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-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
- 17. Interpretation of Sections 15 and 16.
-
- If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
- END OF TERMS AND CONDITIONS
-
- How to Apply These Terms to Your New Programs
-
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) <year> <name of author>
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
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-notice like this when it starts in an interactive mode:
-
- <program> Copyright (C) <year> <name of author>
- This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
- You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
- The GNU General Public License does not permit incorporating your program
-into proprietary programs. If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library. If this is what you want to do, use the GNU Lesser General
-Public License instead of this License. But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+The MIT License
+
+Copyright (c) 2010-2016 Google, Inc. http://angularjs.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
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+
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+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
View
649 README.mkd
@@ -1,122 +1,653 @@
-ParsePy
-=======
+Note: As of May 13, 2016, this repository (`milesrichardson/ParsePy)` is the
+most up-to-date and active python client for the Parse API. It supports self-hosted
+`parse-server` via the REST API. Note that some features will not work with parse-server,
+if they are not supported by the REST API (e.g. push).
-**ParsePy** is a Python client for the [Parse REST API](https://www.parse.com/docs/rest). It provides Python object mapping for Parse objects with methods to save, update, and delete objects, as well as an interface for querying stored objects.
+See the section below, "using with self-hosted parse-server," for instructions.
-Basic Usage
+parse_rest
+==========
+
+**parse_rest** is a Python client for the [Parse REST
+ API](https://www.parse.com/docs/rest). It provides:
+
+ - Python object mapping for Parse objects with methods to save,
+ update, and delete objects, as well as an interface for querying
+ stored objects.
+ - Complex data types provided by Parse with no python equivalent
+ - User authentication, account creation** (signup) and querying.
+ - Cloud code integration
+ - Installation querying
+ - push
+ - Roles/ACLs**
+ - **PLANNED/TODO**: Image/File type support
+
+
+** for applications with access to the MASTER KEY, see details below.
+
+
+Installation
+------------
+
+The easiest way to install this package is by downloading or
+cloning this repository:
+
+ pip install git+https://github.com/milesrichardson/ParsePy.git
+
+Note: The version on [PyPI](http://pypi.python.org/pypi) is not
+up-to-date. The code is still under lots of changes and the stability
+of the library API - though improving - is not guaranteed. Please
+file any issues that you may find if documentation/application.
+
+
+Using with self-hosted `parse-server`
+-------------
+
+To use the library with self-hosted parse-server, set the environment variable
+`PARSE_API_ROOT` before importing the module.
+
+Example:
+
+~~~~~ {python}
+import os
+os.environ["PARSE_API_ROOT"] = "http://your_server.com:1337/parse"
+
+# Everything else same as usual
+
+from parse_rest.datatypes import Function, Object, GeoPoint
+from parse_rest.connection import register
+from parse_rest.query import QueryResourceDoesNotExist
+from parse_rest.connection import ParseBatcher
+from parse_rest.core import ResourceRequestBadRequest, ParseError
+
+APPLICATION_ID = '...'
+REST_API_KEY = '...'
+MASTER_KEY = '...'
+
+register(APPLICATION_ID, REST_API_KEY, master_key=MASTER_KEY)
+~~~~~
+
+
+Testing
+-------
+
+To run the tests, you need to:
+
+* create a `settings_local.py` file in your local directory with three
+ variables that define a sample Parse application to use for testing:
+
+~~~~~ {python}
+APPLICATION_ID = "APPLICATION_ID_HERE"
+REST_API_KEY = "REST_API_KEY_HERE"
+MASTER_KEY = "MASTER_KEY_HERE"
+~~~~~
+
+Note Do **not** give the keys of an existing application with data you want to
+keep: create a new one instead. The test suite will erase any existing CloudCode
+in the app and may accidentally replace or change existing objects.
+
+* install the [Parse CloudCode tool](https://www.parse.com/docs/cloud_code_guide)
+
+You can then test the installation by running the following command:
+
+ # test all
+ python -m unittest parse_rest.tests
+
+ # or test individually
+ python -m unittest parse_rest.tests.TestObject.testCanCreateNewObject
+
+Usage
-----------
-Let's get everything set up first. You'll need to give **ParsePy** your _Application Id_ and _Master Key_ (available from your Parse dashboard) in order to get access to your data.
+Before the first interaction with the Parse server, you need to
+register your access credentials. You can do so by calling
+`parse_rest.connection.register`.
+
+Before getting to code, a word of caution. You need to consider how your application is
+meant to be deployed. Parse identifies your application though
+different keys (available from your Parse dashboard) that are used in
+every request done to their servers.
+
+If your application is supposed to be distributed to third parties
+(such as a desktop program to be installed), you SHOULD NOT put the
+master key in your code. If your application is meant to be running in
+systems that you fully control (e.g, a web app that needs to integrate
+with Parse to provide functionality to your client), you may also add
+your *master key*.
+
+~~~~~ {python}
+from parse_rest.connection import register
+register(<application_id>, <rest_api_key>[, master_key=None])
+~~~~~
+
+Once your application calls `register`, you will be able to read, write
+and query for data at Parse.
+
+
+Data types
+----------
+
+Parse allows us to get data in different base types that have a direct
+python equivalent (strings, integers, floats, dicts, lists) as well as
+some more complex ones (e.g.:`File`, `Image`, `Date`). It also allows
+us to define objects with schema-free structure, and save them, as
+well to query them later by their attributes. `parse_rest` is
+handy as a way to serialize/deserialize these objects transparently.
+
+The Object type
+---------------
+
+
+In theory, you are able to simply instantiate a `Object` and do
+everything that you want with it, save it on Parse, retrieve it later,
+etc.
