【发布时间】：2015-05-08 23:55:37
【问题描述】：
我正在开发一个使用 Google 定义 API 的 AngularJS 和 Rails 应用程序。 API 返回 JSON 响应。
我想将 JSON 响应存储在我的 Words 表中。我通过我的 Angular 控制器发出 API 请求，然后我试图将数据添加到我的 Words 表中。
我在尝试插入 JSON 数据时收到“未经允许的参数”错误。我进行了研究，这似乎是由于 Rails 4 nested params。
我尝试在 Words 控制器中将嵌套括号添加到我的 word_params 方法，但随后得到“未经许可的参数：dataType、numToShow、groupNumber、groupResult、sectionType、dictionary”...这是 API 响应的一部分。
有没有一种更简单的方法来允许完整的 JSON 数据，而无需在控制器的 word_params 方法中专门定义每个嵌套参数？
方案.rb
create_table "words", force: :cascade do |t|
t.string "title"
t.json "full_data"
t.integer "list_id"
t.datetime "date"
end
文字控制器
class WordsController < ApplicationController
respond_to :json
def create
list = List.find(params[:list_id])
word = list.words.create(word_params)
respond_with list, word
end
private
def word_params
params.require(:word).permit(:title, :date, :full_data => {})
end
end
app.js
//= require angular-rails-templates
//= require_tree .
angular.module('d-angular', ['ui.router', 'templates'])
// Set routing/configuration
// ------------------------------
.config(['$stateProvider', '$urlRouterProvider',
// Set state providers
function($stateProvider, $urlRouterProvider) {$stateProvider
// Home state
.state('home', {
url: '/home',
templateUrl: 'home.html',
controller: 'MainCtrl',
resolve: {
listPromise: ['lists', function(lists){
return lists.getAll();
}]
}
})
// Lists state
.state('lists', {
url: '/lists/{id}',
templateUrl: 'list.html',
controller: 'ListsCtrl',
resolve: {
list: ['$stateParams', 'lists', function($stateParams, lists) {
return lists.get($stateParams.id);
}]
}
})
$urlRouterProvider.otherwise('home');
}
])
// lists factory
// Factories are used to organize and share code across the app.
// ------------------------------
.factory('lists', ['$http',
function($http){
// create new obect with array of lists
var o = { lists: [] };
// get all lists
o.getAll = function() {
return $http.get('/lists.json').success(function(data){
angular.copy(data, o.lists);
});
};
// get specific list
o.get = function(id) {
return $http.get('/lists/' + id + '.json').then(function(res){
return res.data;
});
};
// create list
o.create = function(post) {
return $http.post('/lists.json', post).success(function(data){
o.lists.push(data);
});
};
// add word to list
o.addWord = function(id, word) {
return $http.post('/lists/' + id + '/words.json', word);
};
return o;
}
])
// Lists controller
// ------------------------------
.controller('ListsCtrl', ['$scope', 'lists', 'list', '$http',
// Main scope (used in views)
function($scope, lists, list, $http){
$scope.list = list; // get list by ID
// Add word function
$scope.addWord = function(){
// API URL
var api_url = "https://www.googleapis.com/scribe/v1/research?key=AIzaSyDqVYORLCUXxSv7zneerIgC2UYMnxvPeqQ&dataset=dictionary&dictionaryLanguage=en&query=";
// get data from API
$http.get(api_url + $scope.title)
// handle successful api request
.success(function (response) {
// push new word to array
lists.addWord(list.id, {
title: $scope.title,
date: new Date().toJSON().slice(0,10),
full_data: response
})
.success(function(word) {
$scope.list.words.push(word);
});
});
};
}
]);
控制台响应
Started POST "/lists/1/words.json" for ::1 at 2015-05-08 19:53:11 -0400
Processing by WordsController#create as JSON
