121 lines
3.6 KiB
Python
121 lines
3.6 KiB
Python
from __future__ import unicode_literals
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import logging
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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from django.utils.functional import cached_property
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from django.utils.module_loading import import_string
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from django.utils.translation import force_text
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from django.utils.translation import ugettext_lazy as _
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from mayan.apps.documents.models import DocumentType, DocumentVersion
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from .managers import DocumentTypeSettingsManager
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logger = logging.getLogger(__name__)
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@python_2_unicode_compatible
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class StoredDriver(models.Model):
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driver_path = models.CharField(
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max_length=255, verbose_name=_('Driver path')
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)
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internal_name = models.CharField(
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db_index=True, max_length=128, verbose_name=_('Internal name')
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)
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class Meta:
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ordering = ('internal_name',)
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verbose_name = _('Driver')
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verbose_name_plural = _('Drivers')
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def __str__(self):
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return force_text(self.driver_label)
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@cached_property
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def driver_class(self):
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return import_string(self.driver_path)
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@cached_property
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def driver_label(self):
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return self.driver_class.label
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class DocumentTypeSettings(models.Model):
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"""
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Model to store the file metadata settings for a document type.
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"""
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document_type = models.OneToOneField(
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on_delete=models.CASCADE, related_name='file_metadata_settings',
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to=DocumentType, unique=True, verbose_name=_('Document type')
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)
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auto_process = models.BooleanField(
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default=True, verbose_name=_(
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'Automatically queue newly created documents for processing.'
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)
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)
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objects = DocumentTypeSettingsManager()
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class Meta:
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verbose_name = _('Document type settings')
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verbose_name_plural = _('Document types settings')
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def natural_key(self):
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return self.document_type.natural_key()
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natural_key.dependencies = ['documents.DocumentType']
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@python_2_unicode_compatible
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class DocumentVersionDriverEntry(models.Model):
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driver = models.ForeignKey(
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on_delete=models.CASCADE, related_name='driver_entries',
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to=StoredDriver, verbose_name=_('Driver')
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)
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document_version = models.ForeignKey(
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on_delete=models.CASCADE, related_name='file_metadata_drivers',
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to=DocumentVersion, verbose_name=_('Document version')
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)
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class Meta:
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ordering = ('document_version', 'driver')
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unique_together = ('driver', 'document_version')
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verbose_name = _('Document version driver entry')
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verbose_name_plural = _('Document version driver entries')
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def __str__(self):
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return force_text(self.driver)
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def get_attribute_count(self):
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return self.entries.count()
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get_attribute_count.short_description = _('Attribute count')
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@python_2_unicode_compatible
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class FileMetadataEntry(models.Model):
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document_version_driver_entry = models.ForeignKey(
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on_delete=models.CASCADE, related_name='entries',
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to=DocumentVersionDriverEntry,
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verbose_name=_('Document version driver entry')
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)
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key = models.CharField(
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db_index=True, help_text=_('Name of the file metadata entry.'),
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max_length=255, verbose_name=_('Key')
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)
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value = models.CharField(
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db_index=True, help_text=_('Value of the file metadata entry.'),
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max_length=255, verbose_name=_('Value')
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)
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class Meta:
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ordering = ('key', 'value')
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verbose_name = _('File metadata entry')
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verbose_name_plural = _('File metadata entries')
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def __str__(self):
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return '{}: {}: {}'.format(
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self.document_version_driver_entry, self.key, self.value
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)
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