Expose some timeseries from TimescaleDB over Django

Update the CommandStation-EX tag as well

monitoring/README.md

@@ -0,0 +1,129 @@
+# Asset telemetry monitoring
+
+[!CAUTION]
+This is a PoC, not suitable for real world due to lack of any authentication and security
+
+## Pre-requisites
+
+- Python 3.12
+- Podman (or Docker)
+
+## Architecture
+
+The `dispatcher.py` script collects data (`cab` commands) from a CommandStation and sends it a MQTT broker. 
+
+The command being monitored is the `<l cab reg speedByte functMap>` one returned by the `<t cab speed dir>` throttle command. See the [DCC-EX command reference](https://dcc-ex.com/reference/software/command-summary-consolidated.html#t-cab-speed-dir-set-cab-loco-speed).
+
+`mosquitto` is the MQTT broker.
+
+The `handler.py` script subscribes to the MQTT broker and saves relevant data to the Timescale database.
+
+Data is finally save into a Timescale hypertable.
+
+## How to run
+
+### Deploy Timescale
+
+```bash
+$ podman run -d -p 5432:5432 -v $(pwd)/data:/var/lib/postgresql/data -e "POSTGRES_USER=dccmonitor" -e "POSTGRES_PASSWORD=dccmonitor" --name timescale timescale/timescaledb:latest-pg17
+```
+[!IMPORTANT]
+A volume should be created for persistent data
+
+Tables and hypertables are automatically created by the `handler.py` script
+
+### Deploy Mosquitto
+
+```bash
+$ podman run --userns=keep-id -d -p 1883:1883 -v $(pwd)/config/mosquitto.conf:/mosquitto/config/mosquitto.conf --name mosquitto eclipse-mosquitto:2.0
+```
+
+### Run the dispatcher and the handler
+
+```bash
+$ python dispatcher.py
+```
+
+```bash
+$ python handler.py
+```
+
+## Debug data in Timescale
+
+### Create a 10 secs aggregated data table
+
+```sql
+CREATE MATERIALIZED VIEW telemetry_10secs
+WITH (timescaledb.continuous) AS
+SELECT 
+    time_bucket('10 seconds', timestamp) AS bucket,
+    cab,
+    ROUND(CAST(AVG(speed) AS NUMERIC), 1) AS avg_speed,
+    MIN(speed) AS min_speed,
+    MAX(speed) AS max_speed
+FROM telemetry
+GROUP BY bucket, cab;
+```
+
+and set the update policy:
+
+```sql
+SELECT add_continuous_aggregate_policy(
+    'telemetry_10secs',
+    start_offset => INTERVAL '1 hour',  -- Go back 1 hour for updates
+    end_offset   => INTERVAL '1 minute', -- Keep the latest 5 min fresh
+    schedule_interval => INTERVAL '1 minute' -- Run every minute
+);
+
+```
+
+### Running statistics from 10 seconds table
+
+```sql
+WITH speed_durations AS (
+    SELECT 
+        cab,
+        avg_speed,
+        max_speed,
+        bucket AS start_time,
+        LEAD(bucket) OVER (
+            PARTITION BY cab ORDER BY bucket
+        ) AS end_time,
+        LEAD(bucket) OVER (PARTITION BY cab ORDER BY bucket) - bucket AS duration
+    FROM telemetry_10secs
+)
+SELECT * FROM speed_durations WHERE end_time IS NOT NULL;
+```
+
+and filtered by `cab` number, via a function
+
+```sql
+CREATE FUNCTION get_speed_durations(cab_id INT) 
+RETURNS TABLE (
+    cab INT, 
+    speed DOUBLE PRECISION, 
+    dir TEXT, 
+    start_time TIMESTAMPTZ, 
+    end_time TIMESTAMPTZ, 
+    duration INTERVAL
+) 
+AS $$
+WITH speed_durations AS (
+    SELECT 
+        cab,
+        avg_speed,
+        max_speed,
+        bucket AS start_time,
+        LEAD(bucket) OVER (
+            PARTITION BY cab ORDER BY bucket
+        ) AS end_time,
+        LEAD(bucket) OVER (PARTITION BY cab ORDER BY bucket) - bucket AS duration
+    FROM telemetry_10secs
+)
+SELECT * FROM speed_durations WHERE end_time IS NOT NULL AND cab = cab_id;
+$$ LANGUAGE sql;
+
+-- Refresh data
+CALL refresh_continuous_aggregate('telemetry_10secs', NULL, NULL);
+SELECT * FROM get_speed_durations(1);
+```

monitoring/compose.yml

@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+# vim: tabstop=2 shiftwidth=2 softtabstop=2
+networks:
+  net:
+
+volumes:
+  pgdata:
+  staticdata:
+
+x-op-service-default: &service_default
+  restart: always  # unless-stopped
+  init: true
+
+services:
+  timescale:
+    <<: *service_default
+    image: timescale/timescaledb:latest-pg17
+    ports:
+        - "${CUSTOM_DOCKER_IP:-0.0.0.0}:5432:5432"
+    environment:
+      POSTGRES_USER: "dccmonitor"
+      POSTGRES_PASSWORD: "dccmonitor"
+    volumes:
+      - "pgdata:/var/lib/postgresql/data"
+    networks:
+      - net
+
+  broker:
+    <<: *service_default
+    image: eclipse-mosquitto:2.0
+    ports:
+        - "${CUSTOM_DOCKER_IP:-0.0.0.0}:1883:1883"
+    volumes:
+      - "./config/mosquitto.conf:/mosquitto/config/mosquitto.conf:ro"
+    networks:
+      - net

