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Integrates cassandra/cqlengine with ripozo to easily create cassandra backed Hypermedia/HATEOAS/REST apis

Project Description


ripozo-cassandra is a ripozo-extension that provides a Manager that integrates cqlengine (and thereby Cassandra) with ripozo. It provides convience functions for generating resources. In particular it focues on creating shortcuts for CRUD+L type operations. It fully implements the BaseManager class that is provided in the ripozo package.


This is the minimal example of creating ripozo managers with ripozo-cassandra and integrating them with a resource. As you can see in the example, there are only three functional lines of code.

from cqlengine.models import Model
from cqlengine import columns, connection
from import create_keyspace, sync_table, delete_keyspace

from ripozo_cassandra import CQLManager

from uuid import uuid4

# Define your model
class Person(Model):
    id = columns.UUID(primary_key=True, default=lambda:uuid4())
    first_name = columns.Text()
    last_name = columns.Text()

# Setup cqlengine and sync the person table
keyspace_name = 'mykeyspace'
connection.setup([''], keyspace_name)

# This is where you define your manager
class PersonManageR(CQLManager):
    model = Person  # Assign the cqlengin model to the manager
    fields = ('id', 'first_name', 'last_name',) # Specify the fields to use for this manager

# This is the ripozo specific part.
# This creates a resource class that can be given
# to a dispatcher (e.g. the flask-ripozo package's FlaskDispatcher)
class PersonResource(ResourceBase):
    manager = PersonManager
    pks = ['id']

    # A retrieval method that will operate on the '/api/person' route
    # It retrieves the id, first_name, and last_name properties
    def get_person(cls, request):
        properties = self.manager.retrieve(request.url_params)
        return cls(properties=properties)
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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ripozo-cassandra-0.2.1.tar.gz (4.8 kB) Copy SHA256 Checksum SHA256 Source Jun 30, 2015

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