1 files changed, 190 insertions, 0 deletions
diff --git a/lib/erubis/helpers/rails_form_helper.rb b/lib/erubis/helpers/rails_form_helper.rb
new file mode 100644
index 0000000..bc1520e
--- /dev/null
+++ b/lib/erubis/helpers/rails_form_helper.rb
@@ -0,0 +1,190 @@
+###
+### $Rev$
+### $Release: $
+### $Copyright$
+###
+
+
+module Erubis
+  module Helpers
+    module RailsFormHelper
+    end
+  end
+end
+
+
+module Erubis::Helpers::RailsFormHelper
+
+  def pp_template_filename(basename)
+    return "#{RAILS_ROOT}/app/views/#{controller.controller_name}/#{basename}.rhtml"
+  end
+
+  def pp_render_partial(basename)
+    basename = "_#{basename}" unless basename[0] == ?_
+    filename = pp_template_filename(basename)
+    klass = Erubis::Helpers::RailsHelper::PreprocessingEruby
+    eruby = klass.new(File.read(filename))
+    return eruby.evaluate(self)
+  end
+
+  def pp_error_on(object_name, method, &block)
+    s = ''
+    s << "<% _stag, _etag = _pp_error_tags(@#{object_name}.errors.on('#{method}'))%>"
+    s << "<%=_stag%>"
+    s << yield(object_name, method)
+    s << "<%=_etag%>"
+    return s
+  end
+
+  def _pp_error_tags(value)
+    return value ? ['<div class="fieldWithErrors">', '</div>'] : ['', '']
+  end
+
+  def _pp_remove_error_div(s)
+    s.sub!(/\A<div class="fieldWithErrors">(.*)<\/div>\z/, '\1')
+    return s
+  end
+
+  def pp_tag_helper(helper, object_name, method, options={})
+    if object_name.is_a?(ActionView::Helpers::FormHelper)
+      object_name = object_name.object_name
+    end
+    unless options.key?(:value) || options.key?('value')
+      options['value'] = _?("h @#{object_name}.#{method}")
+    end
+    $stderr.puts "*** debug: pp_tag_helper(): options=#{options.inspect}"
+    return pp_error_on(object_name, method) {
+      s = __send__(helper, object_name, method, options)
+      _pp_remove_error_div(s)
+    }
+  end
+
+  def pp_form_tag(url_for_options={}, options={}, *parameters_for_url, &block)
+    return form_tag(url_for_options, options, *parameters_for_url, &block)
+  end
+
+  #--
+  #def pp_form_for(object_name, *args, &block)
+  #  return form_for(object_name, *args, &block)
+  #end
+  #++
+
+  def pp_text_field(object_name, method, options={})
+    return pp_tag_helper(:text_field, object_name, method, options)
+  end
+
+  def pp_password_field(object_name, method, options={})
+    return pp_tag_helper(:password_field, object_name, method, options)
+  end
+
+  def pp_hidden_field(object_name, method, options={})
+    return pp_tag_helper(:hidden_field, object_name, method, options)
+  end
+
+  def pp_file_field(object_name, method, options={})
+    return pp_tag_helper(:file_field, object_name, method, options)
+  end
+
+  def pp_text_area(object_name, method, options={})
+    return pp_tag_helper(:text_area, object_name, method, options)
+  end
+
+  def pp_check_box(object_name, method, options={}, checked_value="1", unchecked_value="0")
+    s = check_box(object_name, method, options, checked_value, unchecked_value)
+    s.sub!(/\schecked=\"checked\"/, '')
+    s.sub!(/type="checkbox"/, "\\&<%= _pp_check_box_checked?(@#{object_name}.#{method}, #{checked_value.inspect}) ? ' checked=\"checked\"' : '' %>")
+    return pp_error_on(object_name, method) { _pp_remove_error_div(s) }
+  end
+
+  def _pp_check_box_checked?(value, checked_value)
+    return ActionView::Helpers::InstanceTag::check_box_checked?(value, checked_value)
+  end
+
+  def pp_radio_button(object_name, method, tag_value, options={})
+    s = radio_button(object_name, method, tag_value, options)
+    s.sub!(/\schecked=\"checked\"/, '')
+    s.sub!(/type="radio"/, "\\&<%= _pp_radio_button_checked?(@#{object_name}.#{method}, #{tag_value.inspect}) ? ' checked=\"checked\"' : '' %>")
+    return pp_error_on(object_name, method) { _pp_remove_error_div(s) }
+  end
+
+  def _pp_radio_button_checked?(value, tag_value)
+    return ActionView::Helpers::InstanceTag::radio_button_checked?(value, tag_value)
+  end
+
+  def _pp_select(object, method, collection, priority_collection, options={}, html_options={})
+    return pp_error_on(object, method) do
+      s = ""
+      ## start tag
+      s << "<select id=\"#{object}_#{method}\" name=\"#{object}[#{method}]\""
+      for key, val in html_options:
+          s << " #{key}=\"#{val}\""
+      end
+      s << ">\n"
+      ## selected table
+      key = options.key?(:value) ? :value : (options.key?('value') ? 'value' : nil)
+      if    key.nil?                ;  selected = "@#{object}.#{method}"
+      elsif (val=options[key]).nil? ;  selected = nil
+      elsif val =~ /\A<%=(.*)%>\z/  ;  selected = $1
+      else                          ;  selected = val.inspect
+      end
+      s << "<% _table = {#{selected}=>' selected=\"selected\"'} %>\n" if selected
+      ## <option> tags
+      if options[:include_blank] || options['include_blank']
+        s << "<option value=\"\"></option>\n"
+      end
+      unless priority_collection.blank?
+        _pp_select_options(s, priority_collection, selected, 'delete')
+        s << "<option value=\"\">-------------</option>\n"
+      end
+      _pp_select_options(s, collection, selected, '[]')
+      ## end tag
+      s << "</select>"
+      s
+    end
+  end
+
+  def _pp_select_options(s, collection, selected, operator)
+    for item in collection
+      value, text = item.is_a?(Array) ? item : [item, item]
+      if !selected
+        t = ''
+      elsif operator == 'delete'
+        t = "<%= _table.delete(#{value.inspect}) %>"
+      else
+        t = "<%= _table[#{value.inspect}] %>"
+      end
+      s << "<option value=\"#{h value}\"#{t}>#{h text}</option>\n"
+    end
+  end
+
+  def pp_select(object, method, collection, options={}, html_options={})
+    return _pp_select(object, method, collection, nil, options, html_options)
+  end
+
+  def pp_collection_select(object, method, collection, value_method, text_method, options={}, html_options={})
+    collection2 = collection.collect { |e|
+      [e.__send__(value_method), e.__send__(text_method)]
+    }
+    return _pp_select(object, method, collection2, nil, options, html_options)
+  end
+
+  def pp_country_select(object, method, priority_countries=nil, options={}, html_options={})
+    collection = ActionView::Helpers::FormOptionsHelper::COUNTRIES
+    return _pp_select(object, method, collection, priority_countries, options, html_options)
+  end
+
+  def pp_time_zone_select(object, method, priority_zones=nil, options={}, html_options={})
+    model = options[:model] || options['model'] || TimeZone
+    collection = model.all.collect { |e| [e.name, e.to_s] }
+    return _pp_select(object, method, collection, priority_zones, options, html_options)
+  end
+
+  def pp_submit_tag(value="Save changes", options={})
+    return submit_tag(value, options)
+  end
+
+  def pp_image_submit_tag(source, options={})
+    return image_submit_tag(source, options)
+  end
+
+end