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Javascript 如何在单个下拉框中将多个单独的查询结果显示为选项?_Javascript_Jquery_Underscore.js - Fatal编程技术网

Javascript 如何在单个下拉框中将多个单独的查询结果显示为选项?

Javascript 如何在单个下拉框中将多个单独的查询结果显示为选项?,javascript,jquery,underscore.js,Javascript,Jquery,Underscore.js,请参考这里的快速和肮脏的jfiddle 赏金是通过使用更新的JFIDLE获得以下答案。基本上,下拉菜单显示功能的两个选项。单击其中一个选项时,结果将在页面上返回 我认为下面的答案将有助于解决这个问题,不管我的尝试有多失败 如果单击按钮,这就是我希望在使用过滤器时复制的最终结果 代码 </head> <body> <!--Drop down filter box that should show each option returned from func

请参考这里的快速和肮脏的jfiddle

赏金是通过使用更新的JFIDLE获得以下答案。基本上,下拉菜单显示功能的两个选项。单击其中一个选项时,结果将在页面上返回

我认为下面的答案将有助于解决这个问题,不管我的尝试有多失败

如果单击按钮,这就是我希望在使用过滤器时复制的最终结果

代码

</head>

<body>

    <!--Drop down filter box that should show each option returned from functions below-->

    <form>
        <select name="huge" class="btn-group select select-block mbl select-multiple" id="select#FriendsConnected">
            <option value="0">Filter Friends/Requests</option>
        </select>

        <button id="FriendsConnected" type="button" class="button button-magenta">Connected Friends</button>
        <button id="FriendsPending" type="button" class="button button-orange">Friend Requests</button>
    </form>

    <!--Displays content/images on page after filter-->
    <div id="container">
        <div id="userimgs" class="responsive-image"></div>
    </div>
    <div id="containerFriendsPending"></div>
    <div id="containerFriendsConnected"></div>
    <div id="container">
        <div id="badgeimgs"></div>
    </div>


    <script type="text/javascript">
        Parse.initialize("79tphN5KrDXdjJnAmehgBHgOjgE2dLGTvEPR9pEJ", "9lblofQNZlypAtveU4i4IzEpaOqtBgMcmuU1AE6Y");

    Parse.User.logIn("dave", "delvedia", {
        success: function(user) {
            console.log("Logged in!");
        }
    });


         /////////Filter One///////////////////
        function FriendsPending() {

            $('#containerFriends').empty();
            $('#containerFriendsRejected').empty();
            $('#containerFriendsRequestSent').empty();
            $('#containerFriendsConnected').empty();


            var currentUser = Parse.User.current();
            var FriendRequest = Parse.Object.extend("FriendRequest");

            var query = new Parse.Query(FriendRequest);
            query.include('toUser');
            query.include('SentTo');
            query.include("myBadge");
            query.equalTo("fromUser", currentUser);
            query.equalTo("status", "Pending");

            query.find({
                success: function(results) {
                    var friends = [];
                    for (var i = 0; i < results.length; i++) {
                        friends.push({
                            imageURL: results[i].get('toUser').get('pic'),
                            friendRequestId: results[i].id,
                            username: results[i].get('toUser').get('username'),
                            userId: results[i].get('toUser').id


                        });


                    }
                    var select = document.getElementById("FriendsPending");
                    $.each(friends, function(i, v) {
                        var opt = v.username;
                        var el = document.createElement("option");
                        el.textContent = opt;
                        el.value = opt;
                        select.appendChild(el);
                    })

                    _.each(friends, function(item) {
                        var wrapper = $('<div class="wrapper"' + ' data-friend-request-id="' + item.friendRequestId + '"' + ' data-to-user-id="' + item.userId + '"></div>');
                        wrapper.append('<img class="images responsive-image BadgeImgOutline" src="' + item.imageURL + '" />');
                        wrapper.append('<div>' + item.username + '</div>');
                        wrapper.append('<div type="button" class="button button-blue">' + 'Accept Friend' + '</div>');
                        wrapper.append('<div type="button" class="button button-yellow">' + 'Decline' + '</div>');
                        $('#containerFriendsPending').append(wrapper);
                    });

