Limit decoders selection to model manufacturers

README.md

@@ -2,22 +2,25 @@
 
 [![Django CI](https://github.com/daniviga/django-rma/actions/workflows/django.yml/badge.svg)](https://github.com/daniviga/django-rma/actions/workflows/django.yml)
 
+![image](https://user-images.githubusercontent.com/1818657/175789825-9a03f0ff-a95e-42a2-9611-e14d2817e22f.png)
+
+
 A `jff` (just for fun) project that aims to create a
 model railroad assets manager that allows to:
 
-- Create a database of assets (model trains) and consits with their metadata
+- Create a database of assets (model trains) and consists with their metadata
 - Manage the database via a simple but rationale backoffice
 - Expose main data via an HTML interface to show how beautiful is your collection
   to the outside world
 - Act as a DCC++ EX REST API gateway to control assets remotely via DCC.
-  By anyone, if you'd like (really?).
+  By anyone, if you'd like (seriously?).
 
 ## Preface
 
-Project is intended to have fun only and it has been developed with a
-commitment of few minutes a day; it lacks any kind of documentation, code
-review, architectural review, security assesment, pentest, ISO certification,
-etc.
+**This project is work in progress**. It is intended for fun only and
+it has been developed with a commitment of few minutes a day;
+it lacks any kind of documentation, code review, architectural review,
+security assesment, pentest, ISO certification, etc.
 
 This project probably doesn't match you needs nor expectations. Be aware.
 
@@ -30,20 +33,20 @@ Project is based on the following technologies and components:
 - [Django](https://www.djangoproject.com/): *the* web framework
 - [Django REST](https://www.django-rest-framework.org/): API for the lazy
 - [Bootstrap](https://getbootstrap.com/): for the web frontend
-- [Arduino](https://arduino.cc): DCC hardware
+- [Arduino](https://arduino.cc): DCC hardware; you must get one, really
 - [DCC++ EX Command Station](https://dcc-ex.com/): DCC firmware; an amazing project
-- [DCC++ EX WebThrottle](https://github.com/DCC-EX/WebThrottle-EX): a slighly modified version of the DCC++ EX web throttle
+- [DCC++ EX WebThrottle](https://github.com/DCC-EX/WebThrottle-EX): the DCC++ EX web throttle, a slightly modified version
 
 It has been developed with:
 
 - [vim](https://www.vim.org/): because it rocks
-- [arduino-cli](https://github.com/arduino/arduino-cli/): a mouse? What the hack?
+- [arduino-cli](https://github.com/arduino/arduino-cli/): a mouse? What the heck?
 - [vim-arduino](https://github.com/stevearc/vim-arduino): another IDE? No thanks
 - [podman](https://podman.io/): because containers are fancy
 - [QEMU (avr)](https://qemu-project.gitlab.io/qemu/system/target-avr.html): QEMU can even make toast!
 
 
-## Requirments
+## Requirements
 
 - Python 3.8+
 - A USB port when running Arduino hardware (and adaptors if you have a Mac)
@@ -132,10 +135,30 @@ $ podman run --init --cpus 0.1 -d -p 2560:2560 dcc/net-to-serial:sim
 
 To be continued ...
 
-
-
-
-
+## Screenshots
+
+### Frontend
+
+![image](https://user-images.githubusercontent.com/1818657/175789897-9ec4a9bb-9c65-48ef-9b57-ae94e094e6a7.png)
+---
+![image](https://user-images.githubusercontent.com/1818657/175789901-ef50acd7-8c05-4788-92a2-1bb1280d598c.png)
+---
+![image](https://user-images.githubusercontent.com/1818657/175790004-18926d23-28f9-45bb-b279-6c26575ae3a5.png)
+---
+![image](https://user-images.githubusercontent.com/1818657/175790008-62eea2cc-1c41-42df-9026-4cf6e8ef712c.png)
+
+
+### Backoffice
+
+![image](https://user-images.githubusercontent.com/1818657/175789937-3e4970a2-b37d-44c3-8605-62dabe209c65.png)
+---
+![image](https://user-images.githubusercontent.com/1818657/175789946-d7ce882c-1ba6-49b2-8e0a-1144e5c6bc35.png)
+---
+![image](https://user-images.githubusercontent.com/1818657/175789954-0735a4ea-bcaf-4a45-adbc-64105091b051.png)
+
+### Rest API
+
+![image](https://user-images.githubusercontent.com/1818657/175790064-23ec038e-e8bf-4c39-964c-3118e4295b59.png)
 
