Fix admin site - Custom admin URL (#5766)

* Update config template file

* Add entry to docs

* Add INVENTREE_ADMIN_ENABLED to settings.py

* Add helper functions for improving admin links

* Refactor existing admin links

* remove debug statements

* Fix custom admin URL

* Expand documentation

* Fix URL

* Improve wording in config_template.yaml

* Extend admin_url tag

- Allow lookup without pk
- Handle case where pk not found

InvenTree/stock/templates/stock/item_base.html

@@ -25,10 +25,9 @@
 
 {% block actions %}
 
-{% if user.is_staff and roles.stock.change %}
-{% url 'admin:stock_stockitem_change' item.pk as url %}
+{% admin_url user "stock.stockitem" item.pk as url %}
 {% include "admin_button.html" with url=url %}
-{% endif %}
+
 {% mixin_available "locate" as locate_available %}
 {% if plugins_enabled and locate_available %}
 <button id='locate-item-button' title='{% trans "Locate stock item" %}' class='btn btn-outline-secondary' typy='button'>

InvenTree/stock/templates/stock/location.html

@@ -28,10 +28,11 @@
 {% block actions %}
 
 <!-- Admin view -->
-{% if location and user.is_staff and roles.stock_location.change %}
-{% url 'admin:stock_stocklocation_change' location.pk as url %}
+{% if location %}
+{% admin_url user "stock.stocklocation" location.pk as url %}
 {% include "admin_button.html" with url=url %}
 {% endif %}
+
 {% settings_value "STOCKTAKE_ENABLE" as stocktake_enable %}
 {% if stocktake_enable and roles.stocktake.add %}
 <button type='button' class='btn btn-outline-secondary' id='location-stocktake' title='{% trans "Perform stocktake for this stock location" %}'>