Module: Exegesis::Design::DesignDocs::ClassMethods

Defined in:
lib/exegesis/design/design_docs.rb

Instance Method Summary collapse

Instance Method Details

#declared_views ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 40

def declared_views
  @declared_views ||= {}
end

#design_doc ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 25

def design_doc
  js_doc = Johnson.evaluate("v = #{File.read(design_doc_path)}");
  views = js_doc['views'].entries.inject({}) do |memo, (name, mapreduce)|
    memo[name] = mapreduce.entries.inject({}) do |view, (role, func)|
      view.update role => func.toString
    end
    memo
  end
  composite_views = declared_views.dup.update(views)
  { '_id' => "_design/#{design_doc_name}",
    'language' => 'javascript',
    'views' => composite_views
  }
end

#design_doc_hash ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 59

def design_doc_hash
  hash_for_design design_doc
end

#design_doc_path ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 21

def design_doc_path
  designs_directory + "#{design_doc_name}.js"
end

#designs_directory(dir = nil) ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 13

def designs_directory dir=nil
  if dir
    @designs_directory = Pathname.new(dir)
  else
    @designs_directory || Exegesis.designs_directory
  end
end

#hash_for_design(design) ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 63

def hash_for_design design
  funcs = design['views'].map do |name, view|
    "//view/#{name}/#{view['map']}/#{view['reduce']}"
  end
  Digest::MD5.hexdigest(funcs.sort.join)
end

#view_by(*keys) ⇒ Object 



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# File 'lib/exegesis/design/design_docs.rb', line 44

def view_by *keys
  view_name = "by_#{keys.join('_and_')}"
  doc_keys = keys.map {|k| "doc['#{k}']" }
  declared_views[view_name] = {
    'map' => %|function(doc) {
      if (doc['.kind'] == '#{name.sub(/Design$/,'')}' && #{doc_keys.join(' && ')}) {
        emit(#{keys.length == 1 ? doc_keys.first : "[#{doc_keys.join(', ')}]" }, null);
      }
    }|
  }
  define_method view_name do |*args|
    docs_for view_name, *args
  end
end