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所以我試圖過濾一些基於collection_select下拉框的數據。rails collection_select params
我可以成功地使用text_field_tag過濾數據,所以我假設我的過濾器工作正常,但我不能讓collection_select做同樣的事情?
如果我在text_field_tag中輸入1,則會生成「search」=>「1」作爲參數的一部分,但是如果從collection_select中選擇,我會得到...「 {」utf8「=>」 ✓」, 「搜索」=> { 「搜索」=> 「1」},...
index.html.erb
<h1>Students#index</h1>
<p>Find me in app/views/students/index.html.erb</p>
<%= form_tag students_path, :method => 'get' do %>
<%= collection_select :search , :search.to_s, Tutor.all, :id, :name, prompt: true %>
<%= submit_tag "search" %>
<% end %>
<% @students.each do |n| %>
<li>
<%= link_to n.first_name, student_path(n) %>
<%= n.surname %> ..tutor is...
<%= n.tutor.name %>
</li>
<% end %>
<%= params.inspect %>
<%= form_tag(students_path, :method=> "get", id: "search-form") do %>
<%= text_field_tag :search, params[:search], placeholder: "Search Students" %>
<%= submit_tag "Search", :name => nil %>
<% end %>
student.rb
class Student < ActiveRecord::Base
belongs_to :tutor
def self.search(search)
where("tutor_id LIKE ?","%#{search }%")
end
end
students_controller。 rb
class StudentsController < ApplicationController
def index
if params[:search]
@students = Student.search(params[:search])
else
@students = Student.all
end
end
謝謝帕萬,那工作:-) – futureprogress