~~~~~ {python}
->>> import ParsePy
->>> ParsePy.APPLICATION_ID = "your application id"
->>> ParsePy.MASTER_KEY = "your master key here"
+from parse_rest.datatypes import Object
+
+first_object = Object()
~~~~~
-To create a new object of the Parse class _GameScore_:
+In practice, you will probably want different classes for your
+application to allow for a better organization in your own code.
+So, let's say you want to make an online game, and you want to save
+the scoreboard on Parse. For that, you decide to define a class called
+`GameScore`. All you need to do to create such a class is to define a
+Python class that inherts from `parse_rest.datatypes.Object`:
~~~~~ {python}
->>> gameScore = ParsePy.ParseObject("GameScore")
->>> gameScore.score = 1337
->>> gameScore.playerName = "Sean Plott"
->>> gameScore.cheatMode = False
+from parse_rest.datatypes import Object
+
+class GameScore(Object):
+ pass
~~~~~
-As you can see, we add new properties simply by assigning values to our _ParseObject_'s attributes. Supported data types are any type that can be serialized by JSON and Python's _datetime.datetime_ object. (Binary data and references to other _ParseObject_'s are also supported, as we'll see in a minute.)
+You can also create an Object subclass by string name, with the `Object.factory`
+method:
+
+~~~~~ {python}
+from parse_rest.datatypes import Object
+
+myClassName = "GameScore"
+myClass = Object.factory(myClassName)
+
+print myClass
+# <class 'parse_rest.datatypes.GameScore'>
+print myClass.__name__
+# GameScore
+~~~~~
+
+You can then instantiate your new class with some parameters:
+
+~~~~~ {python}
+gameScore = GameScore(score=1337, player_name='John Doe', cheat_mode=False)
+~~~~~
+
+You can change or set new parameters afterwards:
+
+~~~~ {python}
+gameScore.cheat_mode = True
+gameScore.level = 20
+~~~~
To save our new object, just call the save() method:
~~~~~ {python}
->>> gameScore.save()
+gameScore.save()
~~~~~
-If we want to make an update, just call save() again after modifying an attribute to send the changes to the server:
+If we want to make an update, just call save() again after modifying
+an attribute to send the changes to the server:
~~~~~ {python}
->>> gameScore.score = 2061
->>> gameScore.save()
+gameScore.score = 2061
+gameScore.save()
+~~~~~
+
+You can also increment the score in a single API query:
+
+~~~~~ {python}
+gameScore.increment("score")
~~~~~
Now that we've done all that work creating our first Parse object, let's delete it:
~~~~~ {python}
->>> gameScore.delete()
+gameScore.delete()
~~~~~
That's it! You're ready to start saving data on Parse.
Object Metadata
---------------
-The methods objectId(), createdAt(), and updatedAt() return metadata about a _ParseObject_ that cannot be modified through the API:
+The attributes objectId, createdAt, and updatedAt show metadata about
+a _Object_ that cannot be modified through the API:
~~~~~ {python}
->>> gameScore.objectId()
-'xxwXx9eOec'
->>> gameScore.createdAt()
-datetime.datetime(2011, 9, 16, 21, 51, 36, 784000)
->>> gameScore.updatedAt()
-datetime.datetime(2011, 9, 118, 14, 18, 23, 152000)
+gameScore.objectId
+# 'xxwXx9eOec'
+gameScore.createdAt
+# datetime.datetime(2011, 9, 16, 21, 51, 36, 784000)
+gameScore.updatedAt
+# datetime.datetime(2011, 9, 118, 14, 18, 23, 152000)
~~~~~
Additional Datatypes
--------------------
-If we want to store data in a ParseObject, we should wrap it in a ParseBinaryDataWrapper. The ParseBinaryDataWrapper behaves just like a string, and inherits all of _str_'s methods.
+We've mentioned that Parse supports more complex types, most of these
+types are also supported on Python (dates, files). So these types can
+be converted transparently when you use them. For the types that Parse
+provided and Python does not support natively, `parse_rest` provides
+the appropiates classes to work with them. One such example is
+`GeoPoint`, where you store latitude and longitude
+
+~~~~~ {python}
+from parse_rest.datatypes import Object, GeoPoint
+
+class Restaurant(Object):
+ pass
+
+restaurant = Restaurant(name="Los Pollos Hermanos")
+# coordinates as floats.
