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module AbstractController
module ViewPaths
extend ActiveSupport::Concern
included do
class_attribute :_view_paths
self._view_paths = ActionView::PathSet.new
self._view_paths.freeze
end
delegate :find_template, :template_exists?, :view_paths, :formats, :formats=,
:locale, :locale=, :to => :lookup_context
# LookupContext is the object responsible to hold all information required to lookup
# templates, i.e. view paths and details. Check ActionView::LookupContext for more
# information.
def lookup_context
@lookup_context ||= ActionView::LookupContext.new(self.class._view_paths, details_for_lookup)
end
def details_for_lookup
{ }
end
def append_view_path(path)
lookup_context.view_paths.push(*path)
end
def prepend_view_path(path)
lookup_context.view_paths.unshift(*path)
end
module ClassMethods
# Append a path to the list of view paths for this controller.
#
# ==== Parameters
# * <tt>path</tt> - If a String is provided, it gets converted into
# the default view path. You may also provide a custom view path
# (see ActionView::PathSet for more information)
def append_view_path(path)
self.view_paths = view_paths.dup + Array(path)
end
# Prepend a path to the list of view paths for this controller.
#
# ==== Parameters
# * <tt>path</tt> - If a String is provided, it gets converted into
# the default view path. You may also provide a custom view path
# (see ActionView::PathSet for more information)
def prepend_view_path(path)
self.view_paths = Array(path) + view_paths.dup
end
# A list of all of the default view paths for this controller.
def view_paths
_view_paths
end
# Set the view paths.
#
# ==== Parameters
# * <tt>paths</tt> - If a PathSet is provided, use that;
# otherwise, process the parameter into a PathSet.
def view_paths=(paths)
self._view_paths = ActionView::Base.process_view_paths(paths)
self._view_paths.freeze
end
end
end
end
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