我是一个 Angular 新手，使用来自 isteven 的多选指令.
我写了一个test case ，它在根文件夹中的 HTML 中工作正常，但是当我将它合并到 my app 中时，所有下拉菜单都不可见。
没有 console.log 错误消息。
我将 HTML 和 Controller 捆绑到同一个文件中。
“myApp.controller('MainCtrl', function ($scope, $http)”没有被执行，尽管“var myApp = angular.module( “myApp”, [ “isteven-multi-select” ]) ;"确实如此。
<html data-ng-app="myApp" id="myApp" lang="en">
<head>
<title>Writer's Tryst - Enablers Form</title>
<link type="text/css" href="css/enablers.css" rel="stylesheet" />
<link rel="stylesheet" href="css/isteven-multi-select.css">
</head>
<body data-ng-controller="MainCtrl">
<div class="container center_div">
<!--<form id="form-writers" class="form-horizontal well">-->
<img id="img-enablers" src="#" alt="images" />
<form id = "form-enablers" class="form-horizontal well">
<h1>Enablers</h1>
<label for="work-type" class="fixed50">Type:</label>
<p id="work-type"
data-isteven-multi-select
data-input-model="worktype"
data-output-model="outputWorktype"
data-button-label="icon name"
data-item-label="icon name"
data-tick-property="ticked"
></p>
<label for="form-type" class="fixed50">Form:</label>
<p id="form-type"
data-isteven-multi-select
data-input-model="formtype"
data-output-model="outputFormtype"
data-button-label="name"
data-item-label="name"
data-tick-property="ticked"
></p>
<p>For an explanation of the genres s hown here, see <a target="_blank" href="https://en.wikipedia.org/wiki/List_of_genres">List of genres</a><br/></p>
<label for="genres" class="fixed50">Genres:</label>
<p id="genres"
data-isteven-multi-select
data-input-model="genres"
data-output-model="outputGenres"
data-button-label="name"
data-item-label="name"
data-tick-property="ticked"
></p>
<label for="accepted-media" class="fixed50">Accepted Media:</label>
<p id="accepted-media"
data-isteven-multi-select
data-input-model="acceptedMedia"
data-output-model="outputMedia"
data-button-label="icon name"
data-item-label="icon name"
data-tick-property="ticked"
></p>
<p> <label for="special-instructions" class="fixed50">Special Instructions</label>
<textarea id ="special-instructions" name="special-instructions">
</textarea>
</p>
<p>For a limited time, enablers can use this site for <span style="color: #f00; font-weight:bold">FREE</span>. We reserve the right to change this policy without notice.</p>
<div id="recaptcha-elements"></div>
<div class="form-group">
<button type="submit" id="enablers-search" class="btn btn-default glyphicon glyphicon-search"> Search</button>
</div>
<input id="userid" name="userid" type="hidden" />
</form>
</div>
<form id="writers-list">
<p>To request a manuscript, click the checkbox beneath the thumbs-up icon.</p>
<div id="table-list"></div>
</form>
<script src="js/isteven-multi-select.js"></script>
<script src="js/enablers.js"></script>
<script src="js/recaptcha.js"></script>
<script>
var myApp = angular.module( "myApp", [ "isteven-multi-select" ]);
myApp.controller('MainCtrl', function ($scope, $http) {
alert("got here");
$scope.worktype = [
{ icon: "<img src=img/icons/smile-mask.png />", name: "Fiction", ticked: false },
{ icon: "<img src=img/icons/frown-mask.png />", name: "Non-Fiction", ticked: false }
];
$scope.formtype = [];
var data = {};
data.action = 'multiselect-forms';
ajax('post', 'php/enablers.php', data, formsSuccess, 'Error retrieving multiselect forms data: ');
