feat: add CheckoutsSerializer and TreeSerializer

backend/kernelCI_app/serializers.py

@@ -0,0 +1,34 @@
+from rest_framework import serializers
+from kernelCI_app.models import Checkouts
+from kernelCI_app.utils import get_visible_record_config
+
+
+class CheckoutsSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Checkouts
+        fields = [
+            'field_timestamp', 'id', 'origin', 'tree_name',
+            'git_repository_url', 'git_commit_hash', 'git_commit_name',
+            'git_repository_branch', 'patchset_files', 'patchset_hash',
+            'message_id', 'comment', 'start_time', 'contacts',
+            'log_url', 'log_excerpt', 'valid', 'misc'
+        ]
+
+
+class TreeSerializer(CheckoutsSerializer):
+    build_status = serializers.SerializerMethodField(method_name="get_build_status")
+    test_status = serializers.SerializerMethodField(method_name="get_test_status")
+
+    def get_config(self, obj):
+        return get_visible_record_config('checkouts', obj.id)
+
+    def get_build_status(self, obj):
+        config = self.get_config(obj)
+        return config.get('build_status')
+
+    def get_test_status(self, obj):
+        config = self.get_config(obj)
+        return config.get('test_status')
+
+    class Meta(CheckoutsSerializer.Meta):
+        fields = CheckoutsSerializer.Meta.fields + ['build_status', 'test_status']