Class: Reins::Parameters

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

Instance Method Summary collapse

Constructor Details

#initialize(hash = {}) ⇒ Parameters

Returns a new instance of Parameters.



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# File 'lib/reins/parameters.rb', line 5

def initialize(hash = {})
  @hash = hash.transform_keys(&:to_s)
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/reins/parameters.rb', line 21

def [](key)
  wrap(@hash[key.to_s])
end

#[]=(key, value) ⇒ Object 



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# File 'lib/reins/parameters.rb', line 25

def []=(key, value)
  @hash[key.to_s] = value
end

#each ⇒ Object 



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# File 'lib/reins/parameters.rb', line 41

def each(&) = @hash.each(&)

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reins/parameters.rb', line 42

def empty? = @hash.empty?

#key?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reins/parameters.rb', line 39

def key?(key) = @hash.key?(key.to_s)

#keys ⇒ Object 



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# File 'lib/reins/parameters.rb', line 40

def keys = @hash.keys

#merge(other) ⇒ Object 



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# File 'lib/reins/parameters.rb', line 29

def merge(other)
  other_hash = other.respond_to?(:to_h) ? other.to_h : other
  Parameters.new(@hash.merge(other_hash.transform_keys(&:to_s)))
end

#permit(*keys) ⇒ Object 



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# File 'lib/reins/parameters.rb', line 16

def permit(*keys)
  allowed = keys.map(&:to_s)
  Parameters.new(@hash.slice(*allowed))
end

#require(key) ⇒ Object

Raises:



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# File 'lib/reins/parameters.rb', line 9

def require(key)
  value = @hash[key.to_s]
  raise ParameterMissing, "param is missing or the value is empty: #{key}" if blank?(value)

  wrap(value)
end

#to_h ⇒ Object Also known as: to_hash 



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# File 'lib/reins/parameters.rb', line 34

def to_h
  @hash.dup
end