Class: Haml::Buffer

Inherits:
Object
  • Object
show all
Defined in:
lib/green_monkey/ext/haml.rb

Overview

this hack looks at active-record object’s :html_schema_type field and adds itemscope, itemid and itemtype to element example:

%article

> <article class=“post” itemscope itemtype=“schema.org/BlogPosting” itemid=“1”>

%section

> <section itemscope itemtype=“schema.org/Blog”>

%section[Mida(:Blog), :sexjokes]

> <section itemscope itemtype=“schema.org/Blog/SexJokes”>

according to “Extension Mechanism” at schema.org/docs/extension.html

%span Hello

> <span itemprop=“title”>Hello</span>

Instance Method Summary collapse

Instance Method Details

#parse_object_ref(ref) ⇒ Object

this methods calls then you pass %tag[object1, object2] ref argument is array



24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/green_monkey/ext/haml.rb', line 24

def parse_object_ref(ref)
  options = {}
  ref.each do |obj|
    next if obj == "local-variable"
    if self.class.respond_to?(:merge_attrs)
      self.class.merge_attrs(options, process_object_ref(obj))
    else
      Haml::AttributeBuilder.merge_attributes!(options, process_object_ref(obj))
    end
  end
  options
end

#process_object_ref(obj) ⇒ Object 



37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/green_monkey/ext/haml.rb', line 37

def process_object_ref(obj)
  return {} if !obj

  if obj.is_a?(Symbol)
    # symbol => "itemprop" attribute
    return {'itemprop' => obj.to_s}
  elsif obj.kind_of?(Mida::Vocabulary)
    # Mida::Vocabulary => itemprop and itemtype
    return {'itemscope' => true, 'itemtype' => obj.itemtype.source}
  elsif obj.is_a?(String)
    return {'class' => obj}
  else
    options = {}
    options['class'] = obj.respond_to?(:haml_object_ref) ? obj.haml_object_ref : underscore(obj.class)
    options['id'] = "#{options['class']}_#{obj.id || 'new'}" if obj.respond_to?(:id)

    # my hack for microdata attributes
    if obj.respond_to?(:html_schema_type)
      options['itemscope'] = true
      options['itemid'] = obj.has_attribute?(:slug) ? obj.slug : obj.id

      if obj.html_schema_type.kind_of?(Mida::Vocabulary)
        options['itemtype'] = obj.html_schema_type.itemtype.source
      else
        #raise "No vocabulary found (#{obj.html_schema_type})" unless Mida::Vocabulary.find(obj.html_schema_type)
        options['itemtype'] = obj.html_schema_type
      end
    end

    return options
  end
end