monitoring/config/mosquitto.conf

@@ -0,0 +1,2 @@
+allow_anonymous true
+listener 1883

monitoring/dispatcher.py

@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+
+import os
+import time
+import json
+import socket
+import logging
+import paho.mqtt.client as mqtt
+
+# FIXME: create a configuration
+# TCP Socket Configuration
+TCP_HOST = "192.168.10.110"  # Replace with your TCP server IP
+TCP_PORT = 2560              # Replace with your TCP server port
+
+# FIXME: create a configuration
+# MQTT Broker Configuration
+MQTT_BROKER = "localhost"
+MQTT_PORT = 1883
+MQTT_TOPIC = "telemetry/commandstation"
+
+# Connect to MQTT Broker
+mqtt_client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2)
+
+
+# Connect function with automatic reconnection
+def connect_mqtt():
+    while True:
+        try:
+            mqtt_client.connect(MQTT_BROKER, MQTT_PORT, keepalive=60)
+            mqtt_client.loop_start()  # Start background loop
+            logging.info("Connected to MQTT broker!")
+            return
+        except Exception as e:
+            logging.info(f"Connection failed: {e}. Retrying in 5 seconds...")
+            time.sleep(5)  # Wait before Retrying
+
+
+# Ensure connection before publishing
+def safe_publish(topic, message):
+    if not mqtt_client.is_connected():
+        print("MQTT Disconnected! Reconnecting...")
+        connect_mqtt()  # Reconnect if disconnected
+
+    result = mqtt_client.publish(topic, message, qos=1)
+    result.wait_for_publish()  # Ensure message is published
+    logging.debug(f"Published: {message}")
+
+
+def process_message(message):
+    """Parses the '<l cab speed dir>' format and converts it to JSON."""
+    if not message.startswith("<l"):
+        return None
+
+    parts = message.strip().split()  # Split by spaces
+    if len(parts) != 5:
+        logging.debug(f"Invalid speed command: {message}")
+        return None
+
+    _, _cab, _, _speed, _ = parts  # Ignore the first `<t`
+    cab = int(_cab)
+    speed = int(_speed)
+    if speed > 1 and speed < 128:
+        direction = "r"
+        speed = speed - 1
+    elif speed > 129 and speed < 256:
+        direction = "f"
+        speed = speed - 129
+    else:
+        speed = 0
+        direction = "n"
+
+    try:
+        json_data = {
+            "cab": cab,
+            "speed": speed,
+            "dir": direction
+        }
+        return json_data
+    except ValueError as e:
+        logging.error(f"Error parsing message: {e}")
+        return None
+
+
+def start_tcp_listener():
+    """Listens for incoming TCP messages and publishes them to MQTT."""
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+        sock.connect((TCP_HOST, TCP_PORT))
+        logging.info(
+            f"Connected to TCP server at {TCP_HOST}:{TCP_PORT}"
+        )
+
+        while True:
+            data = sock.recv(1024).decode("utf-8")  # Read a chunk of data
+            if not data:
+                break
+
+            lines = data.strip().split("\n")  # Handle multiple lines
+            for line in lines:
+                json_data = process_message(line)
+                if json_data:
+                    safe_publish(MQTT_TOPIC, json.dumps(json_data))
+
+
+# Start the listener
+if __name__ == "__main__":
+    logging.basicConfig(level=os.getenv("DCC_LOGLEVEL", "INFO").upper())
+    start_tcp_listener()

monitoring/handler.py

@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+
+import os
+import json
+import logging
+import datetime
+import psycopg2
+import paho.mqtt.client as mqtt
+
+# MQTT Broker Configuration
+MQTT_BROKER = "localhost"
+MQTT_PORT = 1883
+MQTT_TOPIC = "telemetry/commandstation"
+
+# TimescaleDB Configuration
+DB_HOST = "localhost"
+DB_NAME = "dccmonitor"
+DB_USER = "dccmonitor"
+DB_PASSWORD = "dccmonitor"
+
+
+# The callback for when the client receives a CONNACK response from the server.
+def on_connect(client, userdata, flags, reason_code, properties):
+    logging.info(f"Connected with result code {reason_code}")
+    # Subscribing in on_connect() means that if we lose the connection and
+    # reconnect then subscriptions will be renewed.
+    client.subscribe(MQTT_TOPIC)
+
+
+# MQTT Callback: When a new message arrives
+def on_message(client, userdata, msg):
+    try:
+        payload = json.loads(msg.payload.decode("utf-8"))
+        cab = payload["cab"]
+        speed = payload["speed"]
+        direction = payload["dir"]
+        timestamp = datetime.datetime.now(datetime.UTC)
+
+        # Insert into TimescaleDB
+        cur.execute(
+            "INSERT INTO telemetry (timestamp, cab, speed, dir) VALUES (%s, %s, %s, %s)",  # noqa: E501
+            (timestamp, cab, speed, direction),
+        )
+        conn.commit()
+        logging.debug(
+            f"Inserted: {timestamp} | Cab: {cab} | Speed: {speed} | Dir: {direction}"  # noqa: E501
+        )
+
+    except Exception as e:
+        logging.error(f"Error processing message: {e}")
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=os.getenv("DCC_LOGLEVEL", "INFO").upper())
+
+    # Connect to TimescaleDB
+    conn = psycopg2.connect(
+        dbname=DB_NAME, user=DB_USER, password=DB_PASSWORD, host=DB_HOST
+    )
+    cur = conn.cursor()
+
+    # Ensure hypertable exists
+    cur.execute("""
+        CREATE TABLE IF NOT EXISTS telemetry (
+            timestamp TIMESTAMPTZ NOT NULL DEFAULT now(),
+            cab INT NOT NULL,
+            speed DOUBLE PRECISION NOT NULL,
+            dir TEXT NOT NULL
+        );
+    """)
+    conn.commit()
+
+    # Convert table to hypertable if not already
+    cur.execute("SELECT EXISTS (SELECT 1 FROM timescaledb_information.hypertables WHERE hypertable_name = 'telemetry');")  # noqa: E501
+    if not cur.fetchone()[0]:
+        cur.execute("SELECT create_hypertable('telemetry', 'timestamp');")
+        conn.commit()
+
+    # Setup MQTT Client
+    client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2)
+    client.on_connect = on_connect
+    client.on_message = on_message
+    client.connect(MQTT_BROKER, MQTT_PORT)
+
+    # Start listening for messages
+    logging.info(f"Listening for MQTT messages on {MQTT_TOPIC}...")
+    client.loop_forever()

