wafer-thin-mint 1.0.11

Wafer Thin Mint, is a package that allows full integration, with ease, to the TastyPie distro.

It provides a simple and elegant way, to connect straight to the DB API’s with minimal effort, following the same pattern as the Django DB ORM.

Please see below for instructions on setup, and have a happy usage :) SETTINGS

following the example below - please add to your settings file

WAFER_THIN_MINT = { # the connector model can either be the default wafer-thin-mint Server to Server auth model, or a bespoke ‘connector_model’: ‘wafer_thin_mint.Connector’, # the client information takes the host, suffix (if you dont want json), and table routing urls ‘client’: { ‘host’: ‘http://127.0.0.1’, ‘suffix’: ‘?format=json’, ‘tables’: { ‘client’: ‘/api/v1/client/’, ‘territory’: ‘/api/v1/territory/’, } } } USAGE Model

In your db api models file (example remote_db.py) add the structures as below, you’ll recognise the format from the Django DB ORM - this is intentional to act as a simple and easy to use way to map at a similar db however over a remote API system.

Firstly, import wafer-thin-mint

from wafer_thin_mint import core

Now we can build our models first off you’ll see the ‘Model’ parent, this maps to a class that houses the metaclass that does all the work, this keeps everything nicely abstracted from view.

class Client(core.Model): # now this is quite crucial - wafer-thin-mint needs to know what settings we are using, there is another # method that can be used, but will detail later, this however is the best method of choice settings = ‘my_app.settings’

# now we build our structure, alike the Django DB ORM we list our desired mapping fields and ‘type’ them # i will list the choices at the end id = core.PrimaryKey client_reference = core.Charfield description = core.Charfield

Now we have our model, and its all setup for use! So how do we use it? Well you probably already know how.. you just dont realise it yet.

Again we’ve maintained the structure of the Django DB ORM and created it like so. module.py

from my_app import remote_db

c = Client.objects.get(id=1) we now have our ‘client’ retrieved via the API to the TastyPie interface!

print c.id 1

print c.description some client description neat eh? now i mentioned earlier about a different method of choosing our settings file.. well we can use the ‘using()’ param for this, again, alike that of the DB ORM, just a different usecase

c = Client.objects.using(‘my_app.settings’).get(id=2)

print c.id 2

Do ensure you set your mapping up correctly however, making sure the points you try to connect to are actually queryable, and also, make sure your TastyPie has the ‘exact’ pointer in use, as this is essential in the fetching method.

Now finally, what ‘types’ are available for our fields? Well because we dont want to boil down too many specifics when the remote API will handle most of it, we’ve generalised the following, this will just prevent the small int/str errors etc

PrimaryKey - do ensure this is used on your pk, especially if you plan on using it with foriegn table references CharField - says it like it is, types a str IntegerField - again, a bit obvious DecimalField - references the Decimal module TextField - again, alike the str ForiegnKey - this is used for identifying your table object, which is possible alike the DB ORM, simply reference your fetched object and all will be mapped accordingly