[FIX] snailmail_account: Pass pricing to stamps

Up until now, we'd charge the user in actual curency but we changed the
pricing to 1 creidt=1 letter. in forder to help the user we will change
the name credits to stamps. As 1 letter = 1 stamp.

addons/snailmail_account/i18n/snailmail_account.pot

@@ -4,10 +4,10 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: Odoo Server saas~11.5\n"
+"Project-Id-Version: Odoo Server 12.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2018-09-21 13:17+0000\n"
-"PO-Revision-Date: 2018-09-21 13:17+0000\n"
+"POT-Creation-Date: 2018-11-05 09:29+0000\n"
+"PO-Revision-Date: 2018-11-05 09:29+0000\n"
 "Last-Translator: <>\n"
 "Language-Team: \n"
 "MIME-Version: 1.0\n"
@@ -40,11 +40,6 @@ msgstr ""
 msgid "Config Settings"
 msgstr ""
 
-#. module: snailmail_account
-#: model:ir.model.fields,field_description:snailmail_account.field_account_invoice_send__snailmail_cost
-msgid "Credits"
-msgstr ""
-
 #. module: snailmail_account
 #: model:ir.model.fields,field_description:snailmail_account.field_account_invoice_send__currency_id
 msgid "Currency"
@@ -81,3 +76,7 @@ msgstr ""
 msgid "Send by Post"
 msgstr ""
 
+#. module: snailmail_account
+#: model:ir.model.fields,field_description:snailmail_account.field_account_invoice_send__snailmail_cost
+msgid "Stamp(s)"
+msgstr ""

addons/snailmail_account/wizard/account_invoice_send.py

@@ -11,17 +11,10 @@ class AccountInvoiceSend(models.TransientModel):
 
     partner_id = fields.Many2one('res.partner', compute='_get_partner', string='Partner')
     snailmail_is_letter = fields.Boolean('Send by Post', help='Allows to send the document by snail mail (coventional posting delivery service)', default=lambda self: self.env.user.company_id.invoice_is_snailmail)
-    snailmail_cost = fields.Float(string='Credits', compute='_snailmail_estimate', store=True, readonly=True)
+    snailmail_cost = fields.Float(string='Stamp(s)', compute='_snailmail_estimate', store=True, readonly=True)
     currency_id = fields.Many2one('res.currency', compute='_get_invoice_currency', string="Currency")
     letter_ids = fields.Many2many('snailmail.letter', 'snailmail_letter_account_invoice_send_rel', ondelete='cascade')
 
-    @api.multi
-    @api.onchange('invoice_ids')
-    def _get_invoice_currency(self):
-        for wizard in self:
-            if wizard.invoice_ids:
-                wizard.currency_id = wizard.invoice_ids.mapped('currency_id')[0].id
-
     @api.multi
     @api.onchange('invoice_ids')
     def _get_partner(self):

addons/snailmail_account/wizard/account_invoice_send_views.xml

@@ -9,14 +9,16 @@
                 <xpath expr="//div[@name='option_email']" position='before'>
                     <div name="option_letter">
                         <field name="letter_ids" invisible="1"/>
-                        <field name="currency_id" invisible="1"/>
                         <div name="option" class="text-left d-inline-block">
                             <field name="snailmail_is_letter" />
                             <b><label for="snailmail_is_letter"/></b>
                         </div>
                         <div class="text-left d-inline-block mr8" name='cost' attrs="{'invisible': [('snailmail_is_letter','=', False)]}">
                             <b>(
-                                <field name="snailmail_cost" class="mr4" widget='monetary' options="{'currency_field': 'currency_id'}"/>
+                                <span>
+                                    <field name="snailmail_cost" options="{'digits':[0,0]}" class="mr4"/>
+                                    <label for="snailmail_cost" class="mr4"/>
+                                </span>
                                 <i class="fa fa-info-circle" role="img" aria-label="Warning" title="
                                 The letter will be sent using the IAP service from Odoo.&#10;Make sure you have enough credits on your account or proceed to a recharge.&#10;The price is estimated based on 1 page per document.
                                 "/>