Migrations: Add migration for 'phenotype_resources' table

* migrations/auth/20221110_03_ka3W0-create-phenotype-resources-table.py: new
  migration
* tests/unit/auth/test_create_table_migrations.py: test for new migration

2 files changed, 25 insertions, 1 deletions

diff --git a/migrations/auth/20221110_03_ka3W0-create-phenotype-resources-table.py b/migrations/auth/20221110_03_ka3W0-create-phenotype-resources-table.py
new file mode 100644
index 0000000..d241f77
--- /dev/null
+++ b/migrations/auth/20221110_03_ka3W0-create-phenotype-resources-table.py
@@ -0,0 +1,23 @@
+"""
+Create 'phenotype_resources' table
+
+NOTE: A "phenotype resource" can only ever be linked to one and only one "resource object"
+      A "resource object" can be linked to one or more "phenotype resource".
+"""
+
+from yoyo import step
+
+__depends__ = {'20221110_02_z1dWf-create-mrna-resources-table'}
+
+steps = [
+    step(
+        """
+        CREATE TABLE IF NOT EXISTS phenotype_resources(
+            resource_id TEXT NOT NULL,
+            trait_id TEXT NOT NULL UNIQUE,
+            PRIMARY KEY(resource_id, trait_id),
+            FOREIGN KEY(resource_id) REFERENCES resources(resource_id)
+        ) WITHOUT ROWID
+        """,
+        "DROP TABLE IF EXISTS phenotype_resources")
+]
diff --git a/tests/unit/auth/test_create_table_migrations.py b/tests/unit/auth/test_create_table_migrations.py
index c8184e5..c84e017 100644
--- a/tests/unit/auth/test_create_table_migrations.py
+++ b/tests/unit/auth/test_create_table_migrations.py
@@ -16,7 +16,8 @@ migrations_and_tables = (
     ("20221108_02_wxTr9-create-privileges-table.py", "privileges"),
     ("20221108_03_Pbhb1-create-resource-categories-table.py", "resource_categories"),
     ("20221110_01_WtZ1I-create-resources-table.py", "resources"),
-    ("20221110_02_z1dWf-create-mrna-resources-table.py", "mrna_resources"))
+    ("20221110_02_z1dWf-create-mrna-resources-table.py", "mrna_resources"),
+    ("20221110_03_ka3W0-create-phenotype-resources-table.py", "phenotype_resources"))
 
 @pytest.mark.unit_test
 @pytest.mark.parametrize("migration_file,the_table", migrations_and_tables)