class ActionDispatch::ExceptionWrapper
Attributes
env[R]
exception[R]
file[R]
line_number[R]
Public Class Methods
new(env, exception)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 32 def initialize(env, exception) @env = env @exception = original_exception(exception) expand_backtrace if exception.is_a?(SyntaxError) || exception.try(:original_exception).try(:is_a?, SyntaxError) end
status_code_for_exception(class_name)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 59 def self.status_code_for_exception(class_name) Rack::Utils.status_code(@@rescue_responses[class_name]) end
Public Instance Methods
application_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 47 def application_trace clean_backtrace(:silent) end
framework_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 51 def framework_trace clean_backtrace(:noise) end
full_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 55 def full_trace clean_backtrace(:all) end
rescue_template()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 39 def rescue_template @@rescue_templates[@exception.class.name] end
source_extract()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 63 def source_extract if application_trace && trace = application_trace.first file, line, _ = trace.split(":") @file = file @line_number = line.to_i source_fragment(@file, @line_number) end end
status_code()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 43 def status_code self.class.status_code_for_exception(@exception.class.name) end
Private Instance Methods
backtrace_cleaner()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 94 def backtrace_cleaner @backtrace_cleaner ||= @env['action_dispatch.backtrace_cleaner'] end
clean_backtrace(*args)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 86 def clean_backtrace(*args) if backtrace_cleaner backtrace_cleaner.clean(@exception.backtrace, *args) else @exception.backtrace end end
expand_backtrace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 110 def expand_backtrace @exception.backtrace.unshift( @exception.to_s.split("\n") ).flatten! end
original_exception(exception)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 74 def original_exception(exception) if registered_original_exception?(exception) exception.original_exception else exception end end
registered_original_exception?(exception)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 82 def registered_original_exception?(exception) exception.respond_to?(:original_exception) && @@rescue_responses.has_key?(exception.original_exception.class.name) end
source_fragment(path, line)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 98 def source_fragment(path, line) return unless Rails.respond_to?(:root) && Rails.root full_path = Rails.root.join(path) if File.exist?(full_path) File.open(full_path, "r") do |file| start = [line - 3, 0].max lines = file.each_line.drop(start).take(6) Hash[*(start+1..(lines.count+start)).zip(lines).flatten] end end end