Author Archives: Biswajeet

About Biswajeet

Biswajeet is my Name, Success is my Aim and Challenge is my Game. Risk & Riding is my Passion and Hard Work is my Occupation. Love is my Friend, Perfection is my Habit and Smartness is my Style. Smiling is my Hobby, Politeness is my Policy and Confidence is my Power.

Limit Class and Limit Methods in Salesforce

Biswajeet   March 31, 2017   No Comments on Limit Class and Limit Methods in Salesforce

The Limits methods return the specific limit for the particular governor, such as the number of calls of a method or the amount of heap size remaining.

Because Apex runs in a multitenant environment, the Apex runtime engine strictly enforces a number of limits to ensure that runaway Apex doesn’t monopolize shared resources.

None of the Limits methods require an argument. The format of the limits methods is as follows:

 Integer queryLimitRows = Limits.getLimitQueryRows();

There are two versions of every method: the first returns the amount of the resource that has been used while the second version contains the word limit and returns the total amount of the resource that is available.

Limits Methods:
The following are methods for Limits. All methods are static.

System.debug('Limits.getAggregateQueries - '+ Limits.getAggregateQueries());
System.debug('Limits.getLimitAggregateQueries - '+ Limits.getLimitAggregateQueries());
System.debug('Limits.getCallouts - '+ Limits.getCallouts());
System.debug('Limits.getLimitCallouts - '+ Limits.getLimitCallouts());
System.debug('Limits.getCpuTime - '+ Limits.getCpuTime());
System.debug('Limits.getLimitCpuTime - '+ Limits.getLimitCpuTime());
System.debug('Limits.getDMLRows - '+ Limits.getDMLRows());
System.debug('Limits.getLimitDMLRows - '+ Limits.getLimitDMLRows());
System.debug('Limits.getDMLStatements - '+ Limits.getDMLStatements());
System.debug('Limits.getLimitDMLStatements - '+ Limits.getLimitDMLStatements());
System.debug('Limits.getEmailInvocations - '+ Limits.getEmailInvocations());
System.debug('Limits.getLimitEmailInvocations - '+ Limits.getLimitEmailInvocations());
System.debug('Limits.getFutureCalls - '+ Limits.getFutureCalls());
System.debug('Limits.getLimitFutureCalls - '+ Limits.getLimitFutureCalls());
System.debug('Limits.getHeapSize - '+ Limits.getHeapSize());
System.debug('Limits.getLimitHeapSize - '+ Limits.getLimitHeapSize());
System.debug('Limits.getMobilePushApexCalls - '+ Limits.getMobilePushApexCalls());
System.debug('Limits.getLimitMobilePushApexCalls - '+ Limits.getLimitMobilePushApexCalls());
System.debug('Limits.getQueries - '+ Limits.getQueries());
System.debug('Limits.getLimitQueries - '+ Limits.getLimitQueries());
System.debug('Limits.getQueryLocatorRows - '+ Limits.getQueryLocatorRows());
System.debug('Limits.getLimitQueryLocatorRows - '+ Limits.getLimitQueryLocatorRows());
System.debug('Limits.getQueryRows - '+ Limits.getQueryRows());
System.debug('Limits.getLimitQueryRows - '+ Limits.getLimitQueryRows());
System.debug('Limits.getQueueableJobs - '+ Limits.getQueueableJobs());
System.debug('Limits.getLimitQueueableJobs - '+ Limits.getLimitQueueableJobs());
System.debug('Limits.getSoslQueries - '+ Limits.getSoslQueries());
System.debug('Limits.getLimitSoslQueries - '+ Limits.getLimitSoslQueries());

Insert Records in Salesforce by using JavaScript

Biswajeet   March 30, 2017   No Comments on Insert Records in Salesforce by using JavaScript

In this article I’ll demonstrate how to insert record in Salesforce object by using javascript, in VF page without any standard or custom controller or by apex class.

By using AJAX Toolkit we can do this task easily. There are two types of AJAX Toolkit one is synchronous and another one is asynchronous call.

Here is a simple example of data insert using Javascript in Visualforce page. In below example I’m using synchronous call.
These are the steps to insert data using Javascript:

  1. Connecting to the AJAX Toolkit(By using login methods or getting Session_ID).
  2. Embedding the API methods in JavaScript.
  3. Processing the results.

Sample Code:

<apex:page id="pg">
    <script src="/soap/ajax/20.0/connection.js" type="text/javascript"></script>
	<script>
		function insertAcc(){

			// Getting Session ID.
			sforce.connection.sessionId = "{!$Api.Session_ID}";

			//Creating New Account Record.
			var account = new sforce.SObject("Account");

			//Getting Account Name from inputText.
			account.Name = document.getElementById("pg:frm:pb:pbs:pbsi:txtName").value;

			//Create method 
			var result = sforce.connection.create([account]);

			//Getting result 
			if (result[0].getBoolean("success")) {
				alert("New Account is created with id " + result[0].id);
			}
			else {
				alert("failed to create new Account " + result[0]);
			}
		}
	</script>
	<apex:form id="frm">
		<apex:pageBlock title="Insert Account" tabStyle="Account" id="pb">
			<apex:pageBlockSection title="Account Name" columns="1" id="pbs">
				<apex:pageBlockSectionItem id="pbsi">
					<apex:outputLabel value="Name" />
					<apex:inputText title="Name" id="txtName" />
				</apex:pageBlockSectionItem>
			</apex:pageBlockSection> 
			<apex:pageBlockButtons>
				<apex:commandButton onclick="return insertAcc();" value="Save"/>
			</apex:pageBlockButtons>
		</apex:pageBlock>
	</apex:form>
</apex:page>