Class: Para::Inputs::MultiSelectInput

Inherits:
SimpleForm::Inputs::Base
  • Object
show all
Includes:
Helpers::ResourceName
Defined in:
lib/para/inputs/multi_select_input.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helpers::ResourceName

#resource_name

Instance Attribute Details

#resource ⇒ Object (readonly)

Returns the value of attribute resource.



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# File 'lib/para/inputs/multi_select_input.rb', line 6

def resource
  @resource
end

Instance Method Details

#attribute_field ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 53

def attribute_field
  @attribute_field ||= AttributeField::HasManyField.new(object.class, name: attribute_name)
end

#foreign_key ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 49

def foreign_key
  :"#{ reflection.name.to_s.singularize }_ids"
end

#input(wrapper_options = nil) ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 8

def input(wrapper_options = nil)
  input_html_options[:class] << "multi-select"

  # Load existing resources
  resources = object.send(attribute_name)
  # Order them if the list should be orderable
  resources = resources.sort_by(&method(:resource_position)) if orderable?

  template.render(
    partial: 'para/inputs/multi_select',
    locals: {
      form: @builder,
      model: model,
      attribute_name: foreign_key,
      orderable: orderable?,
      resources: resources,
      option_resources: option_resources
    }
  )
end

#join_resources ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 85

def join_resources
  @join_resources ||= orderable_association.load_target
end

#model ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 41

def model
  @model ||= reflection.klass
end

#option_resources ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 29

def option_resources
  @option_resources ||= if model.orderable?
    model.ordered
  else
    model.all.sort_by { |resource| resource_name(resource) }
  end
end

#orderable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/para/inputs/multi_select_input.rb', line 57

def orderable?
  @orderable ||= options.fetch(:orderable) do
    if attribute_field.through_reflection
      attribute_field.through_reflection.klass.orderable?
    else
      model.orderable?
    end
  end
end

#orderable_association ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 77

def orderable_association
  @orderable_association ||= if attribute_field.through_reflection
    object.association(attribute_field.through_reflection.name)
  else
    object.association(attribute_name)
  end
end

#parent_model ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 37

def parent_model
  @parent_model ||= @builder.object.class
end

#reflection ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 45

def reflection
  @reflection ||= parent_model.reflect_on_association(attribute_name)
end

#resource_position(resource) ⇒ Object 



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# File 'lib/para/inputs/multi_select_input.rb', line 67

def resource_position(resource)
  if attribute_field.through_reflection
    resource = join_resources.find do |res|
      res.send(attribute_field.through_relation_source_foreign_key) == resource.id
    end
  end

  resource.position
end