Hello,

Im trying to create the Access right to custom model using the dropdown style via group definition.

I define two groups with custom access right in ir.model.access.csv :

id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink

access_model_a,access_model_a,model_a,group_manager,1,1,1,1

access_model_b,access_model_b,model_dieu_b,group_manager,1,1,1,1

access_model_c,access_model_c,model_c,group_manager,1,1,1,1

remote_model_a,Remote model a,model_a,group_user,1,0,0,0

remote_model_b,Remote model b,model_b,group_user,1,0,0,0

remote_model_c,Remote model c,model_c,group_user,1,0,0,0

My security.xml in the Security folder like this:

<odoo>   

    <record model="ir.module.category" id="model_category">

        <field name="name">Test Security</field>

        <field name="description">Test access right to custom model</field>

        <field name="sequence">81</field>

    </record>

    <record id="group_manager" model="res.groups">

        <field name="name">Manager</field>

        <field name="category_id" ref="model_category"/>

    </record>   

    <record id="group_user" model="res.groups">

        <field name="name">User</field>

        <field name="category_id" ref="model_category"/>

        <field name="implied_ids" eval="[(4, ref('group_manager'))]"/>

    </record>    

</odoo>

So, for using the dropdown style of access right to the custom model, need to add the field:

    <field name="implied_ids" eval="[(4, ref('group_manager'))]"/>

When adding the user name to 'group_user' via choosing 'User' in the dropdown style. It will add the user name in group_user.
But it also adds the user name to 'group_manager' too and applies the access right rule of group_manager for the user, instead of using the access right rule of group_user. 

That is my issue. So how to solve it by using the dropdown style?

Please help!

Thank you!