Module: Decidim::Core::NeedsApiFilterAndOrder

Included in:
CategoryList, ComponentList, ComponentListBase, ParticipatorySpaceListBase, UserEntityList
Defined in:
lib/decidim/api/functions/needs_api_filter_and_order.rb

Instance Method Summary collapse

Instance Method Details

#add_filter_keys(filter_input) ⇒ Object

Converts the result of a GraphQL::Schema::InputObject into ActiverRecord where argument Each value InputObject can return 4 types of values:

  1. A Scalar, will filter by a simple match (==) with the default field name

  2. A Hash, then the field name will be ignored and the key from the hash used for filtering

  3. A Proc, the input can use it to construct complex queries by using the Arel_tables syntax.

    The Proc will receive the model class and the locale as arguments

  4. An Array with entries of the 3 first types. Each entry will generate an ActiveRecord where clause



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/decidim/api/functions/needs_api_filter_and_order.rb', line 13

def add_filter_keys(filter_input)
  return unless filter_input.respond_to? :each

  filter_input.each do |key, filters|
    Array.wrap(filters).each do |params|
      next if key.to_sym == :locale

      @query = if params.respond_to? :call
                 @query.where(params.call(@model_class, filter_input[:locale]))
               elsif params.is_a? Hash
                 @query.where(params)
               else
                 @query.where(@model_class.arel_table[key].eq(params))
               end
    end
  end
end

#add_order_keys(order_input) ⇒ Object

Converts the result of a GraphQL::Schema::InputObject into ActiverRecord order argument Each value of InputObject can return 3 types of values:

  1. A Scalar, will order using the default field name

  2. A Hash, the the field name will be ignored and the key from the hash used for ordering

  3. A Proc, the input can use it to construct queries using Arel

    The Proc will receive the locale as argument



37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/decidim/api/functions/needs_api_filter_and_order.rb', line 37

def add_order_keys(order_input)
  order_input.map do |key, value|
    next if key.to_sym == :locale

    @query = if value.respond_to? :call
               @query.order(value.call(order_input[:locale]))
             elsif value.is_a? Hash
               @query.order(value)
             else
               @query.order(key => value)
             end
  end
end