我正在尝试在我的页面上运行集成的搜索工具栏，但是我没有运气。常规搜索功能对我有用，但每当我在集成工具栏中输入任何内容时，它都会返回0结果。
这是我的jquery：
$("#parts_table").jqGrid({
url:'testparts2.php',
datatype: "json",
colNames:['Part ID','Name', 'Description', 'Weight'],
colModel:[
{name:'part_ID',index:'part_ID', search: true, stype:'text', width:55},
{name:'part_name',index:'part_name', width:90},
{name:'part_desc',index:'part_desc', width:100},
{name:'part_weight',index:'part_weight', width:80, align:"right"},
],
rowNum:30,
rowList:[10,20,30],
pager: '#pager2',
sortname: 'part_ID',
viewrecords: true,
sortorder: "asc",
caption:"Parts in Database",
width: '800',
height: '300',
});
$("#parts_table").jqGrid('navGrid','#pager2',{edit:false,add:false,del:false});
$("#parts_table").jqGrid('filterToolbar',{stringResult: false,searchOnEnter : false, defaultSearch: 'cn', ignoreCase: true});
这是我的PHP代码：
<?php
include "begin.php";
$page = $_REQUEST['page']; // get the requested page
$limit = $_REQUEST['rows']; // get how many rows we want to have into the grid
$sidx = $_REQUEST['sidx']; // get index row - i.e. user click to sort
$sord = $_REQUEST['sord']; // get the direction
if(!$sidx) $sidx =1;
//array to translate the search type
$ops = array(
'eq'=>'=', //equal
'ne'=>'<>',//not equal
'lt'=>'<', //less than
'le'=>'<=',//less than or equal
'gt'=>'>', //greater than
'ge'=>'>=',//greater than or equal
'bw'=>'LIKE', //begins with
'bn'=>'NOT LIKE', //doesn't begin with
'in'=>'LIKE', //is in
'ni'=>'NOT LIKE', //is not in
'ew'=>'LIKE', //ends with
'en'=>'NOT LIKE', //doesn't end with
'cn'=>'LIKE', // contains
'nc'=>'NOT LIKE' //doesn't contain
);
function getWhereClause($col, $oper, $val){
global $ops;
if($oper == 'bw' || $oper == 'bn') $val .= '%';
if($oper == 'ew' || $oper == 'en' ) $val = '%'.$val;
if($oper == 'cn' || $oper == 'nc' || $oper == 'in' || $oper == 'ni') $val = '%'.$val.'%';
return " WHERE $col {$ops[$oper]} '$val' ";
}
$where = ""; //if there is no search request sent by jqgrid, $where should be empty
$searchField = isset($_GET['searchField']) ? $_GET['searchField'] : false;
$searchOper = isset($_GET['searchOper']) ? $_GET['searchOper']: false;
$searchString = isset($_GET['searchString']) ? $_GET['searchString'] : false;
if ($_GET['_search'] == 'true') {
$where = getWhereClause($searchField,$searchOper,$searchString);
}
$totalrows = isset($_REQUEST['totalrows']) ? $_REQUEST['totalrows']: false;
if($totalrows) {
$limit = $totalrows;
}
$result = mysql_query("SELECT COUNT(*) AS count FROM parts");
$row = mysql_fetch_array($result,MYSQL_ASSOC);
$count = $row['count'];
if( $count >0 ) {
$total_pages = ceil($count/$limit);
} else {
$total_pages = 0;
}
if ($page > $total_pages) $page=$total_pages;
if ($limit<0) $limit = 0;
$start = $limit*$page - $limit; // do not put $limit*($page - 1)
if ($start<0) $start = 0;
$SQL = "SELECT * FROM parts ".$where." ORDER BY $sidx $sord LIMIT $start , $limit";
$result = mysql_query( $SQL ) or die("Couldn't execute query.".mysql_error());
$response->page = $page;
$response->total = $total_pages;
$response->records = $count;
$i=0;
while($row = mysql_fetch_array($result,MYSQL_ASSOC)) {
$response->rows[$i]['part_ID']=$row[part_ID];
$response->rows[$i]['cell']=array($row[part_ID],$row[part_name],$row[part_desc],$row[part_weight]);
$i++;
}
echo json_encode($response);
?>
我花了几个小时寻找一个适用于常规搜索的PHP示例（见上文），但它似乎不适用于工具栏搜索。有人可以帮忙吗？感谢
编辑：这是来自jqGrid演示文件夹的代码，用于使用此搜索，但它似乎充满了错误，我不知道如何在我的情况下使用它。我不需要为搜索指定数据类型（它们都是varchars，因此字符串可以正常工作）..所以我认为我可以去掉开关/案例部分以进行值转换。我想我只需要更改原始代码以使用$_REQUEST['filters']和foreach循环来构建查询，但我对PHP并不是那么好，所以任何帮助都会受到赞赏。
演示代码：
$wh = "";
$searchOn = Strip($_REQUEST['_search']);
