Difference between system mode and User mode

Difference between system mode and User mode?

Hi guys,

 

Can you clarify the meaning and execution process of both system mode and user mode?

 

 

November 25, 2012ReplyLike0

kiran_mutturu

Apex generally runs in system context; that is, the current user's permissions, field-level security, and sharing rules aren’t taken into account during code execution except when you are invoking apex in executeAnonymous  user mode is which repects the user permissions and field level security ...... hope you got it...

November 26, 2012·Like0·Dislike0

SFDC_Learner

Yes.

 

who decides system mode / user mode?

 

public with sharing class  -> user mode (in this case user's permissions, field-level security, and sharing rules apply when executing apex)

 

public class -> system mode (in this case user's permissions, field-level security, and sharing rules not apply when executing apex)

 

And what is the meaning for invoking apex in executeAnonymous ?

 

Is it right?

November 26, 2012·Like0·Dislike0

kiran_mutturu

platform will decide based on your code...

 

as you wrote above public with sharing class  --> this will respect the user security settings and all by the server 

 

if not then it will not work w.r.t user i.e. system mode....

 

executeAnonymous in the sense executing apex code in developer console or eclipse ide......

November 26, 2012·Like0·Dislike0

SFDC_Learner

Ok Thanku.

 

 

Suppose i don't have edit permission at profile level of a custom object. I created  a class using "public class". Can i still edit the record through this apex class (even if we don't have edit on profile level)?

 

 

As per "public class" its not effected by profile permission as u told.

 

right?

 

 

November 26, 2012·Like0·Dislike0

sandeep@Salesforce

There is difference of execution perspective between User & System Mode. Like in 

User Mode : 

All Permissions granted to user are enforced while execution

 

System  Mode : 

All permissions granted to user are ignored while execution. We can understand this by following example : 

 

Standard controller gets executed in user mode for e.g. if we use Account as standard controller in VF page and user does not have access permission to
access Account then he will get insufficient privileges error message.

Custom controller and custom extension always run in system mode ( ignoring user's permission) but we can run it in user mode using a new keyword
"with sharing".

 

November 26, 2012·Like6·Dislike0

Ankush Samudrala

Nice explanation sandeep..(diff between user and sys mode.)

November 26, 2012·Like0·Dislike0

ravi21lifeline

Thanks Sir....nicely explained!!

October 5, 2013·Like0·Dislike0

sandeep@Salesforce

Hi Please mark it as solution so it may be availale for others for similar problem.

October 6, 2013·Like0·Dislike0

Amit Luniya

What Sandeep mentioned is partially correct but partially incorrect as well.

All apex code runs in system mode. It ignores user's permission. Only exception is anonymous blocks like developer console.

Mentioning 'with sharing' respects 'Org wide defaults' and role hierarchy but not sharing rules, object and field related permissions. To run your code in user mode either use standard controllers or explicitly restrict execution of block for particular profile(s) using if condition or some other custom logic.

January 23, 2014·Like1·Dislike0

Gopal Singh

Applying With Sharing keyword doesn't meant that code will run in user mode.To some extent u can get the flavour of user mode but not absolutely.

November 24, 2014·Like0·Dislike0

Lokeswara Reddy

How about validation rules?

If opportunity stage value meets the criteria then trigger fires and invokes handler code which inturn calls external webservcie, if the response from webservcie is success then update a field in Account object. 
The plan is to secure this field and there is a validation rule to prevent any user (except system admin and interface user) from updating on this field,  ( the field can not be hidden from the PG layout and there are users with permission sets to update if the field is read only on PG layout)

I was under impression that as the field update is happending in Apex, the validation rules will by pass, but it is not.

-> User updates opportunity stage value,
-> the trigger fires and invokes webservcie,
-> webservice returns success
-> Apex tries to update field on Account , this step failed as there is a validation rule to prevent user from updating the field
Any thoughts on how to resolve this?

 

February 25, 2016·Like0·Dislike0

Navin Soni

Hi All,

System mode -System mode is nothing but running apex code by ignoring user's permissions. For example, logged in user does not have create permission but he/she is able to create a record.In system mode, Apex code has access to all objects and fields— object permissions, field-level security, sharing rules aren't applied for the current user. This is to ensure that code won’t fail to run because of hidden fields or objects for a user.In Salesforce, all apex code run in system mode. It ignores user's permissions. Only exception is anonymous blocks like developer console and standard controllers. Even runAs() method doesn't enforce user permissions or field-level permissions, it only enforces record sharing.User mode - User mode is nothing but running apex code by respecting user's permissions and sharing of records. For example, logged in user does not have create permission and so he/she is not able to create a record.In Salesforce, only standard controllers and anonymous blocks like developer console run in user mode.Thank You,
Navin Soni