def admin_preview(self, node, icons_only=False):
request = get_current_request()
template = 'admin/media_tree/filenode/includes/preview.html'
if not get_media_backend():
icons_only = True
template = 'media_tree/filenode/includes/icon.html'
# TODO SPLIT preview.html in two: one that doesn't need media backend!
thumb_size_key = get_request_attr(request,
'thumbnail_size') or 'default'
preview = render_to_string(
template, {
'node':
node,
'preview_file':
node.get_icon_file()
if icons_only else node.get_preview_file(),
'class':
'collapsed' if node.is_folder() else '',
'thumbnail_size':
app_settings.MEDIA_TREE_ADMIN_THUMBNAIL_SIZES[thumb_size_key]
})
if node.is_folder():
preview += render_to_string(
template, {
'node':
node,
'preview_file':
node.get_preview_file(default_name='_folder_expanded'),
'class':
'expanded'
})
return preview
def formfield_for_dbfield(self, db_field, **kwargs):
if db_field.name == 'parent' and issubclass(db_field.rel.to, FileNode):
# overriding formfield_for_dbfield, thus bypassign both Django's and mptt's
# formfield_for_foreignkey method, and also preventing Django from wrapping
# field with RelatedFieldWidgetWrapper ("add" button resulting in a file add form)
# Issue 25 - Only allow folders registerred in the current site.
valid_targets = FileNode.tree.filter(**db_field.rel.limit_choices_to).filter(
site=Site.objects.get_current())
request = kwargs['request']
node = get_request_attr(request, 'save_node', None)
if node:
# Exclude invalid folders, e.g. node cannot be a child of itself
# (ripped from mptt.forms.MoveNodeForm)
opts = node._mptt_meta
valid_targets = valid_targets.exclude(**{
opts.tree_id_attr: getattr(node, opts.tree_id_attr),
'%s__gte' % opts.left_attr: getattr(node, opts.left_attr),
'%s__lte' % opts.right_attr: getattr(node, opts.right_attr),
})
field = FileNodeChoiceField(queryset=valid_targets, label=capfirst(db_field.verbose_name), required=not db_field.blank)
return field
return super(FileNodeAdmin, self).formfield_for_dbfield(db_field,
**kwargs)
def admin_preview(self, node, icons_only=False):
request = get_current_request()
template = 'admin/media_tree/filenode/includes/preview.html'
thumbnail_backend = get_media_backend(handles_media_types=(node.media_type,), supports_thumbnails=True)
if not thumbnail_backend:
icons_only = True
template = 'media_tree/filenode/includes/icon.html'
# TODO SPLIT preview.html in two: one that doesn't need media backend!
context = {
'node': node,
'preview_file': node.get_icon_file() if icons_only else node.get_preview_file(),
'class': 'collapsed' if node.is_folder() else '',
}
if not icons_only:
thumb_size_key = get_request_attr(request, 'thumbnail_size') or 'default'
context['thumbnail_size'] = app_settings.MEDIA_TREE_ADMIN_THUMBNAIL_SIZES[thumb_size_key]
thumb = thumbnail_backend.get_thumbnail(context['preview_file'], {'size': context['thumbnail_size']})
context['thumb'] = thumb
preview = render_to_string(template, context)
if node.is_folder():
preview += render_to_string(template, {
'node': node,
'preview_file': node.get_preview_file(default_name='_folder_expanded'),
'class': 'expanded'
})
return preview
def formfield_for_dbfield(self, db_field, **kwargs):
if db_field.name == 'parent' and issubclass(db_field.rel.to, FileNode):
# overriding formfield_for_dbfield, thus bypassign both Django's and mptt's
# formfield_for_foreignkey method, and also preventing Django from wrapping
# field with RelatedFieldWidgetWrapper ("add" button resulting in a file add form)
valid_targets = FileNode.tree.filter(
**db_field.rel.limit_choices_to)
request = kwargs['request']
node = get_request_attr(request, 'save_node', None)
if node:
# Exclude invalid folders, e.g. node cannot be a child of itself
# (ripped from mptt.forms.MoveNodeForm)
opts = node._mptt_meta
valid_targets = valid_targets.exclude(
**{
opts.tree_id_attr:
getattr(node, opts.tree_id_attr),
'%s__gte' % opts.left_attr:
getattr(node, opts.left_attr),
'%s__lte' % opts.right_attr:
getattr(node, opts.right_attr),
})
field = FileNodeChoiceField(queryset=valid_targets,
label=capfirst(db_field.verbose_name),
required=not db_field.blank)
return field
return super(FileNodeAdmin,
self).formfield_for_dbfield(db_field, **kwargs)
def save_model(self, request, obj, form, change):
if not change:
if not obj.node_type:
obj.node_type = get_request_attr(request, 'save_node_type',
None)
obj.attach_user(request.user, change)
super(FileNodeAdmin, self).save_model(request, obj, form, change)
def save_model(self, request, obj, form, change):
"""
Given a model instance save it to the database.
"""
if not change:
if not obj.node_type:
obj.node_type = get_request_attr(request, 'save_node_type', None)
super(FileNodeAdmin, self).save_model(request, obj, form, change)
def get_form(self, request, *args, **kwargs):
if get_request_attr(request, 'save_node_type', None) == FileNode.FOLDER:
self.form = FolderForm
else:
self.form = FileForm
self.fieldsets = self.form.Meta.fieldsets
form = super(FileNodeAdmin, self).get_form(request, *args, **kwargs)
return form
def save_model(self, request, obj, form, change):
"""
Given a model instance save it to the database.
"""
if not change:
if not obj.node_type:
obj.node_type = get_request_attr(request, 'save_node_type',
None)
obj.attach_user(request.user, change)
super(FileNodeAdmin, self).save_model(request, obj, form, change)
def get_form(self, request, *args, **kwargs):
if get_request_attr(request, 'save_node_type',
None) == FileNode.FOLDER:
self.form = FolderForm
else:
self.form = FileForm
self.fieldsets = self.form.Meta.fieldsets
form = super(FileNodeAdmin, self).get_form(request, *args, **kwargs)
return form
def admin_preview(self, node, icons_only=False):
request = get_current_request()
template = 'admin/media_tree/filenode/includes/preview.html'
thumbnail_backend = get_media_backend(
handles_media_types=(node.media_type, ), supports_thumbnails=True)
if not thumbnail_backend:
icons_only = True
template = 'media_tree/filenode/includes/icon.html'
# TODO SPLIT preview.html in two: one that doesn't need media backend!
context = {
'node':
node,
'preview_file':
node.get_icon_file() if icons_only else node.get_preview_file(),
'class':
'collapsed' if node.is_folder() else '',
}
if not icons_only:
thumb_size_key = get_request_attr(request,
'thumbnail_size') or 'default'
context[
'thumbnail_size'] = app_settings.MEDIA_TREE_ADMIN_THUMBNAIL_SIZES[
thumb_size_key]
thumb = thumbnail_backend.get_thumbnail(
context['preview_file'], {'size': context['thumbnail_size']})
context['thumb'] = thumb
preview = render_to_string(template, context)
if node.is_folder():
preview += render_to_string(
template, {
'node':
node,
'preview_file':
node.get_preview_file(default_name='_folder_expanded'),
'class':
'expanded'
})
return preview
def get_results(self, request):
""" Temporarily decreases the `level` attribute of all search results
in order to prevent indendation when displaying them. """
super(FileNodeChangeList, self).get_results(request)
try:
reduce_levels = abs(int(get_request_attr(
request, 'reduce_levels', 0)))
except TypeError:
reduce_levels = 0
is_filtered = self.is_filtered(request)
if is_filtered or reduce_levels:
for item in self.result_list:
item.prevent_save()
item.actual_level = item.level
if is_filtered:
item.reduce_levels = item.level
item.level = 0
else:
item.reduce_levels = reduce_levels
item.level = max(0, item.level - reduce_levels)
def get_results(self, request):
"""
Temporarily decreases the `level` attribute of all search results in
order to prevent indendation when displaying them.
"""
super(MediaTreeChangeList, self).get_results(request)
try:
reduce_levels = abs(int(get_request_attr(request, 'reduce_levels', 0)))
except TypeError:
reduce_levels = 0
is_filtered = self.is_filtered(request)
if is_filtered or reduce_levels:
for item in self.result_list:
item.prevent_save()
item.actual_level = item.level
if is_filtered:
item.reduce_levels = item.level
item.level = 0
else:
item.reduce_levels = reduce_levels
item.level = max(0, item.level - reduce_levels)
def admin_preview(self, node, icons_only=False):
request = get_current_request()
template = 'admin/media_tree/filenode/includes/preview.html'
if not get_media_backend():
icons_only = True
template = 'media_tree/filenode/includes/icon.html'
# TODO SPLIT preview.html in two: one that doesn't need media backend!
thumb_size_key = get_request_attr(request, 'thumbnail_size') or 'default'
preview = render_to_string(template, {
'node': node,
'preview_file': node.get_icon_file() if icons_only else node.get_preview_file(),
'class': 'collapsed' if node.is_folder() else '',
'thumbnail_size': app_settings.MEDIA_TREE_ADMIN_THUMBNAIL_SIZES[thumb_size_key]
})
if node.is_folder():
preview += render_to_string(template, {
'node': node,
'preview_file': node.get_preview_file(default_name='_folder_expanded'),
'class': 'expanded'
})
return preview
def get_parent_folder(self, request):
return get_request_attr(request, 'parent_folder', None)
def get_parent_folder(self, request):
return get_request_attr(request, 'parent_folder', None)
def save_model(self, request, obj, form, change):
if not change:
if not obj.node_type:
obj.node_type = get_request_attr(request, 'save_node_type', None)
obj.attach_user(request.user, change)
super(FileNodeAdmin, self).save_model(request, obj, form, change)