                },
                error: function(error) {
                    alert("Error: " + error.code + " " + error.message);
                }
            });

        }

         /////////Filter Two///////////////////
        function FriendsConnected() {
            $('#containerFriendsRejected').empty();
            $('#containerFriendsPending').empty();
            $('#containerFriendsRequestSent').empty();
            var currentUser = Parse.User.current();
            var FriendRequest = Parse.Object.extend("FriendRequest");

            var query = new Parse.Query(FriendRequest);
            query.include('toUser');
            query.include('SentTo');
            query.include("myBadge");
            query.equalTo("fromUser", currentUser);
            query.equalTo("status", "Connected");

            query.find({
                success: function(results) {
                    var friends = [];
                    for (var i = 0; i < results.length; i++) {
                        friends.push({
                            imageURL: results[i].get('toUser').get('pic'),
                            friendRequestId: results[i].id,
                            username: results[i].get('toUser').get('username'),
                            userId: results[i].get('toUser').id


                        });


                    }
                    var select = document.getElementById("FriendsConnected");
                    $.each(friends, function(i, v) {
                        var opt = v.username;
                        var el = document.createElement("option");
                        el.textContent = opt;
                        el.value = opt;
                        select.appendChild(el);
                    })


                    _.each(friends, function(item) {
                        var wrapper = $('<div class="wrapper"' + ' data-friend-request-id="' + item.friendRequestId + '"' + ' data-to-user-id="' + item.userId + '"></div>');
                        wrapper.append('<img class="images responsive-image BadgeImgOutline" src="' + item.imageURL + '" />');
                        wrapper.append('<div>' + item.username + '</div>');
                        $('#containerFriendsConnected').append(wrapper);
                    });

                },
                error: function(error) {
                    alert("Error: " + error.code + " " + error.message);
                }
            });
        }

         //////////////////////////Takes results from functions and adds them to div to show///////////////////////////////

        $(document).ready(function() {
            $('#FriendsPending').click(function(e) {
                FriendsPending();
            });


            $('#FriendsConnected').click(function(e) {
                FriendsConnected();
            });


        });
    </script>

筛选好友/请求
有联系的朋友
好友请求
初始化(“79TPHN5KRDXDJNAMEHGBHGOJGE2DLGTVEPR9PEJ”,“9LBLOFQNZLYPATVEU4I4IZEPAOQTBGMUUU1AE6Y”);
Parse.User.logIn(“dave”,“delvedia”{
成功:功能(用户){
console.log(“登录!”);
}
});
/////////过滤一///////////////////
函数{
$('#containerFriends').empty();
$(“#containerFriendsRejected”).empty();
$('#ContainerFriendRequestSent').empty();
$(“#containerFriendsConnected”).empty();
var currentUser=Parse.User.current();
var FriendRequest=Parse.Object.extend(“FriendRequest”);
var query=newparse.query(FriendRequest);
查询。包括(‘toUser’);
查询。包括('SentTo');
查询。包括(“myBadge”);
query.equalTo(“fromUser”,currentUser);
查询。equalTo(“状态”、“待定”);
查询.查找({
成功:功能(结果){
var-friends=[];
对于(var i=0;i
对于初学者,可以使用
.append()
appendTo()
函数将
选项添加到选择框中

因为有多个源,我可能会绑定一个类来告诉我如何过滤它。我会
    function prop1(){
       $("<option/>")
         .val('The Value')
         .html('Display Text')
         .addClass('filter-prop1')
         .appendTo('select#FriendsConnected');
    }
    function prop2(){
       $("<option/>")
         .val('The Value')
         .html('Display Text')
         .addClass('filter-prop2')
         .appendTo('select#FriendsConnected');
    }
 $("select#FriendsConnected option.filter-prop2").hide();
 $("select#FriendsConnected option.filter-prop1").show();
<!--Drop down filter box that should show each option returned from functions below-->

