Add support for document retention policies. Closes gh-issue #189.

docs/releases/2.0.rst

@@ -61,6 +61,8 @@ What's new in Mayan EDMS v2.0
 * Simplification of permissions/ACLS and role system
 * Removal of the ImageMagick and GraphicsMagick converter backends
 * Remove support for applying roles to new users automatically
+* Trash can feature
+* Retention policies, auto move to trash, auto delete from trash
 
 Upgrading from a previous version
 =================================

mayan/apps/common/literals.py

@@ -0,0 +1,9 @@
+from __future__ import unicode_literals
+
+from django.utils.translation import ugettext_lazy as _
+
+TIME_DELTA_UNIT_CHOICES = (
+    ('days', _('Days')),
+    ('hours', _('Hours')),
+    ('minutes', _('Minutes')),
+)

mayan/apps/documents/admin.py

@@ -3,7 +3,7 @@ from __future__ import unicode_literals
 from django.contrib import admin
 
 from .models import (
-    Document, DocumentPage, DocumentType, DocumentTypeFilename,
+    DeletedDocument, Document, DocumentPage, DocumentType, DocumentTypeFilename,
     DocumentVersion, RecentDocument
 )
 
@@ -15,13 +15,6 @@ class DocumentPageInline(admin.StackedInline):
     allow_add = True
 
 
-class DocumentVersionInline(admin.StackedInline):
-    model = DocumentVersion
-    extra = 1
-    classes = ('collapse-open',)
-    allow_add = True
-
-
 class DocumentTypeFilenameInline(admin.StackedInline):
     model = DocumentTypeFilename
     extra = 1
@@ -29,27 +22,46 @@ class DocumentTypeFilenameInline(admin.StackedInline):
     allow_add = True
 
 
-class DocumentTypeAdmin(admin.ModelAdmin):
-    inlines = [
-        DocumentTypeFilenameInline
-    ]
+class DocumentVersionInline(admin.StackedInline):
+    model = DocumentVersion
+    extra = 1
+    classes = ('collapse-open',)
+    allow_add = True
+
+
+class DeletedDocumentAdmin(admin.ModelAdmin):
+    date_hierarchy = 'deleted_date_time'
+    list_filter = ('document_type',)
+    list_display = ('uuid', 'label', 'document_type', 'deleted_date_time')
+    readonly_fields = ('uuid', 'document_type')
 
 
 class DocumentAdmin(admin.ModelAdmin):
+    date_hierarchy = 'date_added'
     inlines = [
         DocumentVersionInline
     ]
-    list_display = ('uuid', 'label',)
+    list_filter = ('document_type',)
+    list_display = ('uuid', 'label', 'document_type', 'date_added')
+    readonly_fields = ('uuid', 'document_type', 'date_added')
+
+
+class DocumentTypeAdmin(admin.ModelAdmin):
+    inlines = (
+        DocumentTypeFilenameInline,
+    )
+    list_display = ('name', 'trash_time_period', 'trash_time_unit', 'delete_time_period', 'delete_time_unit')
 
 
 class RecentDocumentAdmin(admin.ModelAdmin):
-    model = RecentDocument
-    list_display = ('user', 'document', 'datetime_accessed')
-    readonly_fields = ('user', 'document', 'datetime_accessed')
-    list_filter = ('user',)
     date_hierarchy = 'datetime_accessed'
+    list_display = ('user', 'document', 'datetime_accessed')
+    list_display_links = ('document', 'datetime_accessed')
+    list_filter = ('user',)
+    readonly_fields = ('user', 'document', 'datetime_accessed')
 
 
+admin.site.register(DeletedDocument, DeletedDocumentAdmin)
 admin.site.register(Document, DocumentAdmin)
 admin.site.register(DocumentType, DocumentTypeAdmin)
 admin.site.register(RecentDocument, RecentDocumentAdmin)

mayan/apps/documents/apps.py

@@ -1,5 +1,7 @@
 from __future__ import absolute_import, unicode_literals
 
+from datetime import timedelta
+
 from django.utils.translation import ugettext_lazy as _
 