monitoring/requirements.txt

@@ -0,0 +1,2 @@
+paho-mqtt
+psycopg2-binary

ram/bookshelf/admin.py

@@ -8,10 +8,10 @@ from adminsortable2.admin import SortableAdminBase, SortableInlineAdminMixin
 from ram.admin import publish, unpublish
 from ram.utils import generate_csv
 from portal.utils import get_site_conf
+from repository.models import BookDocument, CatalogDocument
 from bookshelf.models import (
     BaseBookProperty,
     BaseBookImage,
-    BaseBookDocument,
     Book,
     Author,
     Publisher,
@@ -28,13 +28,6 @@ class BookImageInline(SortableInlineAdminMixin, admin.TabularInline):
     verbose_name = "Image"
 
 
-class BookDocInline(admin.TabularInline):
-    model = BaseBookDocument
-    min_num = 0
-    extra = 0
-    classes = ["collapse"]
-
-
 class BookPropertyInline(admin.TabularInline):
     model = BaseBookProperty
     min_num = 0
@@ -44,6 +37,17 @@ class BookPropertyInline(admin.TabularInline):
     verbose_name_plural = "Properties"
 
 
+class BookDocInline(admin.TabularInline):
+    model = BookDocument
+    min_num = 0
+    extra = 0
+    classes = ["collapse"]
+
+
+class CatalogDocInline(BookDocInline):
+    model = CatalogDocument
+
+
 @admin.register(Book)
 class BookAdmin(SortableAdminBase, admin.ModelAdmin):
     inlines = (
@@ -60,7 +64,7 @@ class BookAdmin(SortableAdminBase, admin.ModelAdmin):
         "published",
     )
     autocomplete_fields = ("authors", "publisher", "shop")
-    readonly_fields = ("creation_time", "updated_time")
+    readonly_fields = ("invoices", "creation_time", "updated_time")
     search_fields = ("title", "publisher__name", "authors__last_name")
     list_filter = ("publisher__name", "authors")
 
@@ -89,6 +93,7 @@ class BookAdmin(SortableAdminBase, admin.ModelAdmin):
                     "shop",
                     "purchase_date",
                     "price",
+                    "invoices",
                 )
             },
         ),
@@ -115,6 +120,17 @@ class BookAdmin(SortableAdminBase, admin.ModelAdmin):
         )
         return form
 
+    @admin.display(description="Invoices")
+    def invoices(self, obj):
+        if obj.invoice.exists():
+            html = "<br>".join(
+                "<a href=\"{}\" target=\"_blank\">{}</a>".format(
+                    i.file.url, i
+                ) for i in obj.invoice.all())
+        else:
+            html = "-"
+        return format_html(html)
+
     @admin.display(description="Publisher")
     def get_publisher(self, obj):
         return obj.publisher.name
@@ -200,7 +216,7 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
     inlines = (
         BookPropertyInline,
         BookImageInline,
-        BookDocInline,
+        CatalogDocInline,
     )
     list_display = (
         "__str__",
@@ -210,7 +226,7 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
         "published",
     )
     autocomplete_fields = ("manufacturer",)
-    readonly_fields = ("creation_time", "updated_time")
+    readonly_fields = ("invoices", "creation_time", "updated_time")
     search_fields = ("manufacturer__name", "years", "scales__scale")
     list_filter = ("manufacturer__name", "publication_year", "scales__scale")
 
@@ -236,8 +252,10 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
             "Purchase data",
             {
                 "fields": (
+                    "shop",
                     "purchase_date",
                     "price",
+                    "invoices",
                 )
             },
         ),
@@ -264,6 +282,17 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
         )
         return form
 
+    @admin.display(description="Invoices")
+    def invoices(self, obj):
+        if obj.invoice.exists():
+            html = "<br>".join(
+                "<a href=\"{}\" target=\"_blank\">{}</a>".format(
+                    i.file.url, i
+                ) for i in obj.invoice.all())
+        else:
+            html = "-"
+        return format_html(html)
+
     def download_csv(modeladmin, request, queryset):
         header = [
             "Catalog",

ram/bookshelf/migrations/0023_delete_basebookdocument.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.1.4 on 2025-02-09 13:47
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookshelf", "0022_basebook_shop"),
+        ("repository", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name="BaseBookDocument",
+        ),
+    ]

ram/bookshelf/models.py

@@ -6,7 +6,7 @@ from django.urls import reverse
 from django_countries.fields import CountryField
 
 from ram.utils import DeduplicatedStorage
-from ram.models import BaseModel, Image, Document, PropertyInstance
+from ram.models import BaseModel, Image, PropertyInstance
 from metadata.models import Scale, Manufacturer, Shop, Tag
 
 
@@ -89,21 +89,6 @@ class BaseBookImage(Image):
     )
 
 
-class BaseBookDocument(Document):
-    book = models.ForeignKey(
-        BaseBook, on_delete=models.CASCADE, related_name="document"
-    )
-
-    class Meta:
-        verbose_name_plural = "Documents"
-        constraints = [
-            models.UniqueConstraint(
-                fields=["book", "file"],
-                name="unique_book_file"
-            )
-        ]
-
-
 class BaseBookProperty(PropertyInstance):
     book = models.ForeignKey(
         BaseBook,

ram/metadata/admin.py

@@ -2,18 +2,16 @@ from django.contrib import admin
 from django.utils.html import format_html
 from adminsortable2.admin import SortableAdminMixin
 
