refactor: create utils file to share in project

This create the utils file in eox-nelp and also move
the `map_instance_attributes_to_dict` to could be used by other
subproject folders.

eox_nelp/course_experience/api/v1/serializers.py

@@ -1,6 +1,4 @@
 """Serializers used for the experience views."""
-from copy import copy
-
 from django.contrib.auth import get_user_model
 from rest_framework_json_api import serializers
 
@@ -13,6 +11,7 @@
     ReportUnit,
 )
 from eox_nelp.edxapp_wrapper.course_overviews import CourseOverview
+from eox_nelp.utils import map_instance_attributes_to_dict
 
 User = get_user_model()
 COURSE_OVERVIEW_EXTRA_FIELD_MAPPING = {"display_name": "display_name"}
@@ -34,7 +33,7 @@ def get_course_extra_attributes(value=None):
         dict: dict object too add course extra fields
     """
     return {
-        "attributes": map_attributes_from_instance_to_dict(value, COURSE_OVERVIEW_EXTRA_FIELD_MAPPING)
+        "attributes": map_instance_attributes_to_dict(value, COURSE_OVERVIEW_EXTRA_FIELD_MAPPING)
     }
 
 
@@ -48,46 +47,8 @@ def get_user_extra_attributes(value=None):
         dict: dict object too add user extra fields
     """
     return {
-        "attributes": map_attributes_from_instance_to_dict(value, USER_EXTRA_FIELD_MAPPING)
-    }
-
-
-def map_attributes_from_instance_to_dict(instance, attributes_mapping):
-    """Create a dictionary that represents some fields or attributes of a instance based on
-    a attributes_mapping dictionary. This dict would have key, values which the key represent the
-    attribute to look in the instance and the value the key name in the output dict.
-    Based in the `attributes_mapping` you should use a dict with the following config:
-    {
-        "key_name": "field_name"
-    }
-    This would check in the instace instance.field_name and the value send it to output dict
-    like {"key_name": instance.field_name}
-    Also its is possible to check nested fields if you declarate the field of instance separated by `__`
-    eg:
-    {
-        "key_name": "field_level1__field_level2"
+        "attributes": map_instance_attributes_to_dict(value, USER_EXTRA_FIELD_MAPPING)
     }
-    This example would check in the instace like instance.field_level1.field_level2 and in the output
-    dict like {"key_name": instance.field_level1.field_level2}
-    Args:
-        instance (instance class): Model or instance of class to retrieved fields.
-        attributes_mapping (dict): Dictionary map that has the fields to search and the keys name to output,
-
-    Returns:
-        instance_dict: dict representing the instance
-    """
-    instance_dict = {}
-    for extra_field, instance_field in attributes_mapping.items():
-        extra_value = None
-        instance_level = copy(instance)
-        for instance_field in instance_field.split("__"):
-            if hasattr(instance_level, instance_field):
-                instance_level = getattr(instance_level, instance_field)
-                extra_value = instance_level
-
-        instance_dict[extra_field] = extra_value
-
-    return instance_dict
 
 
 class ExperienceSerializer(serializers.ModelSerializer):

eox_nelp/utils.py

@@ -0,0 +1,40 @@
+"""Utils that can be used for the plugin project"""
+from copy import copy
+
+
+def map_instance_attributes_to_dict(instance, attributes_mapping):
+    """Create a dictionary that represents some fields or attributes of a instance based on
+    a attributes_mapping dictionary. This dict would have key, values which the key represent the
+    attribute to look in the instance and the value the key name in the output dict.
+    Based in the `attributes_mapping` you should use a dict with the following config:
+    {
+        "key_name": "field_name"
+    }
+    This would check in the instace instance.field_name and the value send it to output dict
+    like {"key_name": instance.field_name}
+    Also its is possible to check nested fields if you declarate the field of instance separated by `__`
+    eg:
+    {
+        "key_name": "field_level1__field_level2"
+    }
+    This example would check in the instace like instance.field_level1.field_level2 and in the output
+    dict like {"key_name": instance.field_level1.field_level2}
+    Args:
+        instance (instance class): Model or instance of class to retrieved fields.
+        attributes_mapping (dict): Dictionary map that has the fields to search and the keys name to output,
+
+    Returns:
+        instance_dict: dict representing the instance
+    """
+    instance_dict = {}
+    for extra_field, instance_field in attributes_mapping.items():
+        extra_value = None
+        instance_level = copy(instance)
+        for instance_field in instance_field.split("__"):
+            if hasattr(instance_level, instance_field):
+                instance_level = getattr(instance_level, instance_field)
+                extra_value = instance_level
+
+        instance_dict[extra_field] = extra_value
+
+    return instance_dict

eox_nelp/views.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-"""The generic views for the exc-core plugin project"""
+"""The generic views for the eox-nelp plugin project"""
 
 from __future__ import unicode_literals