function formsSuccess(data) {
console.log(data);
$scope.formtype = eval(data);
}
$scope.genres = [];
data.action = 'multiselect-genres';
ajax('post', 'php/enablers.php', data, genresSuccess, 'Error retrieving multiselect forms data: ');
function genresSuccess(data) {
console.log(data);
$scope.genres = eval(data);
}
$scope.acceptedMedia = [
{ icon: "<img src=img/icons/email.png />", name: "Mail", ticked: false },
{ icon: "<img src=img/icons/pdf.png />", name: "PDF File", ticked: false }
];
/*
$http({
method: "POST",
url: "php/enablers.php",
params: data,
contentType: 'text'
}).then(function mySucces(response) {
console.log(response.data);
// $scope.formtype = response.data;
}, function myError(response) {
$scope.FORMTYPE = response.statusText;
});
*/
})
</script>
</body> s
</html>
注意，我求助于使用 jQuery Ajax，因为 Angular 一直在 JSON 上，即使来自 PHP 接口(interface)的 header 指定了 text/plain 的内容类型以及指定 contentType = 'text' 的 http 调用
PHP
<?php
require_once 'dbconnect.php';
function isEmpty($str) {
return strlen(trim($str)) == 0;
}
function buildInStmt($array)
{
if (is_array($array)) {
$in = implode(',', $array);
} else $in = "'" . $array . "'";
return $in;
}
function multiselectGenres()
{
try {
$dbh = connect2DB();
$stmt = $dbh->prepare("SELECT ID, Genre FROM Genres ORDER BY Genre");
if (!$stmt->execute()) {
echo "\nPDOStatement::errorCode(): ";
print $stmt->errorCode();
print_r($dbh->errorInfo());
} else {
$select = "[";
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
$genre = $row['Genre'];
$id = $row["ID"];
$select .= "{";
$select .= 'name: ';
$select .= '"' . $genre . '",';
$select .= 'ticked: false},';
}
$select = substr($select, 0, -1) . "]";
}
header("Content-Type: text/plain");
echo $select;
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
}
function multiselectForms() {
try {
$dbh = connect2DB();
$stmt = $dbh->prepare("SELECT ID, Form FROM Forms ORDER BY Form");
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
$select = "[";
foreach ($rows as $row) {
$id = $row['ID'];
$form = $row['Form'];
$select .= "{";
$select .= 'name: ';
$select .= '"' . $form . '",';
$select .= 'ticked: false},';
}
$select = substr($select, 0, -1) . "]";
header("Content-Type: text/plain");
echo $select;
} catch (PDOException $e) {
echo 'Database error: ' . $e->getMessage();
} catch (Exception $e) {
echo 'General failure: ' . $e->getMessage();
}
}
function search() {
try{
/*
if (!isset($_REQUEST["work-type"]) || isEmpty($_REQUEST["work-type"]))
throw new Exception('You must select a type of work.');
else {
$worktype = filter_var(trim($_REQUEST["work-type"]), FILTER_SANITIZE_STRING);
$worktype = htmlspecialchars_decode($worktype, ENT_QUOTES);
}
*/
manageEnablerData();
if (!isset($_REQUEST["userid"]) || isEmpty($_REQUEST["userid"])) {
throw new Exception('A user-id must be supplied.');
}
$userid = $_REQUEST["userid"];
if (!isset($_REQUEST["form-type"]) || empty($_REQUEST["form-type"])) {
throw new Exception('You must select a form type.');
}
$forms = buildInStmt($_REQUEST["form-type"]);
if (!isset($_REQUEST["genre"]) || empty($_REQUEST["genre"])) {
throw new Exception('You must select a genre.');
}
$genres = buildInStmt($_REQUEST["genre"]);
/*
if (!isset($_REQUEST["sub-genre"]) || isEmpty($_REQUEST["sub-genre"]))
