Resolved enhancement #918

CHANGES.md

@@ -10,6 +10,7 @@
   * RPC execution stuck when NETCONF server closes session unexpectedly ([#914](https://github.com/CiscoDevNet/ydk-gen/issues/914))
   * YDK attempting to send Commit command when 'writable-running' in capabilities ([#915](https://github.com/CiscoDevNet/ydk-gen/issues/915))
   * Max value of range is set to None when not specified in the Yang model ([#916](https://github.com/CiscoDevNet/ydk-gen/issues/916))
+  * YDK MetaInfo should have a field for mandatory leaf ([#918](https://github.com/CiscoDevNet/ydk-gen/issues/918))
 
 ##### Note
   The solution for GitHub issue ([#891](https://github.com/CiscoDevNet/ydk-gen/issues/891)) changed model API. However all model bundles generated with YDK-Gen version 0.7.3 and later are still compatible with core YDK components.

sdk/cpp/core/tests/models/ydktest-sanity@2015-11-17.yang

@@ -731,7 +731,9 @@ module ydktest-sanity {
             }
 
             leaf mtu {
-                type int32;
+                type int32 {
+                    range "10..8000";
+                }
                 mandatory true;
             }
         }
@@ -793,7 +795,6 @@ module ydktest-sanity {
     uses inner-pres;
 
     container runner-2 {
-
        presence "Runner-2 is presence controlled";
        leaf some-leaf {
           type string;

sdk/python/CHANGES.md

@@ -9,6 +9,7 @@
   * Installation documentation for YDK-Py needs an update ([#906](https://github.com/CiscoDevNet/ydk-gen/issues/906))
   * README file for YDK-Py repo is not rendering correctly ([#907](https://github.com/CiscoDevNet/ydk-gen/issues/907))
   * Max value of range is set to None when not specified in the Yang model ([#916](https://github.com/CiscoDevNet/ydk-gen/issues/916))
+  * YDK MetaInfo should have a field for mandatory leaf ([#918](https://github.com/CiscoDevNet/ydk-gen/issues/918))
 
 ##### Note
   The solution for GitHub issue ([#891](https://github.com/CiscoDevNet/ydk-gen/issues/891)) changed model API. However all model bundles generated with YDK-Gen version 0.7.3 and later are still compatible with core YDK components.

sdk/python/core/tests/test_meta.py

@@ -81,6 +81,12 @@ def test_enum_union_meta(self):
             self.assertTrue(len(peer_type_meta_enum_dict) > 0)
             print("\nEnum dictionary:\n    %s" % peer_type_meta_enum_dict)
 
+    def test_mandatory_leaf(self):
+        mand = Runner.Mtus.Mtu()
+        mand.owner = 'test'
+        mand.mtu = 1500
+        mand_meta = mand._meta_info()
+        self.assertTrue(mand_meta.member('mtu').is_mandatory)
 
 if __name__ == '__main__':
     import sys

sdk/python/core/ydk/_core/_dm_meta_info.py

@@ -32,7 +32,8 @@ def __init__(self, name, mtype, ptype, ytype,
                  pmodule_name, clazz_name,
                  prange, pattern, doc,
                  presentation_name, module_name, is_key,
-                 members=None, max_elements=None, min_elements=None, default_value=None, is_config=True, is_presence=False):
+                 members=None, max_elements=None, min_elements=None, default_value=None,
+                 is_config=True, is_presence=False, is_mandatory=False):
         self._name = name
         self._mtype = mtype
         self._ptype = ptype
@@ -55,6 +56,7 @@ def __init__(self, name, mtype, ptype, ytype,
         self._default_value = default_value
         self._is_config = is_config
         self._is_presence = is_presence
+        self._is_mandatory = is_mandatory
 
     @property
     def members(self):
@@ -108,6 +110,14 @@ def min_elements(self):
     def default_value(self):
         return self._default_value
 
+    @property
+    def is_mandatory(self):
+        return self._is_mandatory
+
+    @property
+    def is_presence(self):
+        return self._is_presence
+
     def union_list(self):
         _list = []
         if self._mtype == REFERENCE_UNION:

ydkgen/printer/python/class_meta_printer.py

@@ -167,6 +167,8 @@ def print_meta_class_member(self, meta_info_data, ctx):
             ctx.str(", is_config=False")
         if meta_info_data.is_presence:
             ctx.str(", is_presence=True")
+        if meta_info_data.mandatory:
+            ctx.str(", is_mandatory=True")
         ctx.str('),\n')
 
         ctx.lvl_dec()