Module: Alula::ResourceAttributes

Defined Under Namespace

Modules: InstanceMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object



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# File 'lib/alula/resource_attributes.rb', line 4

def self.extended(base)
  base.class_eval do
    @resource_path = nil
    @type = nil
    @http_methods = []
    @fields = {}
  end
  base.include(InstanceMethods)
end

Instance Method Details

#date_fieldsObject



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# File 'lib/alula/resource_attributes.rb', line 113

def date_fields
  get_fields.each_pair.each_with_object([]) do |(field_name, opts), collector|
    collector << field_name if opts[:type].to_sym == :date
  end
end

#field(field_name, **opts) ⇒ Object

Memoizes field names and options



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# File 'lib/alula/resource_attributes.rb', line 46

def field(field_name, **opts)
  @fields ||= {}
  @fields[field_name] = opts

  self.instance_eval do
    jsonKey = Util.camelize(field_name)

    # Reader method for attribute
    define_method(field_name) do
      value = @values[jsonKey]

      if opts[:type] == :date && ![nil, ''].include?(value)
        begin
          DateTime.parse(value)
        rescue ArgumentError
          value
        end
      elsif opts[:type] == :boolean
        [true, 'true', 1, '1'].include? value
      elsif opts[:symbolize] == true
        # API sends a camelCase string; provide symbol to Client
        value ? Util.underscore(value).to_sym : nil
      elsif opts[:hex_convert_required] == true
        Util.convert_hex_crc?(self.program_id) ? value.to_s(16) : value
      else
        value
      end
    end

    # Setter method
    define_method("#{field_name}=") do |new_value|
      #
      # Coerce 'blank like' fields into a defined blank value
      # This helps HTML form submissions. A blank text field comes through as an
      # empty string, instead of a nil as the API validates for.
      new_value = nil if new_value == ''

      if opts[:symbolize] == true
        # Client provides a symbol; send camelCase string to API
        new_value = Util.camelize(new_value.to_s)
      elsif opts[:type] == :boolean
        new_value = [true, 'true', 1, '1'].include? new_value
      end

      #
      # Mark the attribute as dirty if the new value is different
      @dirty_attributes << field_name if @values[jsonKey] != new_value

      #
      # Assign the new value (always assigned even if a duplicate)
      @values[jsonKey] = new_value
    end


  end
end

#field_namesObject



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# File 'lib/alula/resource_attributes.rb', line 131

def field_names
  get_fields.keys
end

#filterable_fieldsObject



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# File 'lib/alula/resource_attributes.rb', line 119

def filterable_fields
  get_fields.each_pair.each_with_object([]) do |(field_name, opts), collector|
    collector << field_name if opts[:filterable] == true
  end
end

#get_fieldsObject



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# File 'lib/alula/resource_attributes.rb', line 103

def get_fields
  @fields
end

#get_http_methodsObject



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# File 'lib/alula/resource_attributes.rb', line 40

def get_http_methods
  @http_methods
end

#get_resource_path(id = nil) ⇒ Object



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# File 'lib/alula/resource_attributes.rb', line 23

def get_resource_path(id = nil)
  return "#{@resource_path}/#{id}" if id
  @resource_path
end

#get_typeObject



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# File 'lib/alula/resource_attributes.rb', line 32

def get_type
  @type
end

#http_methods(methods) ⇒ Object



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# File 'lib/alula/resource_attributes.rb', line 36

def http_methods(methods)
  @http_methods = methods
end

#param_keyObject



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# File 'lib/alula/resource_attributes.rb', line 135

def param_key
  self.name.gsub('::', '_').downcase
end

#read_only_attributes(record_persisted = false) ⇒ Object



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# File 'lib/alula/resource_attributes.rb', line 107

def read_only_attributes(record_persisted = false)
  get_fields.each_pair.each_with_object([]) do |(field_name, opts), collector|
    collector << field_name if !field_patchable?(opts, record_persisted)
  end
end

#resource_path(name) ⇒ Object

Class methods for defining how fields and types work NOTE: We’re not using real getters and setters here. I want the method signature

to match how most other Ruby class configuration is done, and that is with
simple methods that take params.


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# File 'lib/alula/resource_attributes.rb', line 19

def resource_path(name)
  @resource_path = name
end

#sortable_fieldsObject



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# File 'lib/alula/resource_attributes.rb', line 125

def sortable_fields
  get_fields.each_pair.each_with_object([]) do |(field_name, opts), collector|
    collector << field_name if opts[:sortable] == true
  end
end

#type(type) ⇒ Object



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# File 'lib/alula/resource_attributes.rb', line 28

def type(type)
  @type = type
end