added system parameter for max number of objects merged

Author: danila12

deltatech_merge/README.rst

@@ -20,7 +20,8 @@ Merge Objects
 |badge1| |badge2| |badge3| 
 
 Features:
- -
+ - Merge objects
+ - System parameter deltatech_merge.merge_objects_max_number can be used to define max number of objects to merge
 
 **Table of contents**
 

deltatech_merge/__manifest__.py

@@ -5,13 +5,13 @@
 {
     "name": "Merge Objects",
     "summary": "Base module for merging",
-    "version": "15.0.1.0.0",
+    "version": "15.0.1.0.1",
     "author": "Terrabit, Dorin Hongu",
     "website": "https://www.terrabit.ro",
     "category": "Tools",
     "depends": ["base"],
     "license": "LGPL-3",
-    "data": ["security/ir.model.access.csv"],
+    "data": ["security/ir.model.access.csv", "data/ir_config_parameter.xml"],
     "images": ["static/description/main_screenshot.png"],
     "development_status": "Beta",
     "maintainers": ["dhongu"],

deltatech_merge/data/ir_config_parameter.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record model="ir.config_parameter" id="merge_objects_max_number" forcecreate="False">
+        <field name="key">deltatech_merge.merge_objects_max_number</field>
+        <field name="value">3</field>
+    </record>
+</odoo>

deltatech_merge/readme/DESCRIPTION.rst

@@ -1,2 +1,3 @@
 Features:
- -
+ - Merge objects
+ - System parameter deltatech_merge.merge_objects_max_number can be used to define max number of objects to merge

deltatech_merge/static/description/index.html

@@ -371,7 +371,8 @@ <h1 class="title">Merge Objects</h1>
 <dl class="docutils">
 <dt>Features:</dt>
 <dd><ul class="first last simple">
-<li></li>
+<li>Merge objects</li>
+<li>System parameter deltatech_merge.merge_objects_max_number can be used to define max number of objects to merge</li>
 </ul>
 </dd>
 </dl>

deltatech_merge/wizard/merge_object.py

@@ -306,13 +306,21 @@ def _merge(self, object_ids, dst_object=None, extra_checks=True):
         object_ids = Object.browse(object_ids).exists()
         if len(object_ids) < 2:
             return
-
-        if len(object_ids) > 3:
+        params = self.env["ir.config_parameter"].sudo()
+        try:
+            max_no_objects = int(params.get_param("deltatech_merge.merge_objects_max_number", default=3))
+        except Exception:
+            raise UserError(
+                _("Invalid system parameter value (deltatech_merge.merge_objects_max_number): %s")
+                % params.get_param("deltatech_merge.merge_objects_max_number")
+            )
+        if len(object_ids) > max_no_objects:
             raise UserError(
                 _(
-                    "For safety reasons, you cannot merge more than 3 objects together."
+                    "For safety reasons, you cannot merge more than %s objects together."
                     " You can re-open the wizard several times if needed."
                 )
+                % max_no_objects
             )
 
         # check if the list of objects to merge contains child/parent relation