[英]display and value depending options of drop down menus with different values
我想将下拉菜单中选择的值提交到数据库,但是添加到数据库的值与我选择的值不同。
这是插入的记录,“ kuarter”字段值为“ kuching-01”:
但是这些是我选择的选择,其中“ kuarter”字段是“ JALAN DURIAN BURONG STAMPIN”:
如何将值“ JALAN DURIAN BURONG STAMPIN”添加到数据库而不是“ kuching-01”?
这是我的javascript:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var $options = $("#kuarter").clone(); // this will save all initial options in the second dropdown
$("#kawasan").change(function() {
var filters = [];
if ($(this).val() == "") {
$(this).find("option").each(function(index, option) {
if ($(option).val() != "")
filters.push($(option).val());
});
} else {
filters.push($(this).val())
}
$("#kuarter").html("");
$.each(filters, function(index, value) {
$options.find("option").each(function(optionIndex, option) { // a second loop that check if the option value starts with the filter value
if ($(option).val().startsWith(value))
$(option).clone().appendTo($("#kuarter"));
});
});
});
});
</script>
这是下拉菜单的HTML代码:
<tr valign="baseline">
<td nowrap="nowrap" align="right">Kawasan:</td>
<td><select name="pilih_kawasan" id="kawasan">
<option value="none">SILA PILIH</option>
<option value="kuching">KUCHING</option>
<option value="lundu">LUNDU</option>
<option value="sriaman">SRI AMAN</option>
<option value="betong">BETONG</option>
</select></td>
</tr>
<tr valign="baseline">
<td nowrap="nowrap" align="right">Kuarter:</td>
<td><select name="pilih_kuarter" id="kuarter">
<option value="none-01"></option>
<option value="kuching-01">JALAN DURIAN BURONG STAMPIN</option>
<option value="lundu-01">JALAN SEKETI</option>
<option value="sriaman-01">JALAN FOO CHOW</option>
<option value="sriaman-02">JALAN SABU</option>
<option value="betong-01">JALAN TANJUNG ASSAM</option>
</select></td>
</tr>
原因是您将所选选项的value
保存在#kuarter
,而不是显示在eg中的文本,例如,您选择的选项的值是kuching-01
:
<option value="kuching-01">JALAN DURIAN BURONG STAMPIN</option>
由于其他代码取决于值,因此您无法更改选项值以匹配所需的文本。
我们可以做的是将文本保存在隐藏的输入中,该输入将与表单一起提交。 为此,输入必须与当前选项具有相同的名称,以便您的处理代码可以识别它。
为此,我们需要:
pilih_kawasan
并将该值相加以进行处理,例如<select name="pilih_kawasan_select" id="kawasan">
pilih_kawasan
的隐藏输入以存储文本,例如: <input type="hidden" name="pilih_kawasan" id="pilih_kawasan_value" value="">
#pilih_kawasan_value
的值 (即not value )。 #kuarter
选择新值时,以及'kawasan'的值更改时(因为#kuarter
的值#kuarter
更改)。 工作片段
下面的HTML和jQuery在这里工作,运行代码段以查看其作用。
$(document).ready(function() { var $options = $("#kuarter").clone(); $("#kawasan").change(function() { var filters = []; if ($(this).val() == "") { $(this).find("option").each(function(index, option) { if ($(option).val() != "") filters.push($(option).val()); }); } else { filters.push($(this).val()) } $("#kuarter").html(""); $.each(filters, function(index, value) { $options.find("option").each(function(optionIndex, option) { if ($(option).val().startsWith(value)) { $(option).clone().appendTo($("#kuarter")); // (4.) ADDED: the #kuarter values have changed, so update the hidden input to the selected text selected_text = $("#kuarter option:selected").text(); // get the text from the selected option setKuarterValue(selected_text); // call our function to update the hidden input } }); }); }); // (4.) ADDED: Update the hidden input any time the #kuarter dropdown is changed $("#kuarter").change(function() { // get the text from the selected option in #kawasan selected_text = $("#kuarter option:selected").text(); setKuarterValue(selected_text); // call our function to update the hidden input }); }); /* (3.) function to set the values of the hidden input "#pilih_kuarter" that will be submitted to your processing code. */ function setKuarterValue(myval) { // if the value hasn't changed , no need to update if ($("#pilih_kuarter").val() == myval) return; // set the value of the hidden input with the selected text $("#pilih_kuarter").val(myval); // just for testing, so we can see the value that will be submitted - delete when its working for you console.log ("Set pilih_kuarter value = "+ myval); }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table> <tr valign="baseline"> <td nowrap="nowrap" align="right">Kawasan:</td> <td> <!-- (1.) UPDATED: Change the name of the select, as we're going to submit our hidden input using this name instead --> <select name="pilih_kawasan" id="kawasan"> <option value="none">SILA PILIH</option> <option value="kuching">KUCHING</option> <option value="lundu">LUNDU</option> <option value="sriaman">SRI AMAN</option> <option value="betong">BETONG</option> </select> </td> </tr> <tr valign="baseline"> <td nowrap="nowrap" align="right">Kuarter:</td> <td> <select name="pilih_kuarter_select" id="kuarter"> <option value="none-01"></option> <option value="kuching-01">JALAN DURIAN BURONG STAMPIN</option> <option value="lundu-01">JALAN SEKETI</option> <option value="sriaman-01">JALAN FOO CHOW</option> <option value="sriaman-02">JALAN SABU</option> <option value="betong-01">JALAN TANJUNG ASSAM</option> </select> </td> </tr> <!-- (2.) ADDED: add a new hidden input to store the required text this must have the name=pilih_kuarter so it will submit the value to you database --> <input type="hidden" name="pilih_kuarter" id="pilih_kuarter" value=""> </table>
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