instance method `check_if_method_has_arguments!`

Ruby on Rails 6.1.7.10

Since v4.0.13 Private

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

check_if_method_has_arguments!(method_name, args, message = nil)

Checks to make sure that the arguments are not blank. Note that if some blank-like object were initially passed into the query method, then this method will not raise an error.

Example:

Post.references()   # raises an error
Post.references([]) # does not raise an error

This particular method should be called with a method_name and the args passed into that method as an input. For example:

def references(*args)

check_if_method_has_arguments!("references", args)
...

end

Parameters

method_name req
args req
message opt = nil

Source

# File activerecord/lib/active_record/relation/query_methods.rb, line 1488
      def check_if_method_has_arguments!(method_name, args, message = nil)
        if args.blank?
          raise ArgumentError, message || "The method .#{method_name}() must contain arguments."
        elsif block_given?
          yield args
        else
          args.flatten!
          args.compact_blank!
        end
      end

Defined in activerecord/lib/active_record/relation/query_methods.rb line 1488 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::QueryMethods

Signature

Parameters