[英]fetch data from database using angularjs using where clause
我想使用angularjs从mysql数据库加载数据。
这就是应用程序的工作方式。 用户登录，其用户名存储在cookie中。 此用户名显示在主页上
我想获取此值并通过angularjs传递给php脚本，以基于具有where子句的用户名从表中获取数据
这是我的PHP脚本
<?php
include_once 'connect.php';
$data = json_decode(file_get_contents("php://input"));
$statement = $conn->prepare('SELECT MessageId, Subject, MessageContent, CONCAT(Date, " , ", Time) AS Date, FromUser, ToUser, MessageType, File, FileName FROM messages where MessageType = "Broadcast" or ToUser=:UserName order by MessageId desc');
$statement->execute(array(
'UserName' => $data->UserCookie
));
while($row = $statement->fetch()) {
$data[] = $row;
}
print json_encode($data);
?>
这是我的角度剧本
var app = angular.module('Library', ["ngCookies"]);
app.controller('LibraryController', function($scope, $http, $interval, $cookies) {
//get cookie user name
$scope.UserCookie = $cookies.get('cookieUserName');
//set cookie user name
$scope.setCookie = function(val){
$cookies.put('cookieUserName', val);
}
//display messages
$scope.loadMessages = function() {
$http.post('selectMessages.php',{'UserName': $scope.UserCookie})
.success(function(data) {
$scope.Messages = data;
})
}
//display messages at an interval of 1 seconds
$interval($scope.loadMessages, 1000);
});
这是我的主页
<!DOCTYPE html ng-app="Library" ng-controller="LibraryController">
<html>
<head>
<title></title>
</head>
<body ng-init="loadMessages()">
<div class="form-group">
<label for="Subject">User</label>
<input type="text" ng-model="UserCookie" name="UserCookie" class="form-control" id="UserCookie" required="required"></input>
</div>
<input type="search" class="form-control" ng-model="searchMessage" placeholder="Search"> <br />
<table class="table table-hover">
<thead>
<tr>
<th>Message (Sender)</th>
</tr>
</thead>
<tbody>
<tr ng-click="selectMessage(message.MessageId, message.MessageContent, message.Date, message.Time, message.File)" onclick="showCommentDialog()" style="font-size: 16px" ng-repeat="message in Messages | filter:searchMessage | limitTo:20">
<td>{{ message.Subject }} (<span style="color:green"> {{ message.FromUser }})</span></td>
<td>
<button class="btn btn-success" ng-click="selectMessage(message.MessageId, message.MessageContent, message.Date, message.Time, message.File)" onclick="showCommentDialog()" > view </button>
</td>
</tr>
</tbody>
</table>
</body>
</html>
请参阅此链接以获取帮助。 您的ng-repeat中有重复的键。
根据更新后的答案和收到的错误，代码中存在一些隐藏的错误/问题。 您将获得输入，从json解码并将其保存在$data变量中（只要您不将true作为第二个参数传递， json_decode返回object）。 在while循环中，您尝试将新元素添加到$data因为它是array ，但不是。
这是它的外观：
<?php
include_once 'connect.php';
$data = json_decode(file_get_contents("php://input"));
$outputData = [];
if($data && isset($data->UserCookie)) {
$statement = $conn->prepare('SELECT MessageId, Subject, MessageContent, CONCAT(Date, " , ", Time) AS Date, FromUser, ToUser, MessageType, File, FileName FROM messages where MessageType = "Broadcast" or ToUser=:UserName order by MessageId desc');
$statement->execute(array(
'UserName' => $data->UserCookie
));
while($row = $statement->fetch()) {
$outputData[] = $row;
}
}
print json_encode($outputData);
?>
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