odoo: printing qweb report using wizard - python-2.7

Question

i have two reports cout_materiel_facture_detail_report.xml (detailed report) and cout_materiel_facture_report.xml (simple report) and have a wizard where the user inputs some data and chooses whether he/she wants to print the simple report or the detailed one. Here is the wizard's class:
class CoutMaterielFactureWizard(models.TransientModel):
_name = 'gc.cout_materiel_facture_wizard'
directeur_parc_id = fields.Many2one('hr.employee', string='Directeur Parc')
procedure = fields.Char(string='Procedure')
version = fields.Char(string='Verion')
date_realisation = fields.Date(string='Date realisation')
# is_landscape = fields.Boolean(string='Mode paysage?')
is_detail = fields.Boolean(string='Version simplifiee?')
#api.multi
def do_toggle_print(self):
cout_materiel = self.env['gc.cout_materiel'].browse(self._context.get('active_id', False))
cout_materiel.write({
'directeur_parc_id': self.directeur_parc_id.id
})
# Print the simple report
if not self.is_detail:
return {
'type': 'ir.actions.report.xml',
'name': 'gestion_cout.cout_materiel_facture_report_template',
'report_name': 'gestion_cout.cout_materiel_facture_report_template',
}
# Print the detailed report
else:
sql = "SELECT SUM(h_sup)+SUM(h_exp),SUM(h_im),count(*),SUM(total), famille FROM gc_cout_materiel_line where " \
"cout_materiel_id =%s group by famille "
self.env.cr.execute(sql, (cout_materiel.id,))
results = self.env.cr.fetchall()
if len(results) > 0:
line_ids = []
for nbht, nbhim, qte, prix_total, famille in results:
line_ids.append((0, 0, {
'famille': famille,
'type': 'VA',
'qte': qte,
'nbr_heures': nbht,
'nbr_heures_im': nbhim,
'nbr_jours': 28,
'prix_unitaire': 'VA',
'prix_total': prix_total,
}))
self.env['gc.cout_materiel_facture_temp'].create({
'chantier_name': cout_materiel.chantier_id.name,
'mois_name': cout_materiel.mois_id.name,
'num_annexe': cout_materiel.num_annexe,
'expediteur': cout_materiel.expediteur,
'destinateur': cout_materiel.destinateur,
'application_date': cout_materiel.application_date,
'date_realisation': self.date_realisation,
'directeur_parc_name': self.directeur_parc_id.name,
'procedure': self.procedure,
'version': self.version,
'prix_total_global': cout_materiel.total_global,
'line_ids': line_ids,
})
return {
'type': 'ir.actions.report.xml',
'name': 'gestion_cout.gc_cout_materiel_facture_detail_report_template',
'report_name': 'gestion_cout.gc_cout_materiel_facture_detail_report_template',
}
But i get this error after i hit the print button
I checked out the database and found both reports are present there.
Any help? please!!

Answer 1

Finally i managed to solve my problem!!
Here is what i did:
I created a method in the wizard model which returns a list of objects that i whant to print and linked the wizard to the qweb report.
Then i called the method from the qweb report using object.my_mehtod() in a t-foreach loop, where object represents the wizard.
With this way i am able to create complex reports and print them easily. One can use this method to get data from several tables and organize the data and retur them as a list.
I hope that it will help someone.
Best regards!!