我想覆盖 rails 如何创建视图 *.html.erb
在 ActionView 包中,我已经尝试过这样做。正在做
class ERB
class Compiler # :nodoc:
..
class Buffer # :nodoc:
def compile(s)
...
#It stores in a buffer each ruby chunk in the views inside of a Buffer.
end
end
end
...
# Here it is where is called compile method.
# The thing is that if my view is made up of several *.html.erb files such as partials this method will be invoked each time.
#INVOKED PER EACH html.erb file
def initialize(str, safe_level=nil, trim_mode=nil, eoutvar='_erbout')
puts ">>> initialize"
@safe_level = safe_level
# ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.update(:default => "%d %b %Y")
compiler = ERB::Compiler.new(trim_mode)
# raise "need a block"
# ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.update(:default => nil)
set_eoutvar(compiler, eoutvar)
@src = compiler.compile(str)
@filename = nil
end
end
end
我想知道底部的过程何时开始。我的意思是我必须重写哪个类、文件等,以查看 Rails 从何处开始为特定视图调用所有 html.erb。
我想我应该在这里:
require 'delegate'
require 'optparse'
require 'fileutils'
require 'tempfile'
require 'erb'
module Rails
module Generator
module Commands
class Create
# Generate a file for a Rails application using an ERuby template.
# Looks up and evaluates a template by name and writes the result.
#
# The ERB template uses explicit trim mode to best control the
# proliferation of whitespace in generated code. <%- trims leading
# whitespace; -%> trims trailing whitespace including one newline.
#
# A hash of template options may be passed as the last argument.
# The options accepted by the file are accepted as well as :assigns,
# a hash of variable bindings. Example:
# template 'foo', 'bar', :assigns => { :action => 'view' }
#
# Template is implemented in terms of file. It calls file with a
# block which takes a file handle and returns its rendered contents.
def template(relative_source, relative_destination, template_options = {})
puts "EEEEEEEEEEEEEEEEEEEEEe"
file(relative_source, relative_destination, template_options) do |file|
# Evaluate any assignments in a temporary, throwaway binding.
vars = template_options[:assigns] || {}
b = template_options[:binding] || binding
vars.each { |k,v| eval "#{k} = vars[:#{k}] || vars['#{k}']", b }
# Render the source file with the temporary binding.
ERB.new(file.read, nil, '-').result(b)
end
end
end
end
end
end
但是我没有从 puts 方法中找到任何痕迹。
所有重命名都放在一个名为的文件/lib/*_extensions.erb
中,/config/initializers/extensions.rb
我有下一个:
Dir[File.dirname(__FILE__) + "/../../lib/*_extensions.rb"].each do |fn|
require fn
end
我不想透露我为什么这样做。
谢谢