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"""Functions for accessing the database relating to species populations."""
import MySQLdb as mdb
from MySQLdb.cursors import DictCursor
def population_by_id(conn: mdb.Connection, population_id) -> dict:
"""Get the grouping/population by id."""
with conn.cursor(cursorclass=DictCursor) as cursor:
cursor.execute("SELECT * FROM InbredSet WHERE InbredSetId=%s",
(population_id,))
return cursor.fetchone()
def population_by_species_and_id(
conn: mdb.Connection, species_id, population_id) -> dict:
"""Retrieve a population by its identifier and species."""
with conn.cursor(cursorclass=DictCursor) as cursor:
cursor.execute("SELECT * FROM InbredSet WHERE SpeciesId=%s AND Id=%s",
(species_id, population_id))
return cursor.fetchone()
def populations_by_species(conn: mdb.Connection, speciesid) -> tuple:
"Retrieve group (InbredSet) information from the database."
with conn.cursor(cursorclass=DictCursor) as cursor:
query = "SELECT * FROM InbredSet WHERE SpeciesId=%s"
cursor.execute(query, (speciesid,))
return tuple(cursor.fetchall())
return tuple()
def save_population(conn: mdb.Connection, population_details: dict) -> dict:
"""Save the population details to the db."""
with conn.cursor(cursorclass=DictCursor) as cursor:
cursor.execute("SELECT MAX(Id) AS last_id FROM InbredSet")
new_id = cursor.fetchone()["last_id"] + 1
cursor.execute(
"INSERT INTO InbredSet("
"Id, InbredSetId, InbredSetName, Name, SpeciesId, FullName, "
"MenuOrderId, Description"
") "
"VALUES ("
"%(Id)s, %(InbredSetId)s, %(InbredSetName)s, %(Name)s, "
"%(SpeciesId)s, %(FullName)s, %(MenuOrderId)s, %(Description)s"
")",
{
"Id": new_id,
"InbredSetId": new_id,
"MenuOrderId": 0,
**population_details
})
return {**population_details, "population_id": new_id}
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