reg and custom views by docid

reg_example.py

import reg
from examples.request import Request


class Document(object):
    def __init__(self, docid, text):
        self.docid = docid
        self.text = text


@reg.dispatch(
    reg.match_instance('obj'),
    reg.match_key(
        'request_method',
        lambda obj, request: request.request_method,
        fallback=lambda obj, request: 'GET',
        default='GET'
    ),
    reg.match_key(
        'docid',
        lambda obj, request: obj.docid,
        fallback=lambda obj, request: obj.docid
    )
)
def view(obj, request):
    raise NotImplementedError


@view.register(obj=Document)
def document_all(obj, request):
    return "GET document text is: " + obj.text


@view.register(obj=Document, request_method='POST')
def document_post(obj, request):
    return "POST document text is: " + obj.text


@view.register(obj=Document, docid='doc2')
def document_custom_get(obj, request):
    return "CUSTOM document text is: " + obj.text


if __name__ == '__main__':
    doc1 = Document('doc1', 'This is doc1')
    print(view(doc1, Request('GET')))
    print(view(doc1, Request('POST')))

    # Custom view for a specific document
    doc2 = Document('doc2', 'This is doc2')
    print(view(doc2, Request('GET')))