+restaurant.location = GeoPoint(latitude=12.0, longitude=-34.45)
+restaurant.save()
+~~~~~
+
+We can store a reference to another Object by assigning it to an attribute:
+
+~~~~~ {python}
+from parse_rest.datatypes import Object
+
+class CollectedItem(Object):
+ pass
+
+collectedItem = CollectedItem(type="Sword", isAwesome=True)
+collectedItem.save() # we have to save it before it can be referenced
+
+gameScore.item = collectedItem
+~~~~~
+
+Batch Operations
+----------------
+
+For the sake of efficiency, Parse also supports creating, updating or deleting objects in batches using a single query, which saves on network round trips. You can perform such batch operations using the `connection.ParseBatcher` object:
+
+~~~~~ {python}
+from parse_rest.connection import ParseBatcher
+
+score1 = GameScore(score=1337, player_name='John Doe', cheat_mode=False)
+score2 = GameScore(score=1400, player_name='Jane Doe', cheat_mode=False)
+score3 = GameScore(score=2000, player_name='Jack Doe', cheat_mode=True)
+scores = [score1, score2, score3]
+
+batcher = ParseBatcher()
+batcher.batch_save(scores)
+batcher.batch_delete(scores)
+~~~~~
+
+You can also mix `save` and `delete` operations in the same query as follows (note the absence of parentheses after each `save` or `delete`):
~~~~~ {python}
->>> gameScore.victoryImage = ParsePy.ParseBinaryDataWrapper('\x03\xf3\r\n\xc7\x81\x7fNc ... ')
+batcher.batch([score1.save, score2.save, score3.delete])
~~~~~
-We can store a reference to another ParseObject by assigning it to an attribute:
+If an error occurs during one or multiple of the operations, it will not affect
+the execution of the remaining operations. Instead, the `batcher.batch_save` or
+`batcher.batch_delete` or `batcher.batch` will raise a `ParseBatchError`
+(child of `ParseError`) exception with `.message` set to a *list* of the errors
+encountered. For example:
~~~~~ {python}
->>> collectedItem = ParsePy.ParseObject("CollectedItem")
->>> collectedItem.type = "Sword"
->>> collectedItem.isAwesome = True
->>> collectedItem.save() # we have to save it before it can be referenced
+# Batch save a list of two objects:
+# dupe_object is a duplicate violating a unique key constraint
+# dupe_object2 is a duplicate violating a unique key constraint
+# new_object is a new object satisfying the unique key constraint
+#
+# dupe_object and dupe_object2 will fail to save, and new_object will save successfully
+
+dupe_object = list(MyClass.Query.all().limit(2))[0]
+dupe_object2 = list(MyClass.Query.all().limit(2))[1]
+new_object = MyClass(some_column=11111)
+objects = [dupe_object + new_object]
+
+batcher = ParseBatcher()
+batcher.batch_save(objects)
+~~~~~
+
+will raise an exception:
->>> gameScore.item = collectedItem
+~~~~~ {python}
+Traceback (most recent call last):
+ File "<console>", line 1, in <module>
+ File "/Users/miles/ParsePy/parse_rest/connection.py", line 199, in batch_save
+ self.batch(o.save for o in objects)
+ File "/Users/miles/ParsePy/parse_rest/connection.py", line 195, in batch
+ raise core.ParseBatchError(batched_errors)
+
+ParseBatchError: [{u'code': 11000, u'error': u'E11000 duplicate key error index: myapp.MyClass.$my_column_1 dup key: { : 555555 }'}, {u'code': 11000, u'error': u'E11000 duplicate key error index: myapp.MyClass.$my_column_1 dup key: { : 44444 }'}]
~~~~~
+And `CRUCIALLY`, the objectId field of the NON-duplicate object will be correctly set:
+
+~~~~~ {python}
+>>> #batch_save as above...
+>>> print objects
+[<MyClass:gOHuhPbGZJ>, <MyClass:None>, <MyClass:None>]
+~~~~~
+
+Therefore, one way to tell which objects saved successfully after a batch save operation
+is to check which objects have `objectId` set.
+
Querying
--------
-To retrieve an object with a Parse class of _GameScore_ and an _objectId_ of _xxwXx9eOec_, run:
+Any class inheriting from `parse_rest.Object` has a `Query`
+object. With it, you can perform queries that return a set of objects
+or that will return a object directly.
+
+
+### Retrieving a single object
+
+To retrieve an object with a Parse class of `GameScore` and an
+`objectId` of `xxwXx9eOec`, run:
+
+~~~~~ {python}
+gameScore = GameScore.Query.get(objectId="xxwXx9eOec")
+~~~~~
+
+### Working with Querysets
+
+To query for sets of objects, we work with the concept of
+`Queryset`s. If you are familiar with Django you will be right at home
+\- but be aware that is not a complete implementation of their
+Queryset or Database backend.
+
+The Query object contains a method called `all()`, which will return a
+basic (unfiltered) Queryset. It will represent the set of all objects
+of the class you are querying.
+
+~~~~~ {python}
+all_scores = GameScore.Query.all()
+~~~~~
+
+Querysets are _lazily evaluated_, meaning that it will only actually
+make a request to Parse when you either call a method that needs to
+operate on the data, or when you iterate on the Queryset.
+
+#### Filtering
+
+Like Django, Querysets can have constraints added by appending the name of the filter operator to name of the attribute:
+
+~~~~~ {python}
+high_scores = GameScore.Query.filter(score__gte=1000)
+~~~~~
+
+You can similarly perform queries on GeoPoint objects by using the `nearSphere` operator:
+
+~~~~~ {python}
+my_loc = GeoPoint(latitude=12.0, longitude=-34.55)
+nearby_restaurants = Restaurant.Query.filter(location__nearSphere=my_loc)
+~~~~~
+
+You can see the [full list of constraint operators defined by
+Parse](https://www.parse.com/docs/rest#queries-constraints)
+
+
+#### Sorting/Ordering
+
+Querysets can also be ordered. Just define the name of the attribute
+that you want to use to sort. Appending a "-" in front of the name
+will sort the set in descending order.
~~~~~ {python}
->>> gameScore = ParsePy.ParseQuery("GameScore").get("xxwXx9eOec")
+low_to_high_score_board = GameScore.Query.all().order_by("score")
+high_to_low_score_board = GameScore.Query.all().order_by("-score") # or order_by("score", descending=True)
~~~~~
-We can also run more complex queries to retrieve a range of objects. For example, if we want to get a list of _GameScore_ objects with scores between 1000 and 2000 ordered by _playerName_, we would call:
+#### Limit/Skip
+
+If you don't want the whole set, you can apply the
+limit and skip function. Let's say you have a have classes
+representing a blog, and you want to implement basic pagination:
~~~~~ {python}
->>> query = ParsePy.ParseQuery("GameScore")
->>> query = query.gte("score", 1000).lt("score", 2000).order("playerName")
->>> GameScores = query.fetch()
+posts = Post.Query.all().order_by("-publication_date")
+page_one = posts.limit(10) # Will return the most 10 recent posts.
