更有效的方式将数据从php发送到js

时间：2016-04-21 10:13:10

标签： php jquery json ajax vtigercrm

我有一个包含表单的小部件。我的目标是当按下提交按钮时，一些数据会被发送到php，这将运行一个函数来获取db的数据。我需要js文件中的数据所以现在我将数据jsonify并将其放入名为data.json的文件中。从该文件中我使用jquery.ajax（）获取数据。

我的问题是：我怎样才能提高效率呢？

.PHP 

<?php

chdir('/var/www/html/vtigercrm');
require_once('include/utils/utils.php');

if(isset($_POST['id']) && !empty($_POST['id'])){
    $filterdData = getChartData($_POST['id'], $_POST['maxAmount'], $_POST['minAmount']);

    $file = fopen("/var/www/html/vtigercrm/include/data.json", "w");
    fwrite($file, json_encode($filterdData));
    fclose($file);
}

function getChartData($product_id, $maxAmount=NULL, $minAmount=NULL){
    global $adb;

    $maxAmountQuery = "";
    $minAmountQuery = "";

    if(!is_null($maxAmount) && $maxAmount != ""){
        $maxAmountQuery = " AND i.quantity <= " . $maxAmount;
    }
    if(!is_null($minAmount) && $minAmount != ""){
        $minAmountQuery = " AND i.quantity >= " . $minAmount;
    }

    $sales = $adb->run_query_allrecords("SELECT c.modifiedtime, i.quantity, i.listprice, i.discount_percent, i.discount_amount, CONCAT(q.quote_no, ' ', q.subject) AS quotename " .
                        "FROM vtiger_inventoryproductrel i " .
                        "INNER JOIN vtiger_crmentity c ON c.crmid = i.id " .
                        "INNER JOIN vtiger_quotes q ON q.quoteid = i.id " .
                        "WHERE q.quotestage = 'Delivered' AND i.productid = " . $product_id .
                        $maxAmountQuery . $minAmountQuery .
                        " ORDER BY c.modifiedtime ASC");

    //Calculate price after discount
    $salesCalculated = [];
    for($i = 0; $i < count($sales); $i++){
        $tmpdate = explode(" ", $sales[$i][0]);

        $salesCalculated[$i][0] = $tmpdate[0];
        $salesCalculated[$i][1] = $sales[$i][1];

        if($sales[$i][3] == "" && $sales[$i][4] == ""){
            $salesCalculated[$i][2] = $sales[$i][2] * 1;
        }elseif($sales[$i][3] == ""){
            $salesCalculated[$i][2] = $sales[$i][2] - ($sales[$i][4] / $sales[$i][1]);
        }elseif($sales[$i][4] == ""){
            $salesCalculated[$i][2] = $sales[$i][2] - ($sales[$i][2] / 100 * $sales[$i][3]);
        }

        $salesCalculated[$i][3] = $sales[$i][5];
    }

    //Add element for every item
    $count = 0;
    $salesScatter = [];
    for($i = 0; $i < count($salesCalculated); $i++){
        for($j = 0; $j < $salesCalculated[$i][1]; $j++){
            $salesScatter[$count] = [];
            $salesScatter[$count][0] = $salesCalculated[$i][0];
            $salesScatter[$count][1] = $salesCalculated[$i][2];
            $salesScatter[$count][2] = $salesCalculated[$i][3];
            $count++;
        }
    }

    //Get average and split date
    $count = 0;
    $mydata = [];
    for($i = 0; $i < count($salesScatter); $i++){
        $sum = 0;
        $num = 0;

        for($j = 0; $j < count($salesScatter); $j++){
            if($salesScatter[$i][0] == $salesScatter[$j][0]){
                $sum += $salesScatter[$j][1];
                $num++;
            }
        }

        $mydata[$count] = [];

        $mydata[$count][0] = explode("-", $salesScatter[$i][0]);
        $mydata[$count][1] = $salesScatter[$i][1];
        $mydata[$count][2] = $sum / $num;
        $mydata[$count][3] = $salesScatter[$i][2];
        $count++;
    }

    return $mydata;
}

function getProductSales($product_id){
    global $adb;

    $mydata = getChartData($product_id);

    $file = fopen("/var/www/html/vtigercrm/include/data.json", "w");
    fwrite($file, json_encode($mydata));
    fclose($file);

    //Data to send to Smarty
    $highest = 0;
    $average = 0;
    $lowest = $mydata[0][1];

    for($i = 0; $i < count($mydata); $i++){
        if($mydata[$i][1] > $highest){
            $highest = $mydata[$i][1];
        }

        $average += $mydata[$i][1];

        if($mydata[$i][1] < $lowest){
            $lowest = $mydata[$i][1];
        }
    }
    $average /= count($mydata);

    $product = $adb->run_query_record("SELECT CONCAT(product_no, ' (', productname, ')'), unit_price " .
                            "FROM vtiger_products WHERE productid = " . $product_id);

    $product_details = [ 'name'=>$product[0], 'unit'=>$product[1], 'highest'=>$highest, 'average'=>$average, 'lowest'=>$lowest];

    return $product_details;
}
 ?>

.tpl 

{strip}
<script>
    $(function () {
        $('form').on('submit', function (e) {

            e.preventDefault();

