Wednesday, May 11, 2016

Salesforce Interview Questions-Sharing & Security Part-4

16. True or False: A field hidden by field-level security is still visible through the API?

17. True or False: Child records in master-detail relationships have their own OWD?
False. In Master detail relationship, child inherit OWD from OWD. If you see OWD for child in master detail relationship, then system will display “Controlled by parent” in OWD settings page.
Child in look up relationship have different OWD as they are loose coupled.

18. If even one person in your organization is not allowed to see position data, what will be OWD ?

19. What is apex manage sharing?
Apex managed sharing is a type of "Programatic Sharing" which allows you to define a custom sharing reason to associate with your programatic share. Standard Salesforce objects support "Programatic Sharing" while custom objects support Apex managed sharing. More specifically, object shares can be written to both standard and custom objects, however custom sharing reasons can only be defined for shares written to custom objects.
apex manage sharing is used for custom objects as we can define apex sharing reason for custom objects. For standard object, apex sharing reason will be “Mannual”.
Salesforce create share table for all objects for which OWD is either public read only or Private. For standard object, share table name is table name followed by share word. For example: AccountShare, ContactShare, CaseShare
For custom object, it is followed by __share. For example : For Position__c, share table name is Position__share

20. How to create share table record using apex?
Share table contains four columns: ParentId, UserOrGroupId, RowCause, AccessLevel.
Below is code to create position__share record:
Position__share p = new Position__share();
p.parentId = ‘Position Record Id which needs to be shared’;
p.userOrGroupId= ‘User id or Group id with which we want to share record’;
p.RowCause=’ apex sharing reason defined for custom object, here for position__c’;
p.AccessLevel =’access level for record’; //can be Read or Edit
insert p;
Note: you cannot update share table record. System only allows insert or delete of records for share table. So if you have to change access for user, you have create new record and can delete already existing record if you want.

21. Can we define apex sharing reason for standard object?
No. We can define apex sharing reasons for custom object.
Apex sharing reasons are defined object by object. - so, positions might have different reasons than candidates.

<<Sharing & Security Part-3


  1. Tks very much for your post.

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