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使用日期_ 选择形式, 想要重新jecct_if 日期为空
原标题:Using date_select in form and wanting to rejecct_if date is empty

我有一个周期模型, 包含开始日期和结束日期。 它属于一个主题模型 。

以我的主题形式,我也想管理这个时期。首先,我为这个时期的两个日期使用了两个文本字段。我还有一个拒绝选项——如果结束日期为零。

  accepts_nested_attributes_for :period,
    reject_if: lambda { |p| p[:end_date].blank? }

它有效。几个月后,我改变了表格格式, 以使用日期选择, 显示输入日期的几条选定语句 。

当我这样做时,我发现每一个选择 会是这样的:

<select name="topic[period_attributes][end_date(1i)]" id="topic_period_attributes_end_date_1i">

注意 1i , 这意味着我的拒绝- 如果不再有效, 因为任何东西都会被拒绝。 我需要更改为 :

  accepts_nested_attributes_for :period,
    reject_if: lambda { |p| p[: end_date(1i) ]].blank? }

这将奏效,但不如以前(只检查某一日期的年份似乎容易出错)那样好。

当我使用日期_ 选择时,是否有正确的拒绝方式?

最佳回答

您可以添加一个班级助手方法, 检查 < code>: end_ date 属性的所有部分 :

def self.date_populated?(params)
  [ 1i ,  2i ,  3i ].select{|date_part| 
    params[:"end_date(#{date_part})"].blank?
  }.blank?
end

并检查帮助者:

reject_if: lambda { |p| !date_populated?(p) }
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