How can I add only one record into a form in odoo

How can I add only one record into a form or treeview in odoo? After adding the first record, create option should be disabled.

Solution

Well I'll teach you :)

First you must make a record as follows:

<data noupdate="1">
    <record id="my_record_01" model="my.model">
        <field name="field_name">value</field>
    </record>
</data>

This will insert record in the database and noupdate means that this section wont change if you will update your module later. During development use 0 and after that set 1.

To disable write for tree view you can use

<tree create="false" delete="false">
</tree>

For form

<form edit="false" create="false" delete="false">
</form>

create="false" will disable(actually hide) create button, and at this time you can set edit="true" and record will be editable, delete="false" will disable delete option from 'more' dropdown Note that tree has not attribute edit. Also I recommend to create security rules security/ir.model.access.csv and set there write read delete and create rights