forked from 0x2620/pandora
284 lines
9.9 KiB
Python
284 lines
9.9 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, with_statement
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import os
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import re
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from glob import glob
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from urllib import quote, unquote
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import unicodedata
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from django.db import models, transaction
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from django.db.models import Max
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from django.contrib.auth.models import User
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from django.db.models.signals import pre_delete, post_init
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from django.conf import settings
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import ox
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from oxdjango import fields
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from person.models import get_name_sort
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from item.utils import get_by_id
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from document.models import Document
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import managers
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class Entity(models.Model):
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class Meta:
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unique_together = ("type", "name")
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user = models.ForeignKey(User, related_name='entities', null=True, default=None)
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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type = models.CharField(max_length=255)
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name = models.CharField(max_length=255)
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alternativeNames = fields.TupleField(default=())
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data = fields.DictField(default={}, editable=False)
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matches = models.IntegerField(default=0)
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objects = managers.EntityManager()
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name_sort = models.CharField(max_length=255, null=True)
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name_find = models.TextField(default='', editable=True)
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documents = models.ManyToManyField(Document, through='DocumentProperties', related_name='entities')
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def save(self, *args, **kwargs):
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entity = get_by_id(settings.CONFIG['entities'], self.type)
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if entity.get('sortType') == 'person' and self.name:
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if isinstance(self.name, str):
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self.name = self.name.decode('utf-8')
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self.name_sort = get_name_sort(self.name)[:255].lower()
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else:
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self.name_sort = ox.sort_string(self.name or u'')[:255].lower() or None
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self.name_find = '||' + '||'.join((self.name,) + self.alternativeNames) + '||'
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self.name_find = self.name_find.lower()
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super(Entity, self).save(*args, **kwargs)
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self.update_matches()
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self.update_annotations()
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self.update_find()
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def __unicode__(self):
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return self.get_id()
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@classmethod
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def get(cls, id):
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return cls.objects.get(pk=ox.fromAZ(id))
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@classmethod
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def get_by_name(cls, name, type):
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return cls.objects.get(name_find__contains=u'|%s|' % name.lower(), type=type)
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@classmethod
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def get_or_create(model, name):
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qs = model.objects.filter(name_find__contains=u'|%s|' % name.lower())
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if qs.count() == 0:
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instance = model(name=name)
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instance.save()
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else:
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instance = qs[0]
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return instance
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def get_absolute_url(self):
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return ('/entities/%s' % quote(self.get_id())).replace('%3A', ':')
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def get_id(self):
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return ox.toAZ(self.id)
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def add(self, document):
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p, created = DocumentProperties.objects.get_or_create(document=document, entity=self)
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if created:
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p.index = DocumentProperties.objects.filter(entity=self).aggregate(Max('index'))['index__max'] + 1
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p.save()
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p.document.update_matches()
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def remove(self, document):
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DocumentProperties.objects.filter(document=document, entity=self).delete()
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def editable(self, user, item=None):
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if not user or user.is_anonymous():
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return False
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if user.is_staff or \
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user.profile.capability('canEditEntities') == True or \
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(item and item.editable(user)):
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return True
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return False
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def edit(self, data):
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for key in data:
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if key == 'name':
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data['name'] = re.sub(' \[\d+\]$', '', data['name']).strip()
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if not data['name']:
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data['name'] = "Unnamed"
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name = data['name']
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n = 1
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while Entity.objects.filter(name_find__contains=u'|%s|' % name.lower()).exclude(id=self.id).count() > 0:
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n += 1
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name = data['name'] + ' [%d]' % n
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self.name = name
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elif key == 'type':
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self.type = data[key]
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elif key == 'alternativeNames':
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used_names = [self.name.lower()]
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names = []
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for v in data[key]:
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name = ox.decode_html(v)
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name = re.sub(' \[\d+\]$', '', name).strip()
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name_ = name
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n = 1
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while name in used_names or \
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Entity.objects.filter(name_find__contains=u'|%s|' % name.lower()).exclude(id=self.id).count() > 0:
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n += 1
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name = name_ + ' [%d]' % n
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names.append(name)
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used_names.append(name.lower())
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self.alternativeNames = tuple(ox.escape_html(n) for n in names)
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else:
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#FIXME: more data validation
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if isinstance(data[key], basestring):
