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Refactored the converter backend system

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This commit is contained in:
Roberto Rosario
2011-07-13 22:53:33 -04:00
parent 082c3e699c
commit 415f0c8daa
16 changed files with 317 additions and 238 deletions
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22
apps/documents/models.py
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@@ -12,16 +12,13 @@ from python_magic import magic
from taggit.managers import TaggableManager
from dynamic_search.api import register
from converter.api import get_page_count
from converter import TRANFORMATION_CHOICES
from converter.api import backend
from documents.conf.settings import CHECKSUM_FUNCTION
from documents.conf.settings import UUID_FUNCTION
from documents.conf.settings import STORAGE_BACKEND
from documents.conf.settings import AVAILABLE_TRANSFORMATIONS
from documents.managers import RecentDocumentManager
available_transformations = ([(name, data['label']) for name, data in AVAILABLE_TRANSFORMATIONS.items()])
def get_filename_from_uuid(instance, filename):
"""
@@ -263,20 +260,7 @@ class DocumentPage(models.Model):
return ('document_page_view', [self.pk])
def get_transformation_string(self):
transformation_list = []
warnings = []
for page_transformation in self.documentpagetransformation_set.all():
try:
if page_transformation.transformation in TRANFORMATION_CHOICES:
transformation_list.append(
TRANFORMATION_CHOICES[page_transformation.transformation] % eval(
page_transformation.arguments
)
)
except Exception, e:
warnings.append(e)
return u' '.join(transformation_list), warnings
return backend.get_transformation_string(self.documentpagetransformation_set.values('transformation', 'arguments'))
class DocumentPageTransformation(models.Model):
@@ -286,7 +270,7 @@ class DocumentPageTransformation(models.Model):
"""
document_page = models.ForeignKey(DocumentPage, verbose_name=_(u'document page'))
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'))
transformation = models.CharField(choices=backend.get_available_transformations_labels(), 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}'))
def __unicode__(self):