Parameters: {"title"=>"fallacy", "date"=>"2015-05-08", "full_data"=>{"dataType"=>"dictionary", "numToShow"=>1, "groupNumber"=>0, "groupResult"=>{"query"=>"fallacy", "displayName"=>"<b>fal·la·cy</b>", "dataset"=>{"dataset"=>"dictionary"}, "score"=>1}, "sectionType"=>"dictionary", "dictionary"=>{"word"=>"fallacy", "dictionaryType"=>"STANDARD", "definitionData"=>[{"word"=>"fallacy", "pos"=>"Noun", "meanings"=>[{"meaning"=>"a mistaken belief, especially one based on unsound argument.", "examples"=>["the notion that the camera never lies is a fallacy"], "synonyms"=>[{"nym"=>"misconception", "nymResult"=>{"query"=>"misconception", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misbelief", "nymResult"=>{"query"=>"misbelief", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"delusion", "nymResult"=>{"query"=>"delusion", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"mistaken impression"}, {"nym"=>"error", "nymResult"=>{"query"=>"error", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misapprehension", "nymResult"=>{"query"=>"misapprehension", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misinterpretation"}, {"nym"=>"misconstruction", "nymResult"=>{"query"=>"misconstruction", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"mistake", "nymResult"=>{"query"=>"mistake", "dataset"=>{"dataset"=>"dictionary"}}}], "submeanings"=>[{"meaning"=>"a failure in reasoning that renders an argument invalid."}, {"meaning"=>"faulty reasoning; misleading or unsound argument.", "examples"=>["the potential for fallacy which lies behind the notion of self-esteem"]}]}], "phoneticText"=>"ˈfaləsē", "wordForms"=>[{"word"=>"fallacy", "form"=>"noun"}, {"word"=>"fallacies", "form"=>"plural noun"}]}]}}, "list_id"=>"1", "word"=>{"title"=>"fallacy", "full_data"=>{"dataType"=>"dictionary", "numToShow"=>1, "groupNumber"=>0, "groupResult"=>{"query"=>"fallacy", "displayName"=>"<b>fal·la·cy</b>", "dataset"=>{"dataset"=>"dictionary"}, "score"=>1}, "sectionType"=>"dictionary", "dictionary"=>{"word"=>"fallacy", "dictionaryType"=>"STANDARD", "definitionData"=>[{"word"=>"fallacy", "pos"=>"Noun", "meanings"=>[{"meaning"=>"a mistaken belief, especially one based on unsound argument.", "examples"=>["the notion that the camera never lies is a fallacy"], "synonyms"=>[{"nym"=>"misconception", "nymResult"=>{"query"=>"misconception", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misbelief", "nymResult"=>{"query"=>"misbelief", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"delusion", "nymResult"=>{"query"=>"delusion", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"mistaken impression"}, {"nym"=>"error", "nymResult"=>{"query"=>"error", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misapprehension", "nymResult"=>{"query"=>"misapprehension", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"misinterpretation"}, {"nym"=>"misconstruction", "nymResult"=>{"query"=>"misconstruction", "dataset"=>{"dataset"=>"dictionary"}}}, {"nym"=>"mistake", "nymResult"=>{"query"=>"mistake", "dataset"=>{"dataset"=>"dictionary"}}}], "submeanings"=>[{"meaning"=>"a failure in reasoning that renders an argument invalid."}, {"meaning"=>"faulty reasoning; misleading or unsound argument.", "examples"=>["the potential for fallacy which lies behind the notion of self-esteem"]}]}], "phoneticText"=>"ˈfaləsē", "wordForms"=>[{"word"=>"fallacy", "form"=>"noun"}, {"word"=>"fallacies", "form"=>"plural noun"}]}]}}, "date"=>"2015-05-08"}}
List Load (0.1ms) SELECT "lists".* FROM "lists" WHERE "lists"."id" = $1 LIMIT 1 [["id", 1]]
Unpermitted parameters: dataType, numToShow, groupNumber, groupResult, sectionType, dictionary
(0.1ms) BEGIN
Word Exists (0.2ms) SELECT 1 AS one FROM "words" WHERE ("words"."title" = 'fallacy' AND "words"."title" = 'fallacy') LIMIT 1
SQL (0.2ms) INSERT INTO "words" ("title", "date", "full_data", "list_id") VALUES ($1, $2, $3, $4) RETURNING "id" [["title", "fallacy"], ["date", "2015-05-08 00:00:00.000000"], ["full_data", "{}"], ["list_id", 1]]
(0.7ms) COMMIT
Completed 201 Created in 8ms (Views: 0.4ms | ActiveRecord: 1.4ms)
【问题讨论】：
标签： ruby-on-rails json ruby-on-rails-4