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DEV-501 Apex and Visualforce Controllers (DEV501)

Study guide Prepared by Killexams.com Salesforce Dumps Experts


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

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

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Salesforce Apex and Visualforce Controllers

Deep Dive into Debugging Apex and Visualforce Code with current 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 current up to date force.com IDE in keeping with IntelliJ conception platform.

We’ll recall a better sight in any respect purchasable points and believe a few hints that gain 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 display purchasable accounts and provide an capability to filter them. first of all, fill their org with the vital money owed. For this, quicken following code within the Execute anonymous device window or just consume latest bills.

anonymous code:

Map<String, String> acctName2RatingMap = current Map<String, String> 'Ant Conglomerate' => 'warm', 'Bee collection company' => 'bloodless', 'Beetle Brothers physique 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 = current record<Account>(); for(String accName : acctName2RatingMap.keySet()) Account newAcct = current 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 live in a position to filter accounts listing if obligatory or simply revert gardenvariety 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 name ASC]; public checklist<Account> getAccountTable() record<Account> accountsToReturn = current 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 vestige Flags

subsequent, configure vestige flag for their Visualforce controller. It necessary for generation debug logs after controller exercise. For vestige flags administration, JetForcer provides the vestige Flags tab in the Log supervisor appliance 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 flush for Apex log category may still live at the least "Finer")

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

  • Step 5: establish an issue

    Our expectations are that their Visualforce page may still live working completely! Let’s live 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 consume of the Log tab from the Log supervisor device window.

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

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

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

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

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

  • Step 7: consume Debug Watches for Exploring gigantic 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 summon 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 detain add current watch by using "Add to Watches..." aim motion.

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

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

    JetForcer gives a pair 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 snare handle over the code stream execution by using Step movements.

    They can live known as from the quicken menu normally toolbar, or by using the actions on the stepping toolbar in the Debug appliance 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 experience through skipping utter extinct statistics. For adding or removing a breakpoint, click the left gutter belt at a line where you need 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 occupy two consecutive "cold" money owed, the 2nd one could live always skipped with the aid of the filter.

    Step 9: fix the issue

    To repair the difficulty 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 frosty 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 crucible version from the respectable site.be unavoidable you succeed @JetForcer on Twitter to live notified about updates, points, current 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 development ,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 live forgiven for assuming that Visualforce is now a legacy technology and that each one current building may still live carried out in Lightning. To my intellect here's a diminutive too black and white — while it’s probably that Lightning will snare the lion’s share of consideration from Salesforce, and Visualforce is probably going to acquire protection in belt of current functionality, Visualforce is a mature technology it's in consume in hundreds of thousands of purposes utter 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 utter 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 practicable outcome is that clients don’t word any difference, whereas the extra probably influence is that issues don’t by a long shot labor as they did, or in any respect!

    another excuse I believe the idea is mistaken is that it pre-supposes utter Visualforce developers can seamlessly transition to Lightning with minimal effort. while this might live actual for the likes of me which occupy been programming for just about 40 years, it most basically isn’t the case for those that occupy self-taught themselves Apex and Visualforce with the aid of building purposes with the advocate and attend of the Salesforce community. lots of the time here's the simplest programming these americans occupy 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 relish Apex.

    That talked about, I’d definitely propound Salesforce developers to birth familiarising themselves with JavaScript, but this is a lot easier when performed in the touchstone atmosphere of Visualforce, enabling the server to accomplish 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 exertion 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 divide to what you’ve been used to, and figuring out why right here code executes automatically and then throws ‘Uncaught ReferenceError: illustration isn't defined’ could recall a long time.

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

    There are loads of JavaScript resources on the internet, and i’ve heard very gracious reviews from americans who’ve used Code college to snare begun. My preference is always books and that i discovered protest 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 right discovering formula and then making consume of it.

    Separate JavaScript from HTML

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

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

    in case you accomplish that, a developer that comes after you has to sight via your entire markup as well as your JavaScript to determine the belt a office could live used. in its place, attaching the handler to the constituent programmatically helps to gain pellucid things, albeit on the impregnate 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 apportion it as the onchange feature for the firstname aspect).

    avoid Visualforce merge syntax in JavaScript

    It’s very tempting to accomplish something relish here to plug a value from a Visualforce controller without detain into your JavaScript:

    var firstname=’!Contact.FirstName’;

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

    Why is that this a gigantic 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 live covered as an exterior file as soon as building is comprehensive. This allows the browser to cache the external file, which means that the JavaScript doesn’t need to live 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 utter the time propound 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 fraction of the page to gain debugging simpler. when you are pleased that every diminutive thing is working as expected (yeah right!) it’s light 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 utter the time bears repeating — use nameless capabilities as sparingly as which you could. For these current to JavaScript (and that i’m expecting just a few of you to live reading this), right here’s an anonymous function:

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

    Which doesn’t look too hazardous on it’s personal. delivery adding extra industry logic and issues right away retrograde 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 error 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 snare an exception in an anonymous feature nested inner a number of different anonymous functions it’s relatively lots unimaginable to motif 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 office after which carried out a bunch of asynchronous characteristic to store offline after which question back, coping with utter responses with additional nameless services. a week or so earlier than my desiccate quicken i used to live frantically rewriting every thing!