-from ram.admin import publish, unpublish
+from repository.models import DecoderDocument
 from metadata.models import (
     Property,
     Decoder,
-    DecoderDocument,
     Scale,
     Shop,
     Manufacturer,
     Company,
     Tag,
     RollingStockType,
-    GenericDocument,
 )
 
 
@@ -88,51 +86,6 @@ class RollingStockTypeAdmin(SortableAdminMixin, admin.ModelAdmin):
     search_fields = ("type", "category")
 
 
-@admin.register(GenericDocument)
-class GenericDocumentAdmin(admin.ModelAdmin):
-    readonly_fields = ("size", "creation_time", "updated_time")
-    list_display = (
-        "__str__",
-        "description",
-        "private",
-        "size",
-        "download",
-    )
-    search_fields = (
-        "description",
-        "file",
-    )
-    fieldsets = (
-        (
-            None,
-            {
-                "fields": (
-                    "private",
-                    "description",
-                    "file",
-                    "size",
-                    "tags",
-                )
-            },
-        ),
-        (
-            "Notes",
-            {"classes": ("collapse",), "fields": ("notes",)},
-        ),
-        (
-            "Audit",
-            {
-                "classes": ("collapse",),
-                "fields": (
-                    "creation_time",
-                    "updated_time",
-                ),
-            },
-        ),
-    )
-    actions = [publish, unpublish]
-
-
 @admin.register(Shop)
 class ShopAdmin(admin.ModelAdmin):
     list_display = ("name", "on_line", "active")

ram/metadata/migrations/0024_remove_genericdocument_tags_delete_decoderdocument_and_more.py

@@ -0,0 +1,24 @@
+# Generated by Django 5.1.4 on 2025-02-09 13:47
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("metadata", "0023_shop"),
+        ("repository", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="genericdocument",
+            name="tags",
+        ),
+        migrations.DeleteModel(
+            name="DecoderDocument",
+        ),
+        migrations.DeleteModel(
+            name="GenericDocument",
+        ),
+    ]

ram/metadata/models.py

@@ -6,9 +6,6 @@ from django.dispatch.dispatcher import receiver
 from django.core.exceptions import ValidationError
 from django_countries.fields import CountryField
 
-from tinymce import models as tinymce
-
-from ram.models import Document
 from ram.utils import DeduplicatedStorage, get_image_preview, slugify
 from ram.managers import PublicManager
 
@@ -132,20 +129,6 @@ class Decoder(models.Model):
     image_thumbnail.short_description = "Preview"
 
 
-class DecoderDocument(Document):
-    decoder = models.ForeignKey(
-        Decoder, on_delete=models.CASCADE, related_name="document"
-    )
-
-    class Meta:
-        constraints = [
-            models.UniqueConstraint(
-                fields=["decoder", "file"],
-                name="unique_decoder_file"
-            )
-        ]
-
-
 def calculate_ratio(ratio):
     try:
         num, den = ratio.split(":")
@@ -239,14 +222,6 @@ class Tag(models.Model):
         )
 
 
-class GenericDocument(Document):
-    notes = tinymce.HTMLField(blank=True)
-    tags = models.ManyToManyField(Tag, blank=True)
-
-    class Meta:
-        verbose_name_plural = "Generic Documents"
-
-
 class Shop(models.Model):
     name = models.CharField(max_length=128, unique=True)
     country = CountryField(blank=True)

ram/portal/static/css/main.css

@@ -43,13 +43,15 @@ a.badge, a.badge:hover {
   border-top: calc(var(--bs-border-width) * 3) solid var(--bs-border-color);
 }
 
-#nav-journal ul, #nav-journal ol {
-  margin: 0;
+#nav-journal ul,
+#nav-journal ol {
   padding-left: 1rem;
 }
 
-#nav-journal p {
-  margin: 0;
+#nav-journal p:last-child,
+#nav-journal ul:last-child,
+#nav-journal ol:last-child {
+  margin-bottom: 0;
 }
 
 #footer > p {

ram/ram/__init__.py

@@ -1,4 +1,4 @@
 from ram.utils import git_suffix
 
-__version__ = "0.16.9"
+__version__ = "0.17.1"
 __version__ += git_suffix(__file__)

ram/ram/db_router.py

@@ -0,0 +1,32 @@
+class TelemetryRouter:
+    db_table = "telemetry_10secs"
+
+    def db_for_read(self, model, **hints):
+        """Send read operations to the correct database."""
+        if model._meta.db_table == self.db_table:
+            return "telemetry"  # Replace with your database name
+        return None  # Default database
+
+    def db_for_write(self, model, **hints):
+        """Send write operations to the correct database."""
+        if model._meta.db_table == self.db_table:
+            return False  # Prevent Django from writing RO tables
+        return None
+
+    def allow_relation(self, obj1, obj2, **hints):
+        """
+        Allow relations if a model in the auth or contenttypes apps is
+        involved.
+        """
+        if (
+            obj1._meta.db_table == self.db_table
+            or obj2._meta.db_table == self.db_table
+        ):
+            return True
+        return None
+
+    def allow_migrate(self, db, app_label, model_name=None, **hints):
+        """Prevent Django from migrating this model if it's using a specific database."""
+        if db == "telemetry":
+            return False  # Prevent Django from creating/modifying tables
+        return None

ram/ram/models.py

@@ -27,11 +27,6 @@ class Document(models.Model):
     description = models.CharField(max_length=128, blank=True)
     file = models.FileField(
         upload_to="files/",
-        storage=DeduplicatedStorage(),
-    )
-    private = models.BooleanField(
-        default=False,
-        help_text="Document will be visible only to logged users",
     )
     creation_time = models.DateTimeField(auto_now_add=True)
     updated_time = models.DateTimeField(auto_now=True)
@@ -61,8 +56,17 @@ class Document(models.Model):
             '<a href="{0}" target="_blank">Link</a>'.format(self.file.url)
         )
 
