Class: Ditz::ErbHtml

Inherits:
Object show all
Defined in:
lib/html.rb

Overview

pass through any variables needed for template generation, and add a bunch of HTML formatting utility methods.

Instance Method Summary collapse

Constructor Details

#initialize(template_dir, template_name, links, mapping = {}) ⇒ ErbHtml

Returns a new instance of ErbHtml.



8
9
10
11
12
13
14
15
16
 
# File 'lib/html.rb', line 8

def initialize template_dir, template_name, links, mapping={}
  @template_name = template_name
  @template_dir = template_dir
  @links = links
  @mapping = mapping

  @@erbs ||= {}
  @@erbs[template_name] ||= ERB.new(IO.readlines(File.join(template_dir, "#{template_name}.rhtml")).join)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *a) ⇒ Object 



32
33
34
 
# File 'lib/html.rb', line 32

def method_missing meth, *a
  @mapping.member?(meth) ? @mapping[meth] : super
end

Instance Method Details

#h(o) ⇒ Object 



18
 
# File 'lib/html.rb', line 18

def h o; o.to_s.gsub("&", "&amp;").gsub("<", "&lt;").gsub(">", "&gt;") end

#link_to(o, name) ⇒ Object

Raises:

  • (ArgumentError) 


21
22
23
24
25
26
 
# File 'lib/html.rb', line 21

def link_to o, name
  dest = @links[o]
  dest = o if dest.nil? && o.is_a?(String)
  raise ArgumentError, "no link for #{o.inspect}" unless dest
  "<a href=\"#{dest}\">#{name}</a>"
end

#obscured_email(e) ⇒ Object 



20
 
# File 'lib/html.rb', line 20

def obscured_email e; h e.gsub(/@.*?(>|$)/, "@...\\1") end

#p(o) ⇒ Object 



19
 
# File 'lib/html.rb', line 19

def p o; "<p>" + h(o.to_s).gsub("\n\n", "</p><p>") + "</p>" end

#render(template_name, morevars = {}) ⇒ Object 



28
29
30
 
# File 'lib/html.rb', line 28

def render template_name, morevars={}
  ErbHtml.new(@template_dir, template_name, @links, @mapping.merge(morevars)).to_s
end

#to_s ⇒ Object 



36
37
38
 
# File 'lib/html.rb', line 36

def to_s
  @@erbs[@template_name].result binding
end