After spending lots of time for struggling with exports, imports, updates, overwrites for a long time, this is how i manage to fix all empty/duplicated/not updated translation problems:

1) Stop odoo

2) Update all po files (in source folders)

3) Delete all translations from database (DELETE FROM ir_translation WHERE lang = 'tr_TR')

4) Run odoo with load language option. This will reload all po files from source folders back to database  (./odoo.py --stop-after-init --load-language=tr_TR -c odoo.conf)

5) Start odoo

And all translations are updated to latest...

Hi,

for version6 (perhaps 7 too), to have the translation loaded for you modules with inheritance, you have to add in __openerp__.py line section :

'sequence': 150,

in fact, translations are read by sequence and by alphabetic order (lower to greater). Default value for sequence parameter (which you should not have add) is 100. And if you have a module beginning by a letter < first letter of module inherited, your translation will be read first and your modifications will not be used. Restart openerp server to valid modification naturally.

Bye

AFAIK, there was a design decision to be made: either to allow users to change translations from the GUI, or to always override user's translations with .po files.

Currently the tradeoff is made in favour of being able to manually change translations from the GUI.

See the corresponding bug report here: bugs.launchpad.net/openobject-server/+bug/1166776

If you don't need the ability to change translations from the GUI (Settings => Translations => Application Terms => Translated Terms), then you could apply the fixes proposed in the bug report and its comments.

Another solution is to manually re-import the changed .po file from Settings => Translations => Import/Export => Import Translation. In some cases the records imported this way may fail to have 'module' value set correctly (it may be empty), which prevents the translation from working properly. This can be fixed by setting the right module value from within PgAdmin.

I get the same issue. All my updates in po files are not updated even if I restart the server with option -u all.

Did anyone find a solution?

Although this is not a solution to your problem, a have chosen a different approach. I have a folder with all the .po files in my language. I have written a script to load all the po files in that folder. Here is the script:

#!/bin/bash

shopt -s nullglob
# Path and the list of files to import. 
FILES=/opt/openerp/mk_MK/*-mk.po
# Database in which to import the files.
DATABASE=openerp_db
# Language you are importing.
LANG=mk_MK

for f in $FILES
do
  echo "Processing $f file..."
  # take action on each file. $f store current file name
./openerp-server -d $DATABASE -l $LANG --i18n-import=$f --i18n-overwrite
done

I'm running my testing server on ubuntu 12.10

For me just do like this and it works fine:
Settings / Languages / Manage Languages
In the language list click "Update" the current language does not update the new text.

try to remove all tranlations like this

delete from public.ir_model_fields where model like 'your_module'

then update your module in odoo

Language Translation in OpenERP- Zesty Beanz Technologies Blog

I removed the rights for the specific module (which translation should be updated) from user, logoff/log in to check if the module removed succefully. 

After, I gave the same module again to the same user, logoff/login. 

Finally, I discovered the module rights just given above is coming with the updated translation. 

Hello,

I've the same problems, Transalation are finished in .po file and imported in openerp but all fielsd and words are not transale untill now!

any helps please

 I am new to odoo and facing the exact same issue. I updated the .po files and I don't know to force odoo to ignore the cached translation/ir_translation and use the ones in po files. I will appreciate your kind help on this as I need to deploy it in many places so I can't just translate it from GUI all from the beginning for every deployment. Thanks!

Several times i recognised to update base module before seeing the results of your modified .po files

1. Go to Settings / Installed Modules
2. In search field enter "base" as a filter
3. Open "base" module in form view
4. Click on upgrade

This should load and update all .po files, because all addons have base as minimum requirement (dependency).