Files
mayan-edms/apps/ocr/views.py
2011-03-07 23:40:35 -04:00

204 lines
8.7 KiB
Python

import datetime
from django.http import HttpResponse, HttpResponseRedirect, Http404
from django.shortcuts import render_to_response, get_object_or_404, redirect
from django.template import RequestContext
from django.contrib import messages
from django.views.generic.list_detail import object_detail, object_list
from django.core.urlresolvers import reverse
from django.views.generic.create_update import create_object, delete_object, update_object
from django.conf import settings
from django.utils.translation import ugettext as _
from permissions.api import check_permissions, Unauthorized
from documents.models import Document
from ocr import PERMISSION_OCR_DOCUMENT, PERMISSION_OCR_DOCUMENT_DELETE, \
PERMISSION_OCR_QUEUE_ENABLE_DISABLE
from models import DocumentQueue, QueueDocument, add_document_to_queue
from literals import QUEUEDOCUMENT_STATE_PENDING, \
QUEUEDOCUMENT_STATE_PROCESSING, QUEUEDOCUMENT_STATE_ERROR, \
DOCUMENTQUEUE_STATE_STOPPED, DOCUMENTQUEUE_STATE_ACTIVE
from forms import DocumentQueueForm_view
def queue_document_list(request, queue_name='default'):
permissions = [PERMISSION_OCR_DOCUMENT]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
document_queue = get_object_or_404(DocumentQueue, name=queue_name)
return object_list(
request,
queryset=document_queue.queuedocument_set.all(),
template_name='generic_list.html',
extra_context={
'title':_(u'documents in queue: %s') % document_queue,
'hide_object':True,
'object':document_queue,
'object_name':_(u'document queue'),
'extra_columns':[
{'name':'document', 'attribute': lambda x: '<a href="%s">%s</a>' % (x.document.get_absolute_url(), x.document) if hasattr(x, 'document') else _(u'Missing document.')},
{'name':_(u'thumbnail'), 'attribute':
lambda x: '<a class="fancybox" href="%s"><img src="%s" /></a>' % (reverse('document_preview', args=[x.id]),
reverse('document_thumbnail', args=[x.id]))
},
{'name':'submitted', 'attribute': lambda x: unicode(x.datetime_submitted).split('.')[0], 'keep_together':True},
{'name':'state', 'attribute': lambda x: x.get_state_display()},
{'name':'result', 'attribute':'result'},
],
'sidebar_subtemplates_list':[
{
'title':_(u'document queue properties'),
'name':'generic_detail_subtemplate.html',
'form':DocumentQueueForm_view(instance=document_queue),
}],
},
)
def queue_document_delete(request, queue_document_id):
permissions = [PERMISSION_OCR_DOCUMENT_DELETE]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', None)))
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', None)))
return delete_object(request, model=QueueDocument, object_id=queue_document_id,
template_name='generic_confirm.html',
post_delete_redirect=reverse('queue_document_list'),
extra_context={
'delete_view':True,
'next':next,
'previous':previous,
'object_name':_(u'queued document'),
})
def submit_document(request, document_id, queue_name='default'):
permissions = [PERMISSION_OCR_DOCUMENT]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
document = get_object_or_404(Document, pk=document_id)
document_queue = get_object_or_404(DocumentQueue, name=queue_name)
add_document_to_queue(document, document_queue.name)
messages.success(request, _(u'Document: %(document)s was added to the OCR queue: %(queue)s.') % {
'document':document, 'queue':document_queue.label})
return HttpResponseRedirect(request.META['HTTP_REFERER'])
def re_queue_document(request, queue_document_id):
permissions = [PERMISSION_OCR_DOCUMENT]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', None)))
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', None)))
queue_document = get_object_or_404(QueueDocument, pk=queue_document_id)
try:
queue_document.document
except Document.DoesNotExist:
messages.error(request, _(u'This document no longer exists.'))
return HttpResponseRedirect(previous)
if queue_document.state == QUEUEDOCUMENT_STATE_PENDING:
messages.warning(request, _(u'This document is already queued and pending processing.'))
return HttpResponseRedirect(previous)
elif queue_document.state == QUEUEDOCUMENT_STATE_PROCESSING:
messages.warning(request, _(u'This document is already being processed and can\'t be re-queded.'))
return HttpResponseRedirect(previous)
if request.method == 'POST':
try:
if queue_document.state == QUEUEDOCUMENT_STATE_ERROR:
queue_document.datetime_submitted = datetime.datetime.now()
queue_document.state = QUEUEDOCUMENT_STATE_PENDING
queue_document.save()
messages.success(request, _(u'Document: %(document)s was re-queued to the OCR queue: %(queue)s') % {
'document':queue_document.document, 'queue':queue_document.document_queue.label})
except Exception, e:
messages.error(request, e)
return HttpResponseRedirect(next)
return render_to_response('generic_confirm.html', {
'object':queue_document,
'title':_(u'Are you sure you wish to re-queue document: %s') % queue_document,
'next':next,
'previous':previous,
}, context_instance=RequestContext(request))
def document_queue_disable(request, document_queue_id):
permissions = [PERMISSION_OCR_QUEUE_ENABLE_DISABLE]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', None)))
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', None)))
document_queue = get_object_or_404(DocumentQueue, pk=document_queue_id)
if document_queue.state == DOCUMENTQUEUE_STATE_STOPPED:
messages.warning(request, _(u'Document queue: %s, already stopped.') % document_queue)
return HttpResponseRedirect(previous)
if request.method == 'POST':
document_queue.state = DOCUMENTQUEUE_STATE_STOPPED
document_queue.save()
messages.success(request, _(u'Document queue: %s, stopped successfully.') % document_queue)
return HttpResponseRedirect(next)
return render_to_response('generic_confirm.html', {
'object':document_queue,
'title':_(u'Are you sure you wish to disable document queue: %s') % document_queue,
'next':next,
'previous':previous,
}, context_instance=RequestContext(request))
def document_queue_enable(request, document_queue_id):
permissions = [PERMISSION_OCR_QUEUE_ENABLE_DISABLE]
try:
check_permissions(request.user, 'ocr', permissions)
except Unauthorized, e:
raise Http404(e)
next = request.POST.get('next', request.GET.get('next', request.META.get('HTTP_REFERER', None)))
previous = request.POST.get('previous', request.GET.get('previous', request.META.get('HTTP_REFERER', None)))
document_queue = get_object_or_404(DocumentQueue, pk=document_queue_id)
if document_queue.state == DOCUMENTQUEUE_STATE_ACTIVE:
messages.warning(request, _(u'Document queue: %s, already active.') % document_queue)
return HttpResponseRedirect(previous)
if request.method == 'POST':
document_queue.state = DOCUMENTQUEUE_STATE_ACTIVE
document_queue.save()
messages.success(request, _(u'Document queue: %s, activated successfully.') % document_queue)
return HttpResponseRedirect(next)
return render_to_response('generic_confirm.html', {
'object':document_queue,
'title':_(u'Are you sure you wish to activate document queue: %s') % document_queue,
'next':next,
'previous':previous,
}, context_instance=RequestContext(request))