refactor(apis_metainfo)!: drop Source model

The `Source` model was introduced to store information about where an
entity was imported from. This can easily be replaced by a custom field
in the ontology. Therefore the `Source` model was removed.

Closes: #227

apis_core/api_routers.py

@@ -246,7 +246,7 @@ def generic_serializer_creation_factory():
             if x in entity_field_name_list:
                 exclude_lst_fin.append(x)
         if entity_str.lower() == "text":
-            exclude_lst_fin.extend(["kind", "source"])
+            exclude_lst_fin.extend(["kind"])
         for f in entity._meta.get_fields():
             if f.__class__.__name__ == "ManyToManyField":
                 prefetch_rel.append(f.name)

apis_core/apis_entities/migrations/0003_remove_tempentityclass_source.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.10 on 2023-09-21 07:05
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("apis_entities", "0002_remove_tempentityclass_text"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="tempentityclass",
+            name="source",
+        ),
+    ]

apis_core/apis_entities/models.py

@@ -105,9 +105,6 @@ class TempEntityClass(AbstractEntity):
     # TODO RDF: Make Text also a Subclass of RootObject
     collection = models.ManyToManyField("apis_metainfo.Collection")
     status = models.CharField(max_length=100)
-    source = models.ForeignKey(
-        "apis_metainfo.Source", blank=True, null=True, on_delete=models.SET_NULL
-    )
     references = models.TextField(blank=True, null=True)
     notes = models.TextField(blank=True, null=True)
     published = models.BooleanField(default=False)

apis_core/apis_entities/templates/apis_entities/detail_views/detail_generic.html

@@ -175,10 +175,6 @@ <h3>
 
                   {% block info-metadata %}
                     <table class="table table-bordered table-hover">
-                      <tr>
-                        <th>Source</th>
-                        <td>{{ object.source }}</td>
-                      </tr>
                       <tr>
                         <th>Collection(s)</th>
                         <td>

apis_core/apis_metainfo/admin.py

@@ -1,7 +1,6 @@
 from django.contrib import admin
 
-from .models import Source, Collection, Uri
+from .models import Collection, Uri
 
-admin.site.register(Source)
 admin.site.register(Collection)
 admin.site.register(Uri)

apis_core/apis_metainfo/migrations/0007_delete_source.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.10 on 2023-09-21 07:05
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("apis_entities", "0003_remove_tempentityclass_source"),
+        ("apis_metainfo", "0006_delete_text"),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name="Source",
+        ),
+    ]

apis_core/apis_metainfo/models.py

@@ -108,25 +108,6 @@ def duplicate(self):
         return duplicate
 
 
-@reversion.register()
-class Source(models.Model):
-    """Holds information about entities and their relations"""
-
-    orig_filename = models.CharField(max_length=255, blank=True)
-    indexed = models.BooleanField(default=False)
-    pubinfo = models.CharField(max_length=400, blank=True)
-    author = models.CharField(max_length=255, blank=True)
-    orig_id = models.PositiveIntegerField(blank=True, null=True)
-
-    def __str__(self):
-        if self.author != "" and self.orig_filename != "":
-            return "{}, stored by {}".format(self.orig_filename, self.author)
-        elif self.orig_filename != "":
-            return "{}".format(self.orig_filename)
-        else:
-            return "(ID: {})".format(self.id)
-
-
 @reversion.register()
 class Collection(models.Model):
     """Allows to group entities and relation."""

apis_core/apis_metainfo/serializers.py

@@ -1,7 +1,7 @@
 from django.contrib.contenttypes.models import ContentType
 from rest_framework import serializers
 
-from .models import Collection, Source, Text, Uri
+from .models import Collection, Text, Uri
 from apis_core.apis_entities.models import TempEntityClass
 
 
@@ -41,16 +41,6 @@ class Meta:
         model = Text
 
 
-class SourceSerializer(serializers.HyperlinkedModelSerializer):
-    url = serializers.HyperlinkedIdentityField(
-        view_name="apis:apis_api:source-detail", lookup_field="pk"
-    )
-
-    class Meta:
-        fields = "__all__"
-        model = Source
-
-
 class UriSerializer(serializers.HyperlinkedModelSerializer):
     url = serializers.HyperlinkedIdentityField(
         view_name="apis:apis_api:uri-detail", lookup_field="pk"

apis_core/apis_metainfo/test_models.py

@@ -1,7 +1,7 @@
 from django.test import TestCase
 from django.contrib.contenttypes.models import ContentType
 
-from .models import RootObject, Source, Uri
+from .models import RootObject, Uri
 
 
 class ModelTestCase(TestCase):
@@ -17,19 +17,6 @@ def test_root_object(self):
         self.assertEquals(str(rfoo), "foo")
         self.assertEquals(str(rnone), "no name provided")
 
-    def test_source(self):
-        s = Source.objects.create()
-        s_fname = Source.objects.create(orig_filename="file_name_of_source")
-        s_fname_aut = Source.objects.create(
-            orig_filename="file_name_of_source", author="Alice"
-        )
-        self.assertEquals(str(s), f"(ID: {s.id})")
-        self.assertEquals(str(s_fname), "file_name_of_source")
-        self.assertEquals(
-            str(s_fname_aut),
-            "file_name_of_source, stored by Alice",
-        )
-
     def test_uri(self):
         ufoo = Uri.objects.create()
         self.assertEquals(str(ufoo), "None")

apis_core/utils/test_caching.py

@@ -6,7 +6,6 @@
     "apis_metainfo": [
         "Collection",
         "RootObject",
-        "Source",
         "Uri",
     ],
     "apis_vocabularies": [