+
+class PrivateDocument(Document):
+    private = models.BooleanField(
+        default=False,
+        help_text="Document will be visible only to logged users",
+    )
     objects = PublicManager()
 
+    class Meta:
+        abstract = True
+
 
 class Image(models.Model):
     order = models.PositiveIntegerField(default=0, blank=False, null=False)

ram/ram/settings.py

@@ -50,6 +50,7 @@ INSTALLED_APPS = [
     "portal",
     # "driver",  # uncomment this to enable the "driver" API
     "metadata",
+    "repository",
     "roster",
     "consist",
     "bookshelf",
@@ -94,8 +95,16 @@ DATABASES = {
     "default": {
         "ENGINE": "django.db.backends.sqlite3",
         "NAME": STORAGE_DIR / "db.sqlite3",
-    }
+    },
+    "telemetry": {
+        "ENGINE": "django.db.backends.postgresql",
+        "HOST": "127.0.0.1",
+        "NAME": "dccmonitor",
+        "USER": "dccmonitor",
+        "PASSWORD": "dccmonitor",
+    },
 }
+DATABASE_ROUTERS = ["ram.db_router.TelemetryRouter"]
 
 
 # Password validation

ram/repository/admin.py

@@ -0,0 +1,248 @@
+from django.contrib import admin
+
+from ram.admin import publish, unpublish
+from repository.models import (
+    GenericDocument,
+    InvoiceDocument,
+    BookDocument,
+    CatalogDocument,
+    DecoderDocument,
+    RollingStockDocument
+)
+
+
+@admin.register(GenericDocument)
+class GenericDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size", "creation_time", "updated_time")
+    list_display = (
+        "__str__",
+        "description",
+        "private",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "description",
+        "file",
+    )
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "private",
+                    "description",
+                    "file",
+                    "size",
+                    "tags",
+                )
+            },
+        ),
+        (
+            "Notes",
+            {"classes": ("collapse",), "fields": ("notes",)},
+        ),
+        (
+            "Audit",
+            {
+                "classes": ("collapse",),
+                "fields": (
+                    "creation_time",
+                    "updated_time",
+                ),
+            },
+        ),
+    )
+    actions = [publish, unpublish]
+
+
+@admin.register(InvoiceDocument)
+class InvoiceDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size", "creation_time", "updated_time")
+    list_display = (
+        "__str__",
+        "description",
+        "date",
+        "shop",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "rolling_stock__manufacturer__name",
+        "rolling_stock__item_number",
+        "book__title",
+        "catalog__manufacturer__name",
+        "shop__name",
+        "description",
+        "file",
+    )
+    autocomplete_fields = ("rolling_stock", "book", "catalog", "shop")
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "rolling_stock",
+                    "book",
+                    "catalog",
+                    "description",
+                    "date",
+                    "shop",
+                    "file",
+                    "size",
+                )
+            },
+        ),
+        (
+            "Notes",
+            {"classes": ("collapse",), "fields": ("notes",)},
+        ),
+        (
+            "Audit",
+            {
+                "classes": ("collapse",),
+                "fields": (
+                    "creation_time",
+                    "updated_time",
+                ),
+            },
+        ),
+    )
+
+
+@admin.register(BookDocument)
+class BookDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size",)
+    list_display = (
+        "__str__",
+        "book",
+        "description",
+        "private",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "book__title",
+        "description",
+        "file",
+    )
+    autocomplete_fields = ("book",)
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "private",
+                    "book",
+                    "description",
+                    "file",
+                    "size",
+                )
+            },
+        ),
+    )
+    actions = [publish, unpublish]
+
+
+@admin.register(CatalogDocument)
+class CatalogDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size",)
+    list_display = (
+        "__str__",
+        "catalog",
+        "description",
+        "private",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "catalog__title",
+        "description",
+        "file",
+    )
+    autocomplete_fields = ("catalog",)
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "private",
+                    "catalog",
+                    "description",
+                    "file",
+                    "size",
+                )
+            },
+        ),
+    )
+    actions = [publish, unpublish]
+
+
+@admin.register(DecoderDocument)
+class DecoderDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size",)
+    list_display = (
+        "__str__",
+        "decoder",
+        "description",
+        "private",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "decoder__name",
+        "decoder__manufacturer__name",
+        "description",
+        "file",
+    )
+    autocomplete_fields = ("decoder",)
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "private",
+                    "decoder",
+                    "description",
+                    "file",
+                    "size",
+                )
+            },
+        ),
+    )
+    actions = [publish, unpublish]
+
+
+@admin.register(RollingStockDocument)
+class RollingStockDocumentAdmin(admin.ModelAdmin):
+    readonly_fields = ("size",)
+    list_display = (
+        "__str__",
+        "rolling_stock",
+        "description",
+        "private",
+        "size",
+        "download",
+    )
+    search_fields = (
+        "rolling_stock__rolling_class__identifier",
+        "rolling_stock__item_number",
+        "description",
+        "file",
+    )
+    autocomplete_fields = ("rolling_stock",)
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "private",
+                    "rolling_stock",
+                    "description",
+                    "file",
+                    "size",
+                )
+            },
+        ),
+    )
+    actions = [publish, unpublish]

ram/repository/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class RepositoryConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "repository"