    <form>
        <select name="huge" class="btn-group select select-block mbl select-multiple" id="s_Friends">
            <option value="0">Filter Friends/Requests</option>
            <option value="f_connected">Connected Friends</option>
            <option value="f_requests">Friend Requests</option>
        </select>
    </form>

    <!--Displays content/images on page after filter-->
    <div id="container">
        <div id="userimgs" class="responsive-image"></div>
    </div>
    <div id="containerFriendsPending"></div>
    <div id="containerFriendsConnected"></div>
    <div id="container">
        <div id="badgeimgs"></div>
    </div>
Parse.initialize("ccccc", "xxxxx");

    Parse.User.logIn("dave", "delvedia", {
        success: function(user) {
            console.log("Logged in!");
        }
    });


         /////////Filter One///////////////////
        function FriendsPending() {

            $('#containerFriends').empty();
            $('#containerFriendsRejected').empty();
            $('#containerFriendsRequestSent').empty();
            $('#containerFriendsConnected').empty();


            var currentUser = Parse.User.current();
            var FriendRequest = Parse.Object.extend("FriendRequest");

            var query = new Parse.Query(FriendRequest);
            query.include('toUser');
            query.include('SentTo');
            query.include("myBadge");
            query.equalTo("fromUser", currentUser);
            query.equalTo("status", "Pending");

            query.find({
                success: function(results) {
                    var friends = [];
                    for (var i = 0; i < results.length; i++) {
                        friends.push({
                            imageURL: results[i].get('toUser').get('pic'),
                            friendRequestId: results[i].id,
                            username: results[i].get('toUser').get('username'),
                            userId: results[i].get('toUser').id


                        });


                    }

                    _.each(friends, function(item) {
                        var wrapper = $('<div class="wrapper"' + ' data-friend-request-id="' + item.friendRequestId + '"' + ' data-to-user-id="' + item.userId + '"></div>');
                        wrapper.append('<img class="images responsive-image BadgeImgOutline" src="' + item.imageURL + '" />');
                        wrapper.append('<div>' + item.username + '</div>');
                        wrapper.append('<div type="button" class="button button-blue">' + 'Accept Friend' + '</div>');
                        wrapper.append('<div type="button" class="button button-yellow">' + 'Decline' + '</div>');
                        $('#containerFriendsPending').append(wrapper);
                    });

                },
                error: function(error) {
                    alert("Error: " + error.code + " " + error.message);
                }
            });

        }

         /////////Filter Two///////////////////
        function FriendsConnected() {
            $('#containerFriendsRejected').empty();
            $('#containerFriendsPending').empty();
            $('#containerFriendsRequestSent').empty();
            var currentUser = Parse.User.current();
            var FriendRequest = Parse.Object.extend("FriendRequest");

            var query = new Parse.Query(FriendRequest);
            query.include('toUser');
            query.include('SentTo');
            query.include("myBadge");
            query.equalTo("fromUser", currentUser);
            query.equalTo("status", "Connected");

            query.find({
                success: function(results) {
                    var friends = [];
                    for (var i = 0; i < results.length; i++) {
                        friends.push({
                            imageURL: results[i].get('toUser').get('pic'),
                            friendRequestId: results[i].id,
                            username: results[i].get('toUser').get('username'),
                            userId: results[i].get('toUser').id


                        });


                    }

                    _.each(friends, function(item) {
                        var wrapper = $('<div class="wrapper"' + ' data-friend-request-id="' + item.friendRequestId + '"' + ' data-to-user-id="' + item.userId + '"></div>');
                        wrapper.append('<img class="images responsive-image BadgeImgOutline" src="' + item.imageURL + '" />');
                        wrapper.append('<div>' + item.username + '</div>');
                        $('#containerFriendsConnected').append(wrapper);
                    });

                },
                error: function(error) {
                    alert("Error: " + error.code + " " + error.message);
                }
            });
        }

         //////////////////////////Takes results from functions and adds them to div to show///////////////////////////////

        $(document).ready(function() {

            $('select#s_Friends').change(function(){

            var selection = $(this).val();

            if(selection=='f_connected')
            FriendsConnected();

            else if(selection=='f_requests')
            FriendsPending();

            });