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[英]Is it weird to develop in ruby on rails without using any additional gems
[英]How can I create a Rails search bar facility without using additional gems
我正在為我們的社區構建一個小型分類應用程序,使人們可以使用僅帶有參數描述和圖像的表格列出要出售的產品。
這兩個參數都在schema.rb中
問題:
我已經將搜索欄嵌入到index.html.erb上,並且還創建了一個空白的show.html.erb。 目前,搜索欄除了看上去很漂亮之外什么也沒做,
我正在努力了解如何進行搜索以詢問描述參數並將結果傳遞到show.html.erb上。
注意:我希望show.html.erb頁及其搜索結果可以使我的索引頁外觀精美,並無需另外安裝gem即可完成此任務。
class PinsController < ApplicationController
before_action :set_pin, only: [:show, :edit, :update, :destroy]
before_action :correct_user, only: [:edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
def index
@pins = Pin.all.order("created_at DESC").paginate(:page => params[:page], :per_page => 15)
end
def show
end
def new
@pin = current_user.pins.build
end
def edit
end
def create
@pin = current_user.pins.build(pin_params)
if @pin.save
redirect_to @pin, notice: 'Pin was successfully created.'
else
render :new
end
end
def update
if @pin.update(pin_params)
redirect_to @pin, notice: 'Pin was successfully updated.'
else
render :edit
end
end
def destroy
@pin.destroy
redirect_to pins_url
end
private
# Use callbacks to share common setup or constraints between actions.
def set_pin
@pin = Pin.find_by(id: params[:id])
end
def correct_user
@pin = current_user.pins.find_by(id: params[:id])
redirect_to pins_path, notice: "Not authorized to edit this pin" if @pin.nil?
end
# Never trust parameters from the scary internet, only allow the white list through.
def pin_params
params.require(:pin).permit(:description, :image)
end
end
將您的索引方法更改為是否具有搜索查詢。
def index
if params[:query]
@results = Advert.where('lower(description) LIKE ?', '%#{params[:query].downcase}%')
else
@results = Advert.all
end
end
您還可以使用javascript創建過濾器,或者安裝searchkick
gem,或者如果您需要真正簡單的安裝rails4-autocomplete
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