[ADD] support update mode where we never try to create records

[hbrunn]

this is meant to allow loading noupdate="1" records and being sure nothing bad happens when doing this.

Currently, if you load_data with records that were noupdate, forcecreate=False and deleted, odoo will generate a create, which fails if there are any required fields that are not included in the xml

cc @pedrobaeza

[StefanRijnhart]

Can you introduce a new value for mode, so that no confusion arises with the original modes from the Odoo method (I'm thinking init_no_create). In fact, I am already confused. What happens if you want to update a record that has the noupdate flag in ir_model_data? It looks like the record does not get updated. Maybe you need to pass mode='init' to the upstream method.

Can you move that phrase 'will not try to create a record with partial data in case the record was removed in the database.' to the upper method docstring, so that it shows up in the documentation?

[hbrunn]

if you update a record with the noupdate flag, it depends on the mode what happens: nothing in mode=update, an update in init. Or a create if the record doesn't exist, and that's what breaks here.

[MiquelRForgeFlow]

LGTM 👍

[pedrobaeza]

Change this to init. Please rebase also on latest branch for seeing Travis result.

[hbrunn]

good one. done

[StefanRijnhart]

Thanks for the updates!

[StefanRijnhart]

CI is still broken. I'm restarting Travis.

[StefanRijnhart]

Looks like adding lxml to requirements.txt might help fix Travis.

[StefanRijnhart]

Thanks, now green! @pedrobaeza are you happy as well?

[pedrobaeza]

Yes, sorry, I'm in the travel back with limited access. Holger, squash at your taste and please merge.

[StefanRijnhart]

Thanks @pedrobaeza, have a good journey!