javascript - 在 AngularJS 中使用过滤器更新给定的表

Question

我有一个表格，我想通过选择一个选项卡或菜单项来重新排序。

上下文:该表填充了 SQL 数据库中的所有“订单”，通过单击特定区域的选项卡，它应该仅使用该区域的订单更新表。

我能否以某种方式制作一个 IF 语句，或者一个 while 循环？

目前它在 php 中获取这样的数据(我已经在其中尝试过滤)；

<?php

header("Access-Control-Allow-Origin: *");
header("Content-Type: application/json; charset=UTF-8");
echo json_encode($data);

// creates a connection to the mysql server
require('connection.php');

$filterGeo = $filterSta = $filterNH = $filterNot = '%';

if (isset($_GET['filterGeo'])) {$filterGeo = $_GET['filterGeo'];};
if (isset($_GET['filterSta'])) {$filterSta = $_GET['filterSta'];};
if (isset($_GET['filterNH'])) {$filterNH = $_GET['filterNH'];};
if (isset($_GET['filterNot'])) {$filterNot = $_GET['filterNot'];};


$result = $conn->query("SELECT * FROM orders
    Where address LIKE '%$filterGeo%' AND status LIKE '%$filterSta%'");

$outp = "";
while($rs = $result->fetch_array(MYSQLI_ASSOC)) {
    if ($outp != "") {$outp .= ",";}
    $outp .= '{"orderID":"'  . $rs["orderID"] . '",';
    $outp .= '"customerID":"'  . $rs["customerID"] . '",';
    $outp .= '"date":"'   . $rs["date"] . '",';
    $outp .= '"address":"'. $rs["address"]  . '",';
    $outp .= '"area":"'. $rs["area"]     . '"}';
}

$outp ='{"orders":['.$outp.']}';
$outp = utf8_encode($outp);

$conn->close();
echo($outp);

//?>

JSON 是这样处理的；

var app = angular.module('Orders', []);   app.controller('getOrders', function($scope, $http) {
     $http.get("/filterOrders.php")
     .then(function (response) {$scope.orders = response.data.orders;});   });

相关的 HTML 片段:

  <div ng-app="Orders" ng-controller="getOrders">

            <ul class="nav nav-tabs">
              <li role="presentation" class="active"><a href="#">Alle</a></li>
              <li role="presentation"><a href="#">Odder</a></li>
              <li role="presentation"><a href="#">Hørning</a></li>
              <li role="presentation"><a href="#">Ry</a></li>
              <li role="presentation"><a href="#">Skanderborg</a></li>
            </ul>
          <table class="table table-condensed table-border table-striped">
            <thead align="center">
              <th>Order #</th>
              <th>Customer #</th>
              <th>Address</th>
              <th>Area</th>
              <th>Date</th>
              <th>OrderType</th>
              <th>TrashcanType</th>
              <th>Status</th>
              <th>RenoNord Invoice</th>
            </thead>
            <tbody>
              <tr ng-repeat="x in orders">
                <td>{{ x.orderID }}</td>
                <td>{{ x.customerID }}</td>
                <td>{{ x.address }}</td>
                <td>{{ x.area }}</td>
                <td>{{ x.date }}</td>
                <td>{{ x.orderType }}</td>
                <td>{{ x.trashcanType }}</td>
                <td>{{ x.status }}</td>
                <td>{{ x.renonord }}</td>

                <td class="text-right">
                  <button href="#" data-id="{{ x.orderID }}" class="btn btn-xs btn-default">Ret</button>
                  <button href="#" data-id="{{ x.orderID }}" class="btn btn-xs btn-danger">Slet</button>
                </td>

Answer 1

根据您想在何处过滤结果集(客户端或服务器端)，您有几个选择:

过滤客户端:

将 ng-click 指令添加到您的选项中。有了它，您可以设置一个范围变量，您将使用它来进行过滤。

<li role="presentation"><a ng-click="areaFilter = 'Odder'">Odder</a></li>

在 ng-repeat 中使用 filter 过滤结果:

<tr ng-repeat="x in orders | filter: {area: areaFilter}">

过滤服务器端:

在这种情况下，每次应用新过滤器时都必须向服务器发出新请求。语义相同，但在这种情况下，您将在 ng-click 上调用函数，而不是将字符串分配给变量。

<li role="presentation"><a ng-click="filter('Odder')">Odder</a></li>

Controller :

$scope.filter = function(val) {
    // create the url you want to call depending on "val"
    var url = '/filterOrders.php';
    switch (val) {
        case 'Odder':
            url += '?filterXY=Odder';
            break;
        default: break;
    }
    $http.get(url)
        .then(function (response) {
            $scope.orders = response.data.orders;
        });
    });
}