Please find code here :-

For integer field required, you need to add integer field in your object, and set the required parameter in field.

Py file code:

field_name = fields.Integer(string="Field Name" required=True)
when you are required integer field by py file, that field required in database and view both side.

xml file code:

<field name="field_name" required=1/>
when you are required integer field by xml file, that field required only for view not database.

Hi Jainesh, The idea that you are presenting is very basic for other datatype fields. However, It will not work if Integer and Float fields are required while saving records.