Merge branch 'master' of https://github.com/spulec/moto into 0.4.1-threadsafe

* 'master' of https://github.com/spulec/moto: (25 commits)
  Add @zkourouma to authors.
  0.4.2
  Fix bug where listener certificate was not being saved correctly when creating an elb. Added test to cover that case.
  [dynamodb2] adds lookup method to Table class
  Add IAM list_groups and list_groups_for_user. Closes #343.
  Fix for deleting Route53 record sets with set identifiers. Closes #342.
  Use dummy date instead of an invalid date
  Adding support for comments on hosted zones.
  Add availability zone support to Subnets created via CloudFormation
  Make availability zone dynamic in Subnet Response templates
  Add filter "availabilityZone" to DescribeSubnets and add availability zone support too
  allow starting without reseting
  Fix bug with empty string for instance vpc_id. Closes #337.
  Fix default security group description.
  Update responses.py
  Add @mrucci to authors.
  Fix merge conflicts.
  Add support for ELB attributes.
  cast to int when doing math.
  General cleanup.
  ...

moto/dynamodb2/models.py

@@ -122,7 +122,7 @@ class Item(object):
 
 class Table(object):
 
-    def __init__(self, table_name, schema=None, attr=None, throughput=None, indexes=None):
+    def __init__(self, table_name, schema=None, attr=None, throughput=None, indexes=None, global_indexes=None):
         self.name = table_name
         self.attr = attr
         self.schema = schema
@@ -143,6 +143,7 @@ class Table(object):
             self.throughput = throughput
         self.throughput["NumberOfDecreasesToday"] = 0
         self.indexes = indexes
+        self.global_indexes = global_indexes if global_indexes else []
         self.created_at = datetime.datetime.now()
         self.items = defaultdict(dict)
 
@@ -158,6 +159,7 @@ class Table(object):
                 'KeySchema': self.schema,
                 'ItemCount': len(self),
                 'CreationDateTime': unix_time(self.created_at),
+                'GlobalSecondaryIndexes': [index for index in self.global_indexes],
             }
         }
         return results
@@ -171,6 +173,24 @@ class Table(object):
                 count += 1
         return count
 
+    @property
+    def hash_key_names(self):
+        keys = [self.hash_key_attr]
+        for index in self.global_indexes:
+            for key in index['KeySchema']:
+                if key['KeyType'] == 'HASH':
+                    keys.append(key['AttributeName'])
+        return keys
+
+    @property
+    def range_key_names(self):
+        keys = [self.range_key_attr]
+        for index in self.global_indexes:
+            for key in index['KeySchema']:
+                if key['KeyType'] == 'RANGE':
+                    keys.append(key['AttributeName'])
+        return keys
+
     def put_item(self, item_attrs):
         hash_value = DynamoType(item_attrs.get(self.hash_key_attr))
         if self.has_range_key:
@@ -268,6 +288,16 @@ class Table(object):
                 results.append(result)
         return results, scanned_count, last_page
 
+    def lookup(self, *args, **kwargs):
+        if not self.schema:
+            self.describe()
+        for x, arg in enumerate(args):
+            kwargs[self.schema[x].name] = arg
+        ret = self.get_item(**kwargs)
+        if not ret.keys():
+            return None
+        return ret
+
 
 class DynamoDBBackend(BaseBackend):
 
@@ -293,12 +323,21 @@ class DynamoDBBackend(BaseBackend):
             return None
         return table.put_item(item_attrs)
 
-    def get_table_keys_name(self, table_name):
+    def get_table_keys_name(self, table_name, keys):
+        """
+        Given a set of keys, extracts the key and range key
+        """
         table = self.tables.get(table_name)
         if not table:
             return None, None
         else:
-            return table.hash_key_attr, table.range_key_attr
+            hash_key = range_key = None
+            for key in keys:
+                if key in table.hash_key_names:
+                    hash_key = key
+                elif key in table.range_key_names:
+                    range_key = key
+            return hash_key, range_key
 
     def get_keys_value(self, table, keys):
         if table.hash_key_attr not in keys or (table.has_range_key and table.range_key_attr not in keys):