 from actstream import registry
@@ -21,6 +23,7 @@ from converter.permissions import (
     permission_transformation_view,
 )
 from events.permissions import permission_events_view
+from mayan.celery import app
 from navigation import SourceColumn
 from rest_api.classes import APIEndPoint
 from statistics.classes import StatisticNamespace
@@ -51,6 +54,7 @@ from .links import (
     link_document_version_download, link_document_version_list,
     link_document_version_revert, link_trash_can_empty
 )
+from .literals import CHECK_DELETE_PERIOD_INTERVAL, CHECK_TRASH_PERIOD_INTERVAL
 from .models import (
     DeletedDocument, Document, DocumentPage, DocumentType, DocumentTypeFilename,
     DocumentVersion
@@ -99,6 +103,22 @@ class DocumentsApp(MayanAppConfig):
         SourceColumn(source=DeletedDocument, label=_('Type'), attribute='document_type')
         SourceColumn(source=DeletedDocument, label=_('Date time trashed'), attribute='deleted_date_time')
 
+        app.conf.CELERYBEAT_SCHEDULE.update({
+            'task_check_trash_periods': {
+                'task': 'documents.tasks.task_check_trash_periods',
+                'schedule': timedelta(seconds=CHECK_TRASH_PERIOD_INTERVAL),
+                'options': {'queue': 'documents'}
+            },
+        })
+
+        app.conf.CELERYBEAT_SCHEDULE.update({
+            'task_check_delete_periods': {
+                'task': 'documents.tasks.task_check_delete_periods',
+                'schedule': timedelta(seconds=CHECK_DELETE_PERIOD_INTERVAL),
+                'options': {'queue': 'documents'}
+            },
+        })
+
         menu_front_page.bind_links(links=[link_document_list_recent, link_document_list, link_document_list_deleted])
         menu_setup.bind_links(links=[link_document_type_setup])
         menu_tools.bind_links(links=[link_clear_image_cache])

mayan/apps/documents/forms.py

@@ -100,7 +100,7 @@ class DocumentTypeForm(forms.ModelForm):
     Model class form to create or edit a document type
     """
     class Meta:
-        fields = ('name',)
+        fields = ('name', 'trash_time_period', 'trash_time_unit', 'delete_time_period', 'delete_time_unit')
         model = DocumentType
 
 

mayan/apps/documents/literals.py

@@ -1,4 +1,8 @@
 from __future__ import unicode_literals
 
+CHECK_DELETE_PERIOD_INTERVAL = 60
+CHECK_TRASH_PERIOD_INTERVAL = 60
+DEFAULT_DELETE_PERIOD = 30
+DEFAULT_DELETE_TIME_UNIT = 'days'
 DEFAULT_ZIP_FILENAME = 'document_bundle.zip'
 DOCUMENT_IMAGE_TASK_TIMEOUT = 20

mayan/apps/documents/migrations/0011_auto_20150704_0508.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('documents', '0010_auto_20150704_0054'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='documenttype',
+            name='delete_time_period',
+            field=models.PositiveIntegerField(default=30, verbose_name='Delete time period'),
+            preserve_default=True,
+        ),
+        migrations.AddField(
+            model_name='documenttype',
+            name='delete_time_unit',
+            field=models.CharField(default='days', max_length=8, verbose_name='Delete time unit', choices=[('days', 'Days'), ('hours', 'Hours'), ('minutes', 'Minutes'), ('seconds', 'Seconds')]),
+            preserve_default=True,
+        ),
+        migrations.AddField(
+            model_name='documenttype',
+            name='trash_time_period',
+            field=models.PositiveIntegerField(null=True, verbose_name='Trash time period', blank=True),
+            preserve_default=True,
+        ),
+        migrations.AddField(
+            model_name='documenttype',
+            name='trash_time_unit',
+            field=models.CharField(blank=True, max_length=8, null=True, verbose_name='Trash time unit', choices=[('days', 'Days'), ('hours', 'Hours'), ('minutes', 'Minutes'), ('seconds', 'Seconds')]),
+            preserve_default=True,
+        ),
+        migrations.AlterField(
+            model_name='document',
+            name='deleted_date_time',
+            field=models.DateTimeField(verbose_name='Date and time trashed', blank=True),
+            preserve_default=True,
+        ),
+    ]

mayan/apps/documents/models.py

@@ -13,6 +13,7 @@ from django.utils.encoding import python_2_unicode_compatible
 from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy as _
 
