Class: Para::AttributeFieldMappings

Inherits:
Object
  • Object
show all
Defined in:
lib/para/attribute_field_mappings.rb

Constant Summary collapse

UNEDITABLE_ATTRIBUTES = 
%w(id component_id created_at updated_at type)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model, whitelist_attributes: nil) ⇒ AttributeFieldMappings

Returns a new instance of AttributeFieldMappings.



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# File 'lib/para/attribute_field_mappings.rb', line 7

def initialize(model, whitelist_attributes: nil)
  @model = model
  @whitelist_attributes = whitelist_attributes

  process_fields!
end

Instance Attribute Details

#fields_hash ⇒ Object (readonly)

Returns the value of attribute fields_hash.



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# File 'lib/para/attribute_field_mappings.rb', line 5

def fields_hash
  @fields_hash
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



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# File 'lib/para/attribute_field_mappings.rb', line 5

def model
  @model
end

#whitelist_attributes ⇒ Object (readonly)

Returns the value of attribute whitelist_attributes.



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# File 'lib/para/attribute_field_mappings.rb', line 5

def whitelist_attributes
  @whitelist_attributes
end

Instance Method Details

#field_for(field_name, type = nil) ⇒ Object 



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# File 'lib/para/attribute_field_mappings.rb', line 18

def field_for(field_name, type = nil)
  existing_field = fields_hash[field_name]

  if !existing_field || (type && !existing_field.type?(type))
    fields_hash[field_name] = if model.new.respond_to?(field_name)
      build_field_for(field_name, type)
    else
      raise NoMethodError.new(
        "No attribute or method correspond to ##{ field_name } " +
        "in the model #{ model.name }. No field could be created."
      )
    end
  else
    existing_field
  end
end

#fields ⇒ Object 



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# File 'lib/para/attribute_field_mappings.rb', line 14

def fields
  fields_hash.values
end