0

我还没有找到解决这个问题的方法，需要一些新的眼睛来解决这个问题。基本上，您自动完成搜索车辆，并在选择过滤器请求时发送 json 填充模型选择列表。一切正常，除非我创建一行并选择自动完成值，它只链接到第一行模型而不是附加行。我计划根据品牌对模型进行另一个过滤器（不在此示例中）。

JS：

function setAutocomplete() {
  $('#vehicle_id').val("");
  $text = jQuery(".veh_selector");
  $.each($text, function(i, val) {
    $(val).autocomplete({
      source: 'vehicles.php',
      minLength: 2,
      select: function(event, ui) {
        $('#veh_desc_id').val(ui.item.id);
        $('#vehicle_id').val(ui.item.vehicle_id);
        $.getJSON("vehicles.php?filter=" + ui.item.vehicle_id, function(jsonData) {

          $("select.model").html(""); //clear old options
          jsonData = eval(jsonData); //get json array
          for (i = 0; i < jsonData.length; i++) //iterate over all options
          {
            for (key in jsonData[i]) //get key => value
            {
              $("select.model").get(0).add(new Option(jsonData[i][key], [key]), document.all ? i : null);
            }
          }
        });
      }
    });
  });
}

var current = 0;

var addVehicleFields = function() {
  current++;
  $newVehicle = $("#searchtemplate").clone();
  $newVehicle.removeAttr("id");
  $newVehicle.removeClass("hide_element");
  $prefix = "extra" + current;
  $newVehicle.children("div").children(":input").each(function(i) {
    var $currentElem = $(this);
    $currentElem.attr("name", $prefix + $currentElem.attr("name"));
  });
  $newVehicle.appendTo("#vehiclesField");
  $('.remove-this').show('fast');
  $('#remove-me').removeAttr('disabled');
  setAutocomplete();
}

$(document).ready(function() {
  setAutocomplete();
  $("#addVehicle").live("click", addVehicleFields);
  $('.remove-this').live('click', function() {
    $(this).parent().remove();
  });
});

html

<div id="models-makes">
  <fieldset id="vehiclesField">
  <label>Search Vehicles</label>
  <div class="vehicle"></div>
</div>
</fieldset>
<div>
  <div class="model-make original">
      <label for="veh_desc"></label>
      <input type="hidden" class="veh_selector" id="veh" name="veh" size="30"/>
    </p>
    <input type="hidden" id="veh_desc_id" name="veh_desc_id" />
    <div class="vehicle hide_element" id="searchtemplate">
      <input class="veh_selector" id="veh" name="_veh" size="30"/>
      <select class="model empty">
        <option>Models</option>
      </select>
      <select class="make empty">
        <option>Makes</option>
      </select>
      <input name="remove-this" class="remove-this" value="Remove" type="button">
    </div>
  </div>
</div>
<div>
  <input type="button" id="addVehicle" value="Add A Vehicle">
  <input name="reset" id="reset" value="Reset" type="reset">
</div>
4

1 回答 1

0

我只在测试服务器上没有任何地方，因为真的没有什么可放的。下面是车辆的 sql ex 和两个文件：getvehicles.php 和 makevehicles.php。也是一个更新的js。谢谢

SQL

CREATE TABLE `vehicles` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`vehicle_id` int(11) DEFAULT NULL,
`veh_desc` text CHARACTER SET latin1,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

INSERT INTO `vehicles` VALUES ('1', '1', 'Car');
INSERT INTO `vehicles` VALUES ('2', '2', 'Minivan');
INSERT INTO `vehicles` VALUES ('3', '3', 'Truck');

CREATE TABLE `makevehicles` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`vehicle_id` int(11) NOT NULL DEFAULT '0',
`make` text CHARACTER SET latin1,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;

INSERT INTO `makevehicles` VALUES ('1', '1', 'Acura');
INSERT INTO `makevehicles` VALUES ('2', '1', 'Audi');
INSERT INTO `makevehicles` VALUES ('3', '1', 'BMW');
INSERT INTO `makevehicles` VALUES ('4', '2', 'Dodge');
INSERT INTO `makevehicles` VALUES ('5', '3', 'Chevy');

getvehicles.php

<?php  
  $username = "root";  
  $password = "";  
  $hostname = "localhost";  
  $dbh = mysql_connect($hostname, $username, $password) or die("Unable to connect   
  to MySQL");  
  $selected = mysql_select_db("DATABASE_NAME",$dbh) or die("Could not connect");  

  $return_arr = array();

$fetch = mysql_query("SELECT * FROM vehicles where veh_desc like '%" . mysql_real_escape_string($_GET["term"]) . "%'"); 

/* Retrieve and store in array the results of the query.*/

while ($row = mysql_fetch_array($fetch, MYSQL_ASSOC)) {
    $row_array['id'] = $row['id'];
    $row_array['value'] = $row['veh_desc'];
    $row_array['vehicle_id'] = $row['vehicle_id'];

    array_push($return_arr,$row_array);
}
  echo json_encode($return_arr);  
?>

makevehicles.php

<?php  
  $username = "root";  
  $password = "";  
  $hostname = "localhost";  
  $dbh = mysql_connect($hostname, $username, $password) or die("Unable to connect   
  to MySQL");  
  $selected = mysql_select_db("DATABASE_NAME",$dbh) or die("Could not connect");  
  $filter = strtolower($_GET["filter"]);

$query =
  "SELECT vehicle_id, make FROM makevehicles WHERE vehicle_id='$filter'";  
  $result=mysql_query($query);     
  $outArray = array(); 
  if ($result) { 
  while ($row = mysql_fetch_assoc($result)) $outArray[] = $row; 
} 
  echo json_encode($outArray);  
?>

更新了 JS。我所做的只是更改上述两个文件的自动完成源和 getJSON url。我的剧本很复杂，所以只把这两个拿出来。让我知道这是否有帮助。顺便说一句：我修复了 html，但仍然不行。这使用 jqueryui。如果你也需要，请告诉我。

function setAutocomplete() {
$('#vehicle_id').val("");
$text = jQuery(".veh_selector");
$.each($text, function(i, val) {
$(val).autocomplete({
  source: 'getvehicles.php',
  minLength: 2,
  select: function(event, ui) {
    $('#veh_desc_id').val(ui.item.id);
    $('#vehicle_id').val(ui.item.vehicle_id);
    $.getJSON("makevehicles.php?filter=" + ui.item.vehicle_id, function(jsonData) {

      $("select.model").html(""); //clear old options
      jsonData = eval(jsonData); //get json array
      for (i = 0; i < jsonData.length; i++) //iterate over all options
      {
        for (key in jsonData[i]) //get key => value
        {
          $("select.model").get(0).add(new Option(jsonData[i][key], [key]), document.all ? i : null);
           }
      }
      });
     }
   });
  });
 }

var current = 0;

var addVehicleFields = function() {
current++;
$newVehicle = $("#searchtemplate").clone();
$newVehicle.removeAttr("id");
$newVehicle.removeClass("hide_element");
$prefix = "extra" + current;
$newVehicle.children("div").children(":input").each(function(i) {
var $currentElem = $(this);
$currentElem.attr("name", $prefix + $currentElem.attr("name"));
 });
 $newVehicle.appendTo("#vehiclesField");
 $('.remove-this').show('fast');
 $('#remove-me').removeAttr('disabled');
 setAutocomplete();
}

$(document).ready(function() {
setAutocomplete();
$("#addVehicle").live("click", addVehicleFields);
$('.remove-this').live('click', function() {
$(this).parent().remove();
   });
});
于 2011-08-04T21:31:44.310 回答