Revamp the library for 5.0.0.

.travis.yml

@@ -1,17 +1,25 @@
 sudo: false
 language: python
-python:
-    - 2.7
-    - 3.4
-    - 3.5
-    - 3.6
+matrix:
+  include:
+    - python: 2.7
+    - python: 3.4
+    - python: 3.5
+    - python: 3.6
+    - python: 3.7
+      dist: xenial
+      sudo: true
 services:
     - docker
 before_install:
-    - docker run --name arango -d -p 8529:8529 -e ARANGO_ROOT_PASSWORD=passwd arangodb/arangodb:3.4.0
+    - docker run --name arango -d -p 8529:8529 -e ARANGO_ROOT_PASSWORD=passwd arangodb/arangodb:3.5.0
     - docker cp tests/static/service.zip arango:/tmp/service.zip
 install:
-    - pip install flake8 mock pytest pytest-cov python-coveralls sphinx sphinx_rtd_theme
+    - pip install flake8 mock
+    - pip install pytest==3.5.1
+    - pip install pytest-cov==2.5.1
+    - pip install python-coveralls==2.9.1
+    - pip install sphinx sphinx_rtd_theme
     - pip install .
 script:
     - python -m flake8

README.rst

@@ -22,11 +22,11 @@
     :target: https://coveralls.io/github/joowani/python-arango?branch=master
     :alt: Test Coverage
 
-.. image:: https://img.shields.io/github/issues/joowani/python-arango.svg   
+.. image:: https://img.shields.io/github/issues/joowani/python-arango.svg
     :target: https://github.com/joowani/python-arango/issues
     :alt: Issues Open
 
-.. image:: https://img.shields.io/badge/license-MIT-blue.svg   
+.. image:: https://img.shields.io/badge/license-MIT-blue.svg
     :target: https://raw.githubusercontent.com/joowani/python-arango/master/LICENSE
     :alt: MIT License
 
@@ -37,23 +37,25 @@ Welcome to the GitHub page for **python-arango**, a Python driver for ArangoDB_.
 Announcements
 =============
 
-- Python-arango version `4.0.0`_ is now out!
-- Please see the releases_ page for latest updates.
+- Python-arango version `5.0.0`_ is finally up! This release supports ArangoDB
+  version 3.5+ only. It also breaks backward-compatibility and you must make
+  changes in your application code. Please see the releases_ page for details.
 
 Features
 ========
 
-- Clean Pythonic interface.
-- Lightweight.
-- High ArangoDB REST API coverage.
+- Pythonic interface
+- Lightweight
+- High API coverage
 
 Compatibility
 =============
 
-- Python versions 2.7, 3.4, 3.5 and 3.6 are supported.
-- Python-arango 4.x supports ArangoDB 3.3+ (recommended).
-- Python-arango 3.x supports ArangoDB 3.0 ~ 3.2 only.
-- Python-arango 2.x supports ArangoDB 1.x ~ 2.x only.
+- Python versions 2.7, 3.4, 3.5, 3.6 and 3.7 are supported
+- Python-arango 5.x supports ArangoDB 3.5+
+- Python-arango 4.x supports ArangoDB 3.3 ~ 3.4 only
+- Python-arango 3.x supports ArangoDB 3.0 ~ 3.2 only
+- Python-arango 2.x supports ArangoDB 1.x ~ 2.x only
 
 Installation
 ============
@@ -83,7 +85,7 @@ Here is a simple usage example:
     from arango import ArangoClient
 
     # Initialize the client for ArangoDB.
-    client = ArangoClient(protocol='http', host='localhost', port=8529)
+    client = ArangoClient(hosts='http://localhost:8529')
 
     # Connect to "_system" database as root user.
     sys_db = client.db('_system', username='root', password='passwd')
@@ -117,7 +119,7 @@ Here is another example with graphs:
     from arango import ArangoClient
 
     # Initialize the client for ArangoDB.
-    client = ArangoClient(protocol='http', host='localhost', port=8529)
+    client = ArangoClient(hosts='http://localhost:8529')
 
     # Connect to "test" database as root user.
     db = client.db('test', username='root', password='passwd')
@@ -169,7 +171,7 @@ Contributing
 Please take a look at this page_ before submitting a pull request. Thanks!
 
 .. _ArangoDB: https://www.arangodb.com
-.. _4.0.0: https://github.com/joowani/python-arango/releases/tag/4.0.0
+.. _5.0.0: https://github.com/joowani/python-arango/releases/tag/5.0.0
 .. _releases: https://github.com/joowani/python-arango/releases
 .. _PyPi: https://pypi.python.org/pypi/python-arango
 .. _GitHub: https://github.com/joowani/python-arango

arango/api.py

@@ -15,7 +15,6 @@ class APIWrapper(object):
     def __init__(self, connection, executor):
         self._conn = connection
         self._executor = executor
-        self._is_transaction = self.context == 'transaction'
 
     @property
     def db_name(self):

arango/aql.py

@@ -1,7 +1,5 @@
 from __future__ import absolute_import, unicode_literals
 
-from json import dumps
-
 __all__ = ['AQL', 'AQLQueryCache']
 
 from arango.api import APIWrapper
@@ -42,7 +40,7 @@ def __repr__(self):
         return '<AQL in {}>'.format(self._conn.db_name)
 
     # noinspection PyMethodMayBeStatic
-    def _format_tracking(self, body):
+    def _format_tracking_properties(self, body):
         """Format the tracking properties.
 
