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Apply default transformations to staging previews

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This commit is contained in:
Roberto Rosario
2011-02-15 15:48:31 -04:00
parent c8d5e26b4c
commit c87b9932c6
1 changed files with 16 additions and 1 deletions
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17
apps/documents/views.py
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@@ -519,9 +519,24 @@ def document_download(request, document_id):
#TODO: Need permission
def staging_file_preview(request, staging_file_id):
transformation_list = []
for page_transformation in DEFAULT_TRANSFORMATIONS:
try:
if page_transformation['name'] in TRANFORMATION_CHOICES:
output = TRANFORMATION_CHOICES[page_transformation['name']] % eval(page_transformation['arguments'])
transformation_list.append(output)
except Exception, e:
if request.user.is_staff:
messages.warning(request, _(u'Error for transformation %(transformation)s:, %(error)s') %
{'transformation':page_transformation.get_transformation_display(),
'error':e})
else:
pass
tranformation_string = ' '.join(transformation_list)
try:
filepath = StagingFile.get(staging_file_id).filepath
output_file = convert(filepath, STAGING_FILES_PREVIEW_SIZE, cleanup=False)
output_file = convert(filepath, size=STAGING_FILES_PREVIEW_SIZE, extra_options=tranformation_string, cleanup=False)
return serve_file(request, File(file=open(output_file, 'r')))
except Exception, e:
return serve_file(request, File(file=open('%simages/1297211435_error.png' % settings.MEDIA_ROOT, 'r')))