ram/repository/migrations/0001_initial.py

@@ -0,0 +1,361 @@
+# Generated by Django 5.1.4 on 2025-02-09 13:04
+
+import django.db.models.deletion
+import ram.utils
+import tinymce.models
+from django.db import migrations, models
+
+
+def migrate_document(apps, schema_editor):
+    document = apps.get_model("metadata", "GenericDocument")
+    document_new = apps.get_model("repository", "GenericDocument")
+    for d in document.objects.all():
+        n = document_new.objects.create(
+            notes=d.notes,
+            description=d.description,
+            file=d.file,
+            private=d.private,
+            creation_time=d.creation_time,
+            updated_time=d.updated_time,
+        )
+        for t in d.tags.all():
+            n.tags.add(t)
+
+
+def migrate_decoder(apps, schema_editor):
+    dcc_document = apps.get_model("metadata", "DecoderDocument")
+    dcc_document_new = apps.get_model("repository", "DecoderDocument")
+    for d in dcc_document.objects.all():
+        dcc_document_new.objects.create(
+            decoder=d.decoder,
+            description=d.description,
+            file=d.file,
+            private=d.private,
+            creation_time=d.creation_time,
+            updated_time=d.updated_time,
+        )
+
+
+def migrate_rollingstock(apps, schema_editor):
+    rs_document = apps.get_model("roster", "RollingStockDocument")
+    rs_document_new = apps.get_model("repository", "RollingStockDocument")
+    for d in rs_document.objects.all():
+        rs_document_new.objects.create(
+            rolling_stock=d.rolling_stock,
+            description=d.description,
+            file=d.file,
+            private=d.private,
+            creation_time=d.creation_time,
+            updated_time=d.updated_time,
+        )
+
+
+def migrate_book(apps, schema_editor):
+    book_document = apps.get_model("bookshelf", "BaseBookDocument")
+    book_document_new = apps.get_model("repository", "BaseBookDocument")
+    catalog_document_new = apps.get_model("repository", "CatalogDocument")
+    for d in book_document.objects.all():
+        if hasattr(d.book, "book"):
+            book_document_new.objects.create(
+                book=d.book.book,
+                description=d.description,
+                file=d.file,
+                private=d.private,
+                creation_time=d.creation_time,
+                updated_time=d.updated_time,
+            )
+        else:
+            catalog_document_new.objects.create(
+                catalog=d.book.catalog,
+                description=d.description,
+                file=d.file,
+                private=d.private,
+                creation_time=d.creation_time,
+                updated_time=d.updated_time,
+            )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookshelf", "0022_basebook_shop"),
+        ("metadata", "0023_shop"),
+        ("roster", "0035_alter_rollingstock_shop"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="BaseBookDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                (
+                    "book",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="new_document",
+                        to="bookshelf.basebook",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Documents",
+                "abstract": False,
+            },
+        ),
+        migrations.CreateModel(
+            name="BookDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                (
+                    "book",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="document",
+                        to="bookshelf.book",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Book documents",
+                "constraints": [
+                    models.UniqueConstraint(
+                        fields=("book", "file"), name="unique_book_file"
+                    )
+                ],
+            },
+        ),
+        migrations.CreateModel(
+            name="CatalogDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                (
+                    "catalog",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="document",
+                        to="bookshelf.catalog",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Catalog documents",
+                "constraints": [
+                    models.UniqueConstraint(
+                        fields=("catalog", "file"), name="unique_catalog_file"
+                    )
+                ],
+            },
+        ),
+        migrations.CreateModel(
+            name="GenericDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                ("notes", tinymce.models.HTMLField(blank=True)),
+                (
+                    "tags",
+                    models.ManyToManyField(
+                        blank=True, related_name="new_document", to="metadata.tag"
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Generic Documents",
+            },
+        ),
+        migrations.CreateModel(
+            name="RollingStockDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                (
+                    "rolling_stock",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="new_document",
+                        to="roster.rollingstock",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Documents",
+                "abstract": False,
+            },
+        ),
+        migrations.CreateModel(
+            name="DecoderDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                (
+                    "file",
+                    models.FileField(
+                        storage=ram.utils.DeduplicatedStorage(), upload_to="files/"
+                    ),
+                ),
+                (
+                    "private",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Document will be visible only to logged users",
+                    ),
+                ),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                (
+                    "decoder",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="new_document",
+                        to="metadata.decoder",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name_plural": "Documents",
+                "abstract": False,
+            },
+        ),
+        migrations.RunPython(
+            migrate_document,
+            reverse_code=migrations.RunPython.noop
+        ),
+        migrations.RunPython(
+            migrate_decoder,
+            reverse_code=migrations.RunPython.noop
+        ),
+        migrations.RunPython(
+            migrate_rollingstock,
+            reverse_code=migrations.RunPython.noop
+        ),
+        migrations.RunPython(
+            migrate_book,
+            reverse_code=migrations.RunPython.noop
+        ),
+    ]

ram/repository/migrations/0002_invoicedocument_remove_basebookdocument_book_and_more.py

