From 4a1d96cf1160b5869545dfe5d6c07bf1a8755efd Mon Sep 17 00:00:00 2001
From: Guido Longoni <guido.longoni@briq.it>
Date: Wed, 5 Jul 2023 20:28:41 +0200
Subject: [PATCH] opzione reset_on_excluded ora attiva e funzionante

---
 django/contatti_app/drilldown_autocomplete.py | 15 +++--
 django/static/admin/js/autocomplete.js        | 59 +++++++++++++------
 2 files changed, 52 insertions(+), 22 deletions(-)

diff --git a/django/contatti_app/drilldown_autocomplete.py b/django/contatti_app/drilldown_autocomplete.py
index e39c257..991adb3 100644
--- a/django/contatti_app/drilldown_autocomplete.py
+++ b/django/contatti_app/drilldown_autocomplete.py
@@ -134,11 +134,16 @@ class DrillDownAutocompleteModelAdmin(admin.options.BaseModelAdmin):
         if "widget" not in kwargs:
             daf = self.get_drilldown_autocomplete_fields(request)
             if db_field.name in daf:
-                attrs = {}
-                attrs["data-linkedfields"] = json.dumps(
-                    list(daf[db_field.name]['linked'].keys()))
-                if daf[db_field.name].get('included_only', False):
-                    attrs['data-included_only'] = 1
+                attrs = {'data-drilldown_enabled': 1}
+                if 'linked' in daf[db_field.name]:
+                    attrs["data-linkedfields"] = json.dumps(
+                        list(daf[db_field.name]['linked'].keys()))
+                    if daf[db_field.name].get('included_only', False):
+                        attrs['data-included_only'] = 1
+                    else:
+                        if 'reset_on_excluded' in daf[db_field.name]:
+                            attrs['data-reset_on_excluded'] = json.dumps(
+                                list(daf[db_field.name]['reset_on_excluded']))
                 kwargs["widget"] = DrillDownAutocompleteSelect(
                     db_field, self.admin_site, attrs=attrs, using=db
                 )
diff --git a/django/static/admin/js/autocomplete.js b/django/static/admin/js/autocomplete.js
index 1e37f2a..2680046 100644
--- a/django/static/admin/js/autocomplete.js
+++ b/django/static/admin/js/autocomplete.js
@@ -15,31 +15,33 @@
                         model_name: element.dataset.modelName,
                         field_name: field_name
                     };
-                    if (element.dataset.hasOwnProperty('linkedfields')) {
+                    if (element.dataset.hasOwnProperty('drilldown_enabled')) {
                         out.drilldown = 1;
-                        var linkedfields = JSON.parse(element.dataset.linkedfields)
-                        var linkedfields_obj = {};
-                        var some_obj = false;
-                        for (var i in linkedfields) {
-                            if (linkedfields.hasOwnProperty(i)) {
-                                var remote_field = linkedfields[i];
-                                var field_id = element.dataset.select2Id;
-                                var remote_id = field_id.slice(0, field_id.length - field_name.length) + remote_field;
-                                var value = document.querySelectorAll('[data-select2-id=' + remote_id + '].admin-autocomplete')[0].value;
-                                if (value !== '') {
-                                    linkedfields_obj[remote_field] = value;
-                                    some_obj = true;
+                        if (element.dataset.hasOwnProperty('linkedfields')) {
+                            var linkedfields = JSON.parse(element.dataset.linkedfields)
+                            var linkedfields_obj = {};
+                            var some_obj = false;
+                            for (var i in linkedfields) {
+                                if (linkedfields.hasOwnProperty(i)) {
+                                    var remote_field = linkedfields[i];
+                                    var field_id = element.dataset.select2Id;
+                                    var remote_id = field_id.slice(0, field_id.length - field_name.length) + remote_field;
+                                    var value = document.querySelectorAll('[data-select2-id=' + remote_id + '].admin-autocomplete')[0].value;
+                                    if (value !== '') {
+                                        linkedfields_obj[remote_field] = value;
+                                        some_obj = true;
+                                    }
                                 }
                             }
-                        }
-                        if (some_obj) {
-                            out['linkedfields'] = JSON.stringify(linkedfields_obj);
+                            if (some_obj) {
+                                out['linkedfields'] = JSON.stringify(linkedfields_obj);
+                            }
                         }
                     }
                     return out
                 }
             };
-            if (element.dataset.hasOwnProperty('linkedfields')) {
+            if (element.dataset.hasOwnProperty('drilldown_enabled')) {
                 select2_config.templateResult = (item,container)=>{
                     var styleClass = '';
 
@@ -62,6 +64,29 @@
                 }
             }
             $(element).select2(select2_config);
+            if (element.dataset.hasOwnProperty('reset_on_excluded')) {
+                $(element).on('select2:select', ev=>{
+                    var data = $(element).select2('data');
+                    if (Array.isArray(data) && data.length > 0) {
+                        var ddok = data[0].ddok;
+                        if (!(ddok ?? true)) {
+                            var reset_on_excluded = JSON.parse(element.dataset.reset_on_excluded);
+                            for (var i in reset_on_excluded) {
+                                if (reset_on_excluded.hasOwnProperty(i)) {
+                                    var field_name = element.dataset.fieldName
+                                    var remote_field = reset_on_excluded[i];
+                                    var field_id = element.dataset.select2Id;
+                                    var remote_id = field_id.slice(0, field_id.length - field_name.length) + remote_field;
+                                    var remote_element = document.querySelectorAll('[data-select2-id=' + remote_id + '].admin-autocomplete')[0];
+                                    $(remote_element).val(null).trigger("change");
+                                }
+                            }
+                        }
+                    }
+                }
+                );
+            }
+
         });
         return this;
     }