Hi Jignesh, thank you for your attention on this issue!
The fields that you demonstrate are regular many2many fields. The problem does not occur in that case. The problem only occurs with fields.related of type 'many2many'. I have created a module that demonstrates the problem, and I will attach a video with spoken word to talk you through the problem. You can get the module here to see for yourself: http://bazaar.launchpad.net/~stefan-therp/junk/lp915975-fields-related- many2many/files Cheers, Stefan. ** Attachment added: "Demonstration video" https://bugs.launchpad.net/openobject-server/+bug/915975/+attachment/2806108/+files/out-2.ogv -- You received this bug notification because you are a member of OpenERP Indian Team, which is subscribed to OpenERP Server. https://bugs.launchpad.net/bugs/915975 Title: Fields.related writes to the target model with source id Status in OpenERP Server: Incomplete Bug description: Hi, Problem: ------------ A fields.related with type='many2many' tries to write to the target model but with id of the source model in case the original value of the many2many field on the target resource is empty. Analysis: ----------- Take for example a column definition in osv class 'source.model': 'related_field_id': fields.related('target_model_id', 'target_field', type='many2many'), A value is written to this field. The current value on the target model is empty. The method related._fnct_write()[1] from osv/fields.py loops over ('target_model_id', 'target_field'). The second iteration is supposed to retrieve the resource id of the target model. It does so by setting 't_id' to t_data['id'] in three different places (!) in the loop, where 't_data' is the browse object of the target resource. It still fails to do so in the circumstances described above. Although the code is a bit difficult to read, you can check that *if* the current value of the field (t_data[self.arg[i]])[2] is empty *and* type is in ('one2many', 'many2one')[3], t_id does not get set to t_data['id'] but keeps its original value instead. This original value is the resource id of the source model set in the first iteration of the loop. Result: --------- If a resource exists with this id, the new value get silently written to this wrong resource. If such a resource does not exist, the following error occurs: "'One of the records you are trying to modify has already been deleted". This problem occurs on openerp-server/6.0 (rev. 3565). Trunk has not been tested, but the function in which the problem occurs has remained unchanged. [1] http://bazaar.launchpad.net/~openerp/openobject-server/6.0/view/head:/bin/osv/fields.py?start_revid=3566#L863 [2] http://bazaar.launchpad.net/~openerp/openobject-server/6.0/view/head:/bin/osv/fields.py?start_revid=3566#L874 [3] http://bazaar.launchpad.net/~openerp/openobject-server/6.0/view/head:/bin/osv/fields.py?start_revid=3566#L875 To manage notifications about this bug go to: https://bugs.launchpad.net/openobject-server/+bug/915975/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openerp-india Post to : [email protected] Unsubscribe : https://launchpad.net/~openerp-india More help : https://help.launchpad.net/ListHelp
