[英]How to fix undefined method `form_with' in my search bar when building out Global Autocomplete Search?
尝试在rails应用程序中的多个模型上运行全局自动完成搜索并利用easy-autocomplete jquery库和ransack gem进行搜索时,出现一个奇怪的错误。
具体来说,我认为错误在我的导航栏页面中,因为当我尝试undefined method form_with for #<#<class:0x007f875a6f8b58>:0x007f87600e0aa8>
运行查询undefined method form_with for #<#<class:0x007f875a6f8b58>:0x007f87600e0aa8>
时收到此错误
我决定破解并切换form_with的form_tag,但是随后在undefined method text_field for nil:NilClass"
紧下面的行上出现错误undefined method text_field for nil:NilClass"
我在下面列出了所有相关代码。非常感谢您的帮助。
Main_Controller.rb
class MainController < ApplicationController
def index
end
def search
@movies = Movie.ransack(name_cont: params[:q]).result(distinct: true)
@directors = Director.ransack(name_cont: params[:q]).result(distinct: true)
respond_to do |format|
format.html {}
format.json {
@movies = @movies.limit(5)
@directors = @directors.limit(5)
}
end
end
end
_navbar.html.erb
<%= form_with url: search_path, local: true, method: :get, html: { class: "form-inline my-2 my-lg-0" } do |form| %>
<%= form.text_field :q, placeholder: "Search", data: { behavior: "autocomplete" }, class: "form-control mr-sm-2" %>
<%= form.button "Search", class: "btn btn-outline-success my-2 my-sm-0" %>
<% end %>
search.html.erb
<div class="row">
<div class="col">
<h1>Movies</h1>
<% @movies.each do |movie| %>
<p><%= link_to movie.name, movie %></p>
<% end %>
</div>
<div class="col">
<% @directors.each do |director| %>
<p><%= link_to director.name, director %></p>
<% end %>
</div>
</div>
search.js
document.addEventListener("turbolinks:load", function() {
$input = $("[data-behavior='autocomplete']")
var options = {
getValue: "name",
url: function(phrase) {
return "/search.json?q=" + phrase;
},
categories: [
{
listLocation: "movies",
header: "<strong>Movies</strong>",
},
{
listLocation: "directors",
header: "<strong>Directors</strong>",
}
],
list: {
onChooseEvent: function() {
var url = $input.getSelectedItemData().url
$input.val("")
Turbolinks.visit(url)
}
}
}
$input.easyAutocomplete(options)
});
在您的gem文件中,将rails gem更改为最新的:gem'rails','〜> 5.1.1'或更高版本consol:捆绑包更新重新启动rails应用程序希望这对您有用
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