未定义的方法“合并”为“xxxxxx”：String rails form_for [英] undefined method `merge' for "xxxxxx":String rails form_for

问题描述

 <％= form_for @vendor，multipart：true do | f | ％GT; 
 <％= f.text_field：name，Store Name％> 
 <％= f.text_field：地址，店铺地址％> 
<％= f.file_field：image％> 
 <％= f.submitSave，class：btn btn-success％> 
<％end％> 
  

以及这些供应商方式：

  def new 
 @vendors = Vendor.all 
 @vendor = Vendor.new 
结束
 
 def vendor_params 
 params .require（：vendor）.permit（：id，：name，：latitude，：longitude，：address，：image）
 end 
  

当我尝试渲染页面时，出现此错误：

 未定义的方法商店名称的合并：字符串
提取的源代码（在第8行附近）：
 
 5：< h4>新供应商表格< / h4> 
 6：
 7：<％= form_for @vendor，：html => {：multipart => true} do | f | ％GT; 
 8：<％= f.text_field：name，Store Name％> 
 9：<％= f.text_field：address，Store Address％> 
 10：<％= f.file_field：image％> 
 11：<％= f.submitSave，class：btn btn-success％> 
  

我不确定为什么 merge 是在这里被称为。它可能在隐藏领域吗？我发现与这个错误有关的大部分答案都与隐藏字段有关。我使用地理编码器在验证后对地理编码进行了地理编码，并且很长时间（如果这是相关的）：

  class Vendor< ; ActiveRecord :: Base 
 
 
 geocoded_by：address 
 after_validation：geocode，
：if => lambda {| obj | obj.address_changed？ } 
 end 
  

这里的任何帮助非常感谢！

..

 <％= form_for @vendor，multipart：true do | f | ％GT; 
 <％= f.text_field：name，：value => 商店名称％> 
 <％= f.text_field：address，：value => 商店地址％> 
<％= f.file_field：image％> 
 <％= f.submitSave，class：btn btn-success％> 
<％end％> 
  

I have this form in /new.html.erb:

<%= form_for @vendor, multipart: true do |f| %>
<%= f.text_field :name, "Store Name" %>
<%= f.text_field :address, "Store Address" %>
<%= f.file_field :image %>
<%= f.submit "Save", class: "btn btn-success" %>
<% end %>

and these Vendor methods:

def new
    @vendors = Vendor.all
    @vendor = Vendor.new
end

def vendor_params
    params.require(:vendor).permit(:id, :name, :latitude, :longitude, :address, :image)
end

When I try to render the page, I get this error:

undefined method `merge' for "Store Name":String
Extracted source (around line #8):

5: <h4>New Vendor Form</h4>
6: 
7: <%= form_for @vendor, :html => {:multipart => true} do |f| %>
8: <%= f.text_field :name, "Store Name" %>
9: <%= f.text_field :address, "Store Address" %>
10: <%= f.file_field :image %>
11: <%= f.submit "Save", class: "btn btn-success" %>

I'm not sure why merge is being called here. Is it in a hidden field possibly? Most of the answers I found pertaining to this error had to do with hidden fields. I'm using Geocoder to geocode lat and long after validation like so (not sure if this is relevant):

class Vendor < ActiveRecord::Base


    geocoded_by :address
    after_validation :geocode,
        :if => lambda{ |obj| obj.address_changed? }
end

Any help here is much appreciated! Thanks in advance.

解决方案

you should write like this because your 2nd parameter should be an option hash, it should not be a value..

<%= form_for @vendor, multipart: true do |f| %>
<%= f.text_field :name, :value => "Store Name" %>
<%= f.text_field :address, :value => "Store Address" %>
<%= f.file_field :image %>
<%= f.submit "Save", class: "btn btn-success" %>
<% end %>

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