106 lines
3.4 KiB
Ruby
106 lines
3.4 KiB
Ruby
module ActionView
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module ViewPaths
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extend ActiveSupport::Concern
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included do
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class_attribute :_view_paths
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self._view_paths = ActionView::PathSet.new
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_view_paths.freeze
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end
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delegate :template_exists?, :any_templates?, :view_paths, :formats, :formats=,
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:locale, :locale=, to: :lookup_context
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module ClassMethods
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def _prefixes # :nodoc:
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@_prefixes ||= begin
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return local_prefixes if superclass.abstract?
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local_prefixes + superclass._prefixes
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end
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end
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private
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# Override this method in your controller if you want to change paths prefixes for finding views.
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# Prefixes defined here will still be added to parents' <tt>._prefixes</tt>.
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def local_prefixes
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[controller_path]
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end
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end
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# The prefixes used in render "foo" shortcuts.
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def _prefixes # :nodoc:
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self.class._prefixes
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end
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# <tt>LookupContext</tt> is the object responsible for holding all
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# information required for looking up templates, i.e. view paths and
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# details. Check <tt>ActionView::LookupContext</tt> for more information.
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def lookup_context
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@_lookup_context ||=
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ActionView::LookupContext.new(self.class._view_paths, details_for_lookup, _prefixes)
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end
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def details_for_lookup
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{}
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end
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# Append a path to the list of view paths for the current <tt>LookupContext</tt>.
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#
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# ==== Parameters
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# * <tt>path</tt> - If a String is provided, it gets converted into
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# the default view path. You may also provide a custom view path
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# (see ActionView::PathSet for more information)
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def append_view_path(path)
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lookup_context.view_paths.push(*path)
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end
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# Prepend a path to the list of view paths for the current <tt>LookupContext</tt>.
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#
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# ==== Parameters
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# * <tt>path</tt> - If a String is provided, it gets converted into
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# the default view path. You may also provide a custom view path
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# (see ActionView::PathSet for more information)
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def prepend_view_path(path)
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lookup_context.view_paths.unshift(*path)
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end
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module ClassMethods
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# Append a path to the list of view paths for this controller.
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#
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# ==== Parameters
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# * <tt>path</tt> - If a String is provided, it gets converted into
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# the default view path. You may also provide a custom view path
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# (see ActionView::PathSet for more information)
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def append_view_path(path)
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self._view_paths = view_paths + Array(path)
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end
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# Prepend a path to the list of view paths for this controller.
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#
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# ==== Parameters
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# * <tt>path</tt> - If a String is provided, it gets converted into
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# the default view path. You may also provide a custom view path
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# (see ActionView::PathSet for more information)
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def prepend_view_path(path)
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self._view_paths = ActionView::PathSet.new(Array(path) + view_paths)
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end
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# A list of all of the default view paths for this controller.
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def view_paths
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_view_paths
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end
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# Set the view paths.
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#
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# ==== Parameters
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# * <tt>paths</tt> - If a PathSet is provided, use that;
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# otherwise, process the parameter into a PathSet.
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def view_paths=(paths)
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self._view_paths = ActionView::PathSet.new(Array(paths))
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end
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end
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end
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end
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