+from common.literals import TIME_DELTA_UNIT_CHOICES
 from common.settings import setting_temporary_directory
 from common.utils import fs_cleanup
 from converter import (
@@ -28,6 +29,7 @@ from .events import (
     event_document_create, event_document_new_version,
     event_document_version_revert
 )
+from .literals import DEFAULT_DELETE_PERIOD, DEFAULT_DELETE_TIME_UNIT
 from .managers import (
     DocumentManager, DocumentTypeManager, PassthroughManager,
     RecentDocumentManager, TrashCanManager
@@ -53,7 +55,11 @@ class DocumentType(models.Model):
     Define document types or classes to which a specific set of
     properties can be attached
     """
-    name = models.CharField(max_length=32, verbose_name=_('Name'), unique=True)
+    name = models.CharField(max_length=32, unique=True, verbose_name=_('Name'))
+    trash_time_period = models.PositiveIntegerField(blank=True, help_text=_('Amount of time after which documents of this type will be moved to the trash.'), null=True, verbose_name=_('Trash time period'))
+    trash_time_unit = models.CharField(blank=True, choices=TIME_DELTA_UNIT_CHOICES, null=True, max_length=8, verbose_name=_('Trash time unit'))
+    delete_time_period = models.PositiveIntegerField(default=DEFAULT_DELETE_PERIOD, help_text=_('Amount of time after which documents of this type in the trash will be deleted.'), verbose_name=_('Delete time period'))
+    delete_time_unit = models.CharField(choices=TIME_DELTA_UNIT_CHOICES, default=DEFAULT_DELETE_TIME_UNIT, max_length=8, verbose_name=_('Delete time unit'))
 
     objects = DocumentTypeManager()
 

mayan/apps/documents/tasks.py

@@ -1,15 +1,19 @@
 from __future__ import unicode_literals
 
+from datetime import timedelta
 import logging
 
 from django.contrib.auth.models import User
 from django.core.files import File
+from django.utils.timezone import now
 
 from mayan.celery import app
 
 from common.models import SharedUploadedFile
 
-from .models import Document, DocumentPage, DocumentType, DocumentVersion
+from .models import (
+    DeletedDocument, Document, DocumentPage, DocumentType, DocumentVersion
+)
 
 logger = logging.getLogger(__name__)
 
@@ -77,3 +81,41 @@ def task_upload_new_version(document_id, shared_uploaded_file_id, user_id, comme
             logger.info('Warning during attempt to create new document version for document:%s ; %s', document, warning)
         finally:
             shared_file.delete()
+
+
+@app.task(ignore_result=True)
+def task_check_trash_periods():
+    logger.info('Executing')
+
+    for document_type in DocumentType.objects.all():
+        logger.info('Checking trash period of document type: %s', document_type)
+        if document_type.trash_time_period and document_type.trash_time_unit:
+            delta = timedelta(**{document_type.trash_time_unit: document_type.trash_time_period})
+            logger.info('Document type: %s, has a trash period delta of: %s', document_type, delta)
+            for document in Document.objects.filter(document_type=document_type):
+                if now() > document.date_added + delta:
+                    logger.info('Document "%s" with id: %d, added on: %s, exceded trash period', document, document.pk, document.date_added)
+                    document.delete()
+        else:
+            logger.info('Document type: %s, has a no retention delta', document_type)
+
+    logger.info('Finshed')
+
+
+@app.task(ignore_result=True)
+def task_check_delete_periods():
+    logger.info('Executing')
+
+    for document_type in DocumentType.objects.all():
+        logger.info('Checking deletion period of document type: %s', document_type)
+        if document_type.delete_time_period and document_type.delete_time_unit:
+            delta = timedelta(**{document_type.delete_time_unit: document_type.delete_time_period})
+            logger.info('Document type: %s, has a deletion period delta of: %s', document_type, delta)
+            for document in DeletedDocument.objects.filter(document_type=document_type):
+                if now() > document.deleted_date_time + delta:
+                    logger.info('Document "%s" with id: %d, trashed on: %s, exceded delete period', document, document.pk, document.deleted_date_time)
+                    document.delete()
+        else:
+            logger.info('Document type: %s, has a no retention delta', document_type)
+
+    logger.info('Finshed')