Add support for generic documents (admin only) (#44)

* Add support for generic documents
* Add publish / unpublish actions
* Minor improvements to models properties

ram/bookshelf/admin.py

@@ -263,10 +263,6 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
         )
         return form
 
-    @admin.display(description="Scales")
-    def get_scales(self, obj):
-        return "/".join(s.scale for s in obj.scales.all())
-
     def download_csv(modeladmin, request, queryset):
         header = [
             "Catalog",
@@ -292,10 +288,10 @@ class CatalogAdmin(SortableAdminBase, admin.ModelAdmin):
                 for property in obj.property.all()
             )
             data.append([
-                obj.__str__,
+                obj.__str__(),
                 obj.manufacturer.name,
                 obj.years,
-                obj.get_scales,
+                obj.get_scales(),
                 obj.ISBN,
                 dict(settings.LANGUAGES)[obj.language],
                 obj.number_of_pages,

ram/bookshelf/models.py

@@ -35,6 +35,7 @@ class Author(models.Model):
     def __str__(self):
         return f"{self.last_name}, {self.first_name}"
 
+    @property
     def short_name(self):
         return f"{self.last_name} {self.first_name[0]}."
 
@@ -131,7 +132,7 @@ class Book(BaseBook):
 
     @property
     def authors_list(self):
-        return ", ".join(a.short_name() for a in self.authors.all())
+        return ", ".join(a.short_name for a in self.authors.all())
 
     def get_absolute_url(self):
         return reverse(
@@ -152,7 +153,7 @@ class Catalog(BaseBook):
         ordering = ["manufacturer", "publication_year"]
 
     def __str__(self):
-        scales = self.get_scales
+        scales = self.get_scales()
         return "%s %s %s" % (self.manufacturer.name, self.years, scales)
 
     def get_absolute_url(self):
@@ -161,6 +162,6 @@ class Catalog(BaseBook):
             kwargs={"selector": "catalog", "uuid": self.uuid}
         )
 
-    @property
     def get_scales(self):
         return "/".join([s.scale for s in self.scales.all()])
+    get_scales.short_description = "Scales"