add 'view in redner' button in form

models/redner_template.py

@@ -23,7 +23,7 @@
 from odoo import _, api, fields, models
 from odoo.exceptions import ValidationError
 
-from ..redner import Redner
+from ..redner import REDNER_API_PATH, Redner
 
 logger = logging.getLogger(__name__)
 
@@ -271,3 +271,22 @@
                     body_format=body_format,
                     version=fields.Datetime.to_string(fields.Datetime.now()),
                 )
+
+    def redner_url(self):
+        if self.redner_id is None:
+            return ""
+
+        return (
+            self.redner.server_url.removesuffix(REDNER_API_PATH)
+            + "template/"
+            + self.redner.account
+            + "/"
+            + self.redner_id
+        )
+
+    def view_in_redner(self):
+        return {
+            "type": "ir.actions.act_url",
+            "url": self.redner_url(),
+            "target": "new",
+        }

views/redner_template.xml

@@ -32,6 +32,16 @@
         <field name="model">redner.template</field>
         <field name="arch" type="xml">
             <form>
+                <header>
+                    <field name="redner_id" invisible="1" />
+                    <button
+                        name="view_in_redner"
+                        type="object"
+                        string="View in Redner"
+                        class="oe_highlight"
+                        invisible="redner_id == False"
+                    />
+                </header>
                 <sheet>
                     <div class="oe_button_box" name="button_box">
                         <button