Module: Uniqable::ClassMethods

Defined in:
lib/uniqable.rb

Overview

Methods going to be AR model’s methods

Instance Method Summary collapse

Instance Method Details

#find_uniqable(uid) ⇒ self

Find record by one of the uniq field usage @example:

uniqable :uid, :slug
...
MyModel.find_uniqable params[:uid] # can be uid or slug column

Returns:

  • (self) 


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# File 'lib/uniqable.rb', line 49

def find_uniqable(uid)
  where_uniqable(uid).take
end

#find_uniqable!(uid) ⇒ self

Same as method above just raise exception if nothing is there

Returns:

  • (self) 


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# File 'lib/uniqable.rb', line 55

def find_uniqable!(uid)
  where_uniqable(uid).take!
end

#uniqable(*fields, to_param: nil) ⇒ Object

Uniqable fields and options declaration @example:

uniqable :uid, :slug, to_param: :uid

rubocop:disable Metrics/MethodLength



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# File 'lib/uniqable.rb', line 18

def uniqable(*fields, to_param: nil)
  fields = [:uid] if fields.blank?
  fields.each do |name|
    before_create { |record| record.uniqable_uid(name) }
  end
  define_singleton_method :uniqable_fields do
    fields
  end

  return if to_param.blank? # :to_param option

  define_method :to_param do
    public_send(to_param)
  end
end

#where_uniqable(uid) ⇒ self

Returns:

  • (self) 


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# File 'lib/uniqable.rb', line 36

def where_uniqable(uid)
  where_sql = key_uid?(uid) ?
                  uniqable_fields.map { |r| "#{table_name}.#{r} = :uid" }.join(' OR ') :
                  "#{table_name}.#{primary_key} = :uid"
  where(where_sql, uid: uid)
end