1 files changed, 16 insertions, 0 deletions
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())