 
 

daemons/simulator/README.md

@@ -1,6 +1,6 @@
 # AVR Simulator
 
-`qemu-system-avr` tries to use all the CPU cicles (leaving a CPU core stuck at 100%. Limit CPU core usage to 10%. It may be adjusted on slower machines.
+`qemu-system-avr` tries to use all the CPU cicles (leaving a CPU core stuck at 100%; limit CPU core usage to 10% via `--cpus 0.1`. It can be adjusted on slower machines.
 
 ```bash
 $ podman build -t dcc/net-to-serial:sim . 

ram/consist/migrations/0002_alter_consist_options.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.0.6 on 2022-07-10 13:19
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('consist', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='consist',
+            options={'ordering': ['creation_time']},
+        ),
+    ]

ram/consist/models.py

@@ -27,6 +27,9 @@ class Consist(models.Model):
     def get_absolute_url(self):
         return reverse("consist", kwargs={"uuid": self.uuid})
 
+    class Meta:
+        ordering = ["creation_time"]
+
 
 class ConsistItem(models.Model):
     consist = models.ForeignKey(

ram/metadata/migrations/0002_alter_decoder_manufacturer.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.0.6 on 2022-07-10 21:46
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('metadata', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='decoder',
+            name='manufacturer',
+            field=models.ForeignKey(limit_choices_to={'category': 'model'}, on_delete=django.db.models.deletion.CASCADE, to='metadata.manufacturer'),
+        ),
+    ]

ram/metadata/models.py

@@ -59,7 +59,11 @@ class Company(models.Model):
 
 class Decoder(models.Model):
     name = models.CharField(max_length=128, unique=True)
-    manufacturer = models.ForeignKey(Manufacturer, on_delete=models.CASCADE)
+    manufacturer = models.ForeignKey(
+        Manufacturer,
+        on_delete=models.CASCADE,
+        limit_choices_to={"category": "model"}
+    )
     version = models.CharField(max_length=64, blank=True)
     interface = models.PositiveSmallIntegerField(
         choices=settings.DECODER_INTERFACES, null=True, blank=True

ram/portal/templates/base.html

@@ -34,7 +34,7 @@
     <header>
       <div class="navbar navbar-light bg-light shadow-sm">
         <div class="container">
-          <a href="/" class="navbar-brand d-flex align-items-center">
+          <a href="{% url 'index' %}" class="navbar-brand d-flex align-items-center">
             <svg class="me-2" width="26" height="16" enable-background="new 0 0 26 26" version="1" viewBox="0 0 26 16" xmlns="http://www.w3.org/2000/svg">
               <path d="m2.8125 0.0010991a1.0001 1.0001 0 0 0-0.8125 1c0 0.55455-0.44545 1-1 1a1.0001 1.0001 0 0 0-1 1v10a1.0001 1.0001 0 0 0 1 1c0.55455 0 1 0.44546 1 1a1.0001 1.0001 0 0 0 1 1h20a1.0001 1.0001 0 0 0 1-1c0-0.55454 0.44546-1 1-1a1.0001 1.0001 0 0 0 1-1v-10a1.0001 1.0001 0 0 0-1-1c-0.55454 0-1-0.44545-1-1a1.0001 1.0001 0 0 0-1-1h-20a1.0001 1.0001 0 0 0-0.09375 0 1.0001 1.0001 0 0 0-0.09375 0zm0.78125 2h14.406v1h2v-1h2.4062c0.30628 0.76906 0.82469 1.2875 1.5938 1.5938v8.8125c-0.76906 0.30628-1.2875 0.82469-1.5938 1.5938h-2.4062v-1h-2v1h-14.406c-0.30628-0.76906-0.82469-1.2875-1.5938-1.5938v-8.8125c0.76906-0.30628 1.2875-0.82469 1.5938-1.5938zm14.406 2v2h2v-2zm0 3v2h2v-2zm0 3v2h2v-2z" enable-background="accumulate" fill="#000" overflow="visible" stroke-width="2" style="text-indent:0;text-transform:none"/>
             </svg>
@@ -48,14 +48,14 @@
       <div class="container py-2">
         <nav class="navbar navbar-expand-lg navbar-light">
           <div class="container-fluid g-0">
-            <a class="navbar-brand" href="/">Home</a>
+              <a class="navbar-brand" href="{% url 'index' %}">Home</a>
             <div class="collapse navbar-collapse" id="navbarSupportedContent">