    Don’t pollute the international namespace

    in case you declare variables in JavaScript relish the following, these will utter live brought to the world namespace:

    var x=1;var y=2;var length=three;var signify 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 utter JavaScript to your page. consequently if in case you occupy encompass a different JavaScript file that broadcasts:

    var signify number='here is the counter';

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

    as a substitute, create objects unavoidable to your JavaScript and cape the variables inside these objects. You nonetheless stand a desultory of colliding with an protest 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 foster of the variable:

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

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

    That’s utter there's to it?

    trust that and you’ll accept as upright with anything else. The JavaScript language is evolving — ES6 advocate is steadily being brought to browsers, ES7 is finalised, frameworks climb faster than condominium prices and descend faster than politicians reputations, and JavaScript on the server by the consume of Node goes from electricity to energy. Getting utter started with JavaScript potential you're opening yourself up to a lot more studying, however it’s the longer term and it’s most efficient to snare 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 live launching Visualforce, which it describes as “consumer-Interface-as-a-provider,” as a fraction 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 snare the skinny on this buzzword laden news, and while industry software can likewise not live their MO right here at Mashable, Visualforce is whatever thing to pay attention to, as it’s probably a technology that can live emulated with the aid of platforms utter over.

    consumer Interface as a service

    “consumer Interface as a carrier” (UIaaS) is well-nigh what the title implies: versus building a UI from scratch, Visualforce permits developers to gain 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 relish the fb Platform for industry software, however with extra clients, and with some earnest cash concerned.

    For an light 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 live found, that could live a pre-developed component that may well live added to your account by means of effectively adding a solitary tag. For a greater complicated illustration, Kelman validated a very custom-made version of Salesforce where Dolby (the sound enterprise) is the consume 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 practicable for the design definition of an application’s user interface.* components – this gives the means to create current functions that immediately proper the issue and account 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, mode sheets, JavaScript libraries, and different browser add-ons.* Inline page and Controller enhancing - In Visualforce development mode, purchasers can edit Visualforce pages and Apex controllers without detain from the runtime view of any page.

    element Developer Ecosystem

    in the meantime, there’s already by a long shot 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 desultory 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 sight at a particular consumer (for example, FedEx) and notice what number of degrees away they are from them a unavoidable contact within that organization. hence, if I’m seeking to snare in touch with a VP of industry construction at FedEx, perhaps i will notice that an Account manager I’m involved with is barely two degrees away from that key contact. That’s some pretty efficient stuff in the event you arbitrator 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 companionable network.

    Salesforce Is setting The commonplace For "severe" internet structures

    Is it simply me, or accomplish the announcements they hear from Salesforce issue to simply gain much more experience 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 sight lots of a gracious idea 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 current 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 current modern Force.com IDE based on IntelliJ idea platform.

    We’ll recall a closer sight at utter available features and account a few tricks that gain debugging more light 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 train is to create a Visualforce page that will display available accounts and provide an competence to filter them. First of all, fill their org with the necessary accounts. For this, quicken following code in the Execute Anonymous appliance window or just consume existing accounts.

    Anonymous code:

    Map<String, String> acctName2RatingMap = current Map<String, String>{ 'Ant Conglomerate' => 'Warm', 'Bee Collection Agency' => 'Cold', 'Beetle Brothers carcass 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 = current List<Account>(); for(String accName : acctName2RatingMap.keySet()) { Account newAcct = current 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 live able to filter accounts list if needed or just revert 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 name ASC]; } public List<Account> getAccountTable() { List<Account> accountsToReturn = current 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 frosty account: ' + a.Name); } } System.debug(' size after: ' + listToReduce.size()); } public void noOp() { } } Step 3: Visualforce page

    Now they need 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 frosty 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 vestige Flags

    Next, configure vestige flag for their Visualforce controller. It necessary for generation debug logs after controller activity. For vestige flags management, JetForcer provides the vestige Flags tab in the Log Manager appliance 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 flush for Apex log category should live 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 flush for Apex log category should live 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 live at least "Fine")

  • Step 5: Identify a Problem

    Our expectations are that their Visualforce page should live working perfectly! Let’s gain 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 appliance window.

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

  • Retrieving current logs from the server by using the Retrieve final Logs action;

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

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

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

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

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

    Debug Watch is a System#debug(Object) fashion summon with a specific pattern:

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

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

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

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

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

    JetForcer provides several methods of navigating through code while debugging:

    Step Actions: When a debug session is started, the Debug appliance window becomes energetic and enables you to snare control over the code flood execution by using Step Actions.

