Class: UriTemplate::Var

Inherits:
Object
  • Object
show all
Defined in:
lib/uri_template.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(exp, tree) ⇒ Var

Returns a new instance of Var.



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# File 'lib/uri_template.rb', line 93

def initialize(exp, tree)
  @exp, @tree = exp, tree
end

Instance Attribute Details

#exp ⇒ Object (readonly)

Returns the value of attribute exp.



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# File 'lib/uri_template.rb', line 91

def exp
  @exp
end

Instance Method Details

#value(params) ⇒ Object

Algorithm taken directly from the spec. TODO: refactor to be Ruby-like



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# File 'lib/uri_template.rb', line 99

def value(params)
  value = params[name] || params[name.to_sym]

  out = ""
  case value
  when nil
    return nil
  when String
    if exp.named?
      out << "#{encode(name)}#{value.empty? ? exp.str_if_empty : "="}"
    end
    out << encode(trim(value))

  when Array
    if !explode?
      if exp.named?
        out << "#{encode(name)}#{value.empty? ? exp.str_if_empty : "="}"
      end
      return if value.empty?
      out << value.map{|v| encode(v)}.join(",")
    else
      return if value.empty?
      out << value.map{|v| encode(v)}.join(exp.separator)
    end

  when Hash
    if !explode?
      if exp.named?
        out << "#{encode(name)}#{value.empty? ? exp.str_if_empty : "="}"
      end
      return if value.empty?
      out << value.map{|k,v| [encode(k), encode(v)]}.flatten.join(",")
    else
      return if value.empty?
      out << value.map{|k,v| "#{encode(k)}=#{encode(v)}"}.join(exp.separator)
    end

  end

  out
end