+++ /dev/null
-# coding: utf-8
-
-import os
-import re
-from django.template import Library, Node, Variable, VariableDoesNotExist, TemplateSyntaxError
-from django.conf import settings
-from django.utils.encoding import force_unicode
-
-# filebrowser imports
-from filebrowser.fb_settings import MEDIA_ROOT, MEDIA_URL, VERSIONS
-from filebrowser.functions import _url_to_path, _path_to_url, _get_version_path, _version_generator
-from filebrowser.base import FileObject
-
-import logging
-logger = logging.getLogger("django.filebrowser")
-
-register = Library()
-
-
-class VersionNode(Node):
- def __init__(self, src, version_prefix):
- self.src = Variable(src)
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")):
- self.version_prefix = version_prefix[1:-1]
- else:
- self.version_prefix = None
- self.version_prefix_var = Variable(version_prefix)
-
- def render(self, context):
- try:
- source = self.src.resolve(context)
- except VariableDoesNotExist:
- return None
-
- if self.version_prefix:
- version_prefix = self.version_prefix
- else:
- try:
- version_prefix = self.version_prefix_var.resolve(context)
- except VariableDoesNotExist:
- return None
-
- try:
- version_path = _get_version_path(_url_to_path(str(source)), version_prefix)
- if not os.path.isfile(os.path.join(MEDIA_ROOT, version_path)):
- # create version
- version_path = _version_generator(_url_to_path(str(source)), version_prefix)
- elif os.path.getmtime(os.path.join(MEDIA_ROOT, _url_to_path(str(source)))) > os.path.getmtime(os.path.join(MEDIA_ROOT, version_path)):
- # recreate version if original image was updated
- version_path = _version_generator(_url_to_path(str(source)), version_prefix, force=True)
- return _path_to_url(version_path)
- except Exception:
- logger.exception("Version error")
- return u""
-
-
-def version(parser, token):
- """
- Displaying a version of an existing Image according to the predefined VERSIONS settings (see fb_settings).
- {% version field_name version_prefix %}
-
- Use {% version my_image 'medium' %} in order to display the medium-size
- version of an Image stored in a field name my_image.
-
- version_prefix can be a string or a variable. if version_prefix is a string, use quotes.
- """
-
- try:
- tag, src, version_prefix = token.split_contents()
- except:
- raise TemplateSyntaxError("%s tag requires 2 arguments" % token.contents.split()[0])
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")) and version_prefix.lower()[1:-1] not in VERSIONS:
- raise TemplateSyntaxError("%s tag received bad version_prefix %s" % (tag, version_prefix))
- return VersionNode(src, version_prefix)
-
-
-class VersionObjectNode(Node):
-
- def __init__(self, src, version_prefix, var_name):
- self.var_name = var_name
- self.src = Variable(src)
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")):
- self.version_prefix = version_prefix[1:-1]
- else:
- self.version_prefix = None
- self.version_prefix_var = Variable(version_prefix)
-
- def render(self, context):
- try:
- source = self.src.resolve(context)
- except VariableDoesNotExist:
- return None
- if self.version_prefix:
- version_prefix = self.version_prefix
- else:
- try:
- version_prefix = self.version_prefix_var.resolve(context)
- except VariableDoesNotExist:
- return None
- try:
- version_path = _get_version_path(_url_to_path(str(source)), version_prefix)
- if not os.path.isfile(os.path.join(MEDIA_ROOT, version_path)):
- # create version
- version_path = _version_generator(_url_to_path(str(source)), version_prefix)
- elif os.path.getmtime(os.path.join(MEDIA_ROOT, _url_to_path(str(source)))) > os.path.getmtime(os.path.join(MEDIA_ROOT, version_path)):
- # recreate version if original image was updated
- version_path = _version_generator(_url_to_path(str(source)), version_prefix, force=True)
- context[self.var_name] = FileObject(version_path)
- except:
- context[self.var_name] = ""
- return ''
-
-
-def version_object(parser, token):
- """
- Returns a context variable 'version_object'.
- {% version_object field_name version_prefix %}
-
- Use {% version_object my_image 'medium' %} in order to retrieve the medium
- version of an Image stored in a field name my_image.
- Use {% version_object my_image 'medium' as var %} in order to use 'var' as
- your context variable.
-
- version_prefix can be a string or a variable. if version_prefix is a string, use quotes.
- """
-
- try:
- #tag, src, version_prefix = token.split_contents()
- tag, arg = token.contents.split(None, 1)
- except:
- raise TemplateSyntaxError("%s tag requires arguments" % token.contents.split()[0])
- m = re.search(r'(.*?) (.*?) as (\w+)', arg)
- if not m:
- raise TemplateSyntaxError("%r tag had invalid arguments" % tag)
- src, version_prefix, var_name = m.groups()
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")) and version_prefix.lower()[1:-1] not in VERSIONS:
- raise TemplateSyntaxError("%s tag received bad version_prefix %s" % (tag, version_prefix))
- return VersionObjectNode(src, version_prefix, var_name)
-
-
-class VersionSettingNode(Node):
-
- def __init__(self, version_prefix):
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")):
- self.version_prefix = version_prefix[1:-1]
- else:
- self.version_prefix = None
- self.version_prefix_var = Variable(version_prefix)
-
- def render(self, context):
- if self.version_prefix:
- version_prefix = self.version_prefix
- else:
- try:
- version_prefix = self.version_prefix_var.resolve(context)
- except VariableDoesNotExist:
- return None
- context['version_setting'] = VERSIONS[version_prefix]
- return ''
-
-
-def version_setting(parser, token):
- """
- Get Information about a version setting.
- """
-
- try:
- tag, version_prefix = token.split_contents()
- except:
- raise TemplateSyntaxError("%s tag requires 1 argument" % token.contents.split()[0])
- if (version_prefix[0] == version_prefix[-1] and version_prefix[0] in ('"', "'")) and version_prefix.lower()[1:-1] not in VERSIONS:
- raise TemplateSyntaxError("%s tag received bad version_prefix %s" % (tag, version_prefix))
- return VersionSettingNode(version_prefix)
-
-
-register.tag(version)
-register.tag(version_object)
-register.tag(version_setting)
fnp / redakcja.git / blobdiff