Files
mayan-edms/apps/sources/models.py
2011-07-08 15:30:52 -04:00

164 lines
6.5 KiB
Python

from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes import generic
from documents.models import DocumentType
from documents.conf.settings import AVAILABLE_TRANSFORMATIONS
from documents.managers import RecentDocumentManager
from metadata.models import MetadataType
from sources.managers import SourceTransformationManager
available_transformations = ([(name, data['label']) for name, data in AVAILABLE_TRANSFORMATIONS.items()])
SOURCE_UNCOMPRESS_CHOICE_Y = 'y'
SOURCE_UNCOMPRESS_CHOICE_N = 'n'
SOURCE_UNCOMPRESS_CHOICE_ASK = 'a'
SOURCE_UNCOMPRESS_CHOICES = (
(SOURCE_UNCOMPRESS_CHOICE_Y, _(u'Always')),
(SOURCE_UNCOMPRESS_CHOICE_N, _(u'Never')),
)
SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES = (
(SOURCE_UNCOMPRESS_CHOICE_Y, _(u'Always')),
(SOURCE_UNCOMPRESS_CHOICE_N, _(u'Never')),
(SOURCE_UNCOMPRESS_CHOICE_ASK, _(u'Ask user'))
)
SOURCE_ICON_DISK = 'disk'
SOURCE_ICON_DATABASE = 'database'
SOURCE_ICON_DRIVE = 'drive'
SOURCE_ICON_DRIVE_NETWORK = 'drive_network'
SOURCE_ICON_DRIVE_USER = 'drive_user'
SOURCE_ICON_EMAIL = 'email'
SOURCE_ICON_FOLDER = 'folder'
SOURCE_ICON_WORLD = 'world'
SOURCE_ICON_PRINTER = 'printer'
SOURCE_ICON_PRINTER_EMPTY = 'printer_empty'
SOURCE_ICON_CHOICES = (
(SOURCE_ICON_DISK, _(u'Disk')),
(SOURCE_ICON_DATABASE, _(u'Database')),
(SOURCE_ICON_DRIVE, _(u'Drive')),
(SOURCE_ICON_DRIVE_NETWORK, _(u'Network drive')),
(SOURCE_ICON_DRIVE_USER, _(u'User drive')),
(SOURCE_ICON_EMAIL, _(u'Envelope')),
(SOURCE_ICON_FOLDER, _(u'Folder')),
(SOURCE_ICON_WORLD, _(u'World')),
(SOURCE_ICON_PRINTER, _(u'Printer')),
(SOURCE_ICON_PRINTER_EMPTY, _(u'Empty printer')),
)
SOURCE_CHOICE_WEB_FORM = 'webform'
SOURCE_CHOICE_STAGING = 'staging'
SOURCE_CHOICES = (
(SOURCE_CHOICE_WEB_FORM, _(u'Web form')),
(SOURCE_CHOICE_STAGING, _(u'Server staging folder')),
)
class BaseModel(models.Model):
title = models.CharField(max_length=64, verbose_name=_(u'title'))
enabled = models.BooleanField(default=True, verbose_name=_(u'enabled'))
whitelist = models.TextField(blank=True, verbose_name=_(u'whitelist'))
blacklist = models.TextField(blank=True, verbose_name=_(u'blacklist'))
document_type = models.ForeignKey(DocumentType, blank=True, null=True, verbose_name=_(u'document type'), help_text=(u'Optional document type to be applied to documents uploaded from this source.'))
def __unicode__(self):
return u'%s' % self.title
class Meta:
ordering = ('title',)
abstract = True
class InteractiveBaseModel(BaseModel):
icon = models.CharField(blank=True, null=True, max_length=24, choices=SOURCE_ICON_CHOICES, verbose_name=_(u'icon'), help_text=_(u'An icon to visually distinguish this source.'))
def save(self, *args, **kwargs):
if not self.icon:
self.icon = self.default_icon
super(BaseModel, self).save(*args, **kwargs)
class Meta(BaseModel.Meta):
abstract = True
class StagingFolder(InteractiveBaseModel):
is_interactive = True
source_type = SOURCE_CHOICE_STAGING
default_icon = SOURCE_ICON_DRIVE
folder_path = models.CharField(max_length=255, verbose_name=_(u'folder path'), help_text=_(u'Server side filesystem path.'))
preview_width = models.IntegerField(blank=True, null=True, verbose_name=_(u'preview width'), help_text=_(u'Width value to be passed to the converter backend.'))
preview_height = models.IntegerField(blank=True, null=True, verbose_name=_(u'preview height'), help_text=_(u'Height value to be passed to the converter backend.'))
uncompress = models.CharField(max_length=1, choices=SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES, verbose_name=_(u'uncompress'), help_text=_(u'Whether to expand or not compressed archives.'))
delete_after_upload = models.BooleanField(default=True, verbose_name=_(u'delete after upload'), help_text=_(u'Delete the file after is has been successfully uploaded.'))
def get_preview_size(self):
dimensions = []
dimensions.append(unicode(self.preview_width))
if self.preview_height:
dimensions.append(unicode(self.preview_height))
return u'x'.join(dimensions)
class Meta(InteractiveBaseModel.Meta):
verbose_name = _(u'staging folder')
verbose_name_plural = _(u'staging folder')
'''
class SourceMetadata(models.Model):
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')
metadata_type = models.ForeignKey(MetadataType, verbose_name=_(u'metadata type'))
value = models.CharField(max_length=256, blank=True, verbose_name=_(u'value'))
def __unicode__(self):
return self.source
class Meta:
verbose_name = _(u'source metadata')
verbose_name_plural = _(u'sources metadata')
'''
class WebForm(InteractiveBaseModel):
is_interactive = True
source_type = SOURCE_CHOICE_WEB_FORM
default_icon = SOURCE_ICON_DISK
uncompress = models.CharField(max_length=1, choices=SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES, verbose_name=_(u'uncompress'), help_text=_(u'Whether to expand or not compressed archives.'))
#Default path
class Meta(InteractiveBaseModel.Meta):
verbose_name = _(u'web form')
verbose_name_plural = _(u'web forms')
class SourceTransformation(models.Model):
"""
Model that stores the transformation and transformation arguments
for a given document source
"""
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')
order = models.PositiveIntegerField(default=0, blank=True, null=True, verbose_name=_(u'order'), db_index=True)
transformation = models.CharField(choices=available_transformations, max_length=128, verbose_name=_(u'transformation'))
arguments = models.TextField(blank=True, null=True, verbose_name=_(u'arguments'), help_text=_(u'Use dictionaries to indentify arguments, example: {\'degrees\':90}'))
objects = SourceTransformationManager()
def __unicode__(self):
#return u'"%s" for %s' % (self.get_transformation_display(), unicode(self.content_object))
return self.get_transformation_display()
class Meta:
ordering = ('order',)
verbose_name = _(u'document source transformation')
verbose_name_plural = _(u'document source transformations')