How to convert Odoo 8 module to Odoo 9

Question

I have recently installed Odoo 9.0. However, I need a module that is only available for Odoo 8.0.

I was wondering if it is possible to apply minor changes to this module to make it compatible for Odoo 9.0? The new module is just a calendar which is simply just using web interface: Link to the module

Here is the error when instaling

Odoo Server Error
Traceback (most recent call last):
  File "/odoo/odoo-server/openerp/http.py", line 643, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/odoo/odoo-server/openerp/http.py", line 680, in dispatch
    result = self._call_function(**self.params)
  File "/odoo/odoo-server/openerp/http.py", line 316, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/odoo/odoo-server/openerp/service/model.py", line 118, in wrapper
    return f(dbname, *args, **kwargs)
  File "/odoo/odoo-server/openerp/http.py", line 309, in checked_call
    result = self.endpoint(*a, **kw)
  File "/odoo/odoo-server/openerp/http.py", line 959, in __call__
    return self.method(*args, **kw)
  File "/odoo/odoo-server/openerp/http.py", line 509, in response_wrap
    response = f(*args, **kw)
  File "/odoo/odoo-server/addons/web/controllers/main.py", line 896, in call_button
    action = self._call_kw(model, method, args, {})
  File "/odoo/odoo-server/addons/web/controllers/main.py", line 884, in _call_kw
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
  File "/odoo/odoo-server/openerp/api.py", line 250, in wrapper
    return old_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/addons/base/module/module.py", line 459, in button_immediate_install
    return self._button_immediate_function(cr, uid, ids, self.button_install, context=context)
  File "/odoo/odoo-server/openerp/api.py", line 250, in wrapper
    return old_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/addons/base/module/module.py", line 533, in _button_immediate_function
    registry = openerp.modules.registry.RegistryManager.new(cr.dbname, update_module=True)
  File "/odoo/odoo-server/openerp/modules/registry.py", line 386, in new
    openerp.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/odoo/odoo-server/openerp/modules/loading.py", line 338, in load_modules
    loaded_modules, update_module)
  File "/odoo/odoo-server/openerp/modules/loading.py", line 237, in load_marked_modules
    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)
  File "/odoo/odoo-server/openerp/modules/loading.py", line 156, in load_module_graph
    _load_data(cr, module_name, idref, mode, kind='data')
  File "/odoo/odoo-server/openerp/modules/loading.py", line 98, in _load_data
    tools.convert_file(cr, module_name, filename, idref, mode, noupdate, kind, report)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 851, in convert_file
    convert_xml_import(cr, module, fp, idref, mode, noupdate, report)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 938, in convert_xml_import
    obj.parse(doc.getroot(), mode=mode)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 801, in parse
    self.parse(rec, mode)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 804, in parse
    self._tags[rec.tag](self.cr, rec, de, mode=mode)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 777, in _tag_template
    return self._tag_record(cr, record, data_node)
  File "/odoo/odoo-server/openerp/tools/convert.py", line 708, in _tag_record
    id = self.pool['ir.model.data']._update(cr, self.uid, rec_model, self.module, res, rec_id or False, not self.isnoupdate(data_node), noupdate=self.isnoupdate(data_node), mode=self.mode, context=rec_context )
  File "/odoo/odoo-server/openerp/api.py", line 250, in wrapper
    return old_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/addons/base/ir/ir_model.py", line 1142, in _update
    res_id = model_obj.create(cr, uid, values, context=context)
  File "/odoo/odoo-server/openerp/api.py", line 250, in wrapper
    return old_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/addons/base/ir/ir_ui_view.py", line 351, in create
    context=context)
  File "/odoo/odoo-server/openerp/api.py", line 250, in wrapper
    return old_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/api.py", line 354, in old_api
    result = method(recs, *args, **kwargs)
  File "/odoo/odoo-server/openerp/models.py", line 4151, in create
    record = self.browse(self._create(old_vals))
  File "/odoo/odoo-server/openerp/api.py", line 248, in wrapper
    return new_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/api.py", line 490, in new_api
    result = method(self._model, cr, uid, *args, **old_kwargs)
  File "/odoo/odoo-server/openerp/models.py", line 4342, in _create
    recs._validate_fields(vals)
  File "/odoo/odoo-server/openerp/api.py", line 248, in wrapper
    return new_api(self, *args, **kwargs)
  File "/odoo/odoo-server/openerp/models.py", line 1271, in _validate_fields
    raise ValidationError('\n'.join(errors))
ParseError: "Invalid view definition

Error details:
Element '<xpath expr="//script[@src='/web/static/src/js/formats.js']">' cannot be located in parent view

Error context:
View `persian_calendar`
[view_id: 853, xml_id: n/a, model: n/a, parent_id: 159]
None" while parsing None:6, near
<data inherit_id="web.assets_backend">

            <xpath expr="//script[@src='/web/static/src/js/formats.js']" position="replace">
                <script type="text/javascript" src="/persian_calendar/static/src/js/formats.js"/>
            </xpath>
        </data>

Odoo 8 and 9 uses the same api, if the module is in Api 8 it should work in 9, thing is, if that module uses api 7 (works in 8), it wont work in 9. What you should do is changue the api 7 functions / fields to 8. — dccdany
And, to be honest, it may even works with old api. The only thing that can break is, if it inherits from a base module that odoo changed for odoo 9, you may have to change that function. — dccdany
@dccdany Then how come this module cannot be installed on Odoo 9? It might be Odoo 7 module, as opposed to the specification. In that case, should I ask another question of how to convert from O7 to O9? — orezvani
@dccdany here is the error that I get when installing this module. — orezvani
Theres a xml in the module thats searching for a xpath xpression that isnt in the module that it inherits (the one with id "web.assets_backend") — dccdany

Majikat Majikat · Accepted Answer · 2017-01-15T08:47:53

What you are facing is a particular case. A lot of things have changed in the front-end of Odoo 9 (like using less). There are no definite way to upgrade a module from v8 to v9. Here are some recommandations though :

use the new API, as the old API is definitely gone in Odoo v10. This will make upgrading to it later a lot easier.
a lot of things have changed in the front-end, most of your template/view inheritance will need a refresh. The fastest way is still to try to install it and resolve issues as they arise
model logic did not change a lot. The ones who got big revamps are accounting in Odoo 9 and manufacturing in Odoo 10. Most of the logics that you use now will still work

Concerning your issue, it may not be easy. I upgraded a module displaying custom dashboards I created with Highcharts on Odoo 9 and a lot of steps were required to make it work.

How to convert Odoo 8 module to Odoo 9

3 Answers