Add documentation for error logging and command-line interface

docs/admin/admin.md

@@ -25,6 +25,9 @@ An adminstation panel will be presented as shown below:
 {% include 'img.html' %}
 {% endwith %}
 
+!!! info "Admin URL"
+    To directly access the admin iterface, append /admin/ to the InvenTree site URL - e.g. http://localhost:8000/admin/
+
 ### View Database Objects
 
 Database objects can be listed and filtered directly. The image below shows an example of displaying existing part categories.

docs/admin/logs.md

@@ -0,0 +1,25 @@
+---
+title: Admin Shell
+---
+
+## Error Logs
+
+Any critical server error logs are recorded to the database, and can be viewed by staff users using the admin interface.
+
+In the admin interface, select the "Errors" view:
+
+{% with id="admin_error_link", url="admin/admin_errors_link.png", description="Admin errors" %}
+{% include 'img.html' %}
+{% endwith %}
+
+!!! note "URL"
+    Alternatively, navigate to the error list view at /admin/error_report/error/
+
+A list of error logs is presented.
+
+{% with id="admin_error_logs", url="admin/admin_errors.png", description="Error logs" %}
+{% include 'img.html' %}
+{% endwith %}
+
+!!! note "Deleting Logs"
+    Error logs should be deleted periodically

docs/admin/shell.md

@@ -0,0 +1,24 @@
+---
+title: Admin Shell
+---
+
+## Python Shell
+
+A Python shell interface is provided at /admin/shell/.
+
+This interface allows advanced users direct access to the underlying database objects using Python. 
+
+!!! warning "Danger"
+    The scripting shell interface should only ever be used by advanced users. It requires intimate knowledge of the underlying InvenTree code, and improper use could easily result in corruption of data
+
+!!! warning "Seriously"
+    If you are not 100% sure of what you are doing, do not use the shell interface
+
+!!! info "Enabling Shell Mode"
+    The admin shell is (by default) only enabled when InvenTree is running in DEBUG mode
+
+The shell interface allows Python queries to be run by the admin user, as shown below:
+
+{% with id="admin_shell", url="admin/shell.png", description="Admin shell interface" %}
+{% include 'img.html' %}
+{% endwith %}

mkdocs.yml

@@ -73,6 +73,8 @@ nav:
     - User Permissions: admin/permissions.md
     - Export Data: admin/export.md
     - Import Data: admin/import.md
+    - Python Shell: admin/shell.md
+    - Error Logs: admin/logs.md
   - Extend:
     - API: extend/api.md
     - Python Interface: extend/python.md