         :param body: Response body.
@@ -237,10 +235,10 @@ def execute(self,
             enterprise version of ArangoDB.
         :type satellite_sync_wait: int | float
         :param read_collections: Names of collections read during query
-            execution. Required for :doc:`transactions <transaction>`.
+            execution. This parameter is deprecated.
         :type read_collections: [str | unicode]
         :param write_collections: Names of collections written to during query
-            execution. Required for :doc:`transactions <transaction>`.
+            execution. This parameter is deprecated.
         :type write_collections: [str | unicode]
         :param stream: If set to True, query is executed in streaming fashion:
             query result is not stored server-side but calculated on the fly.
@@ -310,17 +308,10 @@ def execute(self,
             data['options'] = options
         data.update(options)
 
-        command = 'db._query({}, {}, {}).toArray()'.format(
-            dumps(query),
-            dumps(bind_vars),
-            dumps(data),
-        ) if self._is_transaction else None
-
         request = Request(
             method='post',
             endpoint='/_api/cursor',
             data=data,
-            command=command,
             read=read_collections,
             write=write_collections
         )
@@ -425,7 +416,7 @@ def tracking(self):
         def response_handler(resp):
             if not resp.is_success:
                 raise AQLQueryTrackingGetError(resp, request)
-            return self._format_tracking(resp.body)
+            return self._format_tracking_properties(resp.body)
 
         return self._execute(request, response_handler)
 
@@ -465,7 +456,7 @@ def set_tracking(self,
         def response_handler(resp):
             if not resp.is_success:
                 raise AQLQueryTrackingSetError(resp, request)
-            return self._format_tracking(resp.body)
+            return self._format_tracking_properties(resp.body)
 
         return self._execute(request, response_handler)
 
@@ -563,6 +554,28 @@ class AQLQueryCache(APIWrapper):
     def __repr__(self):
         return '<AQLQueryCache in {}>'.format(self._conn.db_name)
 
+    # noinspection PyMethodMayBeStatic
+    def _format_cache_properties(self, body):
+        """Format the query cache properties.
+
+        :param body: Response body.
+        :type body: dict
+        :return: Formatted body.
+        :rtype: dict
+        """
+        body.pop('code', None)
+        body.pop('error', None)
+
+        if 'maxResults' in body:
+            body['max_results'] = body.pop('maxResults')
+        if 'maxResultsSize' in body:
+            body['max_results_size'] = body.pop('maxResultsSize')
+        if 'maxEntrySize' in body:
+            body['max_entry_size'] = body.pop('maxEntrySize')
+        if 'includeSystem' in body:
+            body['include_system'] = body.pop('includeSystem')
+        return body
+
     def properties(self):
         """Return the query cache properties.
 
@@ -578,30 +591,47 @@ def properties(self):
         def response_handler(resp):
             if not resp.is_success:
                 raise AQLCachePropertiesError(resp, request)
-            return {
-                'mode': resp.body['mode'],
-                'limit': resp.body['maxResults']
-            }
+            return self._format_cache_properties(resp.body)
 
         return self._execute(request, response_handler)
 
-    def configure(self, mode=None, limit=None):
+    def configure(self,
+                  mode=None,
+                  max_results=None,
+                  max_results_size=None,
+                  max_entry_size=None,
+                  include_system=None):
         """Configure the query cache properties.
 
         :param mode: Operation mode. Allowed values are "off", "on" and
             "demand".
         :type mode: str | unicode
-        :param limit: Max number of query results to be stored.
-        :type limit: int
+        :param max_results: Max number of query results stored per
+            database-specific cache.
+        :type max_results: int
+        :param max_results_size: Max cumulative size of query results stored
+            per database-specific cache.
+        :type max_results_size: int
+        :param max_entry_size: Max entry size of each query result stored per
+            database-specific cache.
+        :type max_entry_size: int
+        :param include_system: Store results of queries in system collections.
+        :type include_system: bool
         :return: Query cache properties.
         :rtype: dict
         :raise arango.exceptions.AQLCacheConfigureError: If operation fails.
         """
         data = {}
         if mode is not None:
             data['mode'] = mode
-        if limit is not None:
-            data['maxResults'] = limit
+        if max_results is not None:
+            data['maxResults'] = max_results
+        if max_results_size is not None:
+            data['maxResultsSize'] = max_results_size
+        if max_entry_size is not None:
+            data['maxEntrySize'] = max_entry_size
+        if include_system is not None:
+            data['includeSystem'] = include_system
 
         request = Request(
             method='put',
@@ -612,10 +642,7 @@ def configure(self, mode=None, limit=None):
         def response_handler(resp):
             if not resp.is_success:
                 raise AQLCacheConfigureError(resp, request)
-            return {
-                'mode': resp.body['mode'],
-                'limit': resp.body['maxResults']
-            }
+            return self._format_cache_properties(resp.body)
 
         return self._execute(request, response_handler)
 
@@ -642,7 +669,7 @@ def clear(self):
         """Clear the query cache.
 
         :return: True if query cache was cleared successfully.
-        :rtype: dict
+        :rtype: bool
         :raise arango.exceptions.AQLCacheClearError: If operation fails.
         """
         request = Request(