Reading Visualforce Page Code In Apex

Recently faced a strange requirement to change the Visualforce page code dynamically (apologies can't disclose the complete scenario)

So would like to share the small POC with code. Code will take Visualforce Page name as parameter and will return you the code written for that VFP as text. For example, this is my Visualforce Page saved with name "VisualforceCode"

<apex:page id="PG" controller="VisualforceCodeController">
<apex:form id="FRM">
    <apex:pageMessages id="PM"/>
    <apex:pageBlock id="PB">
        
        <apex:commandLink value="See Magic" action="{!DisplayCode}" >
            <apex:param assignTo="{!CurrentPageName}" value="{!$CurrentPage.Name}"/>
        </apex:commandLink>
        
        <br/> <br/>

        <apex:outputPanel id="OPT" rendered="{!showCodeSection}">
            <apex:outputLabel value="{!PageText}"/>
        </apex:outputPanel>
    
    </apex:pageBlock>
</apex:form>
</apex:page>

Now I want to read the code written in this page, so here is the working code which send page name as parameter in "UtilClass" to get the code as text:

public class VisualforceCodeController
{
    //To display section which hold code as text of VF page
    public boolean showCodeSection {get; set;}
    
    //To hold VF Code as text
    public String PageText {get; set;}
    
    //Hold current page name
    public String CurrentPageName {get; set;}
    
    public VisualforceCodeController()
    {
        CurrentPageName = '' ;
        showCodeSection = false ;
    }
    
    public PageReference DisplayCode()
    {
        if(CurrentPageName != '')
        {
            //Fetching VF code
            PageText = UtilClass.VFPageCode(CurrentPageName) ;
            showCodeSection = true ;
        }
        return null ;
    }
}

To get the visualforce page name I've used "{!$CurrentPage.Name}" which is a global variable

Here Util Class code:

//General Class with static methods
public class UtilClass
{
    //Method will take visualforce page name as parameter and returns the code written in it
    public static String VFPageCode(String PageName)
    {
        ApexPage testPage = new ApexPage();
        String PageText = '' ;
        
        if(PageName != '')
        {
            //Fetching visualforce page code
            testPage = [Select Id, Markup from ApexPage where name =: PageName];
            PageText = testPage.markup ;
        }
        return PageText ;
    }
}

There are many other methods you can use with "ApexPage" mentioned here. So if you want to update the VFP code from apex dynamically you can use "ApexPage"

Creating Public Web-Service in Salesforce

We all are familiar with web services and we often use them. Now let's talk about other side of using web services by making them public so I don't need any authentication/passwords/SessionIds etc.

Recently I need to create a web service so it can used in a mobile app. Most of us know about Mobile SDK, REST, oAuth etc.. but in all I need to intake the credentials of salesforce organization to get access token or if am using web services then to get the session Id. But think about it, why end user will be concerned with the back-end/database? So all we need is a public web service which can be called to process our request.

So follow these simple steps:

1) Create a web service like this

global class DemoClass
{
    webService static string Method()
    {
        return 'DoSomething' ;
    }
}

2) Go to Site > Setup > App Setup > Develop > Sites > Select your Site > Give access of class "DemoClass" to site profile

3) Extract WSDL of your class, go to your class and then click "Generate WSDL". Now all we need to change the SOAP address.

Lets say, this is a snippet of my WSDL

Now we need to change the highlighted code like this:

This is the location:

https://ap1-api.salesforce.com/services/Soap/class/ankit/DemoClass

And our site URL is:

http://ankitarorasite-developer-edition.ap1.force.com/

So our final location will be:

http://ankitarorasite-developer-edition.ap1.force.com/services/Soap/class/ankit/DemoClass

Now you can use this location in your WSDL and there will be no need of getting any access tokens or session Ids. Happy Coding.

Is There Better Way To Get Last Date Of Fiscal Quarter?

Recently it was requested to get the "Last Date" of present Fiscal Quarter. For e.g. if "Fiscal Year Start Month" is set to January (Setup > Administration Setup > Company Profile > Fiscal Year) and present month is Feb then date returned should be "31 March 2012"


SOQL is not the option as in the end I need to get the Date so after lot of brain storming end up with this solution, if this is not the best solution then other solutions suggestions are most welcomed.


So here is my apex method which returns me the last date of present fiscal quarter

//Returns last date of present fiscal quarter
public Date LastDateofCurrentFQ()
    {
        // Info : There are 4 Fiscal Quarter FQ( each of 3 months) in fiscal year 
        Organization  org = new Organization() ;
        org = [select FiscalYearStartMonth from Organization where id=:Userinfo.getOrganizationId()];
        Integer FiscalYearStartMonthIndex = org.FiscalYearStartMonth ; 

        // Month Index like january : 1 , february: 2 and so on 
        Integer CurrentMonthIndex = system.today().month();

        if(CurrentMonthIndex < FiscalYearStartMonthIndex )
            CurrentMonthIndex  = 12+ CurrentMonthIndex ;

        Integer DifferenceofBothMonths = CurrentMonthIndex - FiscalYearStartMonthIndex  ;
        Integer CurrentFiscalQuarterLastMonth  = 0; 

 if(0 < = DifferenceofBothMonths && DifferenceofBothMonths <= 2 ) //For first quarter
            CurrentFiscalQuarterLastMonth = FiscalYearStartMonthIndex  +2 ; 
        else if( 3 <= DifferenceofBothMonths && DifferenceofBothMonths <= 5) //For second quarter 
            CurrentFiscalQuarterLastMonth = FiscalYearStartMonthIndex  +5 ;
        else if( 6 <= DifferenceofBothMonths && DifferenceofBothMonths <= 8) // For third quarter
            CurrentFiscalQuarterLastMonth = FiscalYearStartMonthIndex  +8 ;
        else if( 9 <= DifferenceofBothMonths && DifferenceofBothMonths <= 11) // For fourth quarter
            CurrentFiscalQuarterLastMonth = FiscalYearStartMonthIndex  +11 ;

        if(CurrentFiscalQuarterLastMonth > 12)
            CurrentFiscalQuarterLastMonth  = CurrentFiscalQuarterLastMonth  - 12 ;         

        Date firstDateOFyear = date.newInstance(system.today().year(), 1, 1);
        Date LastDateofCurrentFQ  = date.newInstance(system.today().year(), 1, 1); 
        LastDateofCurrentFQ   = firstDateOFyear.addMonths(CurrentFiscalQuarterLastMonth).addDays(-1) ;
        return LastDateofCurrentFQ ;        
    }

Code is self explanatory, still if anything is not clear do reach me out.