[英]Delete record from database on clicking button using ruby on rails
我正在研究一種在用戶按下“刪除按鈕”時從數據庫中刪除記錄的方法問題是當我單擊該按鈕時,我想刪除的包會從網站中刪除,但是當我檢查數據庫時,我找到了記錄是。
控制器:
def deletepackage(user_id,package_id)
@package=Packages.find(:all, :condition=>{:id => package_id},
:condition => {:sender_Id => user_id})
if (@package!=nil && req.receivedByCarrier==false)
@package.destroy
elsif (@package!=nil && req.receivedByCarrier==true)
@package.destroy
end
return;
end
def delete
deletepackage(1,1)
package.destroy
redirect_to(:action => 'show')
end
def show
@create_package=Packages.find(params[:id ])
end
Show.html.erb :
<%=form_for(:package,:url{:action=>'create_packages/delete',
:id=>@create_package.id})do |f| %>
<p>Are you sure you want to delete this package?</p>
<%= f.submit "Delete" %>
顯示.html.erb:
<%= link_to 'Delete', controller: 'your_controller_name', action: 'destroy', id: @package.id, method: :delete %>
控制器:
def show
@package = Packages.find(params[:id])
end
def destroy
Packages.find_by(id: params[:id], sender_Id: 1).destroy
redirect_to :index
end
您無法從 destroy 重定向到“顯示”操作,因為沒有要顯示的包(包已銷毀)。
PS:
我認為,您需要學習一些 rails-tutorials,例如Michael Hartl's Tutorial 。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.