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Related reference Fields Value in sObject SOQL In Dynamic SOQL we create query string using Apex code at run time and use Database.Query method to fetch the results. example:  String queryString = ' SELECT Id, Name, AccountId FROM Contact LIMIT 1'; sObject result = Database.query(queryString); above query will return me a contact information, if I wanted to access record's Name I can access it using sObject get() method i.e. result.get('Name') will give me Name value. Output: But the real challenge we will face when you try to access fields value from related object field, i.e. if you try to access Account.AnnaualRevenue you will get an exception 'System.SObjectException: Invalid field Account.AnnualRevenue for Contact'. To fix this we we will use getSObject() method to traverse the relationship. below code will traverse the relationship and get you the value: References: sObject Class , String Class , Martin Borthiry

Asynchronous Apex Triggers In Summer 19 release Salesforce introduce a new feature to process data using a combination of 'Asynchronous Apex Triggers' and Change Data Capture. Any DML on Salesforce records causes platform to start a series of calculations, run business logic and database updates, all these are called as an Apex Transactions. You can reduce the Apex transaction time to complete the business logic and limit constraints by decoupling resource-intensive, non-transactional logic from database transaction and execute asynchronously.  Asynchronous Apex triggers are change event triggers that run asynchronously after a database transaction is completed. They are ‘after-insert’ triggers and can be defined with the after insert keywords. They can be created the same way we create regular Apex triggers. You set the trigger to use a change event object instead of an sObject. The change event object name is suffixed with ChangeEvent. For example, Account change e...

Lightning Web Component : lightning-record-view-form A  lightning-record-view-form  component is a wrapper component that accepts a record ID and is used to display one or more fields and labels associated with that record using  lightning-output-field . lightning-record-view-form  requires a record ID to display the fields on the record. It doesn't require additional Apex controllers or Lightning Data Service to display record data. This component also takes care of field-level security and sharing for you, so users see only the data they have access to. Displaying Record Fields : To display the fields on a record, specify the fields using lightning-output-field. Attributes: NAME ACCESS ...

Lightning Web Component: lightning-record-form A  lightning-record-form  component enables you to quickly create forms to add, view, or update a record.  Using this component to create record forms is easier than building forms manually with  lightning-record-edit-form  and  lightning-record-view-form . However,  lightning-record-form  does not support client-side validation quite the same as  lightning-record-edit-form . The object-api-name attribute is always required, and record-id is required if you are editing a record. NOTE: this component take cares of field-level security and sharing for you, so users will only see the data that they have access to. Modes This component accepts mode value that determines the user interaction determine for them. The values can be one of the following: a. edit :  Creates an editable form to add a record or update an existing one. When updating an existing record, specify the...

Salesforce Connect Salesforce connect is a framework that enables you to view, search and modify data that's stored outside your Salesforce org. Instead of extracting and copying that data into your org using ETL tool, we can use external objects to access that data real time using web-service callouts. Salesforce recommend to use Salesforce Connect if You have large amount of data that you don't want to copy into your Salesforce org. You need small amount of data at any one time. You need real-time access to the latest data. You store your data in the cloud or in a back-office system, but want to display or process that data in your Salesforce org. External Objects: External objects in Salesforce are similar as custom objects but they are mapped to data located outside your Salesforce org. Each of the external object’s fields maps to a table column on the external system. External objects enable users to search and interact with the external data. Each or...

SOQL Injection A SOQL injection consists of insertion or injection of SOQL query via the input data from client to application. A successful SQQL injection exploit can read sensitive data from the database. Below is the example of Apex and Lightning Component code vulnerable to SOQL injection. Now enter name existing contact name and click on search button to see the result, in my case I search for contact whose Name contains 'Winter'. Now in search box enter " winter%' OR Name LIKE ' " and click on search button to all contact records. How to prevent SOQL injection? 1. Static Query: To prevent SOQL injection attach, avoid using dynamic SOQL queries. Instead, use static queries and binding variables. 2. Escaping Single Quotes: use of string.escapeSingleQuotes() method arounf variable function escapes any instance that it finds of a ‘ quote in the string using the backslash (\) escape character. This prevents an attacker’s input from...

lightning:map component lightning:map introduced in winter 19 which can be use display a map of one or more locations using Google Maps. We can pass markers to the component to define the locations to map. A marker can be a coordinate pair of latitude and longitude, or a set of address elements: City, Country, PostalCode, State, and Street. This component requires API version 44.0 and later. lightning:map has required attribute mapMarkers which accepts array of markers that indicate location. A market contains Location information:  This can be a coordinate pair of latitude and longitude, or an address composed of address elements. Descriptive information:  This is information like title, description and an icon which is information relevant to the marker but not specifically related to location. Example Create a new Object called 'Tower' with two new custom fields 1. Field Label: State     Type: Master-Detail (Account) 2. Field Label: Locati...