168 lines
6.3 KiB
Python
168 lines
6.3 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division
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from django.conf import settings
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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 annotation.models import Annotation
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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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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.Clip.objects.find(query, user)
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query['filter'] = models.Clip.objects.filter_annotations(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': 'position', 'operator': '+'},
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{'key': 'text', '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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clip_keys = ('public_id', 'start', 'end', 'hue', 'saturation', 'lightness', 'volume',
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'duration', 'sortvalue', 'videoRatio',
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'random__random')
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key = {
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'id': 'public_id',
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'in': 'start',
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'out': 'end',
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'position': 'start',
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'text': 'sortvalue',
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'videoRatio': 'aspect_ratio',
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'random': 'random__random',
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}.get(e['key'], e['key'])
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if key.startswith('clip:'):
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key = e['key'][len('clip:'):]
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key = {
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'text': 'sortvalue',
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'position': 'start',
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}.get(key, key)
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elif key not in clip_keys:
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#key mgith need to be changed, see order_sort in item/views.py
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key = "sort__%s" % key
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if key == 'public_id':
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order_by.append('%s%s' % (operator, 'sort__public_id'))
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order_by.append('%s%s' % (operator, 'start'))
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order_by.append('end')
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else:
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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 findClips(request, data):
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'''
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Finds clips for a given query
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takes {
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query: object, // find clips, query object, see `find`
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itemsQuery: object, // limit to matching items, query object, see `find`
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keys: [string], // list of properties to return
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positions: [int], // list of positions
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range: [int, int], // range of results to return
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sort: [object] // list of sort objects, see `find`
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}
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returns {
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items: [object] // list of clip objects
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}
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see: find
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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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ids = []
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layer_ids = [k['id'] for k in settings.CONFIG['layers']]
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keys = filter(lambda k: k not in layer_ids + ['annotations'], data['keys'])
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if filter(lambda k: k not in models.Clip.clip_keys, keys):
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qs = qs.select_related('sort')
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def add(p):
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ids.append(p.id)
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return p.json(keys=keys)
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response['data']['items'] = [add(p) for p in qs]
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keys = data['keys']
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def clip_public_id(c):
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return u'%s/%0.03f-%0.03f' % (c['public_id'].split('/')[0], c['clip__start'], c['clip__end'])
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def add_annotations(key, qs, add_layer=False):
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values = ['public_id', 'value', 'clip__start', 'clip__end']
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subtitles = utils.get_by_key(settings.CONFIG['layers'], 'isSubtitles', True)
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if subtitles or add_layer:
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values.append('layer')
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if query['filter']:
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qs = qs.filter(query['filter'])
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for i in response['data']['items']:
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if not key in i:
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i[key] = []
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for a in qs.values(*values):
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public_id = clip_public_id(a)
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for i in response['data']['items']:
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if i['id'] == public_id:
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l = {
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'id': a['public_id'],
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'value': a['value'],
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}
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if subtitles and a['layer'] == subtitles['id'] and not a['value']:
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del l['id']
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if add_layer:
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l['layer'] = a['layer']
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i[key].append(l)
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if response['data']['items']:
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if 'annotations' in keys:
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aqs = Annotation.objects.filter(layer__in=settings.CONFIG['clipLayers'],
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clip__in=ids)
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add_annotations('annotations', aqs , True)
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layer_ids = [k['id'] for k in settings.CONFIG['layers']]
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for layer in filter(lambda l: l in keys, layer_ids):
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aqs = Annotation.objects.filter(layer=layer, clip__in=ids)
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add_annotations(layer, aqs)
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elif 'position' in query:
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qs = order_query(qs, query['sort'])
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ids = [u'%s/%0.03f-%0.03f' % (c['item__public_id'], c['start'], c['end'])
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for c in qs.values('item__public_id', 'start', 'end')]
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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 = [u'%s/%0.03f-%0.03f' % (c['item__public_id'], c['start'], c['end'])
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for c in qs.values('item__public_id', 'start', 'end')]
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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(findClips)
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