[Demo] Fix error when viewing newly created deals in CRM demo

[erwanMarmelab]

Problem

In the CRM demo, there is an error on viewing a newly created deal.:

When you create a new deal. You didn't set se start_at value.
On the show page, we try to format this date.
When there is any value in the start_at column, we have an error.

Solution 1

Format conditionally this value

Solution 2

Add a start_at input tn the create form

Chosen solution : 2

[fzaninotto]

This is not the right fix. A new deal should have a date, so you'd better add a start_date input in the DealCreate form, under the company_id input.

                    <DateInput
                        source="start_at"
                        defaultValue={new Date()}
                        fullWidth
                    />