Created
July 26, 2016 11:39
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rails 查询字段是否为验证字段
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# 查询字段是否为验证字段,如果是验证字段返回 false 不是 返回 true | |
def is_presence poi, field | |
presence_fields = poi.constantize.validators.map do | v | | |
if v.is_a? ActiveRecord::Validations::PresenceValidator | |
v.attributes | |
end | |
end | |
# 去 nil 并 二维转一维 | |
if presence_fields.compact.flatten.exclude?(field) | |
return true | |
else | |
return false | |
end | |
end |
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