Class: PureForm::Base

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Model
Defined in:
lib/pure_form/base.rb

Defined Under Namespace

Classes: Boolean

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = nil) ⇒ Base

Returns a new instance of Base.



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# File 'lib/pure_form/base.rb', line 62

def initialize(attributes=nil)
  assign_defaults
  assign_attributes attributes if attributes
end

Class Method Details

.attribute(name, **options) ⇒ Object 



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# File 'lib/pure_form/base.rb', line 16

def attribute(name, **options)
  attribute = Attribute.new(self, name, options)
  self.defined_attributes ||= HashWithIndifferentAccess.new
  self.defined_attributes = defined_attributes.merge(attribute.name => attribute)
  attribute.define
end

.copy_attributes_from(model, **options) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/pure_form/base.rb', line 34

def copy_attributes_from(model, **options)
  raise ArgumentError unless model < ActiveRecord::Base

  included = Array.wrap(options.fetch(:only){ model.column_names }).map(&:to_s)
  excluded = Array.wrap(options[:except]).map(&:to_s)

  model.columns.each do |column|
    next if !column.name.in?(included) || column.name.in?(excluded)
    attribute column.name, type: column.type
  end
end

.default_values ⇒ Object 



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# File 'lib/pure_form/base.rb', line 46

def default_values
  return {} unless defined_attributes
  @default_values ||= defined_attributes.each_with_object({}) do |(name, attribute), defaults|
    if attribute.options.key?(:default)
      defaults[name] = attribute.options.fetch(:default)
    end
  end
end

.form_name(name) ⇒ Object 



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# File 'lib/pure_form/base.rb', line 27

def form_name(name)
  new_name = build_model_name(name)
  singleton_class.instance_eval do
    define_method(:model_name){ new_name }
  end
end

.model_name ⇒ Object 



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# File 'lib/pure_form/base.rb', line 23

def model_name
  @model_name ||= build_model_name(to_s.remove(/^(\w+::)+/).remove(/Form$/))
end

Instance Method Details

#assign_attributes(attributes) ⇒ Object Also known as: attributes= 



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# File 'lib/pure_form/base.rb', line 67

def assign_attributes(attributes)
  Assignment.new(self, attributes).perform
end

#assign_defined_attributes(attributes) ⇒ Object 



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# File 'lib/pure_form/base.rb', line 71

def assign_defined_attributes(attributes)
  Assignment.new(self, attributes, ignore_undefined: true).perform
end

#attributes ⇒ Object 



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# File 'lib/pure_form/base.rb', line 77

def attributes
  self.class.defined_attributes.each_with_object({}) do |(name, _), attributes|
    attributes[name] = public_send(name)
  end.with_indifferent_access
end

#update(updates) ⇒ Object 



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# File 'lib/pure_form/base.rb', line 83

def update(updates)
  assign_attributes updates
  valid?
end