Odoo10转Odoo11模块遇web.DataModel缺失，求代码转换方案

Hey there, let's work through this migration problem! Odoo 11 completely phased out the old web.DataModel class (which you’re using as Model in your code) and shifted to a cleaner RPC-based approach for calling backend methods. Here’s how to update your code to fit Odoo 11’s frontend structure:

Core Change to Understand #

Instead of instantiating a Model and using its .call() method, you’ll use Odoo’s built-in rpc.query() function (or this._rpc() if you’re inside an Odoo widget/component that inherits from base classes). Just make sure the web.rpc module is loaded as a dependency in your JS file.

Converted Odoo 11 Compatible Code #

Here’s your updated code with the new RPC syntax:

// First, ensure you've imported the rpc module at the top of your JS file
// Example:
// odoo.define('your_module.pos_coupon', function (require) {
//     "use strict";
//     var rpc = require('web.rpc');
//     // ... other required imports ...

var temp = { 
    'partner_id': client['id'], 
    'coupon_pos': cp.code, 
};

// Replace the old Model().call() with rpc.query()
rpc.query({
    model: 'partner.coupon.pos',
    method: 'update_history',
    args: ['', temp]  // Keep your original arguments intact here
}).then(function (result) { 
    var applied = self.pos.applied_coupon;
    var already_used = false;
    for (var j in applied) {
        if (applied[j]['partner_id'][0] == client['id'] && applied[j]['coupon_pos'] == order.coupon_status['code']) {
            applied[j]['number_pos'] += 1;
            already_used = true;
            break;
        }
    }
    if (!already_used) {
        var temp = { 
            'partner_id': [client['id'], client['name']], 
            'number_pos': 1, 
            'coupon_pos': order.coupon_status['code'] 
        };
        self.pos.applied_coupon.push(temp);
    }
}).catch(function (error) {
    // Added error handling (best practice for Odoo 11+)
    console.error('Failed to update coupon history:', error);
});

self.gui.close_popup();

Quick Additional Tips #

1. Dependency Declaration: Double-check that your JS module lists web.rpc as a dependency – without this, the rpc object won’t be available.
2. Promise Syntax: Odoo 11 uses ES6 promises, so we use .then() instead of .done() (.done() might still work for backward compatibility, but .then() is the standard now).
3. POS Widget Context: If this code lives inside a POS widget (like a popup handler), you can also use this._rpc() instead of rpc.query() if your widget inherits from AbstractWidget or similar base classes – the arguments stay identical.

内容的提问来源于stack exchange，提问作者Kyaw Zin Oo