Class: SemiOpenStruct

Inherits:
OpenStruct
  • Object
show all
Defined in:
lib/easyconf-rails.rb

Overview

SemiOpenStruct is like OpenStruct, except that accessing an uninitialized key will raise a KeyError.

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(key, *val) ⇒ Object 



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# File 'lib/easyconf-rails.rb', line 42

def method_missing(key, *val)
	if key.to_s.end_with?('=') and (val.length == 1)
		super(key, val.first)
	else
		raise(NameError, "undefined method `#{key}' for #{self}")
	end
end

Instance Method Details

#[](key) ⇒ Object

Return the value corresponding to key.to_sym, or raise KeyError if no such value exists.



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# File 'lib/easyconf-rails.rb', line 8

def [](key)
	@table.fetch(key.to_sym)
end

#[]=(key, val) ⇒ Object

Set key.to_sym to val.



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# File 'lib/easyconf-rails.rb', line 13

def []=(key, val)
	@table[key.to_sym] = val
end

#delete_field(key) ⇒ Object 



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# File 'lib/easyconf-rails.rb', line 27

def delete_field(key)
	if @table.has_key?(key.to_sym)
		@table.delete(key.to_sym)
	else
		raise(NameError, "method `#{key}` not defined in #{self.class}")
	end
end

#each ⇒ Object

Call the given block for every key and value we have.



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# File 'lib/easyconf-rails.rb', line 36

def each # :yields: key, val
	@table.each do |key, val|
		yield(key, val)
	end
end

#has_key?(key) ⇒ Boolean

Return true if the given key is present.

Returns:

  • (Boolean) 


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# File 'lib/easyconf-rails.rb', line 18

def has_key?(key)
	singleton_methods.grep(/[^=]$/).include?(key)
end

#keys ⇒ Object

Return a new array populated with our keys.



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# File 'lib/easyconf-rails.rb', line 23

def keys
	@table.keys
end