[IMP] osv: improved user-friendly error message for violation of NOT_NULL constraints
[IMP] osv: improved user-friendly error message for violation of NOT_NULL constraints
ovnicraft/openerp-server,gisce/openobject-server,splbio/openobject-server,gisce/openobject-server,xrg/openerp-server,splbio/openobject-server,ovnicraft/openerp-server,splbio/openobject-server,MarkusTeufelberger/openobject-server,xrg/openerp-server,vnc-biz/openerp-server,MarkusTeufelberger/openobject-server,MarkusTeufelberger/openobject-server,vnc-biz/openerp-server,gisce/openobject-server