实现高级搜索功能。

application/default/controllers/DataController.php

@@ -397,33 +397,29 @@ class DataController extends Zend_Controller_Action
 		$this->view->addHelperPath('helper','Zend_View_Helper_');
     	$form=new SearchForm();
     	$this->view->form=$form;
-    	$form->submit->setLabel('快速搜索');
+    	//$form->submit->setLabel('快速搜索');
-    	if ($this->_request->isPost()) {
+    	$key=$this->_request->getParam('q');
-    		$formData=$this->_request->getPost();
+    	if (!empty($key)) {
-    		include_once("bcspamblock.php");
+    		//$formData=$this->_request->getPost();
-    		if (bcspamblock_verify() && $form->isValid($formData)) {
+    		//include_once("bcspamblock.php");
-    			$page=@(int)$formData['page']; 
+    		//if ($form->isValid($formData)) {
+    			$page=@(int)$this->_request->getParam('page');
     			if (empty($page)) $page=1;
     			$limit=10;
     			$offset=$limit*($page-1);
-    			$key=$formData['q'];
     			if (!empty($key)) {
     				$md=new MetadataTable();
     				$db=$md->getAdapter();
-		    		$sql=$db->quoteInto('select count(*) from metadata where title ilike ? or description ilike ?','%'.$key.'%','%'.$key.'%');
+		    		$sql=$db->quoteInto('select count(*) from metadata where title ilike ? or description ilike ?','%'.$key.'%');
     				$state=$db->query($sql);
     				$row=$state->fetchAll();
     				$sum=$row[0]['count'];
     				$select=$db->select();
-    				$select->from('metadata','*')->where('title ilike ? or description ilike ?','%'.$key.'%','%'.$key.'%')->order('id desc')->limit($limit,$offset);
+    				$select->from('metadata','*')->where('title ilike ? or description ilike ?','%'.$key.'%')->order('id desc')->limit($limit,$offset);
     				$this->view->metadata = $db->fetchAll($select);
     				$this->view->page=new Pagination($sum,$page);
     				$this->view->key=$key;    
     			}
-
-    		}
-    	} else {
-    	
     	}
     }
     /*
@@ -431,25 +427,44 @@ class DataController extends Zend_Controller_Action
     */
     function advancesearchAction()
     {
+		$this->view->addHelperPath('helper','Zend_View_Helper_');
+    	$form=new SearchForm();
+    	$this->view->form=$form;
+
     	$md=new MetadataTable();
     	$db=$md->getAdapter();
     	$page=(int)$this->_request->getParam('page');  
     	if (empty($page)) $page=1;  	
     	$limit=10;
     	$offset=$limit*($page-1);    	
-    	$key=$this->_request->getParam('key');
+    	$key=$this->_request->getParam('q');
-    	$searchtype=$this->_request->getParam('type');
+    	$n=(int)$this->_request->getParam('n');
+    	$s=(int)$this->_request->getParam('s');
+    	$e=(int)$this->_request->getParam('e');
+    	$w=(int)$this->_request->getParam('w');
+    	if (!(empty($n) && empty($key))) { 
+    	if (empty($n)) $n=90;
+    	if (empty($s)) $s=-90;
+    	if (empty($e)) $e=180;
+    	if (empty($w)) $w=-180;
+    	$start=$this->_request->getParam('start');
+    	$end=$this->_request->getParam('end');
     	if (!empty($key)) {     		
-    		$sql=$db->quoteInto('select count(*) from metadata where title ilike ? or description ilike ?','%'.$key.'%','%'.$key.'%');
+    		$sql='select count(*) from metadata where east<? and west>? and north<? and south>? and (title ilike ? or description ilike ?)';
-    		$state=$db->query($sql);
+    		$row=$db->fetchAll($sql,array($e,$w,$n,$s,'%'.$key.'%','%'.$key.'%'));
-    		$row=$state->fetchAll();
+    	} 	else {
+    		$sql='select count(*) from metadata where east<? and west>? and north<? and south>?';
+    		$row=$db->fetchAll($sql,array($e,$w,$n,$s));
+    	}
     		$sum=$row[0]['count'];
     		$select=$db->select();
-    		$select->from('metadata','*')->where('title ilike ? or description ilike ?','%'.$key.'%','%'.$key.'%')->order('id desc')->limit($limit,$offset);
+    		$select->from('metadata','*')->where('east<?',$e)->where('west>?',$w)->where('north<?',$n)->where('south>?',$s);
+    		if (!empty($key))	$select->where('(title ilike ? or description ilike ?)','%'.$key.'%');
+    		$select->order('id desc')->limit($limit,$offset);
     		$this->view->metadata = $db->fetchAll($select);
     		$this->view->page=new Pagination($sum,$page);
     		$this->view->key=$key;
-    	}    
+    		}    
     }
     /*
     * 根据id或uuid来查看元数据

