{"id":1127,"date":"2015-08-05T01:53:51","date_gmt":"2015-08-05T01:53:51","guid":{"rendered":"http:\/\/www.honobono-life.info\/wpeng\/?p=1127"},"modified":"2015-08-05T01:55:22","modified_gmt":"2015-08-05T01:55:22","slug":"delete-user-with-angularjs","status":"publish","type":"post","link":"http:\/\/www.honobono-life.info\/wpeng\/delete-user-with-angularjs\/","title":{"rendered":"Ruby on Rails Tutorial delete user with AngularJS"},"content":{"rendered":"

(1)Administrative users<\/strong><\/p>\r\n\r\n

1)adds the admin column to the users table<\/strong><\/p>\r\n\r\n

$ rails generate migration add_admin_to_users admin:boolean<\/p>\r\n\r\n

$ vi db\/migrate\/…._add_admin_to_users.rb<\/p>\r\n\r\n

\r\nclass AddAdminToUsers < ActiveRecord::Migration\r\n  def change\r\n    add_column :users, :admin, :boolean, default: false\r\n  end\r\nend<\/pre>\r\n\r\n
2\uff09migrate<\/strong><\/p>\r\n\r\n
$ bundle exec rake db:migrate<\/p>\r\n\r\n
3\uff09sample data<\/strong><\/p>\r\n\r\n
$ rails console<\/p>\r\n\r\n
2.0.0p247 :001 > adminuser = User.create(name: "admin", email: "admin@example.com", password: "xxxxx", password_confirmation: "xxxxx",admin: true)
\r\n2.0.0p247 :002 > adminuser.admin?
\r\n => true<\/p>\r\n\r\n
(2)Rails controller<\/strong><\/p>\r\n\r\n
1)destroy action<\/strong><\/p>\r\n\r\n
$ vi app\/controllers\/users_controller.rb<\/p>\r\n\r\n
\r\n  def destroy\r\n    User.find(params[:id]).destroy\r\n    head :no_content\r\n  end<\/pre>\r\n\r\n
2)users have to be logged in to delete users<\/strong><\/p>\r\n\r\n
$ vi app\/controllers\/users_controller.rb<\/p>\r\n\r\n
before_action :signed_in_user, only: [:index,:update,:destroy]<\/p>\r\n\r\n
3)only admins can delete users<\/strong><\/p>\r\n\r\n
$ vi app\/controllers\/users_controller.rb<\/p>\r\n\r\n
\r\n  before_action :admin_user,     only: :destroy\r\n......\r\n  private\r\n........\r\n    def admin_user\r\n      remember_token = User.encrypt(cookies[:remember_token])\r\n      current_user ||= User.find_by(remember_token: remember_token)\r\n      render status: :unauthorized unless current_user.admin?\r\n    end<\/pre>\r\n\r\n
(3)AngularJS template view<\/strong><\/p>\r\n\r\n
$ vi app\/assets\/templates\/users\/index.html.erb<\/p>\r\n\r\n
\r\n<ul ng-repeat="user in currentitems" class="users">\r\n  <li>\r\n    <img alt="{{user.name}}" src="https:\/\/secure.gravatar.com\/avatar\/{{hash(user.email)}}?s=52" \/>\r\n    <a href="\/users\/{{user.id}}">{{user.name}}<\/a>\r\n    <a ng-show="{{ychkAdmin}}" href="" ng-click="delete(user.id)">| delete<\/a>\r\n  <\/li>\r\n<\/ul><\/pre><\/div>\r\n\r\n
(4)AngularJS controller<\/strong><\/p>\r\n\r\n
$ vi app\/assets\/javascripts\/mymodule.js.erb<\/p>\r\n\r\n
\r\nmyModule.controller("UsersIndexCtrl", function($scope, userResource, flashService, $location, sessionResource, $q) {\r\n......\r\n  var deferred = $q.defer();\r\n  deferred.promise.then(function (result) {\r\n    var user_info = result;\r\n    if (user_info.user.id > 0) {\r\n      $scope.chkAdmin = user_info.user.admin;\r\n      userResource.index({}, function(response) {\r\n        $scope.users = response;\r\n        $scope.totalitems = $scope.users.length;\r\n        $scope.currentitems = $scope.users.slice(start,end);\r\n\r\n        $scope.$watch('currentpage', function() {\r\n          start = ($scope.currentpage - 1) * $scope.itemsperpage;\r\n          end = start + $scope.itemsperpage;\r\n          $scope.currentitems = $scope.users.slice(start,end);\r\n        },true);\r\n      });\r\n    } else {\r\n      $location.path("\/signin");\r\n    }\r\n  },function (reason) {\r\n    console.log("qgetUser-Error");\r\n  })\r\n  qgetUser (deferred);\r\n......\r\n  $scope.delete = function(id) {\r\n    userResource.destroy({ id: id });\r\n    userResource.index({}, function(response) {\r\n      $scope.users = response;\r\n      $scope.totalitems = $scope.users.length;\r\n      $scope.currentitems = $scope.users.slice(start,end);\r\n    });\r\n  };\r\n});\r\n<\/pre>\r\n","protected":false},"excerpt":{"rendered":"
(1)Administrative users 1)adds the admin column to the users table $ rails generate migration add_admin_to_users admin:boolean $ vi db\/migrate\/…._add_admin_to_users.rb class AddAdminToUsers < ActiveRecord::Migration def change add_column :users, :admin, :boolean, default: false end end 2\uff09migrate $ bundle exec rake db:migrate 3\uff09sample data $ rails console 2.0.0p247 :001 > adminuser = User.create(name: "admin", email: "admin@example.com", password: "xxxxx", […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137],"tags":[175,35,177,176],"amp_enabled":true,"_links":{"self":[{"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/posts\/1127"}],"collection":[{"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/comments?post=1127"}],"version-history":[{"count":1,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/posts\/1127\/revisions"}],"predecessor-version":[{"id":1128,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/posts\/1127\/revisions\/1128"}],"wp:attachment":[{"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/media?parent=1127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/categories?post=1127"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.honobono-life.info\/wpeng\/wp-json\/wp\/v2\/tags?post=1127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}