Different types of inheritance in Odoo | Types of inheritance | Delegation inheritance

[@jamesT008]

Very good explanation

[@SamirSELLAMI]

Thanks for this informative practical explanation. Plz, I have a question regarding methods when using inheritance. As I understood from odoo docs when using the “inherits” (delegation or multiples inheritance) methods of the base model will not be inherited right ? Now when using classical inheritance “inherit” with new _name metadata, should we necessarily use “Super” to inherit methods of the base model or they will be automatically inherited, which mean they gonna work in views (ex. a method that compute a field in the base model)?

[@Weblearns]

if you will call super statement in your method, It means it will auto call parent method or which you already inherited the same model's method. Again its not necessary to call super statement until unless you want to execute parent method's code :)

[@SamirSELLAMI]

@@Weblearns very clear explanation, thanks again !

[@tborth]

Thanks brother

[@abdoulayedabacoulibaly7059]

Hi, I try to inherit the qty_delivered field in sale to the invoice but when I make a sale, the qty_delivered field does not automatically retrieve the value but offers me a drop-down list. I need a little help

[@Weblearns]

Hi can you past here code instead of Float as compute field you didn't use correct?

[@abdoulayedabacoulibaly7059]

@@Weblearns here is my code class Invoice(models.Model): _inherit = 'account.invoice.line' qty_delivered = fields.Float('sale.order', 'Quantite Delivrer')

[@Weblearns]

Try this field qty_delivered = fields.Float(compute='get_qty', string='Quantite Delivrer') def get_qty(self): for line in self: total_qty = 0.0 for sol in line.sale_line_ids: total_qty += sol.qty_delivered line.qty_delivered = total_qty

[@abdoulayedabacoulibaly7059]

@@Weblearns that works thanks can I contact you sometimes when I have a little problem and how?

[@Weblearns]

Sure anytime you can contact me.

[@decajohn6786]

I am using inherit option 2 above. when I remove inherit, then upgrade the module, it caused error..KeyError: 'model name', eventhough I have removed the table in psql.

[@Weblearns]

Well odoo stores models in registry table, if you manually remove from psql definitely Odoo raise such error.

[@decajohn6786]

@@Weblearns you're right. we should remove it also from ir_model. thanks for the insight bro! I've learned so much from you :)

[@decajohn6786]

@WebLearns I have tried using second type of inherit (started from minute 18:57), but it raised error : psycopg2.errors.UndefinedColumn: column "teacher_id" referenced in foreign key constraint does not exist.

[@Weblearns]

@@decajohn6786 Seems its ID issue not related inheritance issue.

[@decajohn6786]

@@Weblearns what do you mean? how to figure it out?

[@raafatalnakar]

Where can we find the project file

[@Weblearns]

Question not clear, which file you need ?

[@raafatalnakar]

@@Weblearns school student project

[@Weblearns]

@@raafatalnakar You mean which I am working on ? If yes you can use below link github.com/er-harsh-dhaduk/odoo-training

[@raafatalnakar]

@@Weblearns Yes thank you

[@tborth]

What need of @api.model

[@Weblearns]

api.model is decorator and it is a record-style method where self is a recordset, but its contents is not relevant, only the model or single recordset Best example is while you override the create method you need this decorator as its only model level used in case you forgot to add this decorator to any method then it will auto convert into api.multi decorator, and for create method it will convert into api.model_create_multi this decorator. Hope it will help you to understand this decorator.

[@tborth]

@@Weblearns can you please example me different b/w if write method have @api.model and if don't have @api.model what will happen with the self , please help

[@tborth]

@@Weblearns can you please elaborate model level

[@Weblearns]

@@tborth Yes please stay tuned will have decorator part too here. will explain in detail.

[@tborth]

@@Weblearns thanks brother

[@kenzasouabni]

how "Tango' appears , it appear in mine " module.model.id "

[@Weblearns]

Hi Kenza, Pls elaborate more with your doubt. Thank you,