Is there a way to define if a field is Ever Updateable, if Update access can be granted to a field by Profile or Permission Set?

Question

Is there a way to define if a field is Ever Updateable, if Update access can be granted to a field by Profile or Permission Set?

Field Describe information for a field can define if permissions can be set to a field by looking into isPermissionable() function result, but it doesn't say if a field can be set Update permission.

Field Describe information for a field can define if field can by updated by the current user, but also it doesn't say if a field can be set Update permission by admin for the current user.

Is there a way to determine that some fields like Contract.EndDate or Individual.MasterRecordId is readonly and can never be set Update permission?

Answer 1

In my package for Bulk Object and Field permission, I decide this by the following rule.

I define field as Readonly and not available for Update permission if one of the statements holds true

1. Describe field result isCalculated() method returns true. Which means this is a custom formula field

   Returns true if the field is a custom formula field, false otherwise. Note that custom formula fields are always read-only.

2. Describe field result isAutoNumber() method returns true. Which means this is an auto number field.

   Returns true if the field is an Auto Number field, false otherwise.

3. The field is EndDate for Contract or MasterRecordId for Individual.