flectra/addons/website_sale/models/ir_model_fields.py

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# -*- coding: utf-8 -*-
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# Part of Odoo, Flectra. See LICENSE file for full copyright and licensing details.
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from flectra import api, models
# !! Attention, this is a hack of a hack, do not try this at home !!
# This is done because website_sale defines the website_description
# field which is also defined by website_quote, but these two modules
# are independent of each other, the part of the ORM that generates
# xmlids does not support this case therefore it only creates a single
# pair of xmlids for whichever module is installed first, therefore
# when uninstalling any of the two modules the website_descripion field
# will be deleted from the db and the other module won't be able to
# use this field, resulting in a crash and data-loss.
# See opw-776464 for more details.
#
# This is hotfixed by overriding the unlink method so as to not delete
# the website_description field if website_sale is uninstalled, it's
# an ugly hack but it works and big changes can't be done to the ORM
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# in stable versions, Flectra v12+ will properly fix this
class IrModelFields(models.Model):
_inherit = "ir.model.fields"
@api.multi
def unlink(self):
# Prevent the deletion of the field "website_description"
self = self.filtered(
lambda rec: not (
rec.model in ('product.product', 'product.template') and
rec.name == 'website_description'
)
)
return super(IrModelFields, self).unlink()