Paging?

[bwalsh]

Q: how to apply the paging pattern?
I see this in the tinkerpop docs ...

http://tinkerpop.apache.org/docs/current/reference/#range-step

@prismofeverything

[prismofeverything]

Hey Brian,

There is a range step in Ophion as well, which works pretty much the same.

`.range(lower, upper)`

[bwalsh]

@prismofeverything
Thanks Ryan,

I've tried the following...

 [{"has":{"key":"gid","condition":{"within":[{"s":"project:TCGA-ACC"}]}}},{"out":{"labels":["hasMember"]}},{"lower":1,"upper":10}]

and

 [{"has":{"key":"gid","condition":{"within":[{"s":"project:TCGA-ACC"}]}}},{"out":{"labels":["hasMember"]}},{"lower":0,"upper":10}]

This results in:

roxy to http://bmeg.compbio.ohsu.edu/vertex/query request: [{"has":{"key":"gid","condition":{"within":[{"s":"project:TCGA-ACC"}]}}},{"out":{"labels":["hasMember"]}},{"lower":1,"upper":10}]
ERROR:tornado.application:Uncaught exception POST /vertex/query (::1)
HTTPServerRequest(protocol='http', host='localhost:8080', method='POST', uri='/vertex/query', version='HTTP/1.1', remote_ip='::1', headers={'Origin': 'http://localhost:8080', 'Content-Length': '129', 'Accept-Language': 'en-US,en;q=0.8', 'Accept-Encoding': 'gzip, deflate, br', 'Host': 'localhost:8080', 'Accept': 'application/json', 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36', 'Dnt': '1', 'Connection': 'keep-alive', 'Referer': 'http://localhost:8080/cohorts/', 'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 'Content-Type': 'application/json'})
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/tornado/web.py", line 1467, in _execute
    result = method(*self.path_args, **self.path_kwargs)
  File "proxy.py", line 46, in post
    response = urllib2.urlopen(request)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 435, in open
    response = meth(req, response)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 548, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 473, in error
    return self._call_chain(*args)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 556, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 500: Internal Server Error
ERROR:tornado.access:500 POST /vertex/query (::1) 15.12ms

"<title>500: Internal Server Error</title>500: Internal Server Error"

[prismofeverything]

Ah right, the lower/upper are arguments to the range directive, so you would have to nest it like this:

{"range": {"lower": 0, "upper": 10}}

Let me know if that works for you.