throw new Exception('You must select a sub-genre.');
else {
$subgenre = filter_var(trim($_REQUEST["sub-genre"]), FILTER_SANITIZE_STRING);
$subgenre = htmlspecialchars_decode($subgenre, ENT_QUOTES);
}
*/
$dbh = connect2DB();
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $dbh->prepare("SELECT a.ID, a.Email, a.Name, w.Title, w.Filename FROM Writers w JOIN Accounts a ON a.ID = w.fkAccounts WHERE a.ID = :userid AND FormType IN($forms) AND Genre IN($genres)");
$stmt->bindParam(':userid', $userid, PDO::PARAM_INT);
$stmt->execute();
$rows = $stmt->fetchAll();
$table = '<table><tr><th>Author</th><th>Title</th><th>Synopsis</th><th><img src="img/Thumb-up-icon.png" width="32" alt="thumbs-up" </th></tr>';
foreach ($rows as $row) {
$table .= "<tr><td>" . $row['Name'] . "</td><td>" . $row['Title'] . "</td><td>" . "<a href='uploads/" . $row['Filename'] . "' target=_blank>synposis file</a>" . "</td><td><input type='checkbox' id='request-manuscript' name='request-manuscript'" . "</td><td class='hidden'>" . $row['ID'] . "</td><td class='hidden'>" . $row['Email'] . "</td></tr>";
}
$table .= "</table>";
echo $table;
} catch (PDOException $e) {
echo 'Database error: ' . $e->getMessage();
} catch (Exception $e) {
echo 'General error: ' . $e->getMessage();
}
}
function manageEnablerData()
{ $si = ""; //special-instructions
if (isset($_REQUEST["special-instructions"]) && !isEmpty($_REQUEST["special-instructions"])) {
$si = filter_var(trim($_REQUEST["special-instructions"]), FILTER_SANITIZE_STRING);
$si = htmlspecialchars_decode($si, ENT_QUOTES);
}
if (!isset($_REQUEST["userid"]) || isEmpty($_REQUEST["userid"])) {
throw new Exception('A user-id must be supplied.');
}
$userid = $_REQUEST["userid"];
/*
if (!isset($_REQUEST["accepted-media"]) || empty($_REQUEST["accepted-media"])) {
throw new Exception('An accepted media must be entered.');
}
$acceptedMedia = buildInStmt($_REQUEST["accepted-media"]);
*/
$dbh = connect2DB();
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $dbh->prepare("INSERT Enablers(fkAccounts, SpecialInstructions) VALUES(:fka, :si) ON DUPLICATE KEY UPDATE fkAccounts=VALUES(fkAccounts), SpecialInstructions=VALUES(SpecialInstructions)");
$stmt->bindParam(':fka', $userid, PDO::PARAM_INT);
$stmt->bindParam(':si', $si, PDO::PARAM_STR);
$stmt->execute();
//need to handle AcceptedMedia
}
//var_dump($_REQUEST);exit();
if (!isset($_REQUEST['action']) || isEmpty($_REQUEST['action']))
throw new Exception('Programmer error: action not posted.');
else {
$action = $_REQUEST['action'];
switch($action) {
case 'search':
search();
break;
case 'select':
select();
break;
case 'multiselect-genres':
multiselectGenres();
break;
case 'multiselect-forms':
multiselectForms();
break;
default:
throw new Exception("Unknown action: " . $action);
break;
}
}
?>
如果您认为我应该投反对票，请帮助我了解我做错了什么，以便我从错误中吸取教训。
最佳答案
<强>1。为什么不工作:
一个)。在您的测试用例中，您输入了<body data-ng-controller="MainCtrl">在你的 html 中，这将调用 MainCtrl功能。
b).在您的应用中，您还有一个 MainCtrl , 但你既不是从 html 也不是 $routeProvider.when 调用的
解决方案:
1).最简单的方法:做 <body data-ng-controller="MainCtrl">在您的应用中，与您的测试用例相同。
2).将代码放在 MainCtrl 中进入enablersController .如果刚好需要这个在页面中选择输入模型#/enablers .
都是猜测，试试看，有什么问题告诉我。
关于javascript - 为什么我的 angularjs 多选界面不起作用？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37425773/