openmedialibrary/oml/item/api.py

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2014-05-04 17:26:43 +00:00
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from datetime import datetime
from flask import json
from oxflask.api import actions
from oxflask.shortcuts import returns_json
from oml import utils
import query
import models
import settings
from changelog import Changelog
import re
import state
import utils
@returns_json
def find(request):
'''
find items
'''
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
q = query.parse(data)
if 'group' in q:
response['items'] = []
'''
items = 'items'
item_qs = q['qs']
order_by = query.order_by_group(q)
qs = models.Facet.objects.filter(key=q['group']).filter(item__id__in=item_qs)
qs = qs.values('value').annotate(items=Count('id')).order_by(*order_by)
if 'positions' in q:
response['positions'] = {}
ids = [j['value'] for j in qs]
response['positions'] = utils.get_positions(ids, q['positions'])
elif 'range' in data:
qs = qs[q['range'][0]:q['range'][1]]
response['items'] = [{'name': i['value'], 'items': i[items]} for i in qs]
else:
response['items'] = qs.count()
'''
_g = {}
key = utils.get_by_id(settings.config['itemKeys'], q['group'])
for item in q['qs']:
i = item.json()
if q['group'] in i:
values = i[q['group']]
if isinstance(values, basestring):
values = [values]
for value in values:
if key.get('filterMap') and value:
value = re.compile(key.get('filterMap')).findall(value)
if value:
value = value[0]
else:
continue
if value not in _g:
_g[value] = 0
_g[value] += 1
g = [{'name': k, 'items': _g[k]} for k in _g]
if 'sort' in data: # parse adds default sort to q!
g.sort(key=lambda k: k[q['sort'][0]['key']])
if q['sort'][0]['operator'] == '-':
g.reverse()
if 'positions' in data:
response['positions'] = {}
ids = [k['name'] for k in g]
response['positions'] = utils.get_positions(ids, data['positions'])
elif 'range' in data:
response['items'] = g[q['range'][0]:q['range'][1]]
else:
response['items'] = len(g)
elif 'position' in data:
ids = [i.id for i in q['qs']]
response['position'] = utils.get_positions(ids, [data['qs'][0].id])[0]
elif 'positions' in data:
ids = [i.id for i in q['qs']]
response['positions'] = utils.get_positions(ids, data['positions'])
elif 'keys' in data:
'''
qs = qs[q['range'][0]:q['range'][1]]
response['items'] = [p.json(data['keys']) for p in qs]
'''
response['items'] = []
for i in q['qs'][q['range'][0]:q['range'][1]]:
j = i.json()
response['items'].append({k:j[k] for k in j if not data['keys'] or k in data['keys']})
else:
items = [i.json() for i in q['qs']]
response['items'] = len(items)
response['size'] = sum([i.get('size',0) for i in items])
return response
actions.register(find)
@returns_json
def get(request):
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
item = models.Item.get(data['id'])
if item:
response = item.json(data['keys'] if 'keys' in data else None)
return response
actions.register(get)
@returns_json
def edit(request):
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
print 'edit', data
item = models.Item.get(data['id'])
keys = filter(lambda k: k in models.Item.id_keys, data.keys())
print item, keys
if item and keys and item.json()['mediastate'] == 'available':
key = keys[0]
print 'update mainid', key, data[key]
item.update_mainid(key, data[key])
response = item.json()
else:
print 'can only edit available items'
response = item.json()
return response
actions.register(edit, cache=False)
@returns_json
def identify(request):
'''
takes {
title: string,
author: [string],
publisher: string,
date: string
}
returns {
title: string,
autor: [string],
date: string,
}
'''
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
response = {
'items': [
{
u'title': u'Cinema',
u'author': [u'Gilles Deleuze'],
u'date': u'1986-10',
u'publisher': u'University of Minnesota Press',
u'isbn10': u'0816613990',
},
{
u'title': u'How to Change the World: Reflections on Marx and Marxism',
u'author': [u'Eric Hobsbawm'],
u'date': u'2011-09-06',
u'publisher': u'Yale University Press',
u'isbn13': u'9780300176162',
}
]
}
return response
actions.register(identify)
@returns_json
def download(request):
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
item = models.Item.get(data['id'])
if item:
item.transferprogress = 0
item.transferadded = datetime.now()
p = models.User.get(settings.USER_ID)
if p not in item.users:
item.users.append(p)
item.update()
response = {'status': 'queued'}
return response
actions.register(download, cache=False)
@returns_json
def cancelDownload(request):
response = {}
data = json.loads(request.form['data']) if 'data' in request.form else {}
item = models.Item.get(data['id'])
if item:
item.transferprogress = None
item.transferadded = None
p = models.User.get(settings.USER_ID)
if p in item.users:
item.users.remove(p)
item.update()
response = {'status': 'cancelled'}
return response
actions.register(cancelDownload, cache=False)
@returns_json
def scan(request):
state.main.add_callback(state.websockets[0].put, json.dumps(['scan', {}]))
return {}
actions.register(scan, cache=False)
@returns_json
def _import(request):
state.main.add_callback(state.websockets[0].put, json.dumps(['import', {}]))
return {}
actions.register(_import, 'import', cache=False)