will be launching Visualforce, which it describes as “User-Interface-as-a-Service,” as portion of the company’s “Summer ‘08” release. I spoke with Ariel Kelman, senior director of platform product marketing at Salesforce earlier today to accept the skinny on this buzzword laden news, and while industry software may not be their MO here at Mashable, Visualforce is something to pay attention to, as it’s potentially a technology that could be emulated by platforms far and wide.

    User Interface as a Service

    “User Interface as a Service” (UIaaS) is essentially what the title implies: versus structure a UI from scratch, Visualforce allows developers to utilize pre-built components to create their UI within Salesforce applications. In case you're not chummy with Salesforce, their platform, AppExchange, is dote the Facebook Platform for industry software, but with more users, and with some serious money involved.

    For a simple case of UIaaS in action, if you wanted to involve in your company’s implementation of Salesforce a Google Map showing where your customers are located, that would be a pre-built component that could be added to your account by simply adding a single tag. For a more knotty example, Kelman demonstrated a completely customized version of Salesforce where Dolby (the sound company) is using Salesforce to track which sound platform various theatres around the country are using, with a graphical UI totally different from the standard Salesforce.com. According to Salesforce, UIaaS Components can consist of:

    * Pages – this capability enables the design definition of an application’s user interface.* Components – this provides the capacity to create novel applications that automatically match the contemplate and feel of Salesforce applications or easily customize and extend the Salesforce user interface to specific customer and user requirements.* Apex Controllers - The controller enables customers to build any user interface behavior.* Static Resources - Provides the capability to easily create, reference, and manage the assets used to create UIs—including images, style sheets, JavaScript libraries, and other browser components.* Inline Page and Controller Editing - In Visualforce evolution mode, customers can edit Visualforce pages and Apex controllers directly from the runtime view of any page.

    Component Developer Ecosystem

    Meanwhile, there’s already a bit of an ecosystem behind Visualforce; developers can build components and either sell them to other users or tender them as open source through Salesforce’s Popular AppExchange. So far, Salesforce claims more than 4,000 developers and 11,000 customer interfaces in the preview program for Visualforce.

    LinkedIn Platform Preview

    The Visualforce demo likewise gave Kelman an opportunity to parade me what Salesforce is up to with LinkedIn and its upcoming developer platform, which is currently only available to select partners. The implementation I saw allows Salesforce users to contemplate at a specific customer (for example, FedEx) and discern how many degrees away they are from them a certain contact within that organization. Hence, if I’m looking to accept in touch with a VP of industry evolution at FedEx, perhaps I can discern that an Account Manager I’m in contact with is only two degrees away from that key contact. That’s some pretty powerful stuff when you judge about the huge user cross-over that likely exists between Salesforce and LinkedIn users - it essentially turns Salesforce into a CRM app coupled with a FoaF-style social network.

    Salesforce Is Setting The Standard For "Serious" Web Platforms

    Is it just me, or achieve the announcements they hear from Salesforce seem to just execute a lot more sense than a lot of the tie-ups they hear about on the consumer side of the Web? last month, the company announced a deal with Google to launch Salesforce for Google Apps, and from what I've seen in my brief tour of Visualforce, we're about to discern a lot of really useful applications being cranked out by developers in the Salesforce community. It certainly adds more credence to the theory that Facebook apps are just for fun.



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    References :


    Dropmark : http://killexams.dropmark.com/367904/11775406
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