Version 9

The code IND is used in 2 models:

<record id="ind" model="hc.vs.participation.type">   

            <field name="code">IND</field>

<record id="ind" model="hc.vs.identifier.type">

            <field name="code">IND</field>

Each model has the SQL constraint

_sql_constraints = [

        ('code_unique',

        'UNIQUE(code)',

        "The concept code must be unique.")

        ]