Module: NoBrainer::Criteria::OrderBy

Extended by:
ActiveSupport::Concern
Defined in:
lib/no_brainer/criteria/order_by.rb

Defined Under Namespace

Classes: IndexFinder

Instance Method Summary collapse

Instance Method Details

#order_by(*rules, &block) ⇒ Object Also known as: order 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/no_brainer/criteria/order_by.rb', line 8

def order_by(*rules, &block)
  # Note: We are relying on the fact that Hashes are ordered (since 1.9)
  rules = [*rules, block].flatten.compact.map do |rule|
    case rule
    when Hash then
      bad_rule = rule.values.reject { |v| v.in? [:asc, :desc] }.first
      raise_bad_rule(bad_rule) if bad_rule
      rule
    when String, Symbol, Proc then { rule => :asc }
    else raise_bad_rule(rule)
    end
  end.reduce({}, :merge)

  rules.keys.each { |k| model.ensure_valid_key!(k) unless k.is_a?(Proc) } if model

  chain(:order_by => rules, :ordering_mode => :explicit,
                            :reversed_ordering => false)
end

#order_by_index_name ⇒ Object 



41
42
43
 
# File 'lib/no_brainer/criteria/order_by.rb', line 41

def order_by_index_name
  order_by_index_finder.index_name
end

#order_by_indexed? ⇒ Boolean

Returns:



37
38
39
 
# File 'lib/no_brainer/criteria/order_by.rb', line 37

def order_by_indexed?
  !!order_by_index_name
end

#reverse_order ⇒ Object 



33
34
35
 
# File 'lib/no_brainer/criteria/order_by.rb', line 33

def reverse_order
  chain(:reversed_ordering => !@options[:reversed_ordering])
end

#without_ordering ⇒ Object 



29
30
31
 
# File 'lib/no_brainer/criteria/order_by.rb', line 29

def without_ordering
  chain(:ordering_mode => :disabled)
end