+page_two = posts.skip(10).limit(10) # Will return posts 11-20
~~~~~
-Notice how queries are built by chaining filter functions. The available filter functions are:
+#### Related objects
+
+You can specify "join" attributes to get related object with single query.
-* **Less Than**
- * lt(_parameter_name_, _value_)
-* **Less Than Or Equal To**
- * lte(_parameter_name_, _value_)
-* **Greater Than**
- * gt(_parameter_name_, _value_)
-* **Greater Than Or Equal To**
- * gte(_parameter_name_, _value_)
-* **Not Equal To**
- * ne(_parameter_name_, _value_)
-* **Limit**
- * limit(_count_)
-* **Skip**
- * skip(_count_)
+~~~~~ {python}
+posts = Post.Query.all().select_related("author", "editor")
+~~~~~
+
+#### Composability/Chaining of Querysets
+
+The example above can show the most powerful aspect of Querysets, that
+is the ability to make complex querying and filtering by chaining calls:
+
+Most importantly, Querysets can be chained together. This allows you
+to make more complex queries:
+
+~~~~~ {python}
+posts_by_joe = Post.Query.all().filter(author='Joe').order_by("view_count")
+popular_posts = posts_by_joe.gte(view_count=200)
+~~~~~
+
+#### Iterating on Querysets
+
+After all the querying/filtering/sorting, you will probably want to do
+something with the results. Querysets can be iterated on:
+
+~~~~~ {python}
+posts_by_joe = Post.Query.all().filter(author='Joe').order_by('view_count')
+for post in posts_by_joe:
+ print post.title, post.publication_date, post.text
+~~~~~
-We can also order the results using:
+**TODO**: Slicing of Querysets
-* **Order**
- * order(_parameter_name_, _decending_=False)
-That's it! This is a first try at a Python library for Parse, and is probably not bug-free. If you run into any issues, please get in touch -- parsepy@paulkastner.com. Thanks!
+Users
+-----
+
+You can sign up, log in, modify or delete users as well, using the `parse_rest.user.User` class. You sign a user up as follows:
+
+~~~~~ {python}
+from parse_rest.user import User
+
+u = User.signup("dhelmet", "12345", phone="555-555-5555")
+~~~~~
+
+or log in an existing user with
+
+~~~~~ {python}
+u = User.login("dhelmet", "12345")
+~~~~~
+
+You can also request a password reset for a specific user with
+
+~~~~~ {python}
+User.request_password_reset(email="dhelmet@gmail.com")
+~~~~~
+
+If you'd like to log in a user with Facebook or Twitter, and have already obtained an access token (including a user ID and expiration date) to do so, you can log in like this:
+
+~~~~ {python}
+authData = {"facebook": {"id": fbID, "access_token": access_token,
+ "expiration_date": expiration_date}}
+u = User.login_auth(authData)
+~~~~
+
+Once a `User` has been logged in, it saves its session so that it can be edited or deleted:
+
+~~~~~ {python}
+u.highscore = 300
+u.save()
+u.delete()
+~~~~~
+
+To get the current user from a Parse session:
+
+~~~~~ {python}
+from parse_rest.connection import SessionToken, register
+
+# Acquire a valid parse session somewhere
+# Example: token = request.session.get('session_token')
+
+# Method 1: Using a `with` statement
+# Do this to isolate use of session token in this block only
+with SessionToken(token):
+ me = User.current_user()
+
+# Method 2: register your parse connection with `session_token` parameter
+# Do this to use the session token for all subsequent queries
+register(PARSE_APPID, PARSE_APIKEY, session_token=token)
+me = User.current_user()
+~~~~~
+
+
+Push
+---------------
+
+You can also send notifications to your users using [Parse's Push functionality](https://parse.com/products/push), through the Push object:
+
+~~~~~ {python}
+from parse_rest.installation import Push
+
+Push.message("The Giants won against the Mets 2-3.",
+ channels=["Giants", "Mets"])
+~~~~~
+
+This will push a message to all users subscribed to the "Giants" and "Mets" channels. Your alert can be restricted based on [Advanced Targeting](https://www.parse.com/docs/push_guide#sending-queries/REST) by specifying the `where` argument:
+
+~~~~~ {python}
+Push.message("Willie Hayes injured by own pop fly.",
+ channels=["Giants"], where={"injuryReports": True})
+
+Push.message("Giants scored against the A's! It's now 2-2.",
+ channels=["Giants"], where={"scores": True})
+~~~~~
+
+If you wish to include more than a simple message in your notification, such as incrementing the app badge in iOS or adding a title in Android, use the `alert` method and pass the actions in a dictionary:
+
+~~~~~ {python}
+Push.alert({"alert": "The Mets scored! The game is now tied 1-1.",
+ "badge": "Increment", "title": "Mets Score"}, channels=["Mets"],
+ where={"scores": True})
+~~~~~
+
+
+Cloud Functions
+---------------
+
+Parse offers [CloudCode](https://www.parse.com/docs/cloud_code_guide), which has the ability to upload JavaScript functions that will be run on the server. You can use the `parse_rest` client to call those functions.
