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[英]ruby on rails observe_form help, how to exclude form field
[英]Ruby on Rails: How do I get observe_form to wait until two fields are filled before updating?
<%= observe_form :date_range_filter,
:frequency=>0.5,
:update=>'perfomance',
:url=>{:action=>'filter_date_range'},
:before => "startLoad('perfomance');",
:complete => "stopLoad('perfomance');" %>
我有兩個字段:date_after和date_before
如何讓觀察者等到兩個人都有數據?
rails文檔( http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper.html )顯示,可以將“:condition”選項與observe_form一起使用:不被發起。”。
所以像這樣:
:condition => "$('field1').value != '' && $('field2').value != ''"
可能會工作。
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