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以下を使用して、ajax を使用して mysql データベースからレコードを取得しています。qty次に、ボックスにを掛けて、それぞれの行の合計を計算しますpriceeach。私が抱えている問題は、最初の選択が機能することですが、2番目の選択は機能せず、コンソールに次のエラーメッセージが表示されます。

  Uncaught ReferenceError: change is not defined on line 97

これはこの行です:

                    options += data[x]['priceeach']; 
                } // <-- This Line
                $('#priceeach1').text(options);
            });
        });

このスクリプトの:

<script type="text/javascript" charset="utf-8">
    $(document).ready(function(){
        $('#stock1').on('change', function (){
            $('#qty1').val('');
            $('#linetotal1').text('');
            var newValue1 = $.getJSON('select2.php', {stockID: $(this).val()}, function(data){
                var options = '';
                for (var x = 0; x < data.length; x++) { 
                    options += data[x]['priceeach']; 
                }
                $('#priceeach1').text(options);
            });
        });
        $('#qty1').on('keyup', function (){
            var qty1 = $("#qty1").val();
            var priceeach1 =  $("#priceeach1").html();
            var total=parseFloat(priceeach1)  * parseInt(qty1);
            $('#linetotal1').html(total);
        });

        $('#stock2').on('change', function (){
            $('#qty2').val('');
            $('#linetotal2').text('');
            var newValue2 = $.getJSON('select2.php', {stockID: $(this).val()}, function(data){
                var options = '';
                for (var x = 0; x < data.length; x++) { 
                    options += data[x]['priceeach']; 
                }
                $('#priceeach2').text(options);
            });
        });
        $('#qty2').on('keyup', function (){
            var qty2 = $("#qty2").val();
            var priceeach2 =  $("#priceeach2").html();
            var total2=parseFloat(priceeach2)  * parseInt(qty2);
            $('#linetotal2').html(total2);
        });
    });
</script>

