我正在创建具有附件的对象。我是通过分裂一个真实的领域(可能是我的问题的真正来源)伪造领域。另外,这些工作正常,但是当我附加文件时,我的验证似乎在我的控制器逻辑运行之前运行,并且我最终得到如下错误:
undefined method `match` for nil:Nil at line ...
回形针是否触发了验证?如何在验证运行之前将其关闭,或使我自己的逻辑运行?
我的模型看起来像这样:
attr_accessible :zipcode
has_attached_file :attachment
#this is the line referred to by the error message
validates :zipcode, format: { with: /a_meaningful_regex_here/i}
def initialize
zipcode = '-'
end
def set_zipcode(params={})
zipcode = "#{params[:zipcode1]}-#{params[:zipcode2]}"
end
def zipcode1
zipcode.split('-')[0]
end
def zipcode2
zipcode.split('-')[1]
end
我的表单如下:
<%= form_for @foo do |f| %>
<%= f.file_field :attachment %>
<%= text_field_tag :zipcode1,@foo.zipcode1%> -
<%= text_field_tag :zipcode2,@foo.zipcode2%>
<%= f.submit %>
<% end %>
我的控制器看起来像这样:
def create
@foo = Foo.new(params[:foo])
@foo.set_zipcode(params)
if @foo.save
redirect_to @foo
else
render action: 'new'
end
end
答案 0 :(得分:0)
尝试类似:
before_validation(:on => :zipcode) { set_zipcode }