               <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                 <li class="nav-item">
-                  <a class="nav-link" href="/portal">Roster</a>
+                  <a class="nav-link" href="{% url 'index' %}">Roster</a>
                 </li>
                 <li class="nav-item">
-                  <a class="nav-link" href="/portal/consist">Consists</a>
+                  <a class="nav-link" href="{% url 'consists' %}">Consists</a>
                 </li>
               </ul>
                     {% include 'includes/search.html' %}
@@ -79,7 +79,7 @@
             <div class="col">
               <div class="card shadow-sm">
                 {% for i in r.image.all %}
-                {% if i.is_thumbnail %}<a href="/portal/{{ r.uuid }}"><img src="{{ i.image.url }}" alt="Card image cap"></a>{% endif %}
+                {% if i.is_thumbnail %}<a href="{{r.get_absolute_url}}"><img src="{{ i.image.url }}" alt="Card image cap"></a>{% endif %}
                 {% endfor %}
                 <div class="card-body">
                   <p class="card-text"><strong>{{ r }}</strong></p>
@@ -151,7 +151,7 @@
                   </table>
                   {% endif %}
                   <div class="btn-group mb-4">
-                   <a class="btn btn-sm btn-outline-primary" href="/portal/{{ r.uuid }}">Show all data</a>
+                   <a class="btn btn-sm btn-outline-primary" href="{{r.get_absolute_url}}">Show all data</a>
                     {% if request.user.is_staff %}<a class="btn btn-sm btn-outline-danger" href="{% url 'admin:roster_rollingstock_change' r.pk %}">Edit</a>{% endif %}
                   </div>
                   <div class="d-flex justify-content-between align-items-center">

ram/portal/templates/consist.html

@@ -16,7 +16,7 @@
       <div class="col">
         <div class="card shadow-sm">
           {% for i in r.rolling_stock.image.all %}
-          {% if i.is_thumbnail %}<a href="/portal/{{ r.rolling_stock.uuid }}"><img src="{{ i.image.url }}" alt="Card image cap"></a>{% endif %}
+          {% if i.is_thumbnail %}<a href="{{r.rolling_stock.get_absolute_url}}"><img src="{{ i.image.url }}" alt="Card image cap"></a>{% endif %}
           {% endfor %}
           <div class="card-body">
             <p class="card-text"><strong>{{ r }}</strong></p>
@@ -88,7 +88,7 @@
               </table>
             {% endif %}
             <div class="btn-group mb-4">
-             <a class="btn btn-sm btn-outline-primary" href="/portal/{{ r.rolling_stock.uuid }}">Show all data</a>
+             <a class="btn btn-sm btn-outline-primary" href="{{r.rolling_stock.get_absolute_url}}">Show all data</a>
               {% if request.user.is_staff %}<a class="btn btn-sm btn-outline-danger" href="{% url 'admin:roster_rollingstock_change' r.rolling_stock.pk %}">Edit</a>{% endif %}
             </div>
             <div class="d-flex justify-content-between align-items-center">
@@ -105,7 +105,7 @@
         <ul class="pagination justify-content-center mt-4">
           {% if rolling_stock.has_previous %}
           <li class="page-item">
-            <a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ rolling_stock.previous_page_number }}#rolling_stock" tabindex="-1">Previous</a>
+            <a class="page-link" href="{% url 'consist_pagination' uuid=consist.uuid page=rolling_stock.previous_page_number %}#rolling-stock" tabindex="-1">Previous</a>
           </li>
           {% else %}
           <li class="page-item disabled">
@@ -118,12 +118,12 @@
               <span class="page-link">{{ i }}</span></span>
             </li>
             {% else %}
-            <li class="page-item"><a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ i }}#rolling-stock">{{ i }}</a></li>
+            <li class="page-item"><a class="page-link" href="{% url 'consist_pagination' uuid=consist.uuid page=i %}#rolling-stock">{{ i }}</a></li>
