ForceTree.com

Force.com Sites - A sneak peak

6:01 AM

Standard new/edit page Vs your Visualforce Page

8:05 AM

I just found this stuff to be very exciting and thought would be worth sharing...

I was reading through the forums and found a particular post.. the description is like this..

The "New" button has to be overridden with a Visualforce Page. When the Visualforce page loads some calculations are performed and the user is either redirected to the standard new/edit page or he stays in the same Visualforce page... And the interesting part was the standard new/edit page has to be prefilled with data passed from the visualforce page...

This is how it can be done.. We will take Account as an example.. We will override the Account new button with a visualforce page..

I will create a Visualforce page.. Just a small one

<apex:page standardController="Account" extensions="newvsold" action="{!pageredir}">

</apex:page>

And the Apex class would be..

public class newvsold
{

public newvsold(ApexPages.StandardController controller)
{

}
public Pagereference pageredir()
{
    Pagereference newpage = new Pagereference ('/001/e?retURL=/001/');
    return newpage;
}
}

So go ahead and override your "new" button with the Visualforce page you just created.. Now when you click on "New" button under Accounts what do you observe..

Yes the same old Account new page is displayed.. It is because we call a method in the "action" attribute of the page tag..(If you are unclear about the "action" attribute then read this article here ).. this method redirects the user to the normal new page.. Now let's analyze the URL we have specified in the Pagerefernce...

/001/e?retURL=/001/ --- The number 001 indicates Account, e indicated edit and retURL specifies where to go after hitting any button on the page.. Like 001 for Account all objects have a number.. You can always check it in the URL bar..

I simply did a redirection.. you can add any complex logic there...

Now going to the interesting part.. How will i prepopulate my new page with values.... Here it is

Go to the Account "new" page...

Right-click and select "View Source" or "View Page Source".... and in the window that appears search for "Account Name"...

Now after the place where you see "Account Name" look for "<input" and note the "id"

In our specific case the id is "acc2" which denotes Account Name....

In the url bar just type ... https://yoursalesforceinstance.com/001/e?acc2=test&retURL=/001/

Or you can modify the Apex Code as below...

public class newvsold
{

   public newvsold(ApexPages.StandardController controller)
   {

   }
   public Pagereference pageredir()
   {
       Pagereference newpage = new Pagereference ('/001/e?acc2=test&retURL=/001/');
       return newpage;
   }  
}

"acc2" denotes Account Name.. similarly all fields have own id... and you can pass values for as many fields as you like unless you do not exceed the maximum URL size...

Even though this sounds a very strange method.. i just thought it might help someone somewhere..

email from apex

Sending an Email from your Apex Class

1:23 AM

There may be situations in which you would not want a workflow email alert, because either your criteria to send an email may be too complex or the person whom you want to send an email has to be determined dynamically..... In such situations you can choose to send an email from a Apex Class...

Sending an email from a Apex Class is so easy... Basically there are two categories

SingleEmailMessage - This is used when you want to send an email to a single person..

MassEmailMessage - This is used when you want to send an email to a group...

First, let us see about the SingleEmailMessage type....

Step1:

Create a Apex Class with the following code....

public class testemail
{
private final Contact con;
public testemail(ApexPages.StandardController controller)
{
this.con=(Contact)controller.getRecord();
}

public void SendEmail()
{
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
mail.setTargetObjectId(con.Id);
mail.setTemplateId('00X90000000QHUD');
Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });
}
}

Mention a valid Email Template ID in the colored part...

Step 2:

Create a VF page named as "testemail" or anything as your wish , and paste the code below..

<apex:page standardcontroller="Contact" extensions="testemail">
<apex:form>
<apex:commandButton value="Send Email!" action="{!SendEmail}"/>
</apex:form>
</apex:page>

Step 3:

Go to the url bar and type
https://yoursalesforceinstance.com/apx/testemail?id=00390000001TqnV

Note that i have mentioned a valid Contact Id of my organization, make sure you mention a valid contact ID of your SF instance.

Step 4:

You should be able to view the page below

Click on the "Send Email" button and your email is sent to the Email address of the Contact mentioned in the url.....

Analyzing the code.. we can see that four simple lines are enough to send a mail

The first line instantiates an instance of the SingleEmailMessage object...

The second line associates the Contact ID to the email.. this is used to retrieve the toaddress and any merge fields that may be included in your email template...

Note that in the third line we have hardcoded the Email Template ID... This ID belongs to my organization, you will have to replace it with your's...

And in the final step the sendemail method is called and the email is sent...

Template ID

Do you think its weird to hardcode a Template Id in your code.. yes, definitely it is..

There is a EmailTemplate object which you can query and retrieve the template ID you require... below is a small sample which you can plug-in into this example after modifying appropriately..

emailtemplatelist = new List<EmailTemplate>();
for ( EmailTemplate e : [select Id,Name,Subject,body from EmailTemplate where name like :userinputtemplatename+'%'])
{
emailtemplatelist.add(e);
}

Sending an email without a Template -

The above method is used only when you want to associate a Email Template to your email. When you use an Email Template you will have to specify a valid Contact Id, or User Id, or Lead Id as the target Object Id. If you specify any other object's Id your code wouldn't work.

If you do not want to use a template you can specify the toAddress, Subject and Body of the email using the appropriate methods. Below is a piece of code which sends an email not associated to an email template.

 String[] toaddress = new String[]{};
toaddress.add(emailaddress[i]);
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
mail.setToAddresses(toaddress);
mail.setsubject(subject);

Hope the methods are self-explanatory...

You have a Email Template but you dont have a Contact,or User,or Lead ????????

There may and will arise situations in which you have a Email Template.. You would not have any merge fields in this Email Template. ..

You would like to send an Email using this Email Template.. But you do not have a Contact, or a Lead or a User to set as the targtObjectId...

In such cases, you can create a Contact on the fly, send the email and then delete the Contact... Remember to create the contact with Name, and Email since these are mandatory fields to send an Email...

Sending Mass Email

Now that you have learnt to use the single email message, the mass email message is much simpler to understand...

You just need to replace the targetobjectId with setTargetObjectIds... And of course, you will have to specify a list of valid Contact,User or Lead ID's...

For the same example, just replace the Apex code as below...

public class testemail
{
  private final List<Id> contactids;
  public List<Contact> con;
  public testemail(ApexPages.StandardController controller)
  {
     con = [select Id from Contact limit 250 ];
     for(Integer i=0;i<250;i++)
     {
         contactids.add(con[i].Id);
      }  
  }

  public void SendEmail()
  {
       Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage();
       mail.setTargetObjectIds(contactids);
       mail.setTemplateId('00X90000000QHUD');
       Messaging.sendEmail(new Messaging.MassEmailMessage[] { mail });
  }  


}

What we do is, query the contact object and get a list of Contact Id's... We then set this list of ID's as the targetobjectId's....

Force.com Sites - A sneak peak

Standard new/edit page Vs your Visualforce Page

Sending an Email from your Apex Class

Pages

Search This Blog

Blog Archive

Subscribe

Like Us on FB