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edit_views.py
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edit_views.py
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from django.utils import timezone
import json
import sys
from django.contrib.auth import mixins
from django.core.exceptions import ObjectDoesNotExist
from django.http import HttpResponse, Http404
from django.views.generic import TemplateView
from django.views.generic.edit import FormView
from django.views import View
from django.urls import reverse
from django.shortcuts import redirect, render
from django_q.tasks import async
from gemet.thesaurus import EDIT_URL_NAMES, FOREIGN_RELATION_TYPES
from gemet.thesaurus import PENDING, PUBLISHED, DELETED, DELETED_PENDING
from gemet.thesaurus import SOURCE_RELATION_TO_TARGET
from gemet.thesaurus import models
from gemet.thesaurus.exports import create_export_files
from gemet.thesaurus.forms import ConceptForm, PropertyForm, ForeignRelationForm
from gemet.thesaurus.forms import VersionForm
from gemet.thesaurus.templatetags.gemet_tags import get_concept_name
from gemet.thesaurus.utils import get_form_errors, refresh_search_text
from gemet.thesaurus.utils import concept_has_unique_relation, get_new_code
from gemet.thesaurus.views import GroupView, SuperGroupView, TermView, ThemeView
from gemet.thesaurus.views import HeaderMixin, VersionMixin
class LoginRequiredMixin(mixins.LoginRequiredMixin):
login_url = '/auth/login'
class GroupEditView(LoginRequiredMixin, GroupView):
context_object_name = 'concept'
template_name = "edit/group_edit.html"
model = models.EditableGroup
override_languages = False
edit_view = True
class SuperGroupEditView(LoginRequiredMixin, SuperGroupView):
context_object_name = 'concept'
template_name = "edit/supergroup_edit.html"
model = models.EditableSuperGroup
override_languages = False
edit_view = True
class TermEditView(LoginRequiredMixin, TermView):
template_name = "edit/concept_edit.html"
model = models.EditableTerm
override_languages = False
edit_view = True
def get_object(self):
term = super(TermEditView, self).get_object()
if hasattr(term, 'default_definition'):
if term.default_definition and hasattr(term, 'definition'):
delattr(term, 'definition')
return term
def get_context_data(self, **kwargs):
context = super(TermEditView, self).get_context_data(**kwargs)
foreign_relation_types = models.PropertyType.objects.filter(
name__in=FOREIGN_RELATION_TYPES)
context.update({
"foreign_relation_types": foreign_relation_types,
})
return context
class ThemeEditView(LoginRequiredMixin, ThemeView):
template_name = "edit/theme_edit.html"
model = models.EditableTheme
context_object_name = 'concept'
override_languages = False
edit_view = True
class JsonResponseMixin(object):
def _get_response(self, data, status, status_code):
response = HttpResponse(json.dumps(data),
content_type="application/json")
response.status = status
response.status_code = status_code
return response
class UnrelatedConcepts(LoginRequiredMixin, JsonResponseMixin, View):
def _set_reverse_urls(self, concepts, langcode, relation):
for concept in concepts:
concept['name'] = get_concept_name(concept['name'], concept['id'],
(PENDING, PUBLISHED))
url_kwargs = {
'source_id': self.concept.id,
'target_id': concept['id'],
'relation_type': relation,
}
add_url = reverse('add_relation', kwargs=url_kwargs)
delete_url = reverse('delete_relation', kwargs=url_kwargs)
concept_url = reverse('concept', kwargs={
'langcode': langcode,
'code': concept['concept__code'],
})
concept['add_url'] = add_url
concept['delete_url'] = delete_url
concept['concept_url'] = concept_url
return concepts
def _get_concepts(self, langcode, relation, target_namespace, query):
return (
models.Property.objects
.filter(
name='prefLabel',
language__code=langcode,
concept__namespace__heading=target_namespace,
status__in=(PENDING, PUBLISHED),
value__istartswith=query,
)
.exclude(
concept_id__in=self.concept.source_relations.filter(
property_type__name=relation,
status__in=(PENDING, PUBLISHED, DELETED_PENDING),
)
.values_list('target_id', flat=True)
)
.exclude(concept_id=self.concept.id)
.extra(select={'name': 'value', 'id': 'concept_id'},
order_by=['name'])
.values('name', 'id', 'concept__code')
)
def get(self, request, langcode, id, relation):
self.concept = models.Concept.objects.get(id=id)
target_ns = SOURCE_RELATION_TO_TARGET.get(
(self.concept.namespace.heading, relation), models.Term.NAMESPACE)
page = int(request.GET.get('page', '1'))
start, end = 30 * (page-1), 30 * page
query = request.GET.get('q') or ''
concepts = self._get_concepts(langcode, relation, target_ns, query)
items = self._set_reverse_urls(concepts[start:end], langcode, relation)
data = {
'items': list(items),
'total_count': concepts.count(),
}
return self._get_response(data, 'success', 200)
class EditPropertyView(LoginRequiredMixin, JsonResponseMixin, VersionMixin,
View):
def post(self, request, langcode, id, name):
try:
language = models.Language.objects.get(code=langcode)
concept = models.Concept.objects.get(id=id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
form = PropertyForm(request.POST)
if not form.is_valid():
data = {"message": get_form_errors(form.errors)}
return self._get_response(data, 'error', 400)
field = models.Property.objects.filter(language=langcode,
concept__id=id,
name=name)
published_field = field.filter(status=PUBLISHED).first()
pending_field = field.filter(status=PENDING).first()
if pending_field:
pending_field.value = form.cleaned_data['value']
pending_field.save()
field = pending_field
else:
is_resource = False
if published_field:
if published_field.value == form.cleaned_data['value']:
data = {"message": 'Value already used.'}
return self._get_response(data, 'error', 400)
published_field.status = DELETED_PENDING
published_field.save()
is_resource = published_field.is_resource
field = models.Property.objects.create(
status=PENDING,
is_resource=is_resource,
version_added=self.pending_version,
concept=concept,
language=language,
name=name,
**form.cleaned_data
)
refresh_search_text(field.name, id, langcode, self.pending_version)
data = {"value": field.value}
return self._get_response(data, 'success', 200)
class AddRelationView(LoginRequiredMixin, JsonResponseMixin, VersionMixin,
View):
def post(self, request, source_id, target_id, relation_type):
try:
source = models.Concept.objects.get(id=source_id)
target = models.Concept.objects.get(id=target_id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
if concept_has_unique_relation(source, relation_type):
data = {"message": 'This object already has a relation.'}
return self._get_response(data, 'error', 400)
relation = (
models.Relation.objects
.filter(source=source, target=target,
property_type__name=relation_type)
.exclude(status=DELETED)
)
# This case should't appear for a request made from the web interface
if relation.exists():
data = {"message": 'A relation between the objects exists.'}
return self._get_response(data, 'error', 400)
property_type = models.PropertyType.objects.get(name=relation_type)
relation = models.Relation(source=source, target=target,
status=PENDING,
version_added=self.pending_version,
property_type=property_type)
relation.save()
relation.create_reverse()
return self._get_response({}, 'success', 200)
class DeleteRelationView(LoginRequiredMixin, JsonResponseMixin, View):
def post(self, request, source_id, target_id, relation_type):
try:
source = models.Concept.objects.get(id=source_id)
target = models.Concept.objects.get(id=target_id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
relation = models.Relation.objects.filter(
source=source,
target=target,
property_type__name=relation_type,
status__in=(PUBLISHED, PENDING)
).first()
if not relation:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
if relation.status == PUBLISHED:
relation.status = DELETED_PENDING
relation.save()
relation.reverse.status = DELETED_PENDING
relation.reverse.save()
elif relation.status == PENDING:
relation.delete()
relation.reverse.delete()
restore_url = reverse('restore_relation', kwargs={
'source_id': source_id,
'target_id': target_id,
'relation_type': relation_type,
})
data = {'restore_url': restore_url}
return self._get_response(data, 'success', 200)
class RestoreRelationView(LoginRequiredMixin, JsonResponseMixin, View):
def post(self, request, source_id, target_id, relation_type):
try:
source = models.Concept.objects.get(id=source_id)
target = models.Concept.objects.get(id=target_id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
if concept_has_unique_relation(source, relation_type):
data = {"message": 'This object already has a relation.'}
return self._get_response(data, 'error', 400)
relation = models.Relation.objects.filter(
source=source,
target=target,
property_type__name=relation_type,
status=DELETED_PENDING,
).first()
if not relation:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
relation.status = PUBLISHED
relation.save()
relation.reverse.status = PUBLISHED
relation.reverse.save()
delete_url = reverse('delete_relation', kwargs={
'source_id': source_id,
'target_id': target_id,
'relation_type': relation_type,
})
data = {'delete_url': delete_url}
return self._get_response(data, 'success', 200)
class AddPropertyView(LoginRequiredMixin, JsonResponseMixin, VersionMixin,
View):
def post(self, request, langcode, id, name):
try:
language = models.Language.objects.get(code=langcode)
concept = models.Concept.objects.get(id=id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
form = PropertyForm(request.POST)
if not form.is_valid():
data = {"message": get_form_errors(form.errors)}
return self._get_response(data, 'error', 400)
prop = (
models.Property.objects.filter(
language=language,
concept=concept,
name=name,
value=form.cleaned_data['value'],
)
.exclude(status=DELETED)
)
if prop.exists():
data = {"message": 'A property with this value already exists.'}
return self._get_response(data, 'error', 400)
field = models.Property.objects.create(
status=PENDING,
version_added=self.pending_version,
language=language,
concept=concept,
name=name,
**form.cleaned_data
)
delete_url = reverse('delete_property', kwargs={'pk': field.pk})
refresh_search_text(field.name, id, langcode, self.pending_version)
data = {
"value": field.value,
"id": field.id,
"status": field.status,
"url": delete_url,
}
return self._get_response(data, 'success', 200)
class DeletePropertyView(LoginRequiredMixin, JsonResponseMixin, View):
def post(self, request, pk):
try:
field = models.Property.objects.get(pk=pk)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
# Soft delete for published records / hard delete for pending ones
if field.status == PUBLISHED:
field.status = DELETED_PENDING
field.save()
elif field.status == PENDING:
field.delete()
refresh_search_text(field.name, field.concept_id, field.language_id)
return self._get_response({}, 'success', 200)
class AddForeignRelationView(LoginRequiredMixin, JsonResponseMixin,
VersionMixin, View):
def post(self, request, id):
try:
concept = models.Concept.objects.get(id=id)
proptype_id = request.POST.get('rel_type')
prop_type = models.PropertyType.objects.get(id=proptype_id)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
form = ForeignRelationForm(request.POST)
if form.is_valid():
new_relation = models.ForeignRelation.objects.create(
version_added=self.pending_version, property_type=prop_type,
concept=concept, **form.cleaned_data)
delete_url = reverse('delete_other', kwargs={'pk': new_relation.id})
data = {
'id': new_relation.id,
'delete_url': delete_url,
}
return self._get_response(data, 'success', 200)
data = {"message": get_form_errors(form.errors)}
return self._get_response(data, 'error', 400)
class RestoreForeignRelationView(LoginRequiredMixin, JsonResponseMixin, View):
def post(self, request, pk):
try:
foreign_relation = models.ForeignRelation.objects.get(
pk=pk,
status=DELETED_PENDING,
)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
foreign_relation.status = PUBLISHED
foreign_relation.save()
delete_url = reverse('delete_other', kwargs={'pk': pk})
data = {'delete_url': delete_url}
return self._get_response(data, 'success', 200)
class DeleteForeignRelationView(LoginRequiredMixin, JsonResponseMixin, View):
def post(self, request, pk):
try:
foreign_relation = models.ForeignRelation.objects.get(pk=pk)
except ObjectDoesNotExist:
data = {"message": 'Object does not exist.'}
return self._get_response(data, 'error', 400)
if foreign_relation.status == PUBLISHED:
foreign_relation.status = DELETED_PENDING
foreign_relation.save()
elif foreign_relation.status == PENDING:
foreign_relation.delete()
restore_url = reverse('restore_other', kwargs={'pk': pk})
data = {'restore_url': restore_url}
return self._get_response(data, 'success', 200)
class AddConceptView(LoginRequiredMixin, HeaderMixin, VersionMixin, FormView):
template_name = 'edit/concept_add.html'
form_class = ConceptForm
def form_valid(self, form):
namespace = form.cleaned_data['namespace']
new_concept = models.Concept(version_added=self.pending_version,
namespace=namespace,
status=PENDING)
new_concept.code = get_new_code(namespace)
new_concept.save()
# create prefLabel property for the new concept
models.Property.objects.create(status=PENDING,
version_added=self.pending_version,
concept=new_concept,
language=self.language,
name='prefLabel',
value=form.cleaned_data['name'])
refresh_search_text('prefLabel', new_concept.id, self.language.code)
url_name = EDIT_URL_NAMES[namespace.heading]
url = reverse(url_name, kwargs={'langcode': self.langcode,
'code': new_concept.code})
return redirect(url)
class DeletePendingConceptView(LoginRequiredMixin, View):
def get(self, request, langcode, pk):
try:
concept = models.Concept.objects.get(pk=pk, status=PENDING)
except ObjectDoesNotExist:
raise Http404
concept.delete()
url = reverse('themes', kwargs={'langcode': langcode})
return redirect(url)
class ReleaseVersionView(LoginRequiredMixin, HeaderMixin, VersionMixin,
FormView):
template_name = 'edit/release_version.html'
form_class = VersionForm
def form_valid(self, form):
# Current version becomes an old version
self.current_version.is_current = False
self.current_version.save()
# Pending version becomes current
self.pending_version.is_current = True
self.pending_version.identifier = form.cleaned_data['version']
self.pending_version.change_note = form.cleaned_data['change_note']
self.pending_version.publication_date = timezone.now()
self.pending_version.save()
# New pending version is created
models.Version.objects.create(is_current=False)
# Old searchText properties are deleted
models.Property.objects.filter(
name='searchText', status=DELETED_PENDING).delete()
# Pending objects become published and deleted_pending become deleted
versionable_classes = models.VersionableModel.__subclasses__()
for versionable_class in versionable_classes:
self._change_status(versionable_class, PENDING, PUBLISHED)
self._change_status(versionable_class, DELETED_PENDING, DELETED)
# Create exports. Skip for testing
if 'test' not in sys.argv:
task = async(create_export_files)
models.AsyncTask.objects.create(
task=task,
user=self.request.user,
version=self.pending_version,
)
url = reverse('themes', kwargs={'langcode': self.langcode})
return redirect(url)
def _change_status(self, model_cls, old_status, new_status):
model_cls.objects.filter(status=old_status).update(status=new_status)
class ChangeLogView(LoginRequiredMixin, HeaderMixin, VersionMixin,
TemplateView):
template_name = 'edit/change_log.html'
def get_context_data(self, **kwargs):
context = super(ChangeLogView, self).get_context_data(**kwargs)
new_concepts = (
models.Property.objects
.filter(
language__code=self.langcode,
name='prefLabel',
status=PENDING,
concept__status=PENDING,
)
.values(
'concept__code',
'value',
'concept__namespace__heading',
)
.order_by('concept__namespace', 'value')
)
published_concepts = (
models.Concept.objects
.filter(status=PUBLISHED)
.values_list('id', flat=True)
)
published_concepts = (
set(published_concepts
.filter(properties__status__in=[PENDING, DELETED_PENDING]))
|
set(published_concepts
.filter(
source_relations__status__in=[PENDING, DELETED_PENDING]))
|
set(published_concepts
.filter(
foreign_relations__status__in=[PENDING, DELETED_PENDING]))
)
old_concepts = (
models.Property.objects
.filter(
language__code=self.langcode,
name='prefLabel',
status__in=[PUBLISHED, PENDING],
concept_id__in=published_concepts,
)
.values(
'concept__code',
'concept__id',
'value',
'concept__namespace__heading',
)
.order_by('concept__namespace', 'value')
)
context.update({
'new_concepts': new_concepts,
'old_concepts': old_concepts,
})
return context
class ConceptChangesView(LoginRequiredMixin, View):
def get(self, request, langcode, id):
concept = models.Concept.objects.get(id=id)
language = models.Language.objects.get(code=langcode)
concept_details = {}
properties = (
concept.properties
.filter(status__in=[PENDING, DELETED_PENDING],
language=language)
.order_by('name', 'status')
)
for concept_property in properties:
if concept_property.name in concept_details.keys():
concept_details[concept_property.name].append(concept_property)
else:
concept_details[concept_property.name] = [concept_property]
other_language_properties = (
concept.properties
.filter(status__in=[PENDING, DELETED_PENDING])
.exclude(language=language)
.values_list('language__name', flat=True)
)
if other_language_properties.count():
concept_details['other_languages'] = other_language_properties
relations = (
concept.source_relations
.filter(status__in=[PENDING, DELETED_PENDING])
.values('status', 'target__id', 'property_type__name')
)
for relation in relations:
target_name = models.Property.objects.filter(
concept__id=relation['target__id'],
name='prefLabel',
language=language,
status__in=[PENDING, PUBLISHED]).first()
if target_name:
target_name = target_name.value
else:
target_name = 'Name not available in the current language'
target_relation = {
'target': target_name,
'status': relation['status']
}
relation_type = relation['property_type__name']
if relation_type in concept_details.keys():
concept_details[relation_type].append(target_relation)
else:
concept_details[relation_type] = [target_relation]
foreign_relations = (
concept.foreign_relations
.filter(status__in=[PENDING, DELETED_PENDING])
.order_by('property_type')
)
concept_details['foreign_relations'] = foreign_relations
concept_details['namespace'] = concept.namespace.heading
return render(request, 'edit/bits/concept_changes.html',
concept_details)