instance method
check_if_method_has_arguments!
Ruby on Rails 6.1.7.10
Since v4.0.13 Private — implementation detail, not part of the public APISignature
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_namereq -
argsreq -
messageopt = 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
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Defined in ActiveRecord::QueryMethods