[英]Ruby on Rails- Making input required for a form
I am trying to make this input in my search required to start a search. 我试图在我的搜索中输入此内容以开始搜索。 I tried :validate if there is input but that didn't work.
我尝试:validate是否有输入,但是没有用。 Any suggestions?
有什么建议么?
<%= text_field_tag "location", params[:location], :placeholder => 'City, zipcode, or address' %>
In whatever model the location belongs to, try adding this syntax: 无论位置属于哪种模型,请尝试添加以下语法:
class whatever < ActiveRecord::Base
validates :location, presence: true
end
make sure that location is part of attar_accessible in your model. 确保该位置是模型中attar_accessible的一部分。
change the syntax 更改语法
<%= text_field_tag "location", "#{params[:location]}", :placeholder => 'City, zipcode, or address' {:required => true} %>
and add this to your model 并将其添加到您的模型中
validates :location, presence: true
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