diff options
Diffstat (limited to 'actionview/lib/action_view/template/resolver.rb')
| -rw-r--r-- | actionview/lib/action_view/template/resolver.rb | 164 |
1 files changed, 51 insertions, 113 deletions
diff --git a/actionview/lib/action_view/template/resolver.rb b/actionview/lib/action_view/template/resolver.rb index 08dd6fb510..3b4c8a94bc 100644 --- a/actionview/lib/action_view/template/resolver.rb +++ b/actionview/lib/action_view/template/resolver.rb @@ -63,26 +63,11 @@ module ActionView # Cache the templates returned by the block def cache(key, name, prefix, partial, locals) - if Resolver.caching? - @data[key][name][prefix][partial][locals] ||= canonical_no_templates(yield) - else - fresh_templates = yield - cached_templates = @data[key][name][prefix][partial][locals] - - if templates_have_changed?(cached_templates, fresh_templates) - @data[key][name][prefix][partial][locals] = canonical_no_templates(fresh_templates) - else - cached_templates || NO_TEMPLATES - end - end + @data[key][name][prefix][partial][locals] ||= canonical_no_templates(yield) end def cache_query(query) # :nodoc: - if Resolver.caching? - @query_cache[query] ||= canonical_no_templates(yield) - else - yield - end + @query_cache[query] ||= canonical_no_templates(yield) end def clear @@ -112,19 +97,6 @@ module ActionView def canonical_no_templates(templates) templates.empty? ? NO_TEMPLATES : templates end - - def templates_have_changed?(cached_templates, fresh_templates) - # if either the old or new template list is empty, we don't need to (and can't) - # compare modification times, and instead just check whether the lists are different - if cached_templates.blank? || fresh_templates.blank? - return fresh_templates.blank? != cached_templates.blank? - end - - cached_templates_max_updated_at = cached_templates.map(&:updated_at).max - - # if a template has changed, it will be now be newer than all the cached templates - fresh_templates.any? { |t| t.updated_at > cached_templates_max_updated_at } - end end cattr_accessor :caching, default: true @@ -143,14 +115,18 @@ module ActionView # Normalizes the arguments and passes it on to find_templates. def find_all(name, prefix = nil, partial = false, details = {}, key = nil, locals = []) + locals = locals.map(&:to_s).sort!.freeze + cached(key, [name, prefix, partial], details, locals) do - find_templates(name, prefix, partial, details) + find_templates(name, prefix, partial, details, false, locals) end end def find_all_anywhere(name, prefix, partial = false, details = {}, key = nil, locals = []) + locals = locals.map(&:to_s).sort!.freeze + cached(key, [name, prefix, partial], details, locals) do - find_templates(name, prefix, partial, details, true) + find_templates(name, prefix, partial, details, true, locals) end end @@ -165,13 +141,8 @@ module ActionView # This is what child classes implement. No defaults are needed # because Resolver guarantees that the arguments are present and # normalized. - def find_templates(name, prefix, partial, details, outside_app_allowed = false) - raise NotImplementedError, "Subclasses must implement a find_templates(name, prefix, partial, details, outside_app_allowed = false) method" - end - - # Helpers that builds a path. Useful for building virtual paths. - def build_path(name, prefix, partial) - Path.build(name, prefix, partial) + def find_templates(name, prefix, partial, details, outside_app_allowed = false, locals = []) + raise NotImplementedError, "Subclasses must implement a find_templates(name, prefix, partial, details, outside_app_allowed = false, locals = []) method" end # Handles templates caching. If a key is given and caching is on @@ -180,25 +151,13 @@ module ActionView # resolver is fresher before returning it. def cached(key, path_info, details, locals) name, prefix, partial = path_info - locals = locals.map(&:to_s).sort! if key @cache.cache(key, name, prefix, partial, locals) do - decorate(yield, path_info, details, locals) + yield end else - decorate(yield, path_info, details, locals) - end - end - - # Ensures all the resolver information is set in the template. - def decorate(templates, path_info, details, locals) - cached = nil - templates.each do |t| - t.locals = locals - t.formats = details[:formats] || [:html] if t.formats.empty? - t.variants = details[:variants] || [] if t.variants.empty? - t.virtual_path ||= (cached ||= build_path(*path_info)) + yield end end end @@ -209,34 +168,42 @@ module ActionView DEFAULT_PATTERN = ":prefix/:action{.:locale,}{.:formats,}{+:variants,}{.:handlers,}" def initialize(pattern = nil) - @pattern = pattern || DEFAULT_PATTERN + if pattern + ActiveSupport::Deprecation.warn "Specifying a custom path for #{self.class} is deprecated. Implement a custom Resolver subclass instead." + @pattern = pattern + else + @pattern = DEFAULT_PATTERN + end super() end private - def find_templates(name, prefix, partial, details, outside_app_allowed = false) + def find_templates(name, prefix, partial, details, outside_app_allowed = false, locals) path = Path.build(name, prefix, partial) - query(path, details, details[:formats], outside_app_allowed) + query(path, details, details[:formats], outside_app_allowed, locals) end - def query(path, details, formats, outside_app_allowed) + def query(path, details, formats, outside_app_allowed, locals) template_paths = find_template_paths_from_details(path, details) template_paths = reject_files_external_to_app(template_paths) unless outside_app_allowed template_paths.map do |template| - handler, format, variant = extract_handler_and_format_and_variant(template) - contents = File.binread(template) - - Template.new(contents, File.expand_path(template), handler, - virtual_path: path.virtual, - format: format, - variant: variant, - updated_at: mtime(template) - ) + build_template(template, path.virtual, locals) end end + def build_template(template, virtual_path, locals) + handler, format, variant = extract_handler_and_format_and_variant(template) + + FileTemplate.new(File.expand_path(template), handler, + virtual_path: virtual_path, + format: format, + variant: variant, + locals: locals + ) + end + def reject_files_external_to_app(files) files.reject { |filename| !inside_path?(@path, filename) } end @@ -285,11 +252,6 @@ module ActionView entry.gsub(/[*?{}\[\]]/, '\\\\\\&') end - # Returns the file mtime from the filesystem. - def mtime(p) - File.mtime(p) - end - # Extract handler, formats and variant from path. If a format cannot be found neither # from the path, or the handler, we should return the array of formats given # to the resolver. @@ -301,50 +263,22 @@ module ActionView handler = Template.handler_for_extension(extension) format, variant = pieces.last.split(EXTENSIONS[:variants], 2) if pieces.last - format &&= Template::Types[format] + format = if format + Template::Types[format]&.ref + else + if handler.respond_to?(:default_format) # default_format can return nil + handler.default_format + else + nil + end + end + # Template::Types[format] and handler.default_format can return nil [handler, format, variant] end end - # A resolver that loads files from the filesystem. It allows setting your own - # resolving pattern. Such pattern can be a glob string supported by some variables. - # - # ==== Examples - # - # Default pattern, loads views the same way as previous versions of rails, eg. when you're - # looking for <tt>users/new</tt> it will produce query glob: <tt>users/new{.{en},}{.{html,js},}{.{erb,haml},}</tt> - # - # FileSystemResolver.new("/path/to/views", ":prefix/:action{.:locale,}{.:formats,}{+:variants,}{.:handlers,}") - # - # This one allows you to keep files with different formats in separate subdirectories, - # eg. <tt>users/new.html</tt> will be loaded from <tt>users/html/new.erb</tt> or <tt>users/new.html.erb</tt>, - # <tt>users/new.js</tt> from <tt>users/js/new.erb</tt> or <tt>users/new.js.erb</tt>, etc. - # - # FileSystemResolver.new("/path/to/views", ":prefix/{:formats/,}:action{.:locale,}{.:formats,}{+:variants,}{.:handlers,}") - # - # If you don't specify a pattern then the default will be used. - # - # In order to use any of the customized resolvers above in a Rails application, you just need - # to configure ActionController::Base.view_paths in an initializer, for example: - # - # ActionController::Base.view_paths = FileSystemResolver.new( - # Rails.root.join("app/views"), - # ":prefix/:action{.:locale,}{.:formats,}{+:variants,}{.:handlers,}", - # ) - # - # ==== Pattern format and variables - # - # Pattern has to be a valid glob string, and it allows you to use the - # following variables: - # - # * <tt>:prefix</tt> - usually the controller path - # * <tt>:action</tt> - name of the action - # * <tt>:locale</tt> - possible locale versions - # * <tt>:formats</tt> - possible request formats (for example html, json, xml...) - # * <tt>:variants</tt> - possible request variants (for example phone, tablet...) - # * <tt>:handlers</tt> - possible handlers (for example erb, haml, builder...) - # + # A resolver that loads files from the filesystem. class FileSystemResolver < PathResolver def initialize(path, pattern = nil) raise ArgumentError, "path already is a Resolver class" if path.is_a?(Resolver) @@ -365,6 +299,10 @@ module ActionView # An Optimized resolver for Rails' most common case. class OptimizedFileSystemResolver < FileSystemResolver #:nodoc: + def initialize(path) + super(path) + end + private def find_template_paths_from_details(path, details) @@ -378,7 +316,7 @@ module ActionView # This regex match does double duty of finding only files which match # details (instead of just matching the prefix) and also filtering for # case-insensitive file systems. - !filename.match(regex) || + !regex.match?(filename) || File.directory?(filename) end.sort_by do |filename| # Because we scanned the directory, instead of checking for files @@ -424,8 +362,8 @@ module ActionView [new(""), new("/")] end - def decorate(*) - super.each { |t| t.virtual_path = nil } + def build_template(template, virtual_path, locals) + super(template, nil, locals) end end end |