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1828 Zobrazenia

Hi at all,

I need to override the function BarcordeReader ,cause i need to intercept what the barcode read and cancel the caracter "." if it exsist.

I tried to override the js original fuctionts for understand where i can modify the info ,and give me info about the barcode read, but this code give me error.

odoo.define('ro_pos_custom.BarcodeReader', function (require) {
"use strict";

var core = require('web.core');
const BarcodeReader = require('point_of_sale.BarcodeReader');
console.log("entro qui");
// this module interfaces with the barcode reader. It assumes the barcode reader
// is set-up to act like a keyboard. Use connect() and disconnect() to activate
// and deactivate the barcode reader. Use set_action_callbacks to tell it
// what to do when it reads a barcode.
const BarcodeReaderRo = (BarcodeReader) =>
class extends BarcodeReader{

set_barcode_parser: function (barcode_parser) {
this.barcode_parser = barcode_parser;
console.log("dato?",this.barcode_parser);
},

// when a barcode is scanned and parsed, the callback corresponding
// to its type is called with the parsed_barcode as a parameter.
// (parsed_barcode is the result of parse_barcode(barcode))
//
// callbacks is a Map of 'actions' : callback(parsed_barcode)
// that sets the callback for each action. if a callback for the
// specified action already exists, it is replaced.
//
// possible actions include :
// 'product' | 'cashier' | 'client' | 'discount'
set_action_callback: function (name, callback) {
console.log(name,callback);
if (this.action_callbacks[name]) {
this.action_callbacks[name].add(callback);
} else {
this.action_callbacks[name] = new Set([callback]);
}
},

remove_action_callback: function(name, callback) {
if (!callback) {
delete this.action_callbacks[name];
return;
}
const callbacks = this.action_callbacks[name];
if (callbacks) {
callbacks.delete(callback);
if (callbacks.size === 0) {
delete this.action_callbacks[name];
}
}
},

/**
* Allow setting of exclusive callbacks. If there are exclusive callbacks,
* these callbacks are called neglecting the regular callbacks. This is
* useful for rendered Components that wants to take exclusive access
* to the barcode reader.
*
* @param {String} name
* @param {Function} callback function that takes parsed barcode
*/
set_exclusive_callback: function (name, callback) {
if (this.exclusive_callbacks[name]) {
this.exclusive_callbacks[name].add(callback);
} else {
this.exclusive_callbacks[name] = new Set([callback]);
}
},

remove_exclusive_callback: function (name, callback) {
if (!callback) {
delete this.exclusive_callbacks[name];
return;
}
const callbacks = this.exclusive_callbacks[name];
if (callbacks) {
callbacks.delete(callback);
if (callbacks.size === 0) {
delete this.exclusive_callbacks[name];
}
}
},

scan: function (code) {
if (!code) return;

const callbacks = Object.keys(this.exclusive_callbacks).length
? this.exclusive_callbacks
: this.action_callbacks;

const parsed_result = this.barcode_parser.parse_barcode(code);
if (callbacks[parsed_result.type]) {
[...callbacks[parsed_result.type]].map((cb) => cb(parsed_result));
} else if (callbacks.error) {
[...callbacks.error].map((cb) => cb(parsed_result));
} else {
console.warn('Ignored Barcode Scan:', parsed_result);
}

},

// the barcode scanner will listen on the hw_proxy/scanner interface for
// scan events until disconnect_from_proxy is called
connect_to_proxy: function () {
var self = this;
this.remote_scanning = true;
if (this.remote_active >= 1) {
return;
}
this.remote_active = 1;

function waitforbarcode(){
return self.proxy.connection.rpc('/hw_proxy/scanner',{},{shadow: true, timeout:7500})
.then(function (barcode) {
console.log("codice?",barcode);
if (!self.remote_scanning) {
self.remote_active = 0;
return;
}
self.scan(barcode);
waitforbarcode();
},
function () {
if (!self.remote_scanning) {
self.remote_active = 0;
return;
}
waitforbarcode();
});
}
waitforbarcode();
},

// the barcode scanner will stop listening on the hw_proxy/scanner remote interface
disconnect_from_proxy: function () {
this.remote_scanning = false;
},
};

return BarcodeReader;

});

Thanks for help


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Autor Best Answer

Thanks for the answer.


So i tried to put your js into a file and i had a little modify for debug info.Than the js have this name of file "barcode_reader_ro.js" and it's now this:


odoo.define('ro_pos_custom.CustomBarcodeReader', function (require) {

"use strict";


var BarcodeReader = require('point_of_sale.BarcodeReader');

    console.log("entro qui");


    const CustomBarcodeReader = BarcodeReader.extend({

        scan: function (code) {

            console.log("scan function",code);

            // Manipulate the barcode data before processing

            code = code.replace('.', ''); // Remove the character '.'


            // Call the original scan function

            this._super.apply(this, arguments);

        },

    });


    return CustomBarcodeReader;

});

After modify my pos_templates.xml for add the new js file:

 template id="pos_extend_assets" inherit_id="point_of_sale.assets">
xpath expr="." position="inside">
            link rel="stylesheet" href="/ro_pos_custom/static/src/css/product_discount.css"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_payment_button.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_print_custom.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_systray_button.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/models.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_notes.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_sconto_righe.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/prezzo_art.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_print_digi.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_crea_csv.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/pos_arrotonda_subtotale.js"/>
            script type="text/javascript" src="/ro_pos_custom/static/src/js/barcode_reader_ro.js"/>
       /xpath>
    /template>       

So i added this pos_templates.xml into data list in my __manifest__.py :

'data': [
'security/ir.model.access.csv',
'views/pos_templates.xml',
'views/pos_roconfigure.xml',
'views/pos_maga_discount.xml',
'views/pos_digi.xml',
'wizards/wizard_confirm_refund.xml',
'wizards/wizard_confirm_refund_normal.xml',
'views/user_utenteQuadroCode.xml',
'views/pos_payment_to_show.xml',
],


.Then when i start the odoo POS, i see into chrome console the first console.log i'd added ("sono qui")  ,but when i tried to scan a product i not see the other console.log i'd added ...and i think all works but like not have the override..


I had wrong something?


Thanks for help


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Best Answer

Hello Mauro,

To achieve this, you can create a custom module that extends the existing BarcodeReader and overrides the scan function.

Here's an example of how you can achieve this:

odoo.define('your_module.CustomBarcodeReader', function (require) {
    "use strict";

    var BarcodeReader = require('point_of_sale.BarcodeReader');

    const CustomBarcodeReader = BarcodeReader.extend({
        scan: function (code) {
            // Manipulate the barcode data before processing
            code = code.replace('.', ''); // Remove the character '.'

            // Call the original scan function
            this._super.apply(this, arguments);
        },
    });

    return CustomBarcodeReader;
});

In this example, CustomBarcodeReader is created by extending the original BarcodeReader. The scan function is overridden to manipulate the barcode data (remove the '.' character in this case) before calling the original implementation using this._super.apply(this, arguments);.

Make sure to replace 'your_module' with the actual name of your custom module. Also, ensure that this module is loaded after the original point_of_sale.BarcodeReader module to override its behavior.

In your manifest file (__manifest__.py), make sure to include your custom module as a dependency


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