[IMP] Replace translate_doc method by t-lang attribute as this method is deprecated

now that we have a cleaner system to switch translation when calling a qweb template.
      Update the docstring too.

  Replace :
    <t t-foreach="doc_ids" t-as="doc_id">
    <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', account.report_invoice_document')"/>
    </t>
  By :
    <t t-foreach="doc_ids" t-as="doc_id">
    <t t-call="'account.report_invoice_document" t-lang="doc_id.partner_id.lang"/>µ
    </t>

  Impacted modules : acccount, purchase, report_intrastat.

addons/account/views/report_invoice.xml

@@ -3,6 +3,7 @@
 <data>
 <template id="report_invoice_document">
     <t t-call="report.external_layout">
+        <t t-set="o" t-value="o.with_context({'lang':o.partner_id.lang})" />
         <div class="page">
             <div class="row">
                 <div class="col-xs-5 col-xs-offset-7">
@@ -152,8 +153,8 @@
 
 <template id="report_invoice">
     <t t-call="report.html_container">
-        <t t-foreach="doc_ids" t-as="doc_id">
-            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'account.report_invoice_document')"/>
+        <t t-foreach="docs" t-as="o">
+            <t t-call="account.report_invoice_document" t-lang="o.partner_id.lang"/>
         </t>
     </t>
 </template>
@@ -169,8 +170,8 @@
 
 <template id="account_invoice_report_duplicate_main">
     <t t-call="report.html_container">
-        <t t-foreach="doc_ids" t-as="doc_id">
-            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'account.account_invoice_report_duplicate')"/>
+        <t t-foreach="docs" t-as="o">
+            <t t-call="account.account_invoice_report_duplicate" t-lang="o.partner_id.lang"/>
         </t>
     </t>
 </template>

addons/point_of_sale/report/pos_invoice.py

@@ -15,7 +15,6 @@ class PosInvoiceReport(osv.AbstractModel):
         posorder_obj = self.pool['pos.order']
         report = report_obj._get_report_from_name(cr, uid, 'account.report_invoice')
         selected_orders = posorder_obj.browse(cr, uid, ids, context=context)
-
         ids_to_print = []
         invoiced_posorders_ids = []
         for order in selected_orders:

addons/purchase/views/report_purchaseorder.xml

@@ -3,6 +3,7 @@
 <data>
 <template id="report_purchaseorder_document">
     <t t-call="report.external_layout">
+        <t t-set="o" t-value="o.with_context({'lang':o.partner_id.lang})"/>
         <div class="page">
             <div class="oe_structure"/>
             <div class="row">
@@ -121,8 +122,8 @@
 
 <template id="report_purchaseorder">
     <t t-call="report.html_container">
-        <t t-foreach="doc_ids" t-as="doc_id">
-            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'purchase.report_purchaseorder_document')"/>
+        <t t-foreach="docs" t-as="o">
+            <t t-call="purchase.report_purchaseorder_document" t-lang="o.partner_id.lang"/>
         </t>
     </t>
 </template>

addons/purchase/views/report_purchasequotation.xml

@@ -3,6 +3,7 @@
 <data>
 <template id="report_purchasequotation_document">
     <t t-call="report.external_layout">
+        <t t-set="o" t-value="o.with_context({'lang':o.partner_id.lang})"/>
         <div class="page">
             <div class="oe_structure"/>
 
@@ -61,8 +62,8 @@
 
 <template id="report_purchasequotation">
     <t t-call="report.html_container">
-        <t t-foreach="doc_ids" t-as="doc_id">
-            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'purchase.report_purchasequotation_document')"/>
+        <t t-foreach="docs" t-as="o">
+            <t t-call="purchase.report_purchasequotation_document" t-lang="o.partner_id.lang"/>
         </t>
     </t>
 </template>

addons/report/models/report.py

@@ -70,30 +70,6 @@ class Report(osv.Model):
     # Extension of ir_ui_view.render with arguments frequently used in reports
     #--------------------------------------------------------------------------
 
