Archive for June 2016

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Schedule Batch Class to run hourly on every 15th minutes in Salesforce

You can use the System.schedule method, which takes a cron string to represent the repeating time.

Execute below code to run batch on every 15th minutes of hours.

String CRON_EXP = '0 15 * * * ?';
testSchedule sch = new testSchedule();
system.schedule('Test Schedule', CRON_EXP, sch);

Changes 15 to schedule as your requirement!

For Hourly on 0 minute use below code:

String CRON_EXP = '0 0 * * * ?';
testSchedule sch = new testSchedule();
system.schedule('Test Schedule', CRON_EXP, sch);

Hide Search Box and Recent Items in Community pages

In default community pages left side bar showing Search box and Recent Items are sometimes giving access to some unwanted records. Here is a work around to hide then.

Make a HTML file and following JQuery to hide left panel.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript">

/* Hide the search box and recent items */

var j$ = jQuery.noConflict();

j$(document).ready(function(){

j$("#sidebarCell").hide();

j$(".sidebarCell").hide();

});

</script>

Add this file into documents.

Then Add this in Footer of Community.

System Mode and User Mode in Salesforce!

Another most confusing thing in Apex programming is System Mode and User Mode!

Few state forward points:

System mode -

Its running apex code by ignoring user's permissions. So if logged in user does not have create permission but they will able to create a record.
Apex code has access to all objects and fields, sharing rules aren't applied for the current user.
All apex code run in system mode. It ignores user's permissions. Only exception is anonymous blocks like developer console and standard controllers.

User mode -

Its running apex code by respecting user's permissions and sharing of records. So, logged in user does not have create permission they are not able to create a record.
Only standard controllers and anonymous blocks like developer console run in user mode.

With sharing & Without sharing in Salesforce Apex!

The most confusing and always been part of discussion where the answer is not satisfactory!

With sharing & Without sharing in Apex.

Remember theses points:

If nothing mentioned in class then default is "Without sharing".
If nothing defined in class and called within other class then it will execute with calling class's sharing setting accordingly.
The sharing setting applies to all code contained with in the class, including initialization code, constructors, and methods.
Inner classes do not inherit the sharing setting from their container class.
If a with sharing class calls a without sharing class, then the called method(s) will be executed in the mode of the class in which they were defined, in this case, the called method(s) will execute in without sharing mode.
The 'without sharing' keyword is to ensure that the sharing rules (not permissions) for the current user are not enforced.
The with sharing keyword allows you to specify that the sharing rules (and not permissions) for the current user be taken into account for a class. You have to explicitly set this keyword for the class because Apex code runs in system mode.

Work around to achieve campaign object's history tracking.

Campaign History Tracking Idea is still waiting to implementation. You can vote here for this: https://success.salesforce.com/ideaView?id=08730000000BqXRAA0

It can be achived using custom fields and either a Workflow, Process Builder or Apex Trigger, but by without code you could use Chatter Feed Tracking instead!

Go to Customize > Chatter > Feed tracking and enable Campaign fields to track.

Now you can see field changes history in Chatter Feed.

Enable more than 20 fields for Field History tracking.

This approach uses a custom Text field which stores values of multiple other individual fields. Then enabling field history tracking of this field would allow you to track changes for multiple sets of other individual fields, instead of enabling field history tracking for 3 fields - Email, City, Phone- the only field which needs to be enabled for history tracking is the custom field - track3Fields.

This way you are able to track changes for 3 fields by consuming only 1 unit of the total 20 limit.

Steps:

Step 1: Add a new custom field.

Setup -> Create -> Objects-> Incident

Create a new Text (255) field “track3Fields”

Step 2: Create a workflow on Incident object with the following:

Event: On Create/Update

Criteria: On any change of Email, City, Phone

Action: Field Update

Set track3Fields = Formula (Email: <Email> + City: <City> + City: <City>)

Step 3: Enable Field History tracking for this combined field “track3Fields”.

How to schedule batch class after every 4 hours in a day

You can use the System.schedule method, which takes a cron string to represent the repeating time.

Key is to create string expression that will result in firing every two hours:
Something like:

0 0 1,3,5,7,9,13,15,17,19,21,23 * * ?

Key is to create string expression that will result in firing every four hours:
Something like:

0 0 0,4,8,12,16,20 * * ?

So you can create expression to run batch on specific hours as in above example!

Go to dev console and execute code like below, this code will schedule batch for every four hours.

String CRON_EXP = '0 0 0,4,8,12,16,20 * * ?';
testScheduler sch = new testScheduler();
system.schedule('Update job', CRON_EXP, sch);

What is Cloud Computing?

Pictorial representation of internet is Cloud.
Cloud Computing is nothing but internet computing.
With this approach everything can be done in internet, no need of any minimum hardware requirements and no need to install any software in local system.
Cloud Computing is an approach to provide the following services:-

SAAS (Software As A Service)
PAAS (Platform As A Service)
IAAS (Infrastructure As A Service)

What is TAB in Salesforce?

Tab is a user interface component to user creates to display custom object data.

There are three type of tabs.

Custom Tabs
Visual force Tabs
Web Tabs

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Schedule Batch Class to run hourly on every 15th minutes in Salesforce

Hide Search Box and Recent Items in Community pages

System Mode and User Mode in Salesforce!

With sharing & Without sharing in Salesforce Apex!

Work around to achieve campaign object's history tracking.

Enable more than 20 fields for Field History tracking.

How to schedule batch class after every 4 hours in a day

What is Cloud Computing?

What is TAB in Salesforce?

Navneet k

Navneet kumar, Software consultant from delhi, India. Basically from Bisfi, Madhubani Bihar. Software Engineer!

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Navneet Software consultant from delhi

Navneet kumar Software consultant from delhi

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