#37 Simple Search Form

最新推荐文章于 2025-10-30 03:31:37 发布

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本文介绍了一种在Ruby on Rails应用中实现简单搜索表单的方法。通过展示具体的代码示例，包括视图部分的表单创建及控制器与模型中的搜索逻辑实现，使读者能够快速掌握如何在项目中加入搜索功能。

A search form is quite different than other forms, this is because it does not deal with model's attributes. See a good way to add a simple search form in this episode.

<!-- projects/index.rhtml -->
<% form_tag projects_path, :method => 'get' do %>
  <p>
    <%= text_field_tag :search, params[:search] %>
    <%= submit_tag "Search", :name => nil %>
  </p>
<% end %>
# projects_controller.rb
def index
  @projects = Project.search(params[:search])
end

# models/project.rb
def self.search(search)
  if search
    find(:all, :conditions => ['name LIKE ?', "%#{search}%"])
  else
    find(:all)
  end
end