Merge pull request #332 from braktar/requires-entity

Partition entity is mandatory

api/v01/entities/vrp_input.rb

@@ -144,7 +144,7 @@ module VrpConfiguration
   params :vrp_request_partition do
     requires(:method, type: String, values: %w[hierarchical_tree balanced_kmeans], desc: 'Method used to partition')
     optional(:metric, type: Symbol, desc: 'Defines partition reference metric. Values should be either duration, visits or any unit you defined in units.')
-    optional(:entity, type: Symbol, values: [:vehicle, :work_day], desc: 'Describes what the partition corresponds to. Available only if method in [balanced_kmeans hierarchical_tree].', coerce_with: ->(value) { value.to_sym })
+    requires(:entity, type: Symbol, values: [:vehicle, :work_day], desc: 'Describes what the partition corresponds to. Available only if method in [balanced_kmeans hierarchical_tree].', coerce_with: ->(value) { value.to_sym })
     optional(:threshold, type: Integer, desc: 'Maximum size of partition. Available only if method in [iterative_kmean clique].')
   end