In back-end views, the attributes
- attrs
- states
- invisible
- readonly
- required
are transfered to the `modifiers` attribute.
The web client only uses this `modifiers` attribute.
Hence, the above attributes which gets transfered
to the `modifiers` attribute can be safely removed
from the architecture sent to the web client.
In addition, in case the modifiers were all falsy
e.g. `{'invisible': False, 'readonly': False, 'required': False}`
`simplify_modifiers` was simplifying these modifiers to
`{}` and `modifiers="{}"` was set on the node,
which is a bit useless and waste transferred bytes.
This allows to gain some KB for all `get_views` calls.
For instance, with only `account_accountant` installed,
`get_views` of `account.move` goes
from 228.01 KB to 208.78,
therefore sparing 10% of KB for each calls.
An example using the `res.partner` form:
Before:
```xml
<field name="is_company" invisible="1" on_change="1" modifiers="{"invisible": true}"/>
<field name="commercial_partner_id" invisible="1" on_change="1" modifiers="{"invisible": true, "readonly": true}" can_create="true" can_write="true"/>
<field name="active" invisible="1" on_change="1" modifiers="{"invisible": true}"/>
<field name="company_id" invisible="1" on_change="1" modifiers="{"invisible": true}" can_create="true" can_write="true"/>
<field name="country_code" invisible="1" modifiers="{"invisible": true, "readonly": true}"/>
<field name="company_type" widget="radio" options="{'horizontal': true}" on_change="1" modifiers="{}"/>
```
After:
```xml
<field name="is_company" on_change="1" modifiers="{"invisible": true}"/>
<field name="commercial_partner_id" on_change="1" modifiers="{"invisible": true, "readonly": true}" can_create="true" can_write="true"/>
<field name="active" on_change="1" modifiers="{"invisible": true}"/>
<field name="company_id" on_change="1" modifiers="{"invisible": true}" can_create="true" can_write="true"/>
<field name="country_code" modifiers="{"invisible": true, "readonly": true}"/>
<field name="company_type" widget="radio" options="{'horizontal': true}" on_change="1"/>
```
closesodoo/odoo#99619
Signed-off-by: Denis Ledoux (dle) <dle@odoo.com>
Denis Ledoux
443b1e1576