47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
from __future__ import absolute_import
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from ast import literal_eval
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from datetime import datetime
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from django.db import models
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from .conf.settings import RECENT_COUNT
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class RecentDocumentManager(models.Manager):
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def add_document_for_user(self, user, document):
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if user.is_authenticated():
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self.model.objects.filter(user=user, document=document).delete()
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new_recent = self.model(user=user, document=document, datetime_accessed=datetime.now())
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new_recent.save()
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to_delete = self.model.objects.filter(user=user)[RECENT_COUNT:]
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for recent_to_delete in to_delete:
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recent_to_delete.delete()
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def get_for_user(self, user):
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if user.is_authenticated():
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return [recent_document.document for recent_document in self.model.objects.filter(user=user)]
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else:
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return []
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class DocumentPageTransformationManager(models.Manager):
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def get_for_document_page(self, document_page):
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return self.model.objects.filter(document_page=document_page)
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def get_for_document_page_as_list(self, document_page):
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warnings = []
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transformations = []
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for transformation in self.get_for_document_page(document_page).values('transformation', 'arguments'):
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try:
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transformations.append(
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{
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'transformation': transformation['transformation'],
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'arguments': literal_eval(transformation['arguments'].strip())
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}
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)
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except (ValueError, SyntaxError), e:
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warnings.append(e)
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return transformations, warnings
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