Method: Praxis::Extensions::AttributeFiltering::ActiveRecordFilterQueryBuilder.valid_path?

Defined in:
lib/praxis/extensions/attribute_filtering/active_record_filter_query_builder.rb

.valid_path?(model, path) ⇒ Boolean

not in filters.…checks if it’s a valid path array of strings

Returns:

  • (Boolean) 


126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
 
# File 'lib/praxis/extensions/attribute_filtering/active_record_filter_query_builder.rb', line 126

def self.valid_path?(model, path)
  first_component, *rest = path
  if model.attribute_names.include?(first_component)
    true
  elsif model.reflections.keys.include?(first_component)
    if rest.empty?
      true # Allow associations as a leaf too (as they can have the ! and !! operator)
    else # Follow the association
      nested_model = model.reflections[first_component].klass
      valid_path?(nested_model, rest)
    end
  else
    false
  end
end