@@ -0,0 +1,157 @@
+# Generated by Django 5.1.4 on 2025-02-09 23:10
+
+import django.db.models.deletion
+import tinymce.models
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookshelf", "0023_delete_basebookdocument"),
+        (
+            "metadata",
+            "0024_remove_genericdocument_tags_delete_decoderdocument_and_more",
+        ),
+        ("repository", "0001_initial"),
+        ("roster", "0036_delete_rollingstockdocument"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="InvoiceDocument",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("description", models.CharField(blank=True, max_length=128)),
+                ("creation_time", models.DateTimeField(auto_now_add=True)),
+                ("updated_time", models.DateTimeField(auto_now=True)),
+                ("private", models.BooleanField(default=True, editable=False)),
+                ("date", models.DateField()),
+                ("file", models.FileField(upload_to="files/invoices/")),
+                ("notes", tinymce.models.HTMLField(blank=True)),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+        migrations.RemoveField(
+            model_name="basebookdocument",
+            name="book",
+        ),
+        migrations.AlterModelOptions(
+            name="decoderdocument",
+            options={},
+        ),
+        migrations.AlterModelOptions(
+            name="genericdocument",
+            options={"verbose_name_plural": "Generic documents"},
+        ),
+        migrations.AlterModelOptions(
+            name="rollingstockdocument",
+            options={},
+        ),
+        migrations.AlterField(
+            model_name="bookdocument",
+            name="file",
+            field=models.FileField(upload_to="files/"),
+        ),
+        migrations.AlterField(
+            model_name="catalogdocument",
+            name="file",
+            field=models.FileField(upload_to="files/"),
+        ),
+        migrations.AlterField(
+            model_name="decoderdocument",
+            name="decoder",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="document",
+                to="metadata.decoder",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="decoderdocument",
+            name="file",
+            field=models.FileField(upload_to="files/"),
+        ),
+        migrations.AlterField(
+            model_name="genericdocument",
+            name="file",
+            field=models.FileField(upload_to="files/"),
+        ),
+        migrations.AlterField(
+            model_name="genericdocument",
+            name="tags",
+            field=models.ManyToManyField(
+                blank=True, related_name="document", to="metadata.tag"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="rollingstockdocument",
+            name="file",
+            field=models.FileField(upload_to="files/"),
+        ),
+        migrations.AlterField(
+            model_name="rollingstockdocument",
+            name="rolling_stock",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="document",
+                to="roster.rollingstock",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="decoderdocument",
+            constraint=models.UniqueConstraint(
+                fields=("decoder", "file"), name="unique_decoder_file"
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="rollingstockdocument",
+            constraint=models.UniqueConstraint(
+                fields=("rolling_stock", "file"), name="unique_stock_file"
+            ),
+        ),
+        migrations.AddField(
+            model_name="invoicedocument",
+            name="book",
+            field=models.ManyToManyField(
+                blank=True, related_name="invoice", to="bookshelf.book"
+            ),
+        ),
+        migrations.AddField(
+            model_name="invoicedocument",
+            name="catalog",
+            field=models.ManyToManyField(
+                blank=True, related_name="invoice", to="bookshelf.catalog"
+            ),
+        ),
+        migrations.AddField(
+            model_name="invoicedocument",
+            name="rolling_stock",
+            field=models.ManyToManyField(
+                blank=True, related_name="invoice", to="roster.rollingstock"
+            ),
+        ),
+        migrations.AddField(
+            model_name="invoicedocument",
+            name="shop",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to="metadata.shop",
+            ),
+        ),
+        migrations.DeleteModel(
+            name="BaseBookDocument",
+        ),
+    ]

ram/repository/models.py

@@ -0,0 +1,90 @@
+from django.db import models
+from django.core.exceptions import ValidationError
+
+from tinymce import models as tinymce
+
+from ram.models import PrivateDocument
+from metadata.models import Decoder, Shop, Tag
+from roster.models import RollingStock
+from bookshelf.models import Book, Catalog
+
+
+class GenericDocument(PrivateDocument):
+    notes = tinymce.HTMLField(blank=True)
+    tags = models.ManyToManyField(Tag, blank=True, related_name="document")
+
+    class Meta:
+        verbose_name_plural = "Generic documents"
+
+
+class InvoiceDocument(PrivateDocument):
+    private = models.BooleanField(default=True, editable=False)
+    rolling_stock = models.ManyToManyField(
+        RollingStock, related_name="invoice", blank=True
+    )
+    book = models.ManyToManyField(Book, related_name="invoice", blank=True)
+    catalog = models.ManyToManyField(
+        Catalog, related_name="invoice", blank=True
+    )
+    date = models.DateField()
+    shop = models.ForeignKey(
+        Shop, on_delete=models.SET_NULL, null=True, blank=True
+    )
+    file = models.FileField(
+        upload_to="files/invoices/",
+    )
+    notes = tinymce.HTMLField(blank=True)
+
+
+class DecoderDocument(PrivateDocument):
+    decoder = models.ForeignKey(
+        Decoder, on_delete=models.CASCADE, related_name="document"
+    )
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["decoder", "file"], name="unique_decoder_file"
+            )
+        ]
+
+
+class BookDocument(PrivateDocument):
+    book = models.ForeignKey(
+        Book, on_delete=models.CASCADE, related_name="document"
+    )
+
+    class Meta:
+        verbose_name_plural = "Book documents"
+        constraints = [
+            models.UniqueConstraint(
+                fields=["book", "file"], name="unique_book_file"
+            )
+        ]
+
+
+class CatalogDocument(PrivateDocument):
+    catalog = models.ForeignKey(
+        Catalog, on_delete=models.CASCADE, related_name="document"
+    )
+
+    class Meta:
+        verbose_name_plural = "Catalog documents"
+        constraints = [
+            models.UniqueConstraint(
+                fields=["catalog", "file"], name="unique_catalog_file"
+            )
+        ]
+
+
+class RollingStockDocument(PrivateDocument):
+    rolling_stock = models.ForeignKey(
+        RollingStock, on_delete=models.CASCADE, related_name="document"
+    )
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["rolling_stock", "file"], name="unique_stock_file"
+            )
+        ]

ram/repository/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

ram/repository/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

ram/roster/admin.py

@@ -8,15 +8,16 @@ from adminsortable2.admin import SortableAdminBase, SortableInlineAdminMixin
 
 from ram.admin import publish, unpublish
 from ram.utils import generate_csv
+from repository.models import RollingStockDocument
 from portal.utils import get_site_conf
 from roster.models import (
     RollingClass,
     RollingClassProperty,
     RollingStock,
     RollingStockImage,
-    RollingStockDocument,
     RollingStockProperty,
     RollingStockJournal,
+    RollingStockTelemetry,
 )
 
 
@@ -76,42 +77,8 @@ class RollingStockJournalInline(admin.TabularInline):
     classes = ["collapse"]
 
