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dcc/metadata/admin.py

@@ -1,40 +1,46 @@
 from django.contrib import admin
 from metadata.models import (
-    Decoder, Scale, Manufacturer, Company, Tag, RollingStockType)
+    Decoder,
+    Scale,
+    Manufacturer,
+    Company,
+    Tag,
+    RollingStockType,
+)
 
 
 @admin.register(Decoder)
 class DecoderAdmin(admin.ModelAdmin):
-    readonly_fields = ('image_thumbnail',)
-    list_display = ('__str__', 'interface')
-    list_filter = ('manufacturer', 'interface')
+    readonly_fields = ("image_thumbnail",)
+    list_display = ("__str__", "interface")
+    list_filter = ("manufacturer", "interface")
 
 
 @admin.register(Scale)
 class ScaleAdmin(admin.ModelAdmin):
-    list_display = ('scale', 'ratio', 'gauge')
-    list_filter = ('ratio', 'gauge')
+    list_display = ("scale", "ratio", "gauge")
+    list_filter = ("ratio", "gauge")
 
 
 @admin.register(Company)
 class CompanyAdmin(admin.ModelAdmin):
-    readonly_fields = ('logo_thumbnail',)
-    list_display = ('name', 'country')
+    readonly_fields = ("logo_thumbnail",)
+    list_display = ("name", "country")
     list_filter = list_display
 
 
 @admin.register(Manufacturer)
 class ManufacturerAdmin(admin.ModelAdmin):
-    readonly_fields = ('logo_thumbnail',)
+    readonly_fields = ("logo_thumbnail",)
 
 
 @admin.register(Tag)
 class TagAdmin(admin.ModelAdmin):
-    readonly_fields = ('slug',)
-    list_display = ('name', 'slug')
+    readonly_fields = ("slug",)
+    list_display = ("name", "slug")
 
 
 @admin.register(RollingStockType)
 class RollingStockTypeAdmin(admin.ModelAdmin):
-    list_display = ('__str__',)
-    list_filter = ('type', 'category')
+    list_display = ("__str__",)
+    list_filter = ("type", "category")

dcc/metadata/apps.py

@@ -2,5 +2,5 @@ from django.apps import AppConfig
 
 
 class MetadataConfig(AppConfig):
-    default_auto_field = 'django.db.models.BigAutoField'
-    name = 'metadata'
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "metadata"

dcc/metadata/models.py

@@ -9,16 +9,14 @@ from dcc.utils import get_image_preview, slugify
 class Manufacturer(models.Model):
     name = models.CharField(max_length=128, unique=True)
     website = models.URLField(blank=True)
-    logo = models.ImageField(
-        upload_to='images/',
-        null=True,
-        blank=True)
+    logo = models.ImageField(upload_to="images/", null=True, blank=True)
 
     def __str__(self):
         return self.name
 
     def logo_thumbnail(self):
         return get_image_preview(self.logo.url)
+
     logo_thumbnail.short_description = "Preview"
 
 
@@ -27,45 +25,37 @@ class Company(models.Model):
     extended_name = models.CharField(max_length=128, blank=True)
     country = CountryField()
     freelance = models.BooleanField(default=False)
-    logo = models.ImageField(
-        upload_to='images/',
-        null=True,
-        blank=True)
+    logo = models.ImageField(upload_to="images/", null=True, blank=True)
 
     class Meta:
         verbose_name_plural = "Companies"
-        ordering = ['name']
+        ordering = ["name"]
 
     def __str__(self):
         return self.name
 
     def logo_thumbnail(self):
         return get_image_preview(self.logo.url)
+
     logo_thumbnail.short_description = "Preview"
 
 
 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)
     version = models.CharField(max_length=64, blank=True)
     interface = models.PositiveSmallIntegerField(
-        choices=settings.DECODER_INTERFACES,
-        null=True,
-        blank=True
+        choices=settings.DECODER_INTERFACES, null=True, blank=True
     )
     sound = models.BooleanField(default=False)
-    image = models.ImageField(
-        upload_to='images/',
-        null=True,
-        blank=True)
+    image = models.ImageField(upload_to="images/", null=True, blank=True)
 
     def __str__(self):
         return "{0} - {1}".format(self.manufacturer, self.name)
 
     def image_thumbnail(self):
         return get_image_preview(self.image.url)
+
     image_thumbnail.short_description = "Preview"
 
 
@@ -75,7 +65,7 @@ class Scale(models.Model):
     gauge = models.CharField(max_length=16, blank=True)
 
     class Meta:
-        ordering = ['scale']
+        ordering = ["scale"]
 
     def __str__(self):
         return str(self.scale)
@@ -97,10 +87,11 @@ def tag_pre_save(sender, instance, **kwargs):
 class RollingStockType(models.Model):
     type = models.CharField(max_length=64)
     category = models.CharField(
-        max_length=64, choices=settings.ROLLING_STOCK_TYPES)
+        max_length=64, choices=settings.ROLLING_STOCK_TYPES
+    )
 
     class Meta(object):
-        unique_together = ('category', 'type')
+        unique_together = ("category", "type")
 
     def __str__(self):
         return "{0} {1}".format(self.type, self.category)

dcc/metadata/serializers.py

@@ -1,7 +1,12 @@
 from rest_framework import serializers
 from metadata.models import (
-    RollingStockType, Scale, Manufacturer,
-    Company, Decoder, Tag)
+    RollingStockType,
+    Scale,
+    Manufacturer,
+    Company,
+    Decoder,
+    Tag,
+)
 
 
 class RollingStockTypeSerializer(serializers.ModelSerializer):