View Inheritance in Odoo 16
- 1. View Inheritance in Odoo 16
- 2. ● Views are what defined how records should be displayed to the end users. They are usually specified in XML. ● We Know Inheritance is the process of adding new features to an existing model. ● View Inheritance can be defined as the process of modifying an existing view. This may be adding a new field to an existing view, adding button, adding attribute to an existing field etc.
- 3. Lets see how to add a new field date of birth inside the contacts form.
- 4. Here inside the contact form i have added a new field date of birth. so let’s see how we can achieve this. For that open pycharm. so here i have a custom module named partner_dob.
- 5. ● Inside the models i have a new python file res_partner in which i have inherited the model res.partner and added a new field. so for adding a new field first you have to inherit the corresponding model and then add that particular field.
- 6. ● We can inherit an existing model by using the keyword _inherit = "Class_Name". So by inheriting and adding this field, the newly created dob field will be added to the existing database table of res.partner. ● Here we have used _inherit=”res.partner”. And added a field dob.
- 7. • After that inside the views directory create a new XML file for inheriting the contact form. So here i have created an xml file for inheriting the view. And inside this create a new record inside the model ir.ui.view .
- 8. ● Since we have to inherit an existing record inside the model ir.ui.view, we have to specify the model as ir.ui.view . ● We have to set an external id for the newly creating record as well. ● Then add the value for the attribute name. so this will be the name for this inherited view. ● Then specify the model as res.partner since we are inheriting an existing view for the model res.partner. ● Then next field is inherit_id where we have to specify the external id of the view which we are inheriting.
- 9. This inherit_id can be obtained from the user interface. For that go to the contact form since we are inheriting the contact form.
- 10. ● If you want to inherit and modify any other view then open the particular view and after enabling the debug mode go to the developer tools. ● Here we have an option edit view form. ● Click on that so that from here we can get the external id of this particular form view. ● So we have to specify this external id inside the inherit_id attribute. So the external id for the contact form is base.view_partner_form . ● I have specified the same external id for the attribute inherit_id.
- 11. ● Then we have to specify the field which we have to add inside this existing view. For that specify the path using the tag <xpath> ● So I have added a new field after the field vat which is already present in this form. ● So here we can see that the tax id field name is vat so i specified this particular field and gave the position as after. ● So that the new field dob will be added after this vat field.
- 12. The <xpath> attribute ‘position’ has different values: ● inside - appends <xpath> body to the end of the matched element ● replace - replaces the matched element with the <xpath> body ● before - inserts the <xpath> body as a sibling before the matched element ● after - inserts the <xpaths> body as a sibling after the matched element ● attributes - alters the attributes of the matched element using the special attribute elements in the <xpath> body
- 13. ● After specifying this record we have to add it inside the manifest. ● So i have added the xml file inside the manifest and then you have to restart the service and go to apps and you have to search for your custom app.
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