             {% endif %}
           {% endfor %}
           {% if rolling_stock.has_next %}
           <li class="page-item">
-            <a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ rolling_stock.next_page_number }}#rolling-stock" tabindex="-1">Next</a>
+            <a class="page-link" href="{% url 'consist_pagination' uuid=consist.uuid page=rolling_stock.next_page_number %}#rolling-stock" tabindex="-1">Next</a>
           </li>
           {% else %}
           <li class="page-item disabled">

ram/portal/templates/consists.html

@@ -45,7 +45,7 @@
               </tbody>
             </table>
             <div class="btn-group mb-4">
-             <a class="btn btn-sm btn-outline-primary" href="/portal/consist/{{ c.uuid }}">Show all data</a>
+             <a class="btn btn-sm btn-outline-primary" href="{{ c.get_absolute_url }}">Show all data</a>
               {% if request.user.is_staff %}<a class="btn btn-sm btn-outline-danger" href="{# url 'admin:consist_consist_change' c.pk #}">Edit</a>{% endif %}
             </div>
             <div class="d-flex justify-content-between align-items-center">
@@ -57,30 +57,30 @@
       {% endfor %}
       {% endblock %}
       {% block pagination %}
-      {% if rolling_stock.has_other_pages %}
+      {% if consist.has_other_pages %}
       <nav aria-label="Page navigation example">
         <ul class="pagination justify-content-center mt-4">
-          {% if rolling_stock.has_previous %}
+          {% if consist.has_previous %}
           <li class="page-item">
-            <a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ rolling_stock.previous_page_number }}#rolling_stock" tabindex="-1">Previous</a>
+            <a class="page-link" href="{% url 'consists_pagination' page=consist.previous_page_number %}#rolling-stock" tabindex="-1">Previous</a>
           </li>
           {% else %}
           <li class="page-item disabled">
             <span class="page-link">Previous</span>
           </li>
           {% endif %}
-          {% for i in rolling_stock.paginator.page_range %}
-            {% if rolling_stock.number == i %}
+          {% for i in consist.paginator.page_range %}
+            {% if consist.number == i %}
             <li class="page-item active">
               <span class="page-link">{{ i }}</span></span>
             </li>
             {% else %}
-            <li class="page-item"><a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ i }}#rolling-stock">{{ i }}</a></li>
+            <li class="page-item"><a class="page-link" href="{% url 'consists_pagination' page=i %}#rolling-stock">{{ i }}</a></li>
             {% endif %}
           {% endfor %}
-          {% if rolling_stock.has_next %}
+          {% if consist.has_next %}
           <li class="page-item">
-            <a class="page-link" href="/portal/consist/{{ consist.uuid }}/{{ rolling_stock.next_page_number }}#rolling-stock" tabindex="-1">Next</a>
+            <a class="page-link" href="{% url 'consists_pagination' page=consist.next_page_number %}#rolling-stock" tabindex="-1">Next</a>
           </li>
           {% else %}
           <li class="page-item disabled">

ram/portal/templates/home.html

@@ -12,7 +12,7 @@
         <ul class="pagination justify-content-center mt-4">
           {% if rolling_stock.has_previous %}
           <li class="page-item">
-            <a class="page-link" href="/portal/{{ rolling_stock.previous_page_number }}#rolling_stock" tabindex="-1">Previous</a>
+            <a class="page-link" href="{% url 'index_pagination' page=rolling_stock.previous_page_number %}#rolling-stock" tabindex="-1">Previous</a>
           </li>
           {% else %}
           <li class="page-item disabled">
@@ -25,12 +25,12 @@
               <span class="page-link">{{ i }}</span></span>
             </li>
             {% else %}