-    def translate_doc(self, cr, uid, doc_id, model, lang_field, template, values, context=None):
-        """Helper used when a report should be translated into a specific lang.
-
-        <t t-foreach="doc_ids" t-as="doc_id">
-        <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', account.report_invoice_document')"/>
-        </t>
-
-        :param doc_id: id of the record to translate
-        :param model: model of the record to translate
-        :param lang_field': field of the record containing the lang
-        :param template: name of the template to translate into the lang_field
-        """
-        ctx = context.copy()
-        doc = self.pool[model].browse(cr, uid, doc_id, context=ctx)
-        qcontext = values.copy()
-        # Do not force-translate if we chose to display the report in a specific lang
-        if ctx.get('translatable') is True:
-            qcontext['o'] = doc
-        else:
-            # Reach the lang we want to translate the doc into
-            ctx['lang'] = eval('doc.%s' % lang_field, {'doc': doc})
-            qcontext['o'] = self.pool[model].browse(cr, uid, doc_id, context=ctx)
-        return self.pool['ir.ui.view'].render(cr, uid, template, qcontext, context=ctx)
-
     def render(self, cr, uid, ids, template, values=None, context=None):
         """Allow to render a QWeb template python-side. This function returns the 'ir.ui.view'
         render but embellish it with some variables/methods used in reports.
@@ -111,9 +87,6 @@ class Report(osv.Model):
 
         view_obj = self.pool['ir.ui.view']
 
-        def translate_doc(doc_id, model, lang_field, template):
-            return self.translate_doc(cr, uid, doc_id, model, lang_field, template, values, context=context)
-
         user = self.pool['res.users'].browse(cr, uid, uid)
         website = None
         if request and hasattr(request, 'website'):
@@ -124,7 +97,6 @@ class Report(osv.Model):
         values.update(
             time=time,
             context_timestamp=lambda t: fields.datetime.context_timestamp(cr, uid, t, context),
-            translate_doc=translate_doc,
             editable=True,
             user=user,
             res_company=user.company_id,

addons/report_intrastat/views/report_intrastatinvoice.xml

@@ -3,6 +3,7 @@
 <data>
 <template id="report_intrastatinvoice_document">
     <t t-call="report.external_layout">
+        <t t-set="o" t-value="o.with_context({'lang':o.partner_id.lang})"/>
         <div class="page">
             <div class="row">
                 <div class="col-xs-5 col-xs-offset-7">
@@ -143,8 +144,8 @@
 
 <template id="report_intrastatinvoice">
     <t t-call="report.html_container">
-        <t t-foreach="doc_ids" t-as="doc_id">
-            <t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'report_intrastat.report_intrastatinvoice_document')"/>
+        <t t-foreach="docs" t-as="o">
+            <t t-call="report_intrastat.report_intrastatinvoice_document" t-lang="o.partner_id.lang"/>
         </t>
     </t>
 </template>

addons/website_report/report.py

@@ -8,20 +8,6 @@ from openerp.osv import osv
 class Report(osv.Model):
     _inherit = 'report'
 
-    def translate_doc(self, cr, uid, doc_id, model, lang_field, template, values, context=None):
-        if request and hasattr(request, 'website'):
-            if request.website is not None:
-                v = request.website.get_template(template)
-                request.session['report_view_ids'].append({
-                    'name': v.name,
-                    'id': v.id,
-                    'xml_id': v.xml_id,
-                    'inherit_id': v.inherit_id.id,
-                    'header': False,
-                    'active': v.active,
-                })
-        return super(Report, self).translate_doc(cr, uid, doc_id, model, lang_field, template, values, context=context)
-
     def render(self, cr, uid, ids, template, values=None, context=None):
         if request and hasattr(request, 'website'):
             if request.website is not None: