我想用下拉选择框构建一个ajax searc过滤器。 我会努力尽可能地清楚。
我有一个类型学模型和控制器。类型学有
id |标题|描述| item_id | condition_id | category_id | condition_id |价
其中 id 是主键， item_id，condition_id，category_id，condition_id 是外键。
因此，当加载类型学索引页面时，它会显示所有类型的列表。
搜索表格如下：
<form name="search_form" id="search_form">
<li><p>tipologia</p>
<?php
echo "<select name=\"typology_categories\" class=\"select_filter\" >";
echo "<option value=''>All</option>";
foreach ($typologyCategories as $typologyCategory):
$category_id = $typologyCategory['TypologyCategory']['id'];
$category_name = $typologyCategory['TypologyCategory']['name'];
echo "<option value='{$category_id}'>{$category_name}</option>";
endforeach;
echo "</select>";
?>
</li>
<li><p>localita</p>
<?php
echo "<select name=\"item_locations\" class=\"select_filter\">";
echo "<option value=''>All</option>";
foreach ($itemLocations as $itemLocation):
$item_id = $itemLocation['ItemLocation']['id'];
$item_name = $itemLocation['ItemLocation']['name'];
echo "<option value='{$item_id}'>{$item_name}</option>";
endforeach;
echo "</select>";
?>
</li>
<li><p>prezzo</p>
<select name="typology_price" class="select_filter">
<option value="">All</option>
<option value="1">0 - 1,000</option>
<option value="2">1,000 - 5,000</option>
<option value="3">5,000 - 50,000</option>
<option value="4">50,000 - 100,000</option>
<option value="5">100,000 - 500,000</option>
<option value="6">500,000 - 1,000,000</option>
<option value="7">more then 1,000,000</option>
</select>
</li>
<li><p>stato</p>
<?php
echo "<select name=\"typology_conditions\" class=\"select_filter\">";
echo "<option value=''>All</option>";
foreach($typologyConditions as $typologyCondition):
$condition_id = $typologyCondition['TypologyCondition']['id'];
$condition_name = $typologyCondition['TypologyCondition']['name'];
echo "<option value='{$condition_id}'>{$condition_name}</option>";
endforeach;
echo "</select>";
?>
</li>
</form>
ajax调用是：
<!-- HERE IS THE SEARCH FILTER -->
<script type="text/javascript" >
$(document).ready(function () {
$('.select_filter').bind("change keyup input",function() {
$.ajax({
type: "POST",
url: "search.php", // This one should sent data to index action of the typology controller for processing
data: $("#search_form").serialize(),
// You will get all the select data..
success:function(data){
$("#projects").html(data);
}
});
});
});
</script>
类型控制器是这样的： 索引行动：
/**
* index method
*
* @return void
*/
public function index() {
$this->set('title_for_layout', 'CESI');
$this->layout='Homepage';
// Typology Query
$typologies = $this->Typology->find('all', array('recursive'=>-1, 'order' => array('Typology.' . $this->Typology->primaryKey . ' DESC')));
$this->set('typologies', $typologies);
// Typology Category Query
$typologyCategories = $this->TypologyCategory->find('all', array('recursive'=>-1));
$this->set('typologyCategories', $typologyCategories);
// Typology Condition Query
$typologyConditions = $this->TypologyCondition->find('all', array('recursive'=>-1));
$this->set('typologyConditions', $typologyConditions);
// Item Query
$items = $this->Item->find('all',array('recursive'=>-1));
$this->set('items', $items);
// Item Location Query
$itemLocations = $this->ItemLocation->find('all', array('recursive'=>-1));
$this->set('itemLocations', $itemLocations);
// Slider Query
$sliders = $this->Slider->find('all', array('recursive'=>-1));
$this->set('sliders', $sliders);
}
所以我想用于我构建的搜索的查询是这样的：
<?php
/* Query for the Typology*/
$queryTypologies = "SELECT * ";
$queryTypologies .= "FROM typologies";
$queryTypologies .= " WHERE 1=1 ";
if (isset($_POST['typology_categories']) && !empty($_POST['typology_categories']) && $_POST['typology_categories']!='') {
$queryTypologies .= " AND typology_category_id = (SELECT id FROM typology_categories WHERE id ='".trim(mysql_prep($_POST['typology_categories']))."' LIMIT 1)";
}
if (trim($_POST["item_locations"])!='' && !empty($_POST['item_locations'])) {
$queryTypologies .= " AND item_id = (SELECT id FROM items WHERE item_location_id ='".trim(mysql_prep($_POST['item_locations']))."' LIMIT 1)"; //'".trim(mysql_prep($_POST['item_locations']))."'
}
// value="1" 0 - 1,000
// value="2" 1,000 - 5,000
// value="3" 5,000 - 50,000
// value="4" 50,000 - 100,000
// value="5" 100,000 - 500,000
// value="6" 500,000 - 1,000,000
// value="7" more then - 1,000,000
if (trim($_POST["typology_price"])!='' && !empty($_POST['typology_price']) && $_POST['typology_price']!='') {
if (trim($_POST["typology_price"]) == 1) {
$queryTypologies .= " AND price <= 1000";
}
if (trim($_POST["typology_price"]) == 2) {
$queryTypologies .= " AND price BETWEEN 1001 AND 5000";
}
if (trim($_POST["typology_price"]) == 3) {
$queryTypologies .= " AND price BETWEEN 5001 AND 50000";
}
if (trim($_POST["typology_price"]) == 4) {
$queryTypologies .= " AND price BETWEEN 50001 AND 100000";
}
if (trim($_POST["typology_price"]) == 5) {
$queryTypologies .= " AND price BETWEEN 100001 AND 500000";
}
if (trim($_POST["typology_price"]) == 6) {
$queryTypologies .= " AND price BETWEEN 500001 AND 1000000";
}
if (trim($_POST["typology_price"]) == 7) {
$queryTypologies .= " AND price > 1000000";
}
}
if (trim($_POST["typology_conditions"])!='' && !empty($_POST['typology_conditions']) && $_POST['typology_conditions']!='') {
$queryTypologies .= " AND typology_condition_id = '".trim(mysql_prep($_POST['typology_conditions']))."' ";
}
$typologies = mysql_query($queryTypologies) or die (mysql_error());
$numrows = mysql_num_rows($typologies);
if($numrows != 0){
$result ="";
while($rowTypologies= mysql_fetch_assoc($typologies)){
$id = $rowTypologies['id'];
$item_id = $rowTypologies['item_id'];
$title = htmlentities($rowTypologies['title'], ENT_COMPAT, "UTF-8");
$description = htmlentities($rowTypologies['description'], ENT_COMPAT, "UTF-8");
$thumbnail = htmlentities($rowTypologies['thumbnail'], ENT_COMPAT, "UTF-8");
$price = htmlentities($rowTypologies['price'], ENT_COMPAT, "UTF-8");
$typology_category_id = htmlentities($rowTypologies['typology_category_id'], ENT_COMPAT, "UTF-8");
$typology_condition_id = htmlentities($rowTypologies['typology_condition_id'], ENT_COMPAT, "UTF-8");
if (strlen($description)>303) {
$short_description = substr($description, 0, 300);
$description = $short_description."...";
}
$first = base64_encode($item_id);
$typologyThumbnails = "admin/app/webroot/img/uploads/typology/thumbnails/" . $thumbnail;
$result .= "<div class=\"item_shadow\">";
$result .= "<div class=\"item\" style=\"background-image:url({$typologyThumbnails});\">";
$result .= "<div class=\"item-content\">";
$result .= "<div class=\"item-top-content\">";
$result .= "<div class=\"item-top-content-inner\">";
$result .= "<div class=\"item-top-title\">";
$result .= "<h4>{$title}</h4>";
$result .= "</div>";
$result .= "</div>" ;
$result .= "</div>";
$result .= "<div class=\"item-add-content\">";
$result .= "<div class=\"item-add-content-inner\">";
$result .= "<div class=\"description-inner\">";
$result .= "<p>{$description}</p>";
$result .= "</div>";
$result .= "<div class=\"read-more-inner\">";
$result .= "<a href=\"new.php?id=$first\">maggiori informazioni <img src=\"img/elenco.png\"/></a>";
$result .= "</div>";
$result .= "</div>";
$result .= "</div>";
$result .= "</div>";
$result .= "</div>";
$result .= "</div>";
}
echo $result;
} else {
echo "No Result Found in Database.";
}
?>
我知道这是有效的，因为首先我在原始的PHP编码上构建它，你可以自己看到它，它工作完美但现在我想在cakephp上实现它。我还没有找到办法。
任何帮助都会得到很多帮助！
提前完成
答案 0 :(得分：1)
正如我通过教程和Cakephp Cook Book搜索的那样。我达到的最好的骚动是：
首先：阻止aJax进行搜索的是安全组件。由于cakephp中的Forms生成一个唯一的令牌。每次提交它应该是一个不同的，所以因为我使用ajax它产生错误。所以我禁用了
public function beforeFilter() {
parent::beforeFilter();
// Controller spesific beforeFilter
$this->Auth->allow('search');
if ($this->action == 'search') {
$this->Security->validatePost = false;
$this->Security->csrfCheck = false;
if (!$this->RequestHandler->isAjax()) {
$this->Security->blackHole($this, 'You are not authorized to process this request!');
$this->redirect(null, 401, true);
}
}
}
然后我使用了查询（）; cakephp的方法，因为我的查询很复杂，并且它也使用了连接和条件。所以search（）函数如下。
应用程序/控制器/ ControllerName
/**
* aJax search method
*
* @return void
*/
public function search() {
$this->autoRender = false;
if ($this->request->is('post')) {
if(!empty($this->data)){
