Export účastníků umí sloupeček s e-maily školních garantů

Closes #278.

mo/web/org_contest.py

@@ -607,7 +607,7 @@ def org_generic_list(round_id: Optional[int] = None, hier_id: Optional[int] = No
             filter=filter, count=count, action_form=action_form,
         )
     else:
-        table = make_contestant_table(query, round)
+        table = make_contestant_table(query, round, add_school_orgs=True)
         return table.send_as(format, args=request.args)
 
 
@@ -618,6 +618,7 @@ contest_list_columns = (
     Column(key='email',         name='email',       title='E-mail'),
     Column(key='school',        name='skola',       title='Škola'),
     Column(key='school_code',   name='kod_skoly',   title='Kód školy'),
+    Column(key='school_orgs',   name='skol_garanti', title='E-maily školních garantů'),
     Column(key='grade',         name='rocnik',      title='Ročník'),
     Column(key='born_year',     name='rok_naroz',   title='Rok naroz.'),
     Column(key='place_code',    name='kod_soutez_mista',  title='Sout. místo'),
@@ -665,17 +666,37 @@ def get_contestants_query(
     return query
 
 
-def make_contestant_table(query: Query, round: db.Round, add_checkbox: bool = False, add_contest_column: bool = False):
+def get_school_orgs(query_result: List[Tuple[db.Participation, db.Participant, db.Contest]]) -> Dict[int, List[db.User]]:
+    school_ids = set(pant.school for _, pant, _ in query_result)
+
+    user_roles = (db.get_session()
+                  .query(db.UserRole)
+                  .filter_by(role=db.RoleType.garant_skola)
+                  .filter(db.UserRole.place_id.in_(school_ids))
+                  .options(joinedload(db.UserRole.user))
+                  .all())
+
+    out: Dict[int, List[db.User]] = {sid: [] for sid in school_ids}
+
+    for ur in user_roles:
+        out[ur.place_id].append(ur.user)
+
+    return out
+
+
+def make_contestant_table(query: Query, round: db.Round, add_checkbox: bool = False, add_contest_column: bool = False, add_school_orgs: bool = False) -> Table:
     ctants = query.all()
 
+    if add_school_orgs:
+        school_orgs = get_school_orgs(ctants)
+
     rows: List[Row] = []
     for pion, pant, ct in ctants:
         u = pion.user
         html_attr = {
             'class': 'state-' + pion.state.name
         }
-        rows.append(Row(
-            keys={
+        row_keys = {
             'sort_key': u.sort_key(),
             'user_id': u.user_id,
             'first_name': cell_pion_link(u, pion.contest_id, u.first_name),
@@ -689,9 +710,11 @@ def make_contestant_table(query: Query, round: db.Round, add_checkbox: bool = Fa
             'place_code': cell_contest_link(ct, pion.place),
             'status': pion.state.friendly_name(),
             'checkbox': CellCheckbox('checked', u.user_id, False),
-            },
-            html_attr=html_attr,
-        ))
+        }
+        if add_school_orgs:
+            assert pant.school in school_orgs
+            row_keys['school_orgs'] = ', '.join([user.email for user in school_orgs[pant.school]])
+        rows.append(Row(keys=row_keys, html_attr=html_attr))
 
     rows.sort(key=lambda r: r.keys['sort_key'])