goal dimension fix rewrite (#67)

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = ep-stats
-version = 2.2.6
+version = 2.2.7
 description = Statistical package to evaluate ab tests in experimentation platform.
 long_description = file: README.md
 long_description_content_type = text/markdown

src/epstats/toolkit/experiment.py

@@ -12,7 +12,7 @@
 from .metric import Metric, SimpleMetric
 from .check import Check
 from .utils import get_utc_timestamp, goals_wide_to_long
-from .parser import EpGoal, UnitType, AggType, Goal
+from .parser import Parser, EpGoal, UnitType, AggType, Goal
 
 from .statistics import Statistics, DEFAULT_CONFIDENCE_LEVEL, DEFAULT_POWER
 from ..prometheus import get_prometheus_metric, Counter as PrometheusCounter
@@ -193,7 +193,13 @@ def _update_dimension_to_value(self):
         can work properly.
         """
 
-        all_goals = [metric_or_check.get_goals() for metric_or_check in self.metrics + self.checks]
+        all_goals = []
+        for metric_or_check in self.metrics + self.checks:
+            for attr in metric_or_check.__dict__.values():
+                if isinstance(attr, Parser):
+                    all_goals.append(attr._nominator_expr.get_goals())
+                    all_goals.append(attr._denominator_expr.get_goals())
+
         all_goals = chain(*all_goals, self._exposure_goals)
 
         for goal in all_goals: