Created new metadata app and move all code relating metadata to it
This commit is contained in:
Roberto Rosario
251
apps/metadata/views.py
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251
apps/metadata/views.py
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from django.shortcuts import render_to_response
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from django.template import RequestContext
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from django.utils.translation import ugettext_lazy as _
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from django.shortcuts import get_object_or_404
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from django.contrib import messages
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from django.http import HttpResponseRedirect
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from django.core.urlresolvers import reverse
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from django.utils.http import urlencode
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from documents.models import Document, RecentDocument
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from permissions.api import check_permissions
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from filesystem_serving.api import document_create_fs_links, document_delete_fs_links
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from metadata import PERMISSION_METADATA_DOCUMENT_EDIT, \
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PERMISSION_METADATA_DOCUMENT_ADD, PERMISSION_METADATA_DOCUMENT_REMOVE
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from metadata.forms import MetadataFormSet, AddMetadataForm, MetadataRemoveFormSet
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from metadata.api import save_metadata_list
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from metadata.models import DocumentMetadata, MetadataType
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def metadata_edit(request, document_id=None, document_id_list=None):
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check_permissions(request.user, 'metadata', [PERMISSION_METADATA_DOCUMENT_EDIT])
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if document_id:
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documents = [get_object_or_404(Document, pk=document_id)]
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if documents[0].documentmetadata_set.count() == 0:
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messages.warning(request, _(u'The selected document doesn\'t have any metadata.'))
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return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
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elif document_id_list:
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documents = [get_object_or_404(Document, pk=document_id) for document_id in document_id_list.split(',')]
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else:
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messages.error(request, _(u'Must provide at least one document.'))
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return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
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metadata = {}
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for document in documents:
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RecentDocument.objects.add_document_for_user(request.user, document)
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for item in document.documentmetadata_set.all():
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value = item.value
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if item.metadata_type in metadata:
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if value not in metadata[item.metadata_type]:
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metadata[item.metadata_type].append(value)
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else:
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metadata[item.metadata_type] = [value] if value else u''
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initial = []
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for key, value in metadata.items():
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initial.append({
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'metadata_type': key,
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'value': u', '.join(value)
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})
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formset = MetadataFormSet(initial=initial)
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if request.method == 'POST':
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formset = MetadataFormSet(request.POST)
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if formset.is_valid():
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for document in documents:
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try:
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document_delete_fs_links(document)
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except Exception, e:
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messages.error(request, _(u'Error deleting filesystem links for document: %(document)s; %(error)s') % {
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'document': document, 'error': e})
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for form in formset.forms:
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if form.cleaned_data['update']:
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try:
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save_metadata_list([form.cleaned_data], document)
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messages.success(request, _(u'Metadata for document %s edited successfully.') % document)
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except Exception, e:
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messages.error(request, _(u'Error editing metadata for document %(document)s; %(error)s.') % {
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'document': document, 'error': e})
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try:
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warnings = document_create_fs_links(document)
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if request.user.is_staff or request.user.is_superuser:
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for warning in warnings:
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messages.warning(request, warning)
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messages.success(request, _(u'Filesystem links updated successfully for document: %s.') % document)
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except Exception, e:
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messages.error(request, _('Error creating filesystem links for document: %(document)s; %(error)s') % {
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'document': document, 'error': e})
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if len(documents) == 1:
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return HttpResponseRedirect(document.get_absolute_url())
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elif len(documents) > 1:
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return HttpResponseRedirect(reverse('document_list_recent'))
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context = {
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'form_display_mode_table': True,
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'form': formset,
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}
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if len(documents) == 1:
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context['object'] = documents[0]
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context['title'] = _(u'Edit metadata for document: %s') % ', '.join([unicode(d) for d in documents])
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elif len(documents) > 1:
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context['title'] = _(u'Edit metadata for documents: %s') % ', '.join([unicode(d) for d in documents])
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return render_to_response('generic_form.html', context,
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context_instance=RequestContext(request))
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def metadata_multiple_edit(request):
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return metadata_edit(request, document_id_list=request.GET.get('id_list', []))
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def metadata_add(request, document_id=None, document_id_list=None):
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check_permissions(request.user, 'metadata', [PERMISSION_METADATA_DOCUMENT_ADD])
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if document_id:
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documents = [get_object_or_404(Document, pk=document_id)]
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elif document_id_list:
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documents = [get_object_or_404(Document, pk=document_id) for document_id in document_id_list.split(',')]
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else:
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messages.error(request, _(u'Must provide at least one document.'))