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self.data[key] = ox.sanitize_html(data[key])
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else:
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self.data[key] = data[key]
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def json(self, keys=None, user=None):
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if not keys:
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keys=[
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'alternativeNames',
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'editable',
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'id',
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'name',
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'sortName',
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'type',
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'user',
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'documents',
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] + self.data.keys()
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response = {}
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for key in keys:
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if key == 'id':
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response[key] = self.get_id()
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elif key == 'editable':
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response[key] = self.editable(user)
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elif key == 'user':
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response[key] = self.user and self.user.username
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elif key in ('name', 'alternativeNames', 'type'):
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response[key] = getattr(self, key)
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elif key == 'sortName':
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response[key] = self.name_sort
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elif key == 'documents':
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response[key] = [ox.toAZ(id_)
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for id_, in self.documentproperties.order_by('index').values_list('document_id')]
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elif key in self.data:
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response[key] = self.data[key]
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return response
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def annotation_value(self):
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#return u'<a href="/entities/%s">%s</a>' % (self.get_id(), ox.escape_html(self.name))
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return ox.escape_html(self.name)
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def update_find(self):
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def save(key, value):
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if value not in ('', None):
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f, created = Find.objects.get_or_create(entity=self, key=key)
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if isinstance(value, bool):
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value = value and 'true' or 'false'
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if isinstance(value, basestring):
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value = ox.decode_html(ox.strip_tags(value.strip()))
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value = unicodedata.normalize('NFKD', value).lower()
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f.value = value
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f.save()
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else:
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Find.objects.filter(entity=self, key=key).delete()
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entity = get_by_id(settings.CONFIG['entities'], self.type)
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if not entity:
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return
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with transaction.atomic():
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ids = ['name']
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for key in entity['keys']:
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value = self.data.get(key['id'])
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if isinstance(value, list):
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value = u'\n'.join(value)
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save(key['id'], value)
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ids.append(key['id'])
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save('name', u'\n'.join([self.name] + list(self.alternativeNames)))
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self.find.exclude(key__in=ids).delete()
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def update_matches(self):
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import annotation.models
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import item.models
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import text.models
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urls = [self.get_absolute_url()]
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url = unquote(urls[0])
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if url != urls[0]:
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urls.append(url)
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entity_layers = [l['id'] for l in settings.CONFIG['layers'] if l['type'] == 'entity']
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if entity_layers:
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matches = annotation.models.Annotation.objects.filter(layer__in=entity_layers, value=self.get_id()).count()
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else:
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matches = 0
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for url in urls:
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matches += annotation.models.Annotation.objects.filter(value__contains=url).count()
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matches += item.models.Item.objects.filter(data__contains=url).count()
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matches += text.models.Text.objects.filter(text__contains=url).count()
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if matches != self.matches:
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Entity.objects.filter(id=self.id).update(matches=matches)
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self.matches = matches
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def update_annotations(self):
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import annotation.models
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import annotation.tasks
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if self.name == self._original_name:
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return
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entity_layers = [l['id'] for l in settings.CONFIG['layers'] if l['type'] == 'entity']
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if entity_layers:
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annotation.tasks.update_annotations.delay(entity_layers, self.get_id())
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def entity_post_init(sender, instance, **kwargs):
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instance._original_name = instance.name
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post_init.connect(
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entity_post_init,
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sender=Entity,
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)
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class DocumentProperties(models.Model):
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class Meta:
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unique_together = ("entity", "document")
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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document = models.ForeignKey(Document, related_name='documentproperties')
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entity = models.ForeignKey(Entity, related_name='documentproperties')
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index = models.IntegerField(default=0)
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data = fields.DictField(default={})
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def __unicode__(self):
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return u"%r-%r" % (self.document, self.entity)
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def save(self, *args, **kwargs):
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super(DocumentProperties, self).save(*args, **kwargs)
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class Find(models.Model):
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class Meta:
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unique_together = ("entity", "key")
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entity = models.ForeignKey('Entity', related_name='find', db_index=True)
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key = models.CharField(max_length=200, db_index=True)
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value = models.TextField(blank=True, db_index=settings.DB_GIN_TRGM)
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def __unicode__(self):
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return u"%s=%s" % (self.key, self.value)
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