forked from 0x2620/pandora
123 lines
3.9 KiB
Python
123 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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from ox.utils import json
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from oxdjango.shortcuts import render_to_json_response, json_response
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from oxdjango.api import actions
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from item.models import Item
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from item import utils
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from changelog.models import add_changelog
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from . import models
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def parse_query(data, user):
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query = {}
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query['range'] = [0, 100]
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query['sort'] = [{'key':'in', 'operator':'+'}]
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for key in ('keys', 'group', 'range', 'sort', 'query'):
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if key in data:
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query[key] = data[key]
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query['qs'] = models.Sequence.objects.find(query, user)
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if 'itemsQuery' in data and data['itemsQuery'].get('conditions'):
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item_query = Item.objects.find({'query': data['itemsQuery']}, user)
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query['qs'] = query['qs'].filter(item__in=item_query)
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return query
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def order_query(qs, sort):
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order_by = []
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sort += [
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{'key': 'in', 'operator': '-'},
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]
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for e in sort:
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operator = e['operator']
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if operator != '-':
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operator = ''
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key = {
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'in': 'start',
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'out': 'end',
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'position': 'start',
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}.get(e['key'], e['key'])
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if key not in ('duration', 'start', 'end', 'mode', 'hash'):
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key = 'sort__%s' % key
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order = '%s%s' % (operator, key)
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order_by.append(order)
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if order_by:
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qs = qs.order_by(*order_by, nulls_last=True)
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return qs
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def findSequences(request, data):
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'''
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Finds sequences for a given query
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takes {
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query: object // query object, see `find`
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itemsQuery: object // limit to matching items, query object, see `find`
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}
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returns {
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items: [object] // list of sequences
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}
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notes: One of the query conditions has to be {key: 'mode', operator: '==',
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value: 'color' or 'shape'}.
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see: find, getSequence
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'''
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response = json_response()
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query = parse_query(data, request.user)
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qs = query['qs']
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if 'keys' in data:
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qs = order_query(qs, query['sort'])
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qs = qs[query['range'][0]:query['range'][1]]
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response['data']['items'] = [p.json(data['keys'], request.user) for p in qs]
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elif 'position' in query:
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qs = order_query(qs, query['sort'])
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ids = [i['public_id'] for i in qs.values('public_id')]
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data['conditions'] = data['conditions'] + {
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'value': data['position'],
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'key': query['sort'][0]['key'],
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'operator': '^'
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}
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query = parse_query(data, request.user)
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qs = order_query(query['qs'], query['sort'])
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if qs.count() > 0:
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response['data']['position'] = utils.get_positions(ids, [qs[0].public_id])[0]
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elif 'positions' in data:
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qs = order_query(qs, query['sort'])
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ids = list(qs.values_list('public_id', flat=True))
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response['data']['positions'] = utils.get_positions(ids, data['positions'])
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else:
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response['data']['items'] = qs.count()
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return render_to_json_response(response)
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actions.register(findSequences)
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def getSequence(request, data):
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'''
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Gets a sequence by id
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takes {
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id: string, // sequence id
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mode: string, // sequence mode ('color' or 'shape')
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position: int // position in seconds
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}
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returns {
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id: string, // sequence id
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mode: string, // sequence mode ('color' or 'shape')
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in: int, // in point in seconds
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out: int // out point in seconds
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}
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see: findSequences
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'''
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response = json_response()
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position = float('%0.03f' % data['position'])
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i = Item.objects.get(public_id=data['id'])
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qs = models.Sequence.objects.filter(
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sort_id=i.sort.pk,
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mode=models.Sequence.MODE[data['mode']],
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start__lte=position,
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end__gt=position
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).order_by('start', 'end')
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for sequence in qs:
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response['data'] = sequence.json()
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break
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return render_to_json_response(response)
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actions.register(getSequence)
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