101 lines
3.7 KiB
Python
101 lines
3.7 KiB
Python
from __future__ import absolute_import
|
|
|
|
from django.db import models
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from documents.models import Document, DocumentType
|
|
|
|
from .conf.settings import (AVAILABLE_MODELS, AVAILABLE_FUNCTIONS)
|
|
|
|
available_models_string = (_(u' Available models: %s') % u','.join([name for name, model in AVAILABLE_MODELS.items()])) if AVAILABLE_MODELS else u''
|
|
available_functions_string = (_(u' Available functions: %s') % u','.join([u'%s()' % name for name, function in AVAILABLE_FUNCTIONS.items()])) if AVAILABLE_FUNCTIONS else u''
|
|
|
|
|
|
class MetadataType(models.Model):
|
|
'''
|
|
Define a type of metadata
|
|
'''
|
|
name = models.CharField(unique=True, max_length=48, verbose_name=_(u'name'), help_text=_(u'Do not use python reserved words, or spaces.'))
|
|
title = models.CharField(max_length=48, verbose_name=_(u'title'), blank=True, null=True)
|
|
default = models.CharField(max_length=128, 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=128, blank=True, null=True,
|
|
verbose_name=_(u'lookup'),
|
|
help_text=_(u'Enter a string to be evaluated. Example: [user.get_full_name() for user in User.objects.all()].%s') % available_models_string)
|
|
#TODO: datatype?
|
|
|
|
def __unicode__(self):
|
|
return self.title if self.title else self.name
|
|
|
|
class Meta:
|
|
ordering = ('title',)
|
|
verbose_name = _(u'metadata type')
|
|
verbose_name_plural = _(u'metadata types')
|
|
|
|
|
|
class MetadataSet(models.Model):
|
|
'''
|
|
Define a group of metadata types
|
|
'''
|
|
title = models.CharField(max_length=48, verbose_name=_(u'title'))
|
|
|
|
def __unicode__(self):
|
|
return self.title
|
|
|
|
class Meta:
|
|
ordering = ('title',)
|
|
verbose_name = _(u'metadata set')
|
|
verbose_name_plural = _(u'metadata set')
|
|
|
|
|
|
class MetadataSetItem(models.Model):
|
|
'''
|
|
Define the set of metadata that relates to a set or group of
|
|
metadata fields
|
|
'''
|
|
metadata_set = models.ForeignKey(MetadataSet, verbose_name=_(u'metadata set'))
|
|
metadata_type = models.ForeignKey(MetadataType, verbose_name=_(u'metadata type'))
|
|
#required = models.BooleanField(default=True, verbose_name=_(u'required'))
|
|
|
|
def __unicode__(self):
|
|
return unicode(self.metadata_type)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'metadata set item')
|
|
verbose_name_plural = _(u'metadata set items')
|
|
|
|
|
|
class DocumentMetadata(models.Model):
|
|
'''
|
|
Link a document to a specific instance of a metadata type with it's
|
|
current value
|
|
'''
|
|
document = models.ForeignKey(Document, verbose_name=_(u'document'))
|
|
metadata_type = models.ForeignKey(MetadataType, verbose_name=_(u'type'))
|
|
value = models.CharField(max_length=256, blank=True, verbose_name=_(u'value'), db_index=True)
|
|
|
|
def __unicode__(self):
|
|
return unicode(self.metadata_type)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document metadata')
|
|
verbose_name_plural = _(u'document metadata')
|
|
|
|
|
|
class DocumentTypeDefaults(models.Model):
|
|
'''
|
|
Default preselected metadata types and metadata set per document
|
|
type
|
|
'''
|
|
document_type = models.ForeignKey(DocumentType, verbose_name=_(u'document type'))
|
|
default_metadata_sets = models.ManyToManyField(MetadataSet, blank=True, verbose_name=_(u'default metadata sets'))
|
|
default_metadata = models.ManyToManyField(MetadataType, blank=True, verbose_name=_(u'default metadata'))
|
|
|
|
def __unicode__(self):
|
|
return unicode(self.document_type)
|
|
|
|
class Meta:
|
|
verbose_name = _(u'document type defaults')
|
|
verbose_name_plural = _(u'document types defaults')
|