98 lines
3.8 KiB
Python
98 lines
3.8 KiB
Python
import os
|
|
import uuid
|
|
import mimetypes
|
|
from datetime import datetime
|
|
|
|
from django.db import models
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from documents.conf.settings import AVAILABLE_FUNCTIONS
|
|
|
|
|
|
def get_filename_from_uuid(instance, filename, directory='documents'):
|
|
populate_file_extension_and_mimetype(instance, filename)
|
|
stem, extension = os.path.splitext(filename)
|
|
return '%s/%s%s' % (directory, instance.uuid, extension)
|
|
|
|
def populate_file_extension_and_mimetype(instance, filename):
|
|
# First populate the file extension and mimetype
|
|
instance.file_mimetype, encoding = mimetypes.guess_type(filename) or ""
|
|
instance.file_filename, instance.file_extension = os.path.splitext(filename)
|
|
|
|
class DocumentType(models.Model):
|
|
name = models.CharField(max_length=32, verbose_name=_(u'name'))
|
|
|
|
def __unicode__(self):
|
|
return self.name
|
|
|
|
|
|
class Document(models.Model):
|
|
""" Minimum fields for a document entry.
|
|
Inherit this model to customise document metadata, see BasicDocument for an example.
|
|
"""
|
|
document_type = models.ForeignKey(DocumentType, verbose_name=_(u'document type'))
|
|
file = models.FileField(upload_to=get_filename_from_uuid)#lambda i,f: 'documents/%s' % i.uuid)
|
|
uuid = models.CharField(max_length=36, default=lambda:unicode(uuid.uuid4()), blank=True, editable=False)
|
|
file_mimetype = models.CharField(max_length=50, default="", editable=False)
|
|
file_filename = models.CharField(max_length=64, default="", editable=False)
|
|
file_extension = models.CharField(max_length=10, default="", editable=False)
|
|
date_added = models.DateTimeField("added", auto_now_add=True)
|
|
date_updated = models.DateTimeField("updated", auto_now=True)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document')
|
|
verbose_name_plural = _(u'documents')
|
|
ordering = ['-date_updated', '-date_added']
|
|
|
|
def __unicode__(self):
|
|
return self.uuid
|
|
|
|
|
|
available_functions_string = (_(u' Available functions: %s') % ','.join(['%s()' % name for name, function in AVAILABLE_FUNCTIONS.items()])) if AVAILABLE_FUNCTIONS else ''
|
|
|
|
class MetadataType(models.Model):
|
|
name = models.CharField(max_length=32, verbose_name=_(u'name'))
|
|
default = models.CharField(max_length=64, blank=True, null=True,
|
|
verbose_name=_(u'default'), help_text=_(u'Enter a string to be evaluated.%s') % available_functions_string)
|
|
lookup = models.CharField(max_length=64, blank=True, null=True, verbose_name=_(u'lookup'))
|
|
#datatype = models.
|
|
|
|
def __unicode__(self):
|
|
return self.name
|
|
|
|
class Meta:
|
|
verbose_name = _(u'metadata type')
|
|
verbose_name_plural = _(u'metadata types')
|
|
|
|
# @models.permalink
|
|
# def get_absolute_url(self):
|
|
# return ('state_list', [])
|
|
|
|
|
|
class DocumentTypeMetadataType(models.Model):
|
|
document_type = models.ForeignKey(DocumentType, verbose_name=_(u'document type'))
|
|
metadata_type = models.ForeignKey(MetadataType, verbose_name=_(u'metadata type'))
|
|
#override default
|
|
#create index dir? -bool
|
|
#required? -bool
|
|
|
|
def __unicode__(self):
|
|
return '%s <-> %s' %(self.document_type, self.metadata_type)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document type metadata type connector')
|
|
verbose_name_plural = _(u'document type metadata type connectors')
|
|
|
|
|
|
class DocumentMetadata(models.Model):
|
|
document = models.ForeignKey(Document, verbose_name=_(u'document'))
|
|
metadata_type = models.ForeignKey(MetadataType, verbose_name=_(u'metadata type'))
|
|
value = models.TextField(blank=True, null=True, verbose_name=_(u'metadata value'))
|
|
|
|
def __unicode__(self):
|
|
return '%s <-> %s' %(self.document, self.metadata_type)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document metadata')
|
|
verbose_name_plural = _(u'document metadata')
|