SIENTIAPDE-1579: Switched from replace logic to validation + mapping

model_manager/utils/models/train_model_params.py

@@ -1,6 +1,8 @@
 from dataclasses import dataclass
 from typing import Any
 
+from model_manager.sientia.models import validate_frontend_date_format
+
 # Model name constants
 MODEL_LINEAR_REGRESSION = 'Linear Regression'
 MODEL_POLYNOMIAL_REGRESSION = 'Polynomial Regression'
@@ -217,6 +219,7 @@ class TrainModelParams:
         self._validate_intervals_and_dates()
         self._validate_limits()
         self._validate_required_strings()
+        self._validate_date_format()
 
     def _validate_numeric_ranges(self) -> None:
         """Validate numeric parameters are within acceptable ranges."""
@@ -327,3 +330,8 @@ class TrainModelParams:
 
         if not self.experiment_name.strip():
             raise ValueError('experiment_name cannot be empty or whitespace')
+
+    def _validate_date_format(self) -> None:
+        """Validate date_format is one of the allowed frontend formats when set."""
+        if self.date_format:
+            validate_frontend_date_format(self.date_format)