diff options
Diffstat (limited to 'actionpack/lib/action_view/template_handlers/compilable.rb')
-rw-r--r-- | actionpack/lib/action_view/template_handlers/compilable.rb | 118 |
1 files changed, 2 insertions, 116 deletions
diff --git a/actionpack/lib/action_view/template_handlers/compilable.rb b/actionpack/lib/action_view/template_handlers/compilable.rb index 783456ab53..a0ebaefeef 100644 --- a/actionpack/lib/action_view/template_handlers/compilable.rb +++ b/actionpack/lib/action_view/template_handlers/compilable.rb @@ -1,21 +1,8 @@ module ActionView module TemplateHandlers module Compilable - def self.included(base) base.extend ClassMethod - - # Map method names to their compile time - base.cattr_accessor :compile_time - base.compile_time = {} - - # Map method names to the names passed in local assigns so far - base.cattr_accessor :template_args - base.template_args = {} - - # Count the number of inline templates - base.cattr_accessor :inline_template_count - base.inline_template_count = 0 end module ClassMethod @@ -24,111 +11,10 @@ module ActionView true end end - - def render(template) - @view.send :execute, template - end - - # Compile and evaluate the template's code - def compile_template(template) - return unless compile_template?(template) - - render_symbol = assign_method_name(template) - render_source = create_template_source(template, render_symbol) - line_offset = self.template_args[render_symbol].size + self.line_offset - - begin - file_name = template.filename || 'compiled-template' - ActionView::Base::CompiledTemplates.module_eval(render_source, file_name, -line_offset) - rescue Exception => e # errors from template code - if @view.logger - @view.logger.debug "ERROR: compiling #{render_symbol} RAISED #{e}" - @view.logger.debug "Function body: #{render_source}" - @view.logger.debug "Backtrace: #{e.backtrace.join("\n")}" - end - - raise ActionView::TemplateError.new(template, @view.assigns, e) - end - - self.compile_time[render_symbol] = Time.now - # logger.debug "Compiled template #{file_name || template}\n ==> #{render_symbol}" if logger - end - - private - - # Method to check whether template compilation is necessary. - # The template will be compiled if the inline template or file has not been compiled yet, - # if local_assigns has a new key, which isn't supported by the compiled code yet, - # or if the file has changed on disk and checking file mods hasn't been disabled. - def compile_template?(template) - method_key = template.method_key - render_symbol = @view.method_names[method_key] - - compile_time = self.compile_time[render_symbol] - if compile_time && supports_local_assigns?(render_symbol, template.locals) - if template.filename && !@view.cache_template_loading - template_changed_since?(template.filename, compile_time) - end - else - true - end - end - - def assign_method_name(template) - @view.method_names[template.method_key] ||= compiled_method_name(template) - end - def compiled_method_name(template) - ['_run', self.class.to_s.demodulize.underscore, compiled_method_name_file_path_segment(template.filename)].compact.join('_').to_sym + def render(template, local_assigns = {}) + @view.send(:execute, template, local_assigns) end - - def compiled_method_name_file_path_segment(file_name) - if file_name - s = File.expand_path(file_name) - s.sub!(/^#{Regexp.escape(File.expand_path(RAILS_ROOT))}/, '') if defined?(RAILS_ROOT) - s.gsub!(/([^a-zA-Z0-9_])/) { $1.ord } - s - else - (self.inline_template_count += 1).to_s - end - end - - # Method to create the source code for a given template. - def create_template_source(template, render_symbol) - body = compile(template) - - self.template_args[render_symbol] ||= {} - locals_keys = self.template_args[render_symbol].keys | template.locals.keys - self.template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h } - - locals_code = "" - locals_keys.each do |key| - locals_code << "#{key} = local_assigns[:#{key}]\n" - end - - <<-end_src - def #{render_symbol}(local_assigns) - old_output_buffer = output_buffer;#{locals_code}#{body} - ensure - self.output_buffer = old_output_buffer - end - end_src - end - - # Return true if the given template was compiled for a superset of the keys in local_assigns - def supports_local_assigns?(render_symbol, local_assigns) - local_assigns.empty? || - ((args = self.template_args[render_symbol]) && local_assigns.all? { |k,_| args.has_key?(k) }) - end - - # Method to handle checking a whether a template has changed since last compile; isolated so that templates - # not stored on the file system can hook and extend appropriately. - def template_changed_since?(file_name, compile_time) - lstat = File.lstat(file_name) - compile_time < lstat.mtime || - (lstat.symlink? && compile_time < File.stat(file_name).mtime) - end - end end end |