if ($this->request->is('ajax')) {
/* Query for the Typology*/
$queryTypologies =" SELECT *";
$queryTypologies .=" FROM typologies AS Typology";
$queryTypologies .=" LEFT JOIN items as Item";
$queryTypologies .=" ON Item.id = Typology.item_id";
$queryTypologies .=" WHERE Item.published=1 AND Typology.published=1";
if (isset($this->data['Typology']['typology_categories']) && !empty($this->data['Typology']['typology_categories']) && $this->data['Typology']['typology_categories']!='') {
$queryTypologies .= " AND Typology.typology_category_id ='".$this->request->data['Typology']['typology_categories']."'";
}
if (trim($this->data['Typology']['item_locations'])!='' && !empty($this->data['Typology']['item_locations']) && $this->request->data['Typology']['item_locations']!='') {
$queryTypologies .= " AND Typology.item_id=(SELECT id FROM items AS Item WHERE Item.item_location_id='".$this->request->data['Typology']['item_locations']."' LIMIT 1)";
}
if (trim($this->request->data['Typology']['typology_price'])!='' && !empty($this->request->data['Typology']['typology_price']) && $this->request->data['Typology']['typology_price']!='') {
if (trim($this->request->data['Typology']['typology_price']) == 1) {
$queryTypologies .= " AND Typology.price <= 1000";
}
if (trim($this->request->data['Typology']['typology_price']) == 2) {
$queryTypologies .= " AND Typology.price BETWEEN 1001 AND 5000";
}
if (trim($this->request->data['Typology']['typology_price']) == 3) {
$queryTypologies .= " AND Typology.price BETWEEN 5001 AND 50000";
}
if (trim($this->request->data['Typology']['typology_price']) == 4) {
$queryTypologies .= " AND Typology.price BETWEEN 50001 AND 100000";
}
if (trim($this->request->data['Typology']['typology_price']) == 5) {
$queryTypologies .= " AND Typology.price BETWEEN 100001 AND 500000";
}
if (trim($this->request->data['Typology']['typology_price']) == 6) {
$queryTypologies .= " AND Typology.price BETWEEN 500001 AND 1000000";
}
if (trim($this->request->data['Typology']['typology_price']) == 7) {
$queryTypologies .= " AND Typology.price > 1000000";
}
}
if (trim($this->data['Typology']['typology_conditions'])!='' && !empty($this->data['Typology']['typology_conditions']) && $this->data['Typology']['typology_conditions']!='') {
$queryTypologies .= " AND Typology.typology_condition_id='".$this->request->data['Typology']['typology_conditions']."'";
}
$queryTypologies .=" ORDER BY Typology.id DESC";
$typologies = $this->Typology->query($queryTypologies);
$this->set('typologies', $typologies);
/* debug($this->data); // This is used for development purposes ONLY! */
if($this->RequestHandler->isAjax()){
$this->render('search', 'ajax');
}
}
}
}
}
在View中我使用了这个Ajax：
<!-- HERE IS THE SEARCH FILTER -->
<script type="text/javascript" >
//<![CDATA[
$(document).ready(function () {
$('.select_filter').bind('change keyup input',function(event) {
$('html,body').animate({ scrollTop: $("#work").offset().top}, "slow");
var formData = $('#search_form').serialize();
$.ajax({
async:true,
data: formData, // You will get all the select data..
dataType:'html',
success:function(data){
$("#projects").html(data);
},
type: 'POST',
url:'<?php echo Router::Url(array('controller' => 'typologies','admin' => false, 'action' => 'search'), true); ?>'
});
event.preventDefault();
return false;
});
});
//]]>
</script>
这对我来说很有魅力。随意使用它。我希望它对任何人都很方便。
答案 1 :(得分：0)
我认为您可以正常执行查找，就像您在index()页面上所做的那样。
似乎您在将ajax响应返回给客户端时遇到问题。
为此，您可以使用json views，这样您就可以在控制器上进行搜索（在search()方法中）和视图中的渲染，并将其作为ajax响应返回，而不是与原生PHP代码中的所有内容都在同一个地方。
请查看此链接了解如何使用它：http://book.cakephp.org/2.0/en/views/json-and-xml-views.html#using-a-data-view-with-view-files
答案 2 :(得分：0)
public function beforeFilter() {
parent::beforeFilter();
// Controller spesific beforeFilter
$this->Auth->allow('search');
if ($this->action == 'search') {
$this->Security->validatePost = false;
$this->Security->csrfCheck = false;
if (!$this->RequestHandler->isAjax()) {
$this->Security->blackHole($this, 'You are not authorized to process this request!');
$this->redirect(null, 401, true);
}
}
}
函数对于使用CakePHP 2的代码有用，它有一个带有backgroud运行时的父函数。