-            <li class="page-item"><a class="page-link" href="/portal/{{ i }}#rolling-stock">{{ i }}</a></li>
+            <li class="page-item"><a class="page-link" href="{% url 'index_pagination' page=i %}#rolling-stock">{{ i }}</a></li>
             {% endif %}
           {% endfor %}
           {% if rolling_stock.has_next %}
           <li class="page-item">
-            <a class="page-link" href="/portal/{{ rolling_stock.next_page_number }}#rolling-stock" tabindex="-1">Next</a>
+            <a class="page-link" href="{% url 'index_pagination' page=rolling_stock.next_page_number %}#rolling-stock" tabindex="-1">Next</a>
           </li>
           {% else %}
           <li class="page-item disabled">

ram/portal/templates/includes/footer.html

@@ -14,7 +14,7 @@
     </div>
     {% if site_conf.show_version %}
     <div class="container">
-      <p class="small text-muted">Version: {{ site_conf.version }}</p>
+        <p class="small text-muted">Made with ❤️ and <a href="https://github.com/daniviga/django-ram">django-ram</a> version {{ site_conf.version }}</p>
     </div>
     {% endif %}
   </footer>

ram/portal/templates/includes/search.html

@@ -1,4 +1,4 @@
-          <form class="d-flex" action="/portal/search" method="post">
+          <form class="d-flex" action="{% url 'search' %}" method="post">
             <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search" name="search">
             <button class="btn btn-outline-primary" type="submit">Search</button>
           </form>

ram/portal/templates/search.html

@@ -10,7 +10,7 @@
         <ul class="pagination justify-content-center mt-4">
           {% if rolling_stock.has_previous %}
           <li class="page-item">
-            <a class="page-link" href="/portal/search/{{ search }}/{{ rolling_stock.previous_page_number }}#rolling_stock" tabindex="-1">Previous</a>
+            <a class="page-link" href="{% url 'search_pagination' search=search page=rolling_stock.previous_page_number %}#rolling-stock" tabindex="-1">Previous</a>
           </li>
           {% else %}
           <li class="page-item disabled">
@@ -23,12 +23,12 @@
               <span class="page-link">{{ i }}</span></span>
             </li>
             {% else %}
-            <li class="page-item"><a class="page-link" href="/portal/search/{{ search }}/{{ i }}#rolling-stock">{{ i }}</a></li>
+            <li class="page-item"><a class="page-link" href="{% url 'search_pagination' search=search page=i %}#rolling-stock">{{ i }}</a></li>
             {% endif %}
           {% endfor %}
           {% if rolling_stock.has_next %}
           <li class="page-item">
-            <a class="page-link" href="/portal/search/{{ search }}/{{ rolling_stock.next_page_number }}#rolling-stock" tabindex="-1">Next</a>
+            <a class="page-link" href="{% url 'search_pagination' search=search page=rolling_stock.next_page_number %}#rolling-stock" tabindex="-1">Next</a>
           </li>
           {% else %}
           <li class="page-item disabled">

ram/portal/urls.py

@@ -22,7 +22,11 @@ urlpatterns = [
         GetHomeFiltered.as_view(),
         name="search_pagination",
     ),
-    path("consist", Consists.as_view(), name="consists"),
+    path("consists", Consists.as_view(), name="consists"),
+    path(
+        "consists/<int:page>",
+        Consists.as_view(), name="consists_pagination"
+    ),
     path("consist/<uuid:uuid>", GetConsist.as_view(), name="consist"),
     path(
         "consist/<uuid:uuid>/<int:page>",

ram/ram/__init__.py

@@ -1,4 +1,4 @@
 from ram.utils import git_suffix
 
-__version__ = "0.0.2"
+__version__ = "0.0.3"
 __version__ += git_suffix(__file__)

ram/ram/local_settings.py.tmpl

@@ -0,0 +1,20 @@
+# vim: syntax=python
+
+"""
+Django local_settings for ram project.
+"""
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = (
+    "django-insecure-1fgtf05rwp0qp05@ef@a7%x#o+t6vk6063py=vhdmut0j!8s4u"
+)
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = False
+
+STORAGE_DIR = BASE_DIR / "storage"
+ALLOWED_HOSTS = ["127.0.0.1"]
+CSRF_TRUSTED_ORIGINS = ["https://myhost"]
+ROOT_URLCONF = "ram.urls"
+STATIC_URL = "static/"
+MEDIA_URL = "media/"

ram/ram/settings.py

@@ -161,3 +161,10 @@ ROLLING_STOCK_TYPES = [
     ("equipment", "Equipment"),
     ("other", "Other"),
 ]
+
+try:
+    from ram.local_settings import *
+except ImportError:
+    # If a local_setting.py does not exist
+    # settings in this file only will be used
+    pass

ram/ram/urls.py

@@ -20,7 +20,7 @@ from django.contrib import admin
 from django.urls import include, path
 
 urlpatterns = [
-    path("", lambda r: redirect("/portal/")),
+    path("", lambda r: redirect("portal/")),
     path("portal/", include("portal.urls")),
     path("ht/", include("health_check.urls")),
     path("admin/", admin.site.urls),

sample_data/metadata.json

@@ -0,0 +1,376 @@
+[
+{
+    "model": "metadata.property",
+    "pk": 1,
+    "fields": {
+        "name": "Wheel arrangement"
+    }
+},
+{
+    "model": "metadata.property",
+    "pk": 2,
+    "fields": {
+        "name": "Trucks"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 1,
+    "fields": {
+        "name": "Roco",
+        "category": "model",
+        "website": "https://www.roco.cc/",
+        "logo": "images/Roco_logo_ABtacmm.png"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 2,
+    "fields": {
+        "name": "Liliput",
+        "category": "model",
+        "website": "https://liliput.de/",
+        "logo": "images/liliput_logo.png"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 3,
+    "fields": {
+        "name": "Stängl",
+        "category": "model",
+        "website": "https://www.halling.at/",
+        "logo": "images/staengl_logo.png"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 4,
+    "fields": {
+        "name": "Ferro-Train",
+        "category": "model",
+        "website": "https://www.halling.at/",
+        "logo": "images/ferro_logo.png"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 5,
+    "fields": {
+        "name": "Bachmann",
+        "category": "model",
+        "website": "https://bachmanntrains.com/",
+        "logo": "images/Bachmann_bros_logo.png"
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 6,
+    "fields": {
+        "name": "ESU",
+        "category": "model",
+        "website": "https://www.esu.eu/",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 7,
+    "fields": {
+        "name": "Soundtraxx",
+        "category": "model",
+        "website": "https://soundtraxx.com/",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 8,
+    "fields": {
+        "name": "Lima Locomotive Works",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 9,
+    "fields": {
+        "name": "Baldwin Locomotive Works",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 10,
+    "fields": {
+        "name": "Rogers Locomotive and Machine Works",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 11,
+    "fields": {
+        "name": "Porter Locomotive Works",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 12,
+    "fields": {
+        "name": "Krauss & Comp. / Österreichische Siemens-Schuckert Werke",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 13,
+    "fields": {
+        "name": "Simmering-Graz-Pauker",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.manufacturer",
+    "pk": 14,
+    "fields": {
+        "name": "Davenport Locomotive Works",
+        "category": "real",
+        "website": "",
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.company",
+    "pk": 1,
+    "fields": {
+        "name": "ÖBB",
+        "extended_name": "Österreichische Bundesbahnen",
+        "country": "AT",
+        "freelance": false,
