class Erubis::Context

context object for Engine#evaluate

ex.

template = <<'END'
Hello <%= @user %>!
<% for item in @list %>
 - <%= item %>
<% end %>
END

context = Erubis::Context.new(:user=>'World', :list=>['a','b','c'])
# or
# context = Erubis::Context.new
# context[:user] = 'World'
# context[:list] = ['a', 'b', 'c']

eruby = Erubis::Eruby.new(template)
print eruby.evaluate(context)

Public Class Methods

new(hash=nil) click to toggle source
# File lib/erubis/context.rb, line 33
def initialize(hash=nil)
  hash.each do |name, value|
    self[name] = value
  end if hash
end

Public Instance Methods

[](key) click to toggle source
# File lib/erubis/context.rb, line 39
def [](key)
  return instance_variable_get("@#{key}")
end
[]=(key, value) click to toggle source
# File lib/erubis/context.rb, line 43
def []=(key, value)
  return instance_variable_set("@#{key}", value)
end
each() { |key, value| ... } click to toggle source
# File lib/erubis/context.rb, line 51
def each
  instance_variables.each do |name|
    key = name[1..-1]
    value = instance_variable_get(name)
    yield(key, value)
  end
end
keys() click to toggle source
# File lib/erubis/context.rb, line 47
def keys
  return instance_variables.collect { |name| name[1..-1] }
end
to_hash() click to toggle source
# File lib/erubis/context.rb, line 59
def to_hash
  hash = {}
  self.keys.each { |key| hash[key] = self[key] }
  return hash
end
update(context_or_hash) click to toggle source
# File lib/erubis/context.rb, line 65
def update(context_or_hash)
  arg = context_or_hash
  if arg.is_a?(Hash)
    arg.each do |key, val|
      self[key] = val
    end
  else
    arg.instance_variables.each do |varname|
      key = varname[1..-1]
      val = arg.instance_variable_get(varname)
      self[key] = val
    end
  end
end