    They can live called from the quicken menu in the main toolbar, or by using the actions on the stepping toolbar in the Debug appliance 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 utter 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 occupy two consecutive "Cold" accounts, the second one would live 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 frosty 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 crucible version from the official website.Make certain you succeed @JetForcer on Twitter to live notified about updates, features, current releases and absorbing facts about the JetForcer plugin.

    Enjoy developing with JetForcer and JetBrains IDEs!

    Topics:

    salesforce development ,salesforce lightning ,salesforce crm ,salesforce course training ,salesforce app development ,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 live forgiven for assuming that Visualforce is now a legacy technology and that utter current development should live carried out in Lightning. To my intuition this is a diminutive too black and white — while it’s likely that Lightning will snare the lion’s share of attention from Salesforce, and Visualforce is likely to receive maintenance rather than current functionality, Visualforce is a mature technology that is in consume in millions of applications around the world so it’s not going away any time soon.

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

    Another intuition I arbitrator the assumption is flawed is that it pre-supposes utter Visualforce developers can seamlessly transition to Lightning with minimal effort. While this might live upright for the likes of me that occupy been programming for nearly 40 years, it most definitely isn’t the case for those that occupy self-taught themselves Apex and Visualforce by building applications with the attend and advocate of the Salesforce community. A lot of the time this is the only programming these people occupy 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 relish Apex.

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

    Take some time and learn JavaScript

    You don’t need 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 recall a while.

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

    There are masses of JavaScript resources on the web, and I’ve heard very gracious reports from people who’ve used Code School to snare started. My preference is always books and I found protest 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 right learning fashion 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 accomplish this, a developer that comes after you has to search through utter of your markup as well as your JavaScript to motif out where a office might live used. Instead, attaching the handler to the constituent 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 apportion it as the onchange office for the firstname element).

    Avoid Visualforce merge syntax in JavaScript

    It’s very tempting to accomplish something relish 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 pair your JavaScript to the Visualforce rendering engine — if the JavaScript isn’t processed by the rending engine, the merge syntax will live taken as a string literal and anywhere you consume the firstname property will display {!Contact.FirstName} rather than the actual first name of the contact.

    Why is this a gigantic deal I hear you ask? To minimise the load time of a page, you typically want to trail the JavaScript into an static resource so that it can live included as an external file once development is complete. This allows the browser to cache the external file, import that the JavaScript doesn’t occupy to live 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 divide from the page markup, while still delivering it as fraction of the page to gain debugging easier. Once you are pleased 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 current to JavaScript (and I’m expecting a few of you to live reading this), here’s an anonymous function:

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

    Which doesn’t sight too evil on it’s own. Start adding more industry logic and things quickly retrograde 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 error okay');}),function(errorStatus) {console.log('Unable to handle error');} );}});

    In the actual world, with more industry logic than simple console.log statements, when you snare an exception in an anonymous office nested inside several other anonymous functions it’s pretty much impossible to motif 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 office and then carried out a bunch of asynchronous office to store offline and then query back, handling utter responses with additional anonymous functions. A week or so before my desiccate quicken I was frantically rewriting everything!

    Don’t pollute the global namespace

    If you declare variables in JavaScript relish the following, these will utter live 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 utter JavaScript in your page. Thus if you occupy include another JavaScript file that declares:

    var count='This is the counter';

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

    Instead, create objects specific to your JavaScript and cape the variables inside these objects. You still stand a desultory of colliding with an protest 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 protest name prior to the variable:

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

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

    That’s utter there is to it?

    Believe that and you’ll believe anything. The JavaScript language is evolving — ES6 advocate is gradually being added to browsers, ES7 is finalised, frameworks climb faster than house prices and descend faster than politicians reputations, and JavaScript on the server via Node goes from might 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 snare 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 live launching Visualforce, which it describes as “User-Interface-as-a-Service,” as fraction of the company’s “Summer ‘08” release. I spoke with Ariel Kelman, senior director of platform product marketing at Salesforce earlier today to snare the skinny on this buzzword laden news, and while industry software may not live their MO here at Mashable, Visualforce is something to pay attention to, as it’s potentially a technology that could live emulated by platforms far and wide.

    User Interface as a Service

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

    For a simple case of UIaaS in action, if you wanted to include in your company’s implementation of Salesforce a Google Map showing where your customers are located, that would live a pre-built component that could live added to your account by simply adding a solitary 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 touchstone 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 competence to create current applications that automatically match the sight 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 development 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 offer them as open source through Salesforce’s favorite 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 break to demonstrate 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 sight at a specific customer (for example, FedEx) and notice how many degrees away they are from them a unavoidable contact within that organization. Hence, if I’m looking to snare in touch with a VP of industry development at FedEx, perhaps I can notice 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 arbitrator 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 companionable network.

    Salesforce Is Setting The touchstone For "Serious" Web Platforms

    Is it just me, or accomplish the announcements they hear from Salesforce look to just gain a lot more sense than a lot of the tie-ups they hear about on the consumer side of the Web? final 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 notice 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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