Solution 1: Display All Employees

To display all employees regardless of whether they have shifts on a particular date, you'll likely need to customize the gantt view. This may require extending the existing views or creating a new view to override the default behavior. This approach might involve some technical development work.

Solution 2: Display Employees Without Shifts

To display only employees who don't have shifts on a particular date, you can follow these steps:

1. Create a Custom View:

   You can create a custom view for the gantt chart that filters employees based on their shifts. This will require creating a new view definition in XML.

2. Add Filter Criteria:

   In the custom view definition, you can add a domain to filter the employees displayed in the gantt chart. The domain should be constructed to exclude employees with shifts on the selected date.

   -->example of what the XML code might look like:

record id="view_custom_planning_gantt" model="" rel="ugc">ir.ui.view">

field name="name">Custom Planning Gantt

field name="model">resource.calendar.attendance

field name="inherit_id" ref="planning.planning_gantt_view"/>

field name="arch" type="xml">

xpath expr="//ganttview" position="attributes">

attribute name="default_domain">[('date', '!=', selected_date)]

/xpath>

/field>

/record>

1. In this example, replace selected_date with the actual date you want to filter by.

2. Activate the Custom View:

   After defining the custom view, activate it in your module. This will ensure that the view is used when displaying the gantt chart in the Planning module.

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