+
+The CloudCode guide describes how to upload a function to the server. Let's say you upload the following `main.js` script:
+
+~~~~~ {javascript}
+Parse.Cloud.define("hello", function(request, response) {
+ response.success("Hello world!");
+});
+
+
+Parse.Cloud.define("averageStars", function(request, response) {
+ var query = new Parse.Query("Review");
+ query.equalTo("movie", request.params.movie);
+ query.find({
+ success: function(results) {
+ var sum = 0;
+ for (var i = 0; i < results.length; ++i) {
+ sum += results[i].get("stars");
+ }
+ response.success(sum / results.length);
+ },
+ error: function() {
+ response.error("movie lookup failed");
+ }
+ });
+});
+~~~~~
+
+Then you can call either of these functions using the `parse_rest.datatypes.Function` class:
+
+~~~~~ {python}
+from parse_rest.datatypes import Function
+
+hello_func = Function("hello")
+hello_func()
+{u'result': u'Hello world!'}
+star_func = Function("averageStars")
+star_func(movie="The Matrix")
+{u'result': 4.5}
+~~~~~
+
+
+ACLs
+---------------
+The ACL for an object can be updated using the `parse_rest.datatypes.ACL` class. This class provides three methods for setting an ACL: set_user, set_role, and set_default. For example, using the User and gameScore examples from above:
+~~~~~ {python}
+from parse_rest.datatypes import ACL
+from parse_rest.user import User
+
+u = User.login('dhelmet', '12345')
+
+gameScore.ACL.set_user(u, read=True, write=True)
+# allows user 'dhelmet' to read and write to gameScore
+gameScore.ACL.set_default(read=True)
+# allows public to read but not write to gameScore
+gameScore.ACL.set_role('moderators', read=True, write=True)
+# allows role 'moderators' to read and write to gameScore. Can alternatively pass the role object instead of the
+# role name. See below for more info on Roles.
+gameScore.save()
+~~~~~
+
+
+Roles
+---------------
+You can create, update or delete roles as well, using the `parse_rest.role.Role` class. Creating a role requires you to pass a name and an ACL to Role.
+~~~~~ {python}
+from parse_rest.role import Role
+from parse_rest.datatypes import ACL
+
+admin_role = Role(name='moderators')
+admin_role.ACL.set_default(read=True)
+admin_role.save()
+~~~~~
+
+This, for example, creates a role with the name 'moderators', with an ACL that allows the public to read but not write to this role object.
+
+
+Session Tokens
+---------------
+When querying or updating an object protected by an ACL, parse.com requires the session token of the user with read and write privileges, respectively. You can pass the session token to such queries and updates by using the `parse_rest.connection.SessionToken` class.
+
+~~~~~ {python}
+from parse_rest.connection import SessionToken
+from parse_rest.user import User
+
+u = User.login('dhelmet', '12345')
+token = u.sessionToken
+
+with SessionToken(token):
+ collectedItem = CollectedItem.Query.get(type="Sword") # Get a collected item, Sword, that is protected by ACL
+ print collectedItem
+~~~~~
+
+Assuming the CollectedItem 'Sword' is read-protected from the public by an ACL and is readable only by the user, SessionToken allows the user to bypass the ACL and get the 'Sword' item.
+
+Elevating Access to Master
+--------------------------
+Sometimes it is useful to only allow privileged use of the master key for specific uses.
+
+~~~~~ {python}
+from parse_rest.connection import MasterKey
+
+with MasterKey('master key'):
+ # do privileged calls
+~~~~~
View
255 __init__.py
@@ -1,255 +0,0 @@
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-import urllib, urllib2
-import base64
-import json
-import datetime
-import collections
-
-API_ROOT = 'https://api.parse.com/1/classes'
-
-APPLICATION_ID = ''
-MASTER_KEY = ''
-
-
-class ParseBinaryDataWrapper(str):
- pass
-
-
-class ParseBase(object):
- def _executeCall(self, uri, http_verb, data=None):
- url = API_ROOT + uri
-
- request = urllib2.Request(url, data)
-
- request.add_header('Content-type', 'application/json')
-
- # we could use urllib2's authentication system, but it seems like overkill for this
- auth_header = "Basic %s" % base64.b64encode('%s:%s' % (APPLICATION_ID, MASTER_KEY))
- request.add_header("Authorization", auth_header)
-
- request.get_method = lambda: http_verb
-
- # TODO: add error handling for server response
- response = urllib2.urlopen(request)
- response_body = response.read()
- response_dict = json.loads(response_body)
-
- return response_dict
-
- def _ISO8601ToDatetime(self, date_string):
- # TODO: verify correct handling of timezone
- date_string = date_string[:-1] + 'UTC'
- date = datetime.datetime.strptime(date_string, "%Y-%m-%dT%H:%M:%S.%f%Z")
- return date
-
-
-class ParseObject(ParseBase):
- def __init__(self, class_name, attrs_dict=None):
- self._class_name = class_name
- self._object_id = None
- self._updated_at = None
- self._created_at = None
-
- if attrs_dict:
- self._populateFromDict(attrs_dict)
-
- def objectId(self):
- return self._object_id
-
- def updatedAt(self):
- return self._updated_at and self._ISO8601ToDatetime(self._updated_at) or None
-
- def createdAt(self):
- return self._created_at and self._ISO8601ToDatetime(self._created_at) or None
-
- def save(self):
- if self._object_id:
- self._update()
- else:
- self._create()
-
- def delete(self):
- # URL: /1/classes/<className>/<objectId>
- # HTTP Verb: DELETE
-
- uri = '/%s/%s' % (self._class_name, self._object_id)
-
- self._executeCall(uri, 'DELETE')
-
- self = self.__init__(None)
-
- def _populateFromDict(self, attrs_dict):
- self._object_id = attrs_dict['objectId']
- self._created_at = attrs_dict['createdAt']
- self._updated_at = attrs_dict['updatedAt']
-
- del attrs_dict['objectId']
- del attrs_dict['createdAt']
- del attrs_dict['updatedAt']
-
- attrs_dict = dict(map(self._convertFromParseType, attrs_dict.items()))
-
- self.__dict__.update(attrs_dict)
-
- def _convertToParseType(self, prop):
- key, value = prop
-
- if type(value) == ParseObject:
- value = {'__type': 'Pointer',
- 'className': value._class_name,
- 'objectId': value._object_id}
- elif type(value) == datetime.datetime:
- value = {'__type': 'Date',
- 'iso': value.isoformat()[:-3] + 'Z'} # take off the last 3 digits and add a Z
- elif type(value) == ParseBinaryDataWrapper:
- value = {'__type': 'Bytes',
- 'base64': base64.b64encode(value)}
-
- return (key, value)
-
- def _convertFromParseType(self, prop):
- key, value = prop
-
- if type(value) == dict and value.has_key('__type'):
- if value['__type'] == 'Pointer':
- value = ParseQuery(value['className']).get(value['objectId'])
- elif value['__type'] == 'Date':
- value = self._ISO8601ToDatetime(value['iso'])
- elif value['__type'] == 'Bytes':
- value = ParseBinaryDataWrapper(base64.b64decode(value['base64']))
- else:
- raise Exception('Invalid __type.')