            $.ajax({
                type: 'post',
                url: 'include/getProductSales.php',
                data: { id: {php}echo $_GET['record'];{/php} ,
                    maxAmount:$("#maxAmount").val(), 
                    minAmount:$("#minAmount").val() 
                },
                complete: function(){
                    drawChart();
                }
            });
        });
    });
</script>

<script src="resources/priceChart.js"></script>

<form>
    <table class="table table-bordered equalSplit detailview-table">
        <thead>
            <tr>
                <th class="blockHeader" colspan="4">
                    <img class="cursorPointer alignMiddle blockToggle  hide" src="layouts/vlayout/skins/alphagrey/images/arrowRight.png" data-mode="hide" data-id="31">
                    <img style="display: inline;" class="cursorPointer alignMiddle blockToggle" src="layouts/vlayout/skins/alphagrey/images/arrowDown.png" data-mode="show" data-id="31">
                    Details
                </th>    
            </tr>
        </thead>
        <tbody>
            <tr>
                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Product</label>
                </td>
                <td class="fieldValue medium">{$PRODUCT['name']}</td>

                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">List Price</label>
                </td>
                <td class="fieldValue medium">{$PRODUCT['unit']}</td>
            </tr>

            <tr>
                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Highest Price</label>
                </td>
                <td class="fieldValue medium">{$PRODUCT['highest']}</td>

                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Max. Amount</label>
                </td>
                <td class="fieldValue medium"><input type="text" name="maxAmount" id="maxAmount"></td>
            </tr>

            <tr>
                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Average Price</label>
                </td>
                <td class="fieldValue medium">{$PRODUCT['average']}</td>

                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Min. Amount</label>
                </td>
                <td class="fieldValue medium"><input type="text" name="minAmount" id="minAmount"></td>
            </tr>

            <tr>
                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px">Lowest Price</label>
                </td>
                <td class="fieldValue medium">{$PRODUCT['lowest']}</td>

                <td class="fieldLabel medium">
                    <label class="muted pull-right marginRight10px"></label>
                </td>
                <td class="fieldValue medium"><input name="submit" type="submit" value="Filter"></td>
            </tr>
        </tbody>
    </table>
</form>

<style>
    #chart_div{
        margin: 20px 0px;
        background-color: white;
        min-height: 450px;
        -webkit-box-shadow: 4px 4px 15px 0px rgba(50, 50, 50, 0.3);
        -moz-box-shadow:    4px 4px 15px 0px rgba(50, 50, 50, 0.3);
        box-shadow:         4px 4px 15px 0px rgba(50, 50, 50, 0.3);
    }

</style>

<div id="chart_div" ></div>
{/strip}

的.js 

    google.charts.setOnLoadCallback(drawChart);

//check window size
if (document.addEventListener)
{
    window.addEventListener("resize", drawChart);
}
else if (document.attachEvent)
{
    window.attachEvent("onresize", drawChart);
}
else
{
    window.resize = drawChart;
}

function drawChart() {
    var jsonData = $.ajax({
        url: "include/getChartdata.php",
        dataType: "json",
        async: false
    }).responseText;

    var mydata = $.parseJSON(jsonData);

    console.log(mydata);

    var data = new google.visualization.DataTable();
    data.addColumn("datetime", "Date");
    data.addColumn("number", "Price");
    data.addColumn({type : "string", role : "tooltip"});

    data.addColumn("number", "Price (Average)");
    data.addColumn({type : "string", role : "tooltip"});

    var s = mydata.length;

    if(s == 0){
        alert("There is no data in the range you selected. Please select another range.");
    }

    for(var i = 0; i < s; i++ ){
        data.addRow([new Date(mydata[i][0][0], mydata[i][0][1]-1, mydata[i][0][2]), mydata[i][1], mydata[i][3] + " " + mydata[i][1], mydata[i][2], 'Average of : ' + mydata[i][2]]);
    }

    var min = new Date(mydata[0][0][0], mydata[0][0][1]-1, mydata[0][0][2]);
    min.setDate(min.getDate() - 7);
    var max = new Date(mydata[s-1][0][0], mydata[s-1][0][1]-1, mydata[s-1][0][2]);
    max.setDate(max.getDate() + 7);

    var options = {
        chartArea:{width:"80%",height:"70%"},
        hAxis: {
            title: "Date",
            viewWindow: {
                min: min,
                max: max
            },
            gridlines: {
                count: -1,
                units: {
                    days: {
                        format: ["MMM dd"]
                    },
                }
            },
        },
        vAxis: {
            title: "Price",
            minValue: 0
        },
        legend: "none",
        series: {
            0: {
                pointSize: 10,
                dataOpacity: 0.6,
                pointShape: "diamond"
            },
            1: {
                lineWidth: 2,
                color: "#509C49",
                pointSize: 2
            }
        }
    };

    var chart = new google.visualization.ScatterChart(document.getElementById("chart_div"));
    chart.draw(data, options);
}

1 个答案:

答案 0 :(得分：0)

为什么要保存此文件？将$ _POST更改为$ _GET并使您的URL和用户输入发送参数到PHP。然后PHP运行查询以从数据库获取数据，通过JSON对其进行编码并返回给用户，不需要保存到文件中。我看到你正在使用jQuery，所以$ .getJSON应该对你有用。你正在写你不需要的东西。我赶时间，如果今晚需要，我会更好地解释。

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