application/default/views/scripts/data/advancesearch.phtml

@@ -0,0 +1,108 @@
+<?php
+$this->headTitle($this->config->title->site);
+$this->headTitle($this->config->title->data);
+
+$this->headTitle('高级搜索');
+if (!empty($this->codename)) $this->headTitle($this->codename);
+$this->headTitle()->setSeparator(' - ');
+$this->headLink()->appendStylesheet('/css/metadata.css');
+$this->headLink()->appendStylesheet('/css/search.css');
+$this->breadcrumb('<a href="/">首页</a>');
+$this->breadcrumb('<a href="/data">'.$this->config->title->data.'</a>');
+$this->breadcrumb('高级搜索');
+$this->breadcrumb()->setSeparator(' > ');
+?>
+<div id='tools'>
+<?= $this->partial('data/tools.phtml'); ?>
+</div>
+<?php echo $this->form; ?>
+<a href="/data/advancesearch">高级搜索</a>
+<?php if (!empty($this->metadata)) : ?>
+<?php echo $this->page->getNavigation(); 
+foreach($this->metadata as $md) : ?>
+<hr />
+<div class="mditem">
+<div class="thumb"><img src="/data/thumb/id/<?php echo $md['id'];?>" /></div>    
+    <h2><a href="/data/<?php echo $md['uuid'];?>"><?php echo $this->escape($md['title']);?></a>
+            </h2>
+    <span><?php echo mb_strlen($md['description'])>400?$this->escape(mb_substr($md['description'],0,400,'UTF-8').'...'):$this->escape($md['description']);?></span>
+</div>
+<?php endforeach; ?>
+<hr />
+<?php echo $this->page->getNavigation();?>
+<?php else: ?>
+<script src='http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAACD-MqkkoOm60o_dvwdcKVhThiRESR0xRCe9JKd36EL3glTk0OxTsRzifkUWmTTrYWaE7dY1lYUlGxA'></script>
+<script src="/js/dragzoom.js" type="text/javascript"></script>
+    <div id="map"></div>    
+    <div id="spatial">
+<form id="search" enctype="application/x-www-form-urlencoded" action="/data/advancesearch" method="post">
+    <!--<fieldset><legend>时间范围</legend><ul>
+    <li><span>开始时间：</span>
+    <input name="start" type="text" id="start" />
+    </li>
+    <li><span>结束时间：</span>
+    <input name="end" type="text" id="end" />&nbsp;
+</li></ul></fieldset>-->
+<fieldset><legend>空间范围</legend><ul>
+    <li><span>东：</span>&nbsp;
+
+        <input name="e" id="e" type="text" /></li>
+     <li><span>南：</span>&nbsp;
+            <input name="s" id="s" type="text" /></li>
+    <li><span>西：</span>&nbsp;
+        <input name="w" id="w" type="text" /></li>
+    <li><span>北：</span>&nbsp;
+        <input name="n" id="n" type="text" /></li></ul></fieldset>
+<span>关键词：</span><input name="q" id="q" type="text" />
+    <input id="search" type="submit" value="搜索" onclick="dosubmit()" />
+</form>
+</div>
+
+        <script type="text/javascript"> 
+      function dosubmit()
+      {
+        theForm.action="/data/advancesearch";
+        }
+    </script>
+    <script type="text/javascript">
+        var map = new GMap2(document.getElementById("map"));
