如果使用定期表述,我将如何确定一个日期,以确保该日期仅以这种格式输入: 毫米/d/yyyyy?
如果任何人感兴趣,则使用<代码>validates_format_of :date_field, :with => / 列入“鲁比”模式。
@hsz answer is correct. Should you need to also validate the date itself you can use this :
/^(?:0?[1-9]|1[0-2])/(?:0?[1-9]|[1-2]d|3[01])/d{4}$/
Edit :
@Tim说,这不是100%的监管机构。 参看他与此相关的答案。
if subject =~ /A(?:0?[1-9]|1[0-2])/(?:0?[1-9]|[1-2]d|3[01])/d{4}/
# Successful match
Edit #2 : Ruby specific version above.
对这一格式的审核可考虑:
^d{2}/d{2}/d{4}$
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