schema: add Cube.warnings support (#36576)

bijoe/schemas.py

@@ -20,6 +20,8 @@ import datetime
 import decimal
 import collections
 
+from django.utils import six
+
 from .relative_time import RelativeDate
 
 Point = collections.namedtuple('Point', ['x', 'y'])
@@ -321,7 +323,7 @@ class Join(Base):
 
 class Cube(Base):
     __slots__ = ['name', 'label', 'fact_table', 'json_field', 'key', 'joins', 'dimensions',
-                 'measures']
+                 'measures', 'warnings']
     __types__ = {
         'name': str,
         'label': unicode,
@@ -331,12 +333,14 @@ class Cube(Base):
         'joins': [Join],
         'dimensions': [Dimension],
         'measures': [Measure],
+        'warnings': [six.text_type],
     }
 
     json_field = None
     joins = ()
     dimensions = ()
     measures = ()
+    warnings = ()
 
     def check(self):
         names = collections.Counter()

tests/fixtures/schema1/01_schema.json

@@ -9,6 +9,7 @@
             "label": "Facts 1",
             "fact_table": "\"Facts\"",
             "key": "id",
+            "warnings": ["le champ « pouët » n'est pas bon", "warning2"],
             "joins": [
                 {
                     "name": "innersubcategory",