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return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
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metadata = {}
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for document in documents:
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RecentDocument.objects.add_document_for_user(request.user, document)
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if request.method == 'POST':
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form = AddMetadataForm(request.POST)
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if form.is_valid():
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metadata_type = form.cleaned_data['metadata_type']
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for document in documents:
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document_metadata, created = DocumentMetadata.objects.get_or_create(document=document, metadata_type=metadata_type, defaults={'value': u''})
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if created:
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messages.success(request, _(u'Metadata type: %(metadata_type)s successfully added to document %(document)s.') % {
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'metadata_type': metadata_type, 'document': document})
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else:
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messages.warning(request, _(u'Metadata type: %(metadata_type)s already present in document %(document)s.') % {
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'metadata_type': metadata_type, 'document': document})
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if len(documents) == 1:
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return HttpResponseRedirect(reverse(metadata_edit, args=[document.pk]))
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elif len(documents) > 1:
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return HttpResponseRedirect(u'%s?%s' % (reverse('metadata_multiple_edit'), urlencode({'id_list': document_id_list})))
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else:
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form = AddMetadataForm()
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context = {
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#'form_display_mode_table': True,
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'form': form,
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}
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if len(documents) == 1:
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context['object'] = documents[0]
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context['title'] = _(u'Add metadata type to document: %s') % ', '.join([unicode(d) for d in documents])
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elif len(documents) > 1:
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context['title'] = _(u'Add metadata type to documents: %s') % ', '.join([unicode(d) for d in documents])
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return render_to_response('generic_form.html', context,
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context_instance=RequestContext(request))
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def metadata_multiple_add(request):
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return metadata_add(request, document_id_list=request.GET.get('id_list', []))
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def metadata_remove(request, document_id):
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check_permissions(request.user, 'metadata', [PERMISSION_METADATA_DOCUMENT_REMOVE])
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if document_id:
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documents = [get_object_or_404(Document, pk=document_id)]
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if documents[0].documentmetadata_set.count() == 0:
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messages.warning(request, _(u'The selected document doesn\'t have any metadata.'))
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return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
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elif document_id_list:
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documents = [get_object_or_404(Document, pk=document_id) for document_id in document_id_list.split(',')]
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else:
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messages.error(request, _(u'Must provide at least one document.'))
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return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
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metadata = {}
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for document in documents:
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RecentDocument.objects.add_document_for_user(request.user, document)
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for item in document.documentmetadata_set.all():
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value = item.value
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if item.metadata_type in metadata:
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if value not in metadata[item.metadata_type]:
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metadata[item.metadata_type].append(value)
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else:
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metadata[item.metadata_type] = [value] if value else u''
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initial = []
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for key, value in metadata.items():
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initial.append({
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'metadata_type': key,
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'value': u', '.join(value)
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})
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formset = MetadataRemoveFormSet(initial=initial)
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if request.method == 'POST':
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formset = MetadataRemoveFormSet(request.POST)
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if formset.is_valid():
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for document in documents:
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try:
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document_delete_fs_links(document)
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except Exception, e:
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messages.error(request, _(u'Error deleting filesystem links for document: %(document)s; %(error)s') % {
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'document': document, 'error': e})
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for form in formset.forms:
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if form.cleaned_data['update']:
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metadata_type = get_object_or_404(MetadataType, pk=form.cleaned_data['id'])
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try:
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document_metadata = DocumentMetadata.objects.get(document=document, metadata_type=metadata_type)
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document_metadata.delete()
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messages.success(request, _(u'Successfully remove metadata type: %(metadata_type)s from document: %(document)s.') % {
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'metadata_type': metadata_type, 'document': document})
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except:
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messages.error(request, _(u'Error removing metadata type: %(metadata_type)s from document: %(document)s.') % {
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'metadata_type': metadata_type, 'document': document})
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try:
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warnings = document_create_fs_links(document)
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if request.user.is_staff or request.user.is_superuser:
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for warning in warnings:
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messages.warning(request, warning)
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messages.success(request, _(u'Filesystem links updated successfully for document: %s.') % document)
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except Exception, e:
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messages.error(request, _('Error creating filesystem links for document: %(document)s; %(error)s') % {
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'document': document, 'error': e})
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if len(documents) == 1:
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return HttpResponseRedirect(document.get_absolute_url())
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elif len(documents) > 1:
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return HttpResponseRedirect(reverse('document_list_recent'))
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context = {
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'form_display_mode_table': True,
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'form': formset,
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}
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if len(documents) == 1:
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context['object'] = documents[0]
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context['title'] = _(u'Remove metadata types to document: %s') % ', '.join([unicode(d) for d in documents])
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elif len(documents) > 1:
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context['title'] = _(u'Remove metadata types to documents: %s') % ', '.join([unicode(d) for d in documents])
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return render_to_response('generic_form.html', context,
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context_instance=RequestContext(request))
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def metadata_multiple_remove(request):
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return metadata_remove(request, document_id_list=request.GET.get('id_list', []))
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