+        map.setCenter(new GLatLng(36, 103.5, 5));
+        map.addControl(new GSmallMapControl());
+        map.addControl(new GMapTypeControl());
+        map.setMapType(G_HYBRID_MAP);
+        var txte=document.getElementById("e");
+        var txtw=document.getElementById("w");
+        var txtn=document.getElementById("n");
+        var txts=document.getElementById("s");
+        /* first set of options is for the visual overlay.*/
+        var boxStyleOpts = {
+          opacity: .2,
+          border: "2px solid red"
+        }
+
+        /* second set of options is for everything else */
+        var otherOpts = {
+          buttonHTML: "<img src='/images/zoom-button.gif' />",
+          buttonZoomingHTML: "<img src='/images/zoom-button-activated.gif' />",
+          buttonStartingStyle: {width: '24px', height: '24px'}
+        };
+
+        /* third set of options specifies callbacks */
+        var callbacks = {
+          dragend: function(nw,ne,se,sw,nwpx,nepx,sepx,swpx){txte.value=ne.lng();txtn.value=ne.lat();txts.value=sw.lat();txtw.value=sw.lng();}
+        };
+  
+        map.addControl(new DragZoomControl(boxStyleOpts, otherOpts, callbacks));        
+    </script>    
+    
+<div id="help">
+     <fieldset><legend>搜索说明</legend><ul><li>关键词：您可以使用一个关键词，比如＂沙漠＂，也可以使用多个关键词，中间用空格分开。</li>
+     <li>空间范围：这是以度为单位的十进制数字。比如，东经125读30分，可以输入为125.5。您也可以通过下面的在线地图工具直接在图上拉框选择一个范围，空间坐标会自动转换到文本框中。</li>
+<li>时间范围：指数据的时间范围，从开始时间到结束时间，若结束时间不填，则是一个时间点。时间格式为YYYY-MM-DD。</li>
+     <li>还不清楚？您可以到<a href="http://forum.westgis.ac.cn/viewforum.php?f=30">论坛</a>提问。</li>
+     </ul></fieldset>
+</div> 
+    
+
+
+<?php endif; ?>

application/default/views/scripts/data/search.phtml

@@ -26,4 +26,7 @@ foreach($this->metadata as $md) : ?>
             </h2>
     <span><?php echo mb_strlen($md['description'])>400?$this->escape(mb_substr($md['description'],0,400,'UTF-8').'...'):$this->escape($md['description']);?></span>
 </div>
-<?php endforeach; endif?>
+<?php endforeach; ?>
+<hr />
+<?php echo $this->page->getNavigation();?>
+<?php endif; ?>

application/models/SearchForm.php

@@ -13,15 +13,10 @@ class SearchForm extends Zend_Form
         ->addFilter('StringTrim')
         ->addValidator('NotEmpty');
 
-		  $spam=new element_bcSpamBlock('spam');
-        $spam->addPrefixPath('Validator','validator/','validate')
-        		 ->addValidator('SpamBlock');			
-
-        $id = new Zend_Form_Element_Hidden('id');
       
         $submit = new Zend_Form_Element_Submit('submit');
         $submit->setLabel('搜索');
-        $this->addElements(array($q,$submit,$spam,$id));
+        $this->addElements(array($q,$submit));
 			$this->clearDecorators();
         $this->addDecorator('FormElements')
          ->addDecorator('HtmlTag', array('tag' => '<ul>'))