model_extension.rb in unidom-common-0.3

- old
+ new

@@ -70,9 +70,10 @@
 
             if 'code'==name or name.ends_with? '_code'
               class_eval do
                 if columns_hash[name].null
                   validates name.to_sym, allow_blank: true, length: { maximum: columns_hash[name].limit }
+                  scope "#{name}_length_is".to_sym, ->(length) { where "LENGTH(#{name}) = :length", length: length }
                 else
                   validates name.to_sym, presence: true, length: { is: columns_hash[name].limit }
                 end
                 scope "#{name}d_as".to_sym,     ->(code) { where     name => code }
                 scope "not_#{name}d_as".to_sym, ->(code) { where.not name => code }
\ No newline at end of file