Class: Domain::Model

Inherits:
Object
  • Object
show all
Defined in:
lib/domain/model.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ Model

Returns a new instance of Model.



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# File 'lib/domain/model.rb', line 7

def initialize(attributes = {})
  attributes.each do |k, v|
    key = "#{k}="
    send(key, v) if respond_to?(key)
  end
end

Class Method Details

.columns ⇒ Object

Ensure the columns method retrieves only valid attribute names



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# File 'lib/domain/model.rb', line 31

def self.columns
  instance_methods.select { |m| m.to_s.end_with?('=') }
                  .map { |setter| setter.to_s.chomp('=') }
                  .select { |attr| instance_methods.include?(attr.to_sym) && !Object.instance_methods.include?(attr.to_sym) }
                  .sort
end

.from_json(data) ⇒ Object 



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# File 'lib/domain/model.rb', line 46

def self.from_json(data)
  new(data.transform_keys(&:to_sym)) # Transform keys from string to symbols if necessary
end

.headers ⇒ Object 



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# File 'lib/domain/model.rb', line 38

def self.headers
  columns.join ','
end

.primary_key ⇒ Object 



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# File 'lib/domain/model.rb', line 26

def self.primary_key
  ['id']
end

.table_name ⇒ Object 



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# File 'lib/domain/model.rb', line 42

def self.table_name
  name.underscore
end

Instance Method Details

#to_csv ⇒ Object 



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# File 'lib/domain/model.rb', line 21

def to_csv
  self.class.columns
      .map { |column| send(column.to_sym) }
end

#to_hash ⇒ Object

Convert instance attributes to a hash



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# File 'lib/domain/model.rb', line 15

def to_hash
  self.class.columns.each_with_object({}) do |attr, hash|
    hash[attr] = send(attr.to_sym)
  end
end

#to_s ⇒ Object 



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# File 'lib/domain/model.rb', line 50

def to_s
  self.class.columns.map { |attr| send(attr) }.join(',')
end