This is a example who seeking to make an attachement on Trigger Event.This is pretty good example to understand the how the functioning of trigger by debugging using developer console.
public with sharing class AccountPDFGenerator
{
public static final String FORM_HTML_START = '<HTML><BODY>';
public static final String FORM_HTML_END = '</BODY></HTML>';
public static void generateAccountPDF(Account account)
{
String pdfContent = '' + FORM_HTML_START;
try
{
pdfContent = '' + FORM_HTML_START;
pdfContent = pdfContent + '<H2>Account Information in PDF</H2>';
//Dynamically grab all the fields to store in the PDF
Map<String, Schema.SObjectType> sobjectSchemaMap = Schema.getGlobalDescribe();
Schema.DescribeSObjectResult objDescribe = sobjectSchemaMap.get('Account').getDescribe();
Map<String, Schema.SObjectField> fieldMap = objDescribe.fields.getMap();
//Append each Field to the PDF
for(Schema.SObjectField fieldDef : fieldMap.values())
{
Schema.Describefieldresult fieldDescResult = fieldDef.getDescribe();
String name = fieldDescResult.getName();
pdfContent = pdfContent + '<P>' + name + ': ' + account.get(name) + '</P>';
}
pdfContent = pdfContent + FORM_HTML_END;
}catch(Exception e)
{
pdfContent = '' + FORM_HTML_START;
pdfContent = pdfContent + '<P>THERE WAS AN ERROR GENERATING PDF: ' + e.getMessage() + '</P>';
pdfContent = pdfContent + FORM_HTML_END;
}
attachPDF(account,pdfContent);
}
public static void attachPDF(Account account, String pdfContent)
{
try
{
Attachment attachmentPDF = new Attachment();
attachmentPDF.parentId = account.Id;
attachmentPDF.Name = account.Name + '.pdf';
attachmentPDF.body = Blob.toPDF(pdfContent); //This creates the PDF content
insert attachmentPDF;
}catch(Exception e)
{
account.addError(e.getMessage());
}
}
}
AND THE TRIGGER LOOKS LIKE THIS
trigger AccountTrigger on Account (after delete, after insert, after undelete,
after update, before delete, before insert, before update)
{
if(trigger.isAfter)
{
if(trigger.isInsert)
{
if(trigger.new.size() == 1) // Lets only do this if trigger size is 1
{
AccountPDFGenerator.generateAccountPDF(trigger.new[0]);
}
}else if(trigger.isUpdate)
{
if(trigger.new.size() == 1) // Lets only do this if trigger size is 1
{
AccountPDFGenerator.generateAccountPDF(trigger.new[0]);
}
}
}
}
No comments:
Post a Comment