Added function to add valid range in CMDOWS file.

Former-commit-id: 45d113be421c78e90c472adced599b9225478250

kadmos/cmdows/cmdows.py

@@ -388,7 +388,7 @@ class CMDOWS(object):
         :param description: description of file content
         :type description: str
         :param timestamp: (optional) date and time of creation
-        :type timestamp: datetime
+        :type timestamp: str
         :param fileVersion: version of the file
         :type fileVersion: str
         :param cmdowsVersion: version of the xsd schema
@@ -922,6 +922,34 @@ class CMDOWS(object):
                 self.add_subelement(el_pr[0], eltag)
         return self.root.xpath(local_xpath)[0]
 
+    def add_valid_ranges(self, elem_or_uid, minimum=None, maximum=None, list_range=None):
+        """Method to add the list ranges element to an existing element.
+
+        :param elem_or_uid: element or the UID of an element
+        :type elem_or_uid: str or ExtendedElement
+        :param minimum: minimum value for valid range
+        :type minimum: float
+        :param maximum: maximum value for valid range
+        :type maximum: float
+        :param list_range: list of optional values
+        :type list_range: list
+        """
+        if isinstance(elem_or_uid, str):
+            elem = self.get_element_of_uid(elem_or_uid)
+        else:
+            elem = elem_or_uid
+        vr_elem = elem.add('validRanges')
+        if minimum is not None or maximum is not None:
+            lr_elem = vr_elem.add('limitRange')
+            if minimum is not None:
+                lr_elem.add('minimum', float(minimum))
+            if maximum is not None:
+                lr_elem.add('maximum', float(maximum))
+        if list_range is not None:
+            list_range_elem = vr_elem.add('listRange')
+            for item in list_range:
+                list_range_elem.add('listRangeItem', str(item))
+
     def append_element_to_xpath_element(self, xpath, element_tag, attrib=None):
         """Method to append a new element at an XPath location.