Class: Mobility::Backends::ActiveRecord::QueryMethods

Inherits:
Module
  • Object
show all
Defined in:
lib/mobility/backends/active_record/query_methods.rb

Overview

Defines query method overrides to handle translated attributes for ActiveRecord models. For details see backend-specific subclasses.

Instance Method Summary collapse

Constructor Details

#initialize(attributes, _) ⇒ QueryMethods

Returns a new instance of QueryMethods.

Parameters:

  • attributes (Array<String>) —

    Translated attributes



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# File 'lib/mobility/backends/active_record/query_methods.rb', line 12

def initialize(attributes, _)
  @attributes = attributes
  @attributes_extractor = lambda do |opts|
    opts.is_a?(Hash) && (opts.keys.map(&:to_s) & attributes).presence
  end
end

Instance Method Details

#extended(relation) ⇒ Object

Note:

Only want to define this once, even if multiple QueryMethods modules are included, so define it here in extended method

Parameters:

  • relation (ActiveRecord::Relation) —

    Relation being extended



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# File 'lib/mobility/backends/active_record/query_methods.rb', line 22

def extended(relation)
  unless relation.methods(false).include?(:mobility_where_chain)
    relation.define_singleton_method(:mobility_where_chain) do
      @mobility_where_chain ||= Class.new(::ActiveRecord::QueryMethods::WhereChain)
    end

    relation.define_singleton_method :where do |opts = :chain, *rest|
      opts == :chain ? mobility_where_chain.new(spawn) : super(opts, *rest)
    end
  end
end