UI: Create UI to select from existing genotype datasets.

2 files changed, 17 insertions, 0 deletions

diff --git a/qc_app/db/__init__.py b/qc_app/db/__init__.py
index 0b48461..270f1a0 100644
--- a/qc_app/db/__init__.py
+++ b/qc_app/db/__init__.py
@@ -5,3 +5,4 @@ from .populations import (
     population_by_id,
     populations_by_species,
     population_by_species_and_id)
+from .datasets import geno_dataset_by_species_and_population
diff --git a/qc_app/db/datasets.py b/qc_app/db/datasets.py
new file mode 100644
index 0000000..3a27706
--- /dev/null
+++ b/qc_app/db/datasets.py
@@ -0,0 +1,16 @@
+"""Functions for accessing the database relating to datasets."""
+import MySQLdb as mdb
+from MySQLdb.cursors import DictCursor
+
+def geno_dataset_by_species_and_population(
+        conn: mdb.Connection,
+        speciesid: int,
+        populationid: int) -> tuple[dict, ...]:
+    """Retrieve all genotypes datasets by species and population"""
+    with conn.cursor(cursorclass=DictCursor) as cursor:
+        cursor.execute(
+            "SELECT gf.* FROM InbredSet AS iset INNER JOIN GenoFreeze AS gf "
+            "ON iset.InbredSetId=gf.InbredSetId "
+            "WHERE iset.SpeciesId=%(sid)s AND iset.InbredSetId=%(pid)s",
+            {"sid": speciesid, "pid": populationid})
+        return tuple(dict(row) for row in cursor.fetchall())