Module: CaseTransform

Defined in:
lib/case_transform.rb,
lib/case_transform/version.rb,
lib/case_transform/hash_ext.rb,
lib/case_transform/string_ext.rb

Defined Under Namespace

Classes: HashExt, StringExt

Constant Summary collapse

VERSION = 
'0.2'.freeze

Class Method Summary collapse

Class Method Details

.camel(value) ⇒ Object

Transforms values to UpperCamelCase or PascalCase.

@example:

"some_key" => "SomeKey",



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# File 'lib/case_transform.rb', line 28

def camel(value)
  case value
  when Array
    value.map { |item| camel(item) }
  when Hash
    hash_ext.deep_transform_keys!(value) { |key| camel(key) }
  when Symbol
    camel(value.to_s).to_sym
  when String
    camel_cache[value] ||= string_ext.camelize(string_ext.underscore(value))
  else
    value
  end
end

.camel_cache ⇒ Object 



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# File 'lib/case_transform.rb', line 8

def camel_cache
  @camel_cache ||= {}
end

.camel_lower(value) ⇒ Object

Transforms values to camelCase.

@example:

"some_key" => "someKey",



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# File 'lib/case_transform.rb', line 47

def camel_lower(value)
  case value
  when Array
    value.map { |item| camel_lower(item) }
  when Hash
    hash_ext.deep_transform_keys!(value) { |key| camel_lower(key) }
  when Symbol
    camel_lower(value.to_s).to_sym
  when String
    camel_lower_cache[value] ||= string_ext.camelize(string_ext.underscore(value), :lower)
  else
    value
  end
end

.camel_lower_cache ⇒ Object 



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# File 'lib/case_transform.rb', line 12

def camel_lower_cache
  @camel_lower_cache ||= {}
end

.dash(value) ⇒ Object

Transforms values to dashed-case. This is the default case for the JsonApi adapter.

@example:

"some_key" => "some-key",



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# File 'lib/case_transform.rb', line 67

def dash(value)
  case value
  when Array
    value.map { |item| dash(item) }
  when Hash
    hash_ext.deep_transform_keys!(value) { |key| dash(key) }
  when Symbol
    dash(value.to_s).to_sym
  when String
    dash_cache[value] ||= string_ext.dasherize(string_ext.underscore(value))
  else
    value
  end
end

.dash_cache ⇒ Object 



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# File 'lib/case_transform.rb', line 16

def dash_cache
  @dash_cache ||= {}
end

.underscore(value) ⇒ Object

Transforms values to underscore_case. This is the default case for deserialization in the JsonApi adapter.

@example:

"some-key" => "some_key",



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# File 'lib/case_transform.rb', line 87

def underscore(value)
  case value
  when Array
    value.map { |item| underscore(item) }
  when Hash
    hash_ext.deep_transform_keys!(value) { |key| underscore(key) }
  when Symbol
    underscore(value.to_s).to_sym
  when String
    underscore_cache[value] ||= string_ext.underscore(value)
  else
    value
  end
end

.underscore_cache ⇒ Object 



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# File 'lib/case_transform.rb', line 20

def underscore_cache
  @underscore_cache ||= {}
end