sql: do not fail indexing on missing block (#54384)

tests/test_sql.py

@@ -419,6 +419,23 @@ def test_sql_get_ids_from_query():
     assert set(ids) == set([id4])
 
 
+def test_sql_fts_index_with_missing_block():
+    data_class = formdef.data_class(mode='sql')
+    data_class.wipe()
+
+    formdata = data_class()
+    formdata.data = {
+        '7': {
+            'data': [
+                {'1': 'some other example having foo', '2': 'boat', '2_display': 'Yatch'},
+                {'1': 'bar', '2': 'plane', '2_display': 'Cessna'},
+            ]
+        }
+    }
+    BlockDef.wipe()
+    formdata.store()
+
+
 def test_sql_rollback_on_error():
     data_class = formdef.data_class(mode='sql')
     data_class.wipe()

wcs/sql.py

@@ -2103,8 +2103,12 @@ class SqlDataMixin(SqlMixin):
             for field in self._formdef.get_all_fields():
                 if field.key == 'block' and self.data.get(field.id):
                     for data in self.data[field.id].get('data'):
-                        for subfield in field.block.fields:
-                            yield subfield, data
+                        try:
+                            for subfield in field.block.fields:
+                                yield subfield, data
+                        except KeyError:
+                            # block doesn't exist anymore
+                            break
                 else:
                     data = self.data
                     yield field, self.data