[IMP] website_sale_delivery: show delivery methods link if module ins…

…talled

addons/website_sale_delivery/models/__init__.py

@@ -4,3 +4,4 @@
 from . import res_country
 from . import delivery
 from . import sale_order
+from . import website_config_settings

addons/website_sale_delivery/models/website_config_settings.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, models, fields
+
+
+class WebsiteConfigSettings(models.TransientModel):
+    _inherit = 'website.config.settings'
+
+    is_installed_easypost = fields.Boolean()
+
+    @api.multi
+    def get_values(self, fields):
+        return {
+            'is_installed_easypost': self.env['ir.module.module'].search([('name', '=', 'delivery_easypost'), ('state', '=', 'installed')]).id
+        }

addons/website_sale_delivery/views/website_config_settings_views.xml

@@ -12,6 +12,14 @@
                     </div>
                 </div>
             </div>
+            <div id="website_delivery_easypost" position="after">
+                <field name="is_installed_easypost" invisible="1"/>
+                <div class="content-group">
+                    <div class="mt16" attrs="{'invisible': ['|', ('module_delivery_easypost', '=', False), ('is_installed_easypost','=',False)]}">
+                        <button name="%(delivery.action_delivery_carrier_form)d" icon="fa-arrow-right" type="action" string="Easypost Delivery Methods" class="btn-link" context="{'search_default_delivery_type': 'easypost'}"/>
+                    </div>
+                </div>
+            </div>
         </field>
     </record>
 </odoo>