以下は PHP/HTML です。

<select id="customer">
    <option>Please Select / Search For A Customer</option>
    <?php
        $sql = <<<SQL
            SELECT *
            FROM `customers`
            SQL;
        if(!$result = $db->query($sql)){ die('There was an error running the query [' . $db->error . ']');}
        while($row = $result->fetch_assoc()){
            if ($row['bussinessname'] == ''){$name = $row['title'].' '.$name = $row['firstname'].' '.$name = $row['surname'];}
            else {$name = $row['bussinessname'];}
            echo '<option value="'.$row['customerID'].'">'.$name.'</option>';
        }
        echo '</select>';
    ?>
<br>
<br>
<select id="vehicle">
    <option>Select A Customers Vehicle</option>
</select>
<br>
<br>
<div class="stock1">
    <select id="stock1">
        <option>Please Select / Search For Stock</option>
        <?php
            $sql2 = <<<SQL
                SELECT *
                FROM `stock`
                SQL;
            if(!$result2 = $db->query($sql2)){ die('There was an error running the query [' . $db->error . ']');}
            while($row2 = $result2->fetch_assoc()){
                $instock = $row2['numberofstock'] - $row2['numberofstocksold'];
                if ($row2['numberofstocksold'] >= $row2['numberofstock']){$stockinfo = '';}
                else {$stockinfo = $row2['make'].' '.$row2['model'].' - '.$row2['tyrewidth'].'/'.$row2['tyreprofile'].'/'.$row2['tyresize'].'/'.$row2['tyrespeed'].'/'.$row2['tyreload'].' - ('.$instock.' In Stock) - £'.$row2['priceeach'].' Each';}
                echo '<option value="'.$row2['stockID'].'">'.$stockinfo.'</option>';
            }
        ?>
    </select>   X
    <input style="width:40px;" type="text" name="qty1" id="qty1" />
    <span style="display:none;"  id="priceeach1"></span>
    - Line Total : &pound;<span id="linetotal1"></span>
</div>
<div class="stock2">
    <select id="stock2">
        <option>Please Select / Search For Stock</option>
        <?php
            $sql3 = <<<SQL
                SELECT *
                FROM `stock`
                SQL;
            if(!$result3 = $db->query($sql3)){ die('There was an error running the query [' . $db->error . ']');}
            while($row3 = $result3->fetch_assoc()){
                $instock = $row3['numberofstock'] - $row3['numberofstocksold'];
                if ($row3['numberofstocksold'] >= $row3['numberofstock']){$stockinfo = '';}
                else {$stockinfo = $row3['make'].' '.$row3['model'].' - '.$row3['tyrewidth'].'/'.$row3['tyreprofile'].'/'.$row3['tyresize'].'/'.$row3['tyrespeed'].'/'.$row3['tyreload'].' - ('.$instock.' In Stock)';}
                echo '<option value="'.$row3['stockID'].'">'.$stockinfo.'</option>';
            }
        ?>
    </select>   X
    <input style="width:40px;" type="text" name="qty2" id="qty2" />
    <span style="display:none;"  id="priceeach2"></span>  - 
    Line Total : &pound;<span id="linetotal2"></span>   
</div>
<div class="stock3">
    <select id="stock3">
        <option>Please Select / Search For Stock</option>
        <?php
            $sql4 = <<<SQL
                SELECT *
                FROM `stock`
                SQL;
            if(!$result4 = $db->query($sql4)){ die('There was an error running the query [' . $db->error . ']');}
            while($row4 = $result4->fetch_assoc()){
                $instock = $row4['numberofstock'] - $row4['numberofstocksold'];
                if ($row4['numberofstocksold'] >= $row4['numberofstock']){$stockinfo = '';}
                else {$stockinfo = $row4['make'].' '.$row4['model'].' - '.$row4['tyrewidth'].'/'.$row4['tyreprofile'].'/'.$row4['tyresize'].'/'.$row4['tyrespeed'].'/'.$row4['tyreload'].' - ('.$instock.' In Stock)';}
                echo '<option value="'.$row4['stockID'].'">'.$stockinfo.'</option>';
            }
        ?>
    </select>   X 
    <input style="width:40px;" type="text" name="qty3" id="qty3" />
    <span style="display:none;"  id="priceeach3"></span>  - 
    Line Total : &pound;<span id="linetotal3"></span>       
</div>
<div class="stock4">
    <select id="stock4">
        <option>Please Select / Search For Stock</option>
        <?php
            $sql5 = <<<SQL
                SELECT *
                FROM `stock`
                SQL;
            if(!$result5 = $db->query($sql5)){ die('There was an error running the query [' . $db->error . ']');}
            while($row5 = $result5->fetch_assoc()){
                $instock = $row5['numberofstock'] - $row5['numberofstocksold'];
                if ($row5['numberofstocksold'] >= $row5['numberofstock']){$stockinfo = '';}
                else {$stockinfo = $row5['make'].' '.$row5['model'].' - '.$row5['tyrewidth'].'/'.$row5['tyreprofile'].'/'.$row5['tyresize'].'/'.$row5['tyrespeed'].'/'.$row5['tyreload'].' - ('.$instock.' In Stock)';}
                echo '<option value="'.$row5['stockID'].'">'.$stockinfo.'</option>';
            }
        ?>
    </select>   X 
    <input style="width:40px;" type="text" name="qty4" id="qty4" />
    <span style="display:none;"  id="priceeach4"></span>  - 
    Line Total : &pound;<span id="linetotal4"></span>       
</div>
<div class="stock5">
    <select id="stock5">
        <option>Please Select / Search For Stock</option>
        <?php
            $sql6 = <<<SQL
                SELECT *
                FROM `stock`
                SQL;
            if(!$result6 = $db->query($sql6)){ die('There was an error running the query [' . $db->error . ']');}
            while($row6 = $result6->fetch_assoc()){
                $instock = $row6['numberofstock'] - $row6['numberofstocksold'];
                if ($row6['numberofstocksold'] >= $row6['numberofstock']){$stockinfo = '';}
                else {$stockinfo = $row6['make'].' '.$row6['model'].' - '.$row6['tyrewidth'].'/'.$row6['tyreprofile'].'/'.$row6['tyresize'].'/'.$row6['tyrespeed'].'/'.$row6['tyreload'].' - ('.$instock.' In Stock)';}
                echo '<option value="'.$row6['stockID'].'">'.$stockinfo.'</option>';
            }
        ?>
    </select>   X 
    <input style="width:40px;" type="text" name="qty5" id="qty5" />
    <span style="display:none;"  id="priceeach5"></span>  - 
    Line Total : &pound;<span id="linetotal5"></span>       
</div>
4

1 に答える 1

2

問題は、$('#stock1')（またはおそらく$('#stock2')）オブジェクトにメソッドがなく、要素、ボックス、および要素にchange限定されていることです。<input><textarea><select>

(ところで、コードは実際にリファクタリングする必要があります。2 つのほぼ同一の関数があり、簡単に 1 つに減らすことができます。)

次のリファクタリングされたコードの使用を検討してください。

$(document).ready(function () {

    $('select[id^="stock"]').on('change', function () {
        var index = this.id.replace('stock', '');
        $('#qty' + index).val('');
        $('#linetotal' + index).text('');
        $.getJSON('select2.php', {stockID: $(this).val()}, function (data) {
            var options = '',
                x;
            for (x = 0; x < data.length; x += 1) { 
                options += data[x].priceeach; 
            }
            $('#priceeach' + index).text(options);
        });
    });
    $('input[id^="qty"]').on('keyup', function () {
        var index = this.id.replace('qty', ''),
            qty = $(this).val(),
            priceeach =  $('#priceeach' + index).text(),
            total = parseFloat(priceeach) * parseInt(qty, 10);
        $('#linetotal' + index).text(total);
    });
});
于 2013-07-02T08:52:21.477 に答える