Monitor (#2485)

* [Update]

* [Update] 修改fields

apps/common/fields/serializer.py

@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+#
+
+from rest_framework import serializers
+from django.utils import six
+
+
+__all__ = ['StringIDField', 'StringManyToManyField', 'ChoiceDisplayField']
+
+
+class StringIDField(serializers.Field):
+    def to_representation(self, value):
+        return {"pk": value.pk, "name": value.__str__()}
+
+
+class StringManyToManyField(serializers.RelatedField):
+    def to_representation(self, value):
+        return value.__str__()
+
+
+class ChoiceDisplayField(serializers.ChoiceField):
+    def __init__(self, *args, **kwargs):
+        super(ChoiceDisplayField, self).__init__(*args, **kwargs)
+        self.choice_strings_to_display = {
+            six.text_type(key): value for key, value in self.choices.items()
+        }
+
+    def to_representation(self, value):
+        if value is None:
+            return value
+        return {
+            'value': self.choice_strings_to_values.get(six.text_type(value), value),
+            'display': self.choice_strings_to_display.get(six.text_type(value), value),
+        }
+
+
+class DictField(serializers.DictField):
+    def to_representation(self, value):
+        if not value or not isinstance(value, dict):
+            value = {}
+        return super().to_representation(value)