Cannot edit checkbox (input field in User site guest)

Question

I have a User site guest which displays fields of an object

For example, if it's a checkbox If I do

<apex: inputField value = "{! loggedC.Expression_rens_F1__c}" />

The checkbox appears well but cannot be checked

However, with

<apex: inputCheckbox value = "{! loggedC.Expression_rens_F1__c}" />

The checkbox can be checked

My VisualForce page is as follows:

<apex:page standardController="NewR__c" extensions="VisualisationController" showHeader="false" sidebar="false" standardStylesheets="false" docType="html-5.0" cache="false">
<apex:inputCheckbox value="{!loggedC.Exactitude_rens_F1__c}" />
</apex:page>

My controller is the following:

public class VisualisationController {
  Public NewR__c loggedC{ get; set; }
    
  Public VisualisationController(ApexPages.StandardController standardController) {
       try {
            loggedC= [SELECT Id,
                                    Exactitude_rens_F1__c,
                                    FROM NewR__c
                                    LIMIT 1];
        } catch(Exception e) {
            System.debug(e.getMessage());
        }
}

I also use text fields with inputFields and they also appear uneditable

Currently my VF page is only with apex: inputField (I don't think I'll change it given the large number)

By going to Setup-> Sites-> Click on site -> Public access settings -> Object settings I see the object is read but I don't see how to put the object in modification The field is read / Modified

I'm wondering if I shouldn't create a permission set instead of using the User site guest profile

Do you have an opinion?

Answer 1

To have the permission to Edit a field with apex:inputField, we have to put the ignoreEditPermissionForRendering attribute (https://trailblazer.salesforce.com/issues_view?id=a1p3A000001YpKGQA0)

Even if this is resolved, a new error appear I can't update an object with DML "update" in User Site Guest.. I have the message "core.apexpages.exceptions.ApexPagesGenericException: system.security.NoAccessException: Access in update denied for NewR__c. Controller action methods might not not run (VisualForce page with customController)