-
- return (key, value)
-
- def _getJSONProperties(self):
-
- properties_list = self.__dict__.items()
-
- # filter properties that start with an underscore
- properties_list = filter(lambda prop: prop[0][0] != '_', properties_list)
-
- #properties_list = [(key, value) for key, value in self.__dict__.items() if key[0] != '_']
-
- properties_list = map(self._convertToParseType, properties_list)
-
- properties_dict = dict(properties_list)
- json_properties = json.dumps(properties_dict)
-
- return json_properties
-
- def _create(self):
- # URL: /1/classes/<className>
- # HTTP Verb: POST
-
- uri = '/%s' % self._class_name
-
- data = self._getJSONProperties()
-
- response_dict = self._executeCall(uri, 'POST', data)
-
- self._created_at = self._updated_at = response_dict['createdAt']
- self._object_id = response_dict['objectId']
-
- def _update(self):
- # URL: /1/classes/<className>/<objectId>
- # HTTP Verb: PUT
-
- uri = '/%s/%s' % (self._class_name, self._object_id)
-
- data = self._getJSONProperties()
-
- response_dict = self._executeCall(uri, 'PUT', data)
-
- self._updated_at = response_dict['updatedAt']
-
-
-class ParseQuery(ParseBase):
- def __init__(self, class_name):
- self._class_name = class_name
- self._where = collections.defaultdict(dict)
- self._options = {}
- self._object_id = ''
-
- def eq(self, name, value):
- self._where[name] = value
- return self
-
- # It's tempting to generate the comparison functions programatically,
- # but probably not worth the decrease in readability of the code.
- def lt(self, name, value):
- self._where[name]['$lt'] = value
- return self
-
- def lte(self, name, value):
- self._where[name]['$lte'] = value
- return self
-
- def gt(self, name, value):
- self._where[name]['$gt'] = value
- return self
-
- def gte(self, name, value):
- self._where[name]['$gte'] = value
- return self
-
- def ne(self, name, value):
- self._where[name]['$ne'] = value
- return self
-
- def order(self, order, decending=False):
- # add a minus sign before the order value if decending == True
- self._options['order'] = decending and ('-' + order) or order
- return self
-
- def limit(self, limit):
- self._options['limit'] = limit
- return self
-
- def skip(self, skip):
- self._options['skip'] = skip
- return self
-
- def get(self, object_id):
- self._object_id = object_id
- return self._fetch(single_result=True)
-
- def fetch(self):
- # hide the single_result param of the _fetch method from the library user
- # since it's only useful internally
- return self._fetch()
-
- def _fetch(self, single_result=False):
- # URL: /1/classes/<className>/<objectId>
- # HTTP Verb: GET
-
- if self._object_id:
- uri = '/%s/%s' % (self._class_name, self._object_id)
- else:
- options = dict(self._options) # make a local copy
- if self._where:
- # JSON encode WHERE values
- where = json.dumps(self._where)
- options.update({'where': where})
-
- uri = '/%s?%s' % (self._class_name, urllib.urlencode(options))
-
- response_dict = self._executeCall(uri, 'GET')
-
- if single_result:
- return ParseObject(self._class_name, response_dict)
- else:
- return [ParseObject(self._class_name, result) for result in response_dict['results']]
-
View
0 parse_rest/__init__.py
No changes.
View
24 parse_rest/cloudcode/cloud/main.js
@@ -0,0 +1,24 @@
+
+// Use Parse.Cloud.define to define as many cloud functions as you want.
