refactor: Link landscapes directly to shared files, links and visualizations

terraso_backend/apps/collaboration/graphql/memberships.py

@@ -21,9 +21,6 @@
 
 from ..models import Membership, MembershipList
 
-# from apps.graphql.schema.commons import TerrasoConnection
-
-
 logger = structlog.get_logger(__name__)
 
 

terraso_backend/apps/core/migrations/0046_shared_resource.py

@@ -0,0 +1,106 @@
+# Copyright © 2023 Technology Matters
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see https://www.gnu.org/licenses/.
+
+
+# Generated by Django 4.2.6 on 2023-10-13 22:10
+
+import uuid
+
+import django.db.models.deletion
+import rules.contrib.models
+from django.conf import settings
+from django.db import migrations, models
+
+import apps.core.models.commons
+
+
+def data_entries_to_shared_resources(apps, schema_editor):
+    ContentType = apps.get_model("contenttypes", "ContentType")
+    LandscapeGroup = apps.get_model("core", "LandscapeGroup")
+    SharedResource = apps.get_model("core", "SharedResource")
+    DataEntry = apps.get_model("shared_data", "DataEntry")
+    data_entries = DataEntry.objects.all()
+    for data_entry in data_entries:
+        groups = data_entry.groups.all()
+        for group in groups:
+            landscape_group = LandscapeGroup.objects.filter(
+                group=group, is_default_landscape_group=True
+            ).first()
+            if landscape_group is None:
+                SharedResource.objects.create(
+                    source_content_type=ContentType.objects.get_for_model(data_entry),
+                    source_object_id=data_entry.id,
+                    target_content_type=ContentType.objects.get_for_model(group),
+                    target_object_id=group.id,
+                )
+            else:
+                SharedResource.objects.create(
+                    source_content_type=ContentType.objects.get_for_model(data_entry),
+                    source_object_id=data_entry.id,
+                    target_content_type=ContentType.objects.get_for_model(
+                        landscape_group.landscape
+                    ),
+                    target_object_id=landscape_group.landscape.id,
+                )
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("core", "0045_taxonomyterms_ecosystems_renamed"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="SharedResource",
+            fields=[
+                ("deleted_at", models.DateTimeField(db_index=True, editable=False, null=True)),
+                ("deleted_by_cascade", models.BooleanField(default=False, editable=False)),
+                (
+                    "id",
+                    models.UUIDField(
+                        default=uuid.uuid4, editable=False, primary_key=True, serialize=False
+                    ),
+                ),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                ("source_object_id", models.UUIDField()),
+                ("target_object_id", models.UUIDField()),
+                (
+                    "source_content_type",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="source_content_type",
+                        to="contenttypes.contenttype",
+                    ),
+                ),
+                (
+                    "target_content_type",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="target_content_type",
+                        to="contenttypes.contenttype",
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ["created_at"],
+                "get_latest_by": "-created_at",
+                "abstract": False,
+            },
+            bases=(rules.contrib.models.RulesModelMixin, models.Model),
+        ),
+        migrations.RunPython(data_entries_to_shared_resources),
+    ]

terraso_backend/apps/core/models/__init__.py

@@ -17,6 +17,7 @@
 from .commons import BaseModel, SlugModel
 from .groups import Group, GroupAssociation, Membership
 from .landscapes import Landscape, LandscapeDevelopmentStrategy, LandscapeGroup
+from .shared_resources import SharedResource
 from .taxonomy_terms import TaxonomyTerm
 from .users import User, UserPreference
 
@@ -33,4 +34,5 @@
     "User",
     "UserPreference",
     "TaxonomyTerm",
+    "SharedResource",
 ]

terraso_backend/apps/core/models/groups.py

@@ -14,13 +14,15 @@
 # along with this program. If not, see https://www.gnu.org/licenses/.
 from typing import Literal, Union
 
+from django.contrib.contenttypes.fields import GenericRelation
 from django.db import models, transaction
 from django.utils.translation import gettext_lazy as _
 from safedelete.models import SafeDeleteManager
 
 from apps.core import permission_rules as perm_rules
 
 from .commons import BaseModel, SlugModel, validate_name
+from .shared_resources import SharedResource
 from .users import User
 
 
@@ -94,6 +96,10 @@ class Group(SlugModel):
         default=DEFAULT_MEMERBSHIP_TYPE,
     )
 
+    shared_resources = GenericRelation(
+        SharedResource, content_type_field="target_content_type", object_id_field="target_object_id"
+    )
+
     field_to_slug = "name"
 
     class Meta(SlugModel.Meta):

terraso_backend/apps/core/models/landscapes.py

@@ -15,6 +15,7 @@
 
 import structlog
 from dirtyfields import DirtyFieldsMixin
+from django.contrib.contenttypes.fields import GenericRelation
 from django.db import models, transaction
 
 from apps.core import permission_rules as perm_rules
@@ -26,6 +27,7 @@
 
 from .commons import BaseModel, SlugModel, validate_name
 from .groups import Group
+from .shared_resources import SharedResource
 from .users import User
 
 logger = structlog.get_logger(__name__)
@@ -85,6 +87,10 @@ class Landscape(SlugModel, DirtyFieldsMixin):
     profile_image_description = models.TextField(blank=True, default="")
     center_coordinates = models.JSONField(blank=True, null=True)
 
+    shared_resources = GenericRelation(
+        SharedResource, content_type_field="target_content_type", object_id_field="target_object_id"
+    )
+
     field_to_slug = "name"
 
     class Meta(SlugModel.Meta):

terraso_backend/apps/core/models/shared_resources.py

@@ -0,0 +1,39 @@
+# Copyright © 2023 Technology Matters
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see https://www.gnu.org/licenses/.
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
+from django.db import models
+
+from apps.core.models import BaseModel
+
+
+class SharedResource(BaseModel):
+    """
+    This model represents a shared resource.
+    Source represents the resource that is being shared (Example: DataEntry).
+    Target represents the resource that is receiving the shared resource (Example: Landscape).
+    """
+
+    source = GenericForeignKey("source_content_type", "source_object_id")
+    source_content_type = models.ForeignKey(
+        ContentType, on_delete=models.CASCADE, related_name="source_content_type"
+    )
+    source_object_id = models.UUIDField()
+
+    target = GenericForeignKey("target_content_type", "target_object_id")
+    target_content_type = models.ForeignKey(
+        ContentType, on_delete=models.CASCADE, related_name="target_content_type"
+    )
+    target_object_id = models.UUIDField()