【发布时间】:2015-09-18 04:24:12
【问题描述】:
我正在开发烧瓶应用程序。我制作了一张将填充 JSON 数据的表格。对于前端,我使用的是 Angularjs,而对于后端,我使用的是烧瓶。但我无法填充表格并收到类似“UndefinedError: 'task' is undefined.”的错误
flask 项目目录
烧瓶项目/
休息服务器.py
模板/index.html
rest-server.py
#!flask/bin/python
import six
from flask import Flask, jsonify, abort, request, make_response, url_for, render_template
app = Flask(__name__, static_url_path="")
auth = HTTPBasicAuth()
tasks = [
{
'id': 1,
'title': u'Buy groceries',
'description': u'Milk, Cheese, Pizza, Fruit, Tylenol',
'done': False
},
{
'id': 2,
'title': u'Learn Python',
'description': u'Need to find a good Python tutorial on the web',
'done': False
}
]
@app.route('/')
def index():
return render_template('index.html')
@app.route('/todo/api/v1.0/tasks', methods=['GET'])
def get_tasks():
return jsonify({'tasks': [make_public_task(task) for task in tasks]})
我成功地能够使用 json 数据
http://127.0.0.1:5000/todo/api/v1.0/tasks
Json 数组是
{
"tasks":
[
{
"description": "Milk, Cheese, Pizza, Fruit, Tylenol",
"done": false,
"title": "Buy groceries",
"uri": "http://127.0.0.1:5000/todo/api/v1.0/tasks/1"
},
{
"description": "Need to find a good Python tutorial on the web",
"done": false,
"title": "Learn Python",
"uri": "http://127.0.0.1:5000/todo/api/v1.0/tasks/2"
}
]
}
Index.html
<!DOCTYPE html>
<html ng-app="app">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet">
</head>
<body data-ng-app="app">
<!--our controller-->
<div ng-controller="ItemController">
<button id="get-items-button" ng-click="getItems()">Get Items</button>
<p>Look at the list of tasks!</p>
<!--this table shows the items we get from our service-->
<table cellpadding="0" cellspacing="0">
<thead>
<tr>
<th>Description</th>
<th>Done</th>
<th>Title</th>
<th>URI</th>
</tr>
</thead>
<tbody>
<!--repeat this table row for each item in items-->
<tr ng-repeat="task in tasks">
<td>{{task.description}}</td>
<td>{{task.done}}</td>
<td>{{task.title}}</td>
<td>{{task.uri}}</td>
</tr>
</tbody>
</table>
</div>
<script>
(function () {
//create our module
angular.module('app', [])
//add controller
.controller('ItemController', function ($scope, $http) {
//declare an array of items. this will get populated with our ajax call
$scope.tasks = [];
//declare an action for our button
$scope.getItems = function () {
//perform ajax call.
$http({
url: "/todo/api/v1.0/tasks",
method: "GET"
}).success(function (data, status, headers, config) {
//copy the data we get to our items array. we need to use angular.copy so that
//angular can track the object and bind it automatically.
angular.copy(data.tasks, $scope.tasks);
}).error(function (data, status, headers, config) {
//something went wrong
alert('Error getting data');
});
}
});
//console.log($scope.tasks);
})();
</script>
</body>
</html>
【问题讨论】:
-
您的服务器响应是一个对象,在该对象内部是任务数组。试试
angular.copy(data.tasks, $scope.tasks);或$scope.tasks = angular.copy(data.tasks);(同样的事情)。 -
$scope.tasks得到了什么? -
@victmo 感谢您的回复,但仍然遇到同样的错误..
-
请你制作一个小提琴好吗?
-
@Vineet 在小提琴中我们无法创建烧瓶应用程序,这里我们使用的是rest api..
标签: python ajax json angularjs flask