+// For example:
+Parse.Cloud.define("hello", function(request, response) {
+ response.success("Hello world!");
+});
+
+
+Parse.Cloud.define("averageStars", function(request, response) {
+ var query = new Parse.Query("Review");
+ query.equalTo("movie", request.params.movie);
+ query.find({
+ success: function(results) {
+ var sum = 0;
+ for (var i = 0; i < results.length; ++i) {
+ sum += results[i].get("stars");
+ }
+ response.success(sum / results.length);
+ },
+ error: function() {
+ response.error("movie lookup failed");
+ }
+ });
+});
View
4 parse_rest/cloudcode/config/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore
View
11 parse_rest/config.py
@@ -0,0 +1,11 @@
+from parse_rest.connection import API_ROOT
+from parse_rest.datatypes import ParseResource
+
+
+class Config(ParseResource):
+ ENDPOINT_ROOT = '/'.join([API_ROOT, 'config'])
+
+ @classmethod
+ def get(cls):
+ return cls.GET('').get('params')
+
View
203 parse_rest/connection.py
@@ -0,0 +1,203 @@
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+from six.moves.urllib.request import Request, urlopen
+from six.moves.urllib.error import HTTPError
+from six.moves.urllib.parse import urlencode, urlparse
+
+import json
+
+from parse_rest import core
+
+import os
+
+API_ROOT = os.environ.get('PARSE_API_ROOT') or 'https://api.parse.com/1'
+
+ACCESS_KEYS = {}
+
+
+# Connection can sometimes hang forever on SSL handshake
+CONNECTION_TIMEOUT = 60
+
+
+def register(app_id, rest_key, **kw):
+ global ACCESS_KEYS
+ ACCESS_KEYS = {
+ 'app_id': app_id,
+ 'rest_key': rest_key
+ }
+ ACCESS_KEYS.update(**kw)
+
+
+class SessionToken:
+ def __init__(self, token):
+ global ACCESS_KEYS
+ self.token = token
+
+ def __enter__(self):
+ ACCESS_KEYS.update({'session_token': self.token})
+
+ def __exit__(self, type, value, traceback):
+ del ACCESS_KEYS['session_token']
+
+
+class MasterKey:
+ def __init__(self, master_key):
+ global ACCESS_KEYS
+ self.master_key = master_key
+
+ def __enter__(self):
+ return ACCESS_KEYS.update({'master_key': self.master_key})
+
+ def __exit__(self, type, value, traceback):
+ del ACCESS_KEYS['master_key']
+
+
+def master_key_required(func):
+ '''decorator describing methods that require the master key'''
+ def ret(obj, *args, **kw):
+ conn = ACCESS_KEYS
+ if not (conn and conn.get('master_key')):
+ message = '%s requires the master key' % func.__name__
+ raise core.ParseError(message)
+ func(obj, *args, **kw)
+ return ret
+
+# Using this as "default=" argument solve the problem with Datetime object not being JSON serializable
+def date_handler(obj):
+ return obj.isoformat() if hasattr(obj, 'isoformat') else obj
+
+
+class ParseBase(object):
+ ENDPOINT_ROOT = API_ROOT
+
+ @classmethod
+ def execute(cls, uri, http_verb, extra_headers=None, batch=False, _body=None, **kw):
+ """
+ if batch == False, execute a command with the given parameters and
+ return the response JSON.
+ If batch == True, return the dictionary that would be used in a batch
+ command.
+ """
+ if batch:
+ urlsplitter = urlparse(API_ROOT).netloc
+ ret = {"method": http_verb, "path": uri.split(urlsplitter, 1)[1]}
+ if kw:
+ ret["body"] = kw
+ return ret
+
+ if not ('app_id' in ACCESS_KEYS and 'rest_key' in ACCESS_KEYS):
+ raise core.ParseError('Missing connection credentials')
+
+ app_id = ACCESS_KEYS.get('app_id')
+ rest_key = ACCESS_KEYS.get('rest_key')
+ master_key = ACCESS_KEYS.get('master_key')
+
+ url = uri if uri.startswith(API_ROOT) else cls.ENDPOINT_ROOT + uri
+ if _body is None:
+ data = kw and json.dumps(kw, default=date_handler) or "{}"
+ else:
+ data = _body
+ if http_verb == 'GET' and data:
+ url += '?%s' % urlencode(kw)
+ data = None
+ else:
+ data = data.encode('utf-8')
+
+ headers = {
+ 'Content-type': 'application/json',
+ 'X-Parse-Application-Id': app_id,
+ 'X-Parse-REST-API-Key': rest_key
+ }
+ headers.update(extra_headers or {})
+
+ request = Request(url, data, headers)
+
+ if ACCESS_KEYS.get('session_token'):
+ request.add_header('X-Parse-Session-Token', ACCESS_KEYS.get('session_token'))
+ elif master_key:
+ request.add_header('X-Parse-Master-Key', master_key)
+
+ request.get_method = lambda: http_verb
+
+ try:
+ response = urlopen(request, timeout=CONNECTION_TIMEOUT)
+ except HTTPError as e:
+ exc = {
+ 400: core.ResourceRequestBadRequest,
+ 401: core.ResourceRequestLoginRequired,
+ 403: core.ResourceRequestForbidden,
+ 404: core.ResourceRequestNotFound
+ }.get(e.code, core.ParseError)
+ raise exc(e.read())
+
+ return json.loads(response.read().decode('utf-8'))
+
+ @classmethod
+ def GET(cls, uri, **kw):
+ return cls.execute(uri, 'GET', **kw)
+
+ @classmethod
+ def POST(cls, uri, **kw):
+ return cls.execute(uri, 'POST', **kw)
+
+ @classmethod
+ def PUT(cls, uri, **kw):
+ return cls.execute(uri, 'PUT', **kw)
+
+ @classmethod
+ def DELETE(cls, uri, **kw):
+ return cls.execute(uri, 'DELETE', **kw)
+
+ @classmethod
+ def drop(cls):
+ return cls.POST("%s/schemas/%s" % (API_ROOT, cls.__name__),
+ _method="DELETE", _ClientVersion="browser")
+
+
+class ParseBatcher(ParseBase):
+ """Batch together create, update or delete operations"""
+ ENDPOINT_ROOT = '/'.join((API_ROOT, 'batch'))
+
+ def batch(self, methods):
+ """
+ Given a list of create, update or delete methods to call, call all
+ of them in a single batch operation.