 
-@admin.register(RollingStockDocument)
-class RollingStockDocumentAdmin(admin.ModelAdmin):
-    readonly_fields = ("size",)
-    list_display = (
-        "__str__",
-        "rolling_stock",
-        "description",
-        "private",
-        "size",
-        "download",
-    )
-    search_fields = (
-        "rolling_stock__rolling_class__identifier",
-        "rolling_stock__item_number",
-        "description",
-        "file",
-    )
-    autocomplete_fields = ("rolling_stock",)
-    fieldsets = (
-        (
-            None,
-            {
-                "fields": (
-                    "private",
-                    "rolling_stock",
-                    "description",
-                    "file",
-                    "size",
-                )
-            },
-        ),
-    )
-
-
 @admin.register(RollingStockJournal)
-class RollingJournalDocumentAdmin(admin.ModelAdmin):
+class RollingJournalAdmin(admin.ModelAdmin):
     list_display = (
         "__str__",
         "date",
@@ -152,7 +119,7 @@ class RollingStockAdmin(SortableAdminBase, admin.ModelAdmin):
         RollingStockJournalInline,
     )
     autocomplete_fields = ("rolling_class", "shop")
-    readonly_fields = ("preview", "creation_time", "updated_time")
+    readonly_fields = ("preview", "invoices", "creation_time", "updated_time")
     list_display = (
         "__str__",
         "address",
@@ -223,6 +190,7 @@ class RollingStockAdmin(SortableAdminBase, admin.ModelAdmin):
                     "shop",
                     "purchase_date",
                     "price",
+                    "invoices",
                 )
             },
         ),
@@ -249,6 +217,17 @@ class RollingStockAdmin(SortableAdminBase, admin.ModelAdmin):
         )
         return form
 
+    @admin.display(description="Invoices")
+    def invoices(self, obj):
+        if obj.invoice.exists():
+            html = "<br>".join(
+                "<a href=\"{}\" target=\"_blank\">{}</a>".format(
+                    i.file.url, i
+                ) for i in obj.invoice.all())
+        else:
+            html = "-"
+        return format_html(html)
+
     def download_csv(modeladmin, request, queryset):
         header = [
             "Name",
@@ -309,3 +288,29 @@ class RollingStockAdmin(SortableAdminBase, admin.ModelAdmin):
 
     download_csv.short_description = "Download selected items as CSV"
     actions = [publish, unpublish, download_csv]
+
+
+@admin.register(RollingStockTelemetry)
+class RollingTelemtryAdmin(admin.ModelAdmin):
+    list_filter = ("bucket", "cab")
+    list_display = ("bucket_highres", "cab", "max_speed", "avg_speed")
+
+    def bucket_highres(self, obj):
+        return obj.bucket.strftime("%Y-%m-%d %H:%M:%S")
+
+    bucket_highres.admin_order_field = "bucket"  # Enable sorting
+    bucket_highres.short_description = "Bucket"  # Column name in admin
+
+    def get_changelist_instance(self, request):
+        changelist = super().get_changelist_instance(request)
+        changelist.list_display_links = None  # Disable links
+        return changelist
+
+    def has_add_permission(self, request):
+        return False  # Disable adding new objects
+
+    def has_change_permission(self, request, obj=None):
+        return False  # Disable editing objects
+
+    def has_delete_permission(self, request, obj=None):
+        return False  # Disable deleting objects

ram/roster/migrations/0036_delete_rollingstockdocument.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.1.4 on 2025-02-09 13:47
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("roster", "0035_alter_rollingstock_shop"),
+        ("repository", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name="RollingStockDocument",
+        ),
+    ]

ram/roster/models.py

@@ -8,7 +8,7 @@ from django.dispatch import receiver
 
 from tinymce import models as tinymce
 
-from ram.models import BaseModel, Document, Image, PropertyInstance
+from ram.models import BaseModel, Image, PropertyInstance
 from ram.utils import DeduplicatedStorage, slugify
 from ram.managers import PublicManager
 from metadata.models import (
@@ -169,20 +169,6 @@ def pre_save_internal_fields(sender, instance, *args, **kwargs):
     instance.item_number_slug = slugify(instance.item_number)
 
 
-class RollingStockDocument(Document):
-    rolling_stock = models.ForeignKey(
-        RollingStock, on_delete=models.CASCADE, related_name="document"
-    )
-
-    class Meta:
-        constraints = [
-            models.UniqueConstraint(
-                fields=["rolling_stock", "file"],
-                name="unique_stock_file"
-            )
-        ]
-
-
 def rolling_stock_image_upload(instance, filename):
     return os.path.join(
         "images",
@@ -238,6 +224,20 @@ class RollingStockJournal(models.Model):
     objects = PublicManager()
 
 
+# trick: this is technically an abstract class
+# it is made readonly via db_router and admin to avoid any unwanted change
+class RollingStockTelemetry(models.Model):
+    bucket = models.DateTimeField(primary_key=True, editable=False)
+    cab = models.PositiveIntegerField(editable=False)
+    avg_speed = models.FloatField(editable=False)
+    max_speed = models.PositiveIntegerField(editable=False)
+
+    class Meta:
+        db_table = "telemetry_10secs"
+        ordering = ["cab", "bucket"]
+        verbose_name_plural = "Telemetries"
+
+
 # @receiver(models.signals.post_delete, sender=Cab)
 # def post_save_image(sender, instance, *args, **kwargs):
 #     try:

requirements.txt

@@ -8,7 +8,7 @@ django-countries
 django-health-check
 django-admin-sortable2
 django-tinymce
-# Optional: # psycopg2-binary
+psycopg2-binary
 # Required by django-countries and not always installed
 # by default on modern venvs (like Python 3.12 on Fedora 39)
 setuptools