+        "logo": "images/ÖBB_Logo_Pflatsch_neu_vQraZ8r.png"
+    }
+},
+{
+    "model": "metadata.company",
+    "pk": 2,
+    "fields": {
+        "name": "SCRR",
+        "extended_name": "Sand Creek Railroad",
+        "country": "US",
+        "freelance": true,
+        "logo": "images/scrr_Ikh9VQ4.png"
+    }
+},
+{
+    "model": "metadata.company",
+    "pk": 3,
+    "fields": {
+        "name": "RhB",
+        "extended_name": "Rhätische Bahn",
+        "country": "CH",
+        "freelance": false,
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.company",
+    "pk": 4,
+    "fields": {
+        "name": "FO",
+        "extended_name": "Furka-Oberalp",
+        "country": "CH",
+        "freelance": false,
+        "logo": ""
+    }
+},
+{
+    "model": "metadata.decoder",
+    "pk": 1,
+    "fields": {
+        "name": "Basic",
+        "manufacturer": 5,
+        "version": "",
+        "interface": 2,
+        "sound": false,
+        "image": ""
+    }
+},
+{
+    "model": "metadata.decoder",
+    "pk": 2,
+    "fields": {
+        "name": "Tsunami",
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+        "version": "1",
+        "interface": 2,
+        "sound": true,
+        "image": ""
+    }
+},
+{
+    "model": "metadata.decoder",
+    "pk": 3,
+    "fields": {
+        "name": "LokPilot Micro",
+        "manufacturer": 6,
+        "version": "v4",
+        "interface": 1,
+        "sound": false,
+        "image": ""
+    }
+},
+{
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+    "pk": 1,
+    "fields": {
+        "scale": "H0e",
+        "ratio": "1:87",
+        "gauge": "9 mm"
+    }
+},
+{
+    "model": "metadata.scale",
+    "pk": 2,
+    "fields": {
+        "scale": "H0",
+        "ratio": "1:87",
+        "gauge": "16.5 mm"
+    }
+},
+{
+    "model": "metadata.scale",
+    "pk": 3,
+    "fields": {
+        "scale": "0n30",
+        "ratio": "1:48",
+        "gauge": "16.5 mm"
+    }
+},
+{
+    "model": "metadata.scale",
+    "pk": 4,
+    "fields": {
+        "scale": "H0m",
+        "ratio": "1:87",
+        "gauge": "11 mm"
+    }
+},
+{
+    "model": "metadata.tag",
+    "pk": 1,
+    "fields": {
+        "name": "Mariazellerbahn",
+        "slug": "mariazellerbahn"
+    }
+},
+{
+    "model": "metadata.tag",
+    "pk": 2,
+    "fields": {
+        "name": "Colorado",
+        "slug": "colorado"
+    }
+},
+{
+    "model": "metadata.tag",
+    "pk": 3,
+    "fields": {
+        "name": "Narrow gauge",
+        "slug": "narrow-gauge"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 1,
+    "fields": {
+        "type": "Electric",
+        "category": "engine"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 2,
+    "fields": {
+        "type": "Diesel",
+        "category": "engine"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 3,
+    "fields": {
+        "type": "Steam",
+        "category": "engine"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 4,
+    "fields": {
+        "type": "EMU",
+        "category": "railcar"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 5,
+    "fields": {
+        "type": "DMU",
+        "category": "railcar"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 6,
+    "fields": {
+        "type": "Electric",
+        "category": "railcar"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 7,
+    "fields": {
+        "type": "Diesel",
+        "category": "railcar"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 8,
+    "fields": {
+        "type": "Passenger",
+        "category": "car"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 9,
+    "fields": {
+        "type": "Freight",
+        "category": "car"
+    }
+},
+{
+    "model": "metadata.rollingstocktype",
+    "pk": 10,
+    "fields": {
+        "type": "Caboose",
+        "category": "equipment"
+    }
+}
+]