+ """
+ methods = list(methods) # methods can be iterator
+ if not methods:
+ #accepts also empty list (or generator) - it allows call batch directly with query result (eventually empty)
+ return
+ queries, callbacks = list(zip(*[m(batch=True) for m in methods]))
+ # perform all the operations in one batch
+ responses = self.execute("", "POST", requests=queries)
+ # perform the callbacks with the response data (updating the existing
+ # objets, etc)
+
+ batched_errors = []
+ for callback, response in zip(callbacks, responses):
+ if "success" in response:
+ callback(response["success"])
+ else:
+ batched_errors.append(response["error"])
+
+ if batched_errors:
+ raise core.ParseBatchError(batched_errors)
+
+ def batch_save(self, objects):
+ """save a list of objects in one operation"""
+ self.batch(o.save for o in objects)
+
+ def batch_delete(self, objects):
+ """delete a list of objects in one operation"""
+ self.batch(o.delete for o in objects)
View
40 parse_rest/core.py
@@ -0,0 +1,40 @@
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+class ParseError(Exception):
+ '''Base exceptions from requests made to Parse'''
+ pass
+
+class ParseBatchError(Exception):
+ ''' Error in batching operation... should take a list. '''
+ pass
+
+class ResourceRequestBadRequest(ParseError):
+ '''Request returns a 400'''
+ pass
+
+
+class ResourceRequestLoginRequired(ParseError):
+ '''Request returns a 401'''
+ pass
+
+
+class ResourceRequestForbidden(ParseError):
+ '''Request returns a 403'''
+ pass
+
+
+class ResourceRequestNotFound(ParseError):
+ '''Request returns a 404'''
+ pass
View
494 parse_rest/datatypes.py
@@ -0,0 +1,494 @@
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+from __future__ import unicode_literals
+
+import base64
+import datetime
+import mimetypes
+import six
+
+from parse_rest.connection import API_ROOT, ParseBase
+from parse_rest.query import QueryManager
+from parse_rest.core import ParseError
+
+
+def complex_type(name=None):
+ '''Decorator for registering complex types'''
+ def wrapped(cls):
+ ParseType.type_mapping[name or cls.__name__] = cls
+ return cls
+ return wrapped
+
+
+class ParseType(object):
+ type_mapping = {}
+
+ @staticmethod
+ def convert_from_parse(parse_key, parse_data):
+ if isinstance(parse_data, list):
+ return [ParseType.convert_from_parse(parse_key, item) for item in parse_data]
+
+ parse_type = None
+ if isinstance(parse_data, dict):
+ if '__type' in parse_data:
+ parse_type = parse_data.pop('__type')
+ elif parse_key == 'ACL':
+ parse_type = 'ACL'
+
+ # if its not a parse type -- simply return it. This means it wasn't a "special class"
+ if not parse_type:
+ return parse_data
+
+ native = ParseType.type_mapping.get(parse_type)
+ return native.from_native(**parse_data) if native else parse_data
+
+ @staticmethod
+ def convert_to_parse(python_object, as_pointer=False):
+ is_object = isinstance(python_object, ParseResource) #User is derived from ParseResouce not Object, check against ParseResource
+
+ if is_object and not as_pointer:
+ return dict([(k, ParseType.convert_to_parse(v, as_pointer=True))
+ for k, v in python_object._editable_attrs.items()
+ ])
+
+ python_type = ParseResource if is_object else type(python_object)
+
+ # classes that need to be cast to a different type before serialization
+ transformation_map = {
+ datetime.datetime: Date,
+ ParseResource: Pointer
+ }
+
+ if (hasattr(python_object, '__iter__') and
+ not isinstance(python_object, (six.string_types[0], ParseType))):
+ # It's an iterable? Repeat this whole process on each object
+ if isinstance(python_object, dict):
+ for key, value in python_object.iteritems():
+ python_object[key]=ParseType.convert_to_parse(value, as_pointer=as_pointer)
+ return python_object
+ else:
+ return [ParseType.convert_to_parse(o, as_pointer=as_pointer)
+ for o in python_object]
+
+ if python_type in transformation_map:
+ klass = transformation_map.get(python_type)
+ return klass(python_object)._to_native()
+
+ if isinstance(python_object, ParseType):
+ return python_object._to_native()
+
+ return python_object
+
+ @classmethod
+ def from_native(cls, **kw):
+ return cls(**kw)
+
+ def _to_native(self):
+ raise NotImplementedError("_to_native must be overridden")
+
+
+@complex_type('Pointer')
+class Pointer(ParseType):
+
+ @classmethod
+ def from_native(cls, **kw):
+ # create object with only objectId and unloaded flag. it is automatically loaded when any other field is accessed
+ klass = Object.factory(kw.get('className'))
+ return klass(objectId=kw.get('objectId'), _is_loaded=False)
+
+
+ def __init__(self, obj):
+ self._object = obj
+
+ def _to_native(self):
+ return {
+ '__type': 'Pointer',
+ 'className': self._object.className,
+ 'objectId': self._object.objectId
+ }
+
+
+@complex_type('Object')
+class EmbeddedObject(ParseType):
+ @classmethod
+ def from_native(cls, **kw):
+ klass = Object.factory(kw.pop('className'))
+ return klass(**kw)
+
+
+@complex_type()
+class Relation(ParseType):
+ @classmethod
+ def from_native(cls, **kw):
+ pass
+
+
+@complex_type()
+class Date(ParseType):
+ FORMAT = '%Y-%m-%dT%H:%M:%S.%f%Z'