Store model_version details regardless of model version configuration

Closes #285 (closed)

arkindex_worker/worker/base.py

@@ -148,6 +148,13 @@ class BaseWorker:
         # there is at least one available sqlite database either given or in the parent tasks
         self.use_cache = False
 
+        # model_version_id will be updated in configure() using the worker_run's model version
+        # or in configure_for_developers() from the environment
+        self.model_version_id = None
+        # model_details will be updated in configure() using the worker_run's model version
+        # or in configure_for_developers() from the environment
+        self.model_details = {}
+
         # task_parents will be updated in configure_cache() if the cache is supported,
         # if the task ID is set and if no database is passed as argument
         self.task_parents = []
@@ -257,15 +264,15 @@ class BaseWorker:
 
         # Load model version configuration when available
         model_version = worker_run.get("model_version")
-        if model_version and model_version.get("configuration"):
+        if model_version:
             logger.info("Loaded model version configuration from WorkerRun")
-            self.model_configuration.update(model_version.get("configuration"))
+            self.model_configuration.update(model_version.get("configuration", {}))
 
             # Set model_version ID as worker attribute
             self.model_version_id = model_version.get("id")
 
             # Set model details as worker attribute
-            self.model_details = model_version.get("model")
+            self.model_details = model_version.get("model", {})
 
         # Retrieve initial configuration from API
         self.config = worker_version["configuration"].get("configuration", {})