Module: LexoRanker::RankableMethods::Adapters::Sequel::ClassMethods

Defined in:
lib/lexoranker/rankable_methods/adapters/sequel.rb

Instance Method Summary collapse

Instance Method Details

#create_ranked(attributes, position: nil, &block) ⇒ Object 



29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/lexoranker/rankable_methods/adapters/sequel.rb', line 29

def create_ranked(attributes, position: nil, &block)
  position = case position
  when :top, :bottom
    [:"move_to_#{position}"]
  when Integer
    [:move_to, position]
  else
    [:"move_to_#{rankable_default_insert_pos}"]
  end
  instance = new(attributes, &block)
  instance.send(*position)
  instance.save
  instance
end

#ranks_around_position(id, position, scope_value: nil) ⇒ Object 



44
45
46
47
48
 
# File 'lib/lexoranker/rankable_methods/adapters/sequel.rb', line 44

def ranks_around_position(id, position, scope_value: nil)
  scope = ranked.exclude(id: id)
  scope = scope.where("#{rankable_scope}": scope_value) unless scope_value.nil?
  scope.offset(position - 1).limit(2).select(rankable_column).map(&:"#{rankable_column}")
end

#set_ranked_scope(field) ⇒ Object 



12
13
14
15
16
17
18
 
# File 'lib/lexoranker/rankable_methods/adapters/sequel.rb', line 12

def set_ranked_scope(field)
  dataset_module do
    define_method(:ranked) do |direction: :asc|
      order(::Sequel.send(direction, field)).exclude(field => nil)
    end
  end
end

#set_ranked_validations(field, scope = nil) ⇒ Object 



20
21
22
23
24
25
26
27
 
# File 'lib/lexoranker/rankable_methods/adapters/sequel.rb', line 20

def set_ranked_validations(field, scope = nil)
  args = scope.nil? ? field : [field, scope]
  plugin :validation_helpers
  define_method :validate do
    super()
    validates_unique(args)
  end
end