class ActiveRecord::DynamicMatchers::Method

# File lib/active_record/dynamic_matchers.rb, line 38
          def define(model, name)
            model.class_eval <<-CODE, __FILE__, __LINE__ + 1
            def self.#{name}(#{signature(model, name)})
              #{body(model, name)}
            end
            CODE
          end

# File lib/active_record/dynamic_matchers.rb, line 30
def match(name)
  FindBy.match?(name) || FindByBang.match?(name)
end

# File lib/active_record/dynamic_matchers.rb, line 34
def valid?(model, name)
  attribute_names(model, name.to_s).all? { |name| model.columns_hash[name] || model.reflect_on_aggregation(name.to_sym) }
end

# File lib/active_record/dynamic_matchers.rb, line 51
def attribute_names(model, name)
  attribute_names = name.match(pattern)[1].split("_and_")
  attribute_names.map! { |name| model.attribute_aliases[name] || name }
end

# File lib/active_record/dynamic_matchers.rb, line 68
def attributes_hash(model, method_name)
  "{" + attribute_names(model, method_name).map { |name| ":#{name} => _#{name}" }.join(",") + "}"
end

# File lib/active_record/dynamic_matchers.rb, line 56
def body(model, method_name)
  "#{finder}(#{attributes_hash(model, method_name)})"
end

# File lib/active_record/dynamic_matchers.rb, line 47
def make_pattern(prefix, suffix)
  /\A#{prefix}_([_a-zA-Z]\w*)#{suffix}\Z/
end

# File lib/active_record/dynamic_matchers.rb, line 62
def signature(model, method_name)
  attribute_names(model, method_name.to_s).map { |name| "_#{name}" }.join(", ")
end