Make categories optional parameter

Change-Id: I5960de1b7e01db491046b89f08fd95324d24551d
Closes-Bug: #1311033

doc/source/specification/murano-repository.rst

@@ -249,8 +249,6 @@ Allowed operations:
         { "op": "replace", "path": "/name", "value": "New name" }
     ]
 
-Note, that replacing categories with empty list is not allowed as well as the removing last category.
-
 **Request 200 (application/murano-packages-json-patch)**
 
 ::
@@ -292,10 +290,6 @@ Note, that replacing categories with empty list is not allowed as well as the re
 *  An attempt to perform operation that is not allowed on the specified path
 *  An attempt to update non-public package by user whose tenant is not an owner of this package
 
-**Response 400**
-
-* An attempt to replace categories with empty list or remove last category
-
 **Response 404**
 
 * An attempt to update package that doesn't exist

murano/api/v1/catalog.py

@@ -91,12 +91,13 @@ def _validate_body(body):
             raise exc.HTTPBadRequest('Uploading file is too large.'
                                      ' The limit is {0} Mb'.format(mb_limit))
 
-    if len(body.keys()) != 2:
+    if len(body.keys()) > 2:
         msg = _("'multipart/form-data' request body should contain "
-                "2 parts: json string and zip archive. Current body consist "
+                "1 or 2 parts: json string and zip archive. Current body "
-                "of {0} part(s)").format(len(body.keys()))
+                "consists of {0} part(s)").format(len(body.keys()))
         LOG.error(msg)
         raise exc.HTTPBadRequest(msg)
+
     file_obj = None
     package_meta = None
     for part in body.values():
@@ -110,10 +111,6 @@ def _validate_body(body):
         msg = _('There is no file package with application description')
         LOG.error(msg)
         raise exc.HTTPBadRequest(msg)
-    if package_meta is None:
-        msg = _('There is no json with meta information about package')
-        LOG.error(msg)
-        raise exc.HTTPBadRequest(msg)
     return file_obj, package_meta
 
 
@@ -128,6 +125,7 @@ class Controller(object):
             { "op": "add", "path": "/tags", "value": [ "foo", "bar" ] }
             { "op": "add", "path": "/categories", "value": [ "foo", "bar" ] }
             { "op": "remove", "path": "/tags" }
+            { "op": "remove", "path": "/categories" }
             { "op": "replace", "path": "/tags", "value": ["foo", "bar"] }
             { "op": "replace", "path": "/is_public", "value": true }
             { "op": "replace", "path": "/description",
@@ -185,11 +183,14 @@ class Controller(object):
         """
         _check_content_type(req, 'multipart/form-data')
         file_obj, package_meta = _validate_body(body)
-        try:
+        if package_meta:
-            jsonschema.validate(package_meta, schemas.PKG_UPLOAD_SCHEMA)
+            try:
-        except jsonschema.ValidationError as e:
+                jsonschema.validate(package_meta, schemas.PKG_UPLOAD_SCHEMA)
-            LOG.exception(e)
+            except jsonschema.ValidationError as e:
-            raise exc.HTTPBadRequest(explanation=e.message)
+                LOG.exception(e)
+                raise exc.HTTPBadRequest(explanation=e.message)
+        else:
+            package_meta = {}
 
         with tempfile.NamedTemporaryFile(delete=False) as tempf:
             LOG.debug("Storing package archive in a temporary file")

murano/api/v1/schemas.py

@@ -37,7 +37,7 @@ PKG_UPLOAD_SCHEMA = {
         },
         "categories": {
             "type": "array",
-            "minItems": 1,
+            "minItems": 0,
             "items": {"type": "string"},
             "uniqueItems": True
         },
@@ -46,7 +46,6 @@ PKG_UPLOAD_SCHEMA = {
         "is_public": {"type": "boolean"},
         "enabled": {"type": "boolean"}
     },
-    "required": ["categories"],
     "additionalProperties": False
 }
 
@@ -62,7 +61,6 @@ PKG_UPDATE_SCHEMA = {
         },
         "categories": {
             "type": "array",
-            "minItems": 1,
             "items": {"type": "string"},
             "uniqueItems": True
         },

murano/db/catalog/api.py

@@ -197,10 +197,6 @@ def _do_remove(package, change):
                     "does not exist.").format(value, path)
             LOG.error(msg)
             raise exc.HTTPNotFound(msg)
-        if path == 'categories' and len(current_values) == 1:
-            msg = _("At least one category should be assigned to the package")
-            LOG.error(msg)
-            raise exc.HTTPBadRequest(msg)
         item_to_remove = find(current_values, lambda i: i.name == value)
         current_values.remove(item_to_remove)
     return package