WIP: add helper functions to errata connector

- add helper to get list of releases by product either id or name
- add helper option 1 to retrieve advisories by release id (using
- add helper option 2 to retrieve advisories by release id (using _filter)

Related: red-hat-storage#132

errata_tool/connector.py

@@ -261,7 +261,7 @@ def _processResponse(self, r):
                               str(r.status_code))
 
 
-    def filter(self, endpoint, filter_arg, **kwargs):
+    def _filter(self, endpoint, filter_arg, **kwargs):
         """format and generate filter request
         expose a general filter helper method to format kwargs up
         as parameters for ET filter request.  Then return generated
@@ -280,3 +280,44 @@ def filter(self, endpoint, filter_arg, **kwargs):
             url = url + '&format=json'
         print(url)
         return self._get(url)
+
+    def get_releases_for_product(self, product_name_or_id, return_ids_only=True):
+        """search for and return list of releases by name or id of product"""
+        args = {'is_active':'true', 'enabled':'true'}
+
+        try:
+            args['id'] = int(product_name_or_id)
+        except ValueError:
+            args['name'] = product_name_or_id
+
+        data = self._filter('/api/v1/releases', 'filter', **args)
+        if return_ids_only:
+            return [i['id'] for i in data['data']]
+
+        return data
+
+    def get_open_advisories_for_release(self, release_id):
+        data = self._get('/errata/errata_for_release/{0}.json'.format(release_id))
+
+        ADVISORY_STATES = ('NEW_FILES', 'QE', 'REL_PREP', 'PUSH_READY')
+        advisory_ids = set()
+
+        for advisory_result in data:
+            if advisory_result['status'] in ADVISORY_STATES:
+                advisory_ids.add(advisory_result['id'])
+        return list(advisory_ids)
+
+    def get_open_advisories_for_release_filter(self, release_id, return_ids_only=True):
+        """Return list of open advisories for a release either id's or json summary"""
+
+        data = self._filter(
+            '/errata', 'errata_filter[filter_params]',
+            show_type_RHBA=1, show_type_RHEA=1, show_type_RHSA=1,
+            show_state_NEW_FILES=1, show_state_QE=1, show_state_REL_PREP=1,
+            show_state_PUSH_READY=1, open_closed_option='exclude',
+            release=release_id)
+
+        if return_ids_only:
+            return [i['id'] for i in data]
+
+        return data