if($searchOn=='true') {
$searchstr = Strip($_REQUEST['filters']);
$wh= constructWhere($searchstr);
//echo $wh;
}
function constructWhere($s){
$qwery = "";
//['eq','ne','lt','le','gt','ge','bw','bn','in','ni','ew','en','cn','nc']
$qopers = array(
'eq'=>" = ",
'ne'=>" <> ",
'lt'=>" < ",
'le'=>" <= ",
'gt'=>" > ",
'ge'=>" >= ",
'bw'=>" LIKE ",
'bn'=>" NOT LIKE ",
'in'=>" IN ",
'ni'=>" NOT IN ",
'ew'=>" LIKE ",
'en'=>" NOT LIKE ",
'cn'=>" LIKE " ,
'nc'=>" NOT LIKE " );
if ($s) {
$jsona = json_decode($s,true);
if(is_array($jsona)){
$gopr = $jsona['groupOp'];
$rules = $jsona['rules'];
$i =0;
foreach($rules as $key=>$val) {
$field = $val['field'];
$op = $val['op'];
$v = $val['data'];
if($v && $op) {
$i++;
// ToSql in this case is absolutley needed
$v = ToSql($field,$op,$v);
if ($i == 1) $qwery = " AND ";
else $qwery .= " " .$gopr." ";
switch ($op) {
// in need other thing
case 'in' :
case 'ni' :
$qwery .= $field.$qopers[$op]." (".$v.")";
break;
default:
$qwery .= $field.$qopers[$op].$v;
}
}
}
}
}
return $qwery;
}
function ToSql ($field, $oper, $val) {
// we need here more advanced checking using the type of the field - i.e. integer, string, float
switch ($field) {
case 'id':
return intval($val);
break;
case 'amount':
case 'tax':
case 'total':
return floatval($val);
break;
default :
//mysql_real_escape_string is better
if($oper=='bw' || $oper=='bn') return "'" . addslashes($val) . "%'";
else if ($oper=='ew' || $oper=='en') return "'%" . addcslashes($val) . "'";
else if ($oper=='cn' || $oper=='nc') return "'%" . addslashes($val) . "%'";
else return "'" . addslashes($val) . "'";
}
}
$result = mysql_query("SELECT COUNT(*) AS count FROM invheader a, clients b WHERE a.client_id=b.client_id".$wh);
$row = mysql_fetch_array($result,MYSQL_ASSOC);
$count = $row['count'];
if( $count >0 ) {
$total_pages = ceil($count/$limit);
} else {
$total_pages = 0;
}
if ($page > $total_pages) $page=$total_pages;
$start = $limit*$page - $limit; // do not put $limit*($page - 1)
if ($start<0) $start = 0;
$SQL = "SELECT a.id, a.invdate, b.name, a.amount,a.tax,a.total,a.note FROM invheader a, clients b WHERE a.client_id=b.client_id".$wh." ORDER BY ".$sidx." ".$sord. " LIMIT ".$start." , ".$limit;
$result = mysql_query( $SQL ) or die("Could not execute query.".mysql_error());
$responce->page = $page;
$responce->total = $total_pages;
$responce->records = $count;
$i=0;
while($row = mysql_fetch_array($result,MYSQL_ASSOC)) {
$responce->rows[$i]['id']=$row[id];
$responce->rows[$i]['cell']=array($row[id],$row[invdate],$row[name],$row[amount],$row[tax],$row[total],$row[note]);
$i++;
}
//echo $json->encode($responce); // coment if php 5
echo json_encode($responce);
答案 0 :(得分：3)
我昨天自己也遇到过同样的问题。你是对的，你需要使用$ _REQUEST ['filters']引入过滤器，然后将其分解，以便你可以使用每一块。
首先，您需要在初始化FilterToolbar的jQuery文件中设置stringResult: true。
以下是PHP将用于引入的代码，并分解filters对象：
// Gets the 'filters' object from JSON
$filterResultsJSON = json_decode($_REQUEST['filters']);
// Converts the 'filters' object into a workable Array
$filterArray = get_object_vars($filterResultsJSON);
现在你有$filterArray包含filters对象的内容，你现在可以分解其中包含的rules对象。基本上，$filterArray中还有另一个数组，其中包含搜索详细信息，如果用户尝试跨表中的多个列执行此搜索 - 它称为rules。
以下是我如何分解rules对象并根据用户的输入执行SELECT查询：
// Begin the select statement by selecting cols from tbl
$sql = 'select '.implode(',',$crudColumns).' from '.$crudTableName;
// Init counter to 0
$counter = 0;
// Loop through the $filterArray until we process each 'rule' array inside
while($counter < count($filterArray['rules']))
{
// Convert the each 'rules' object into a workable Array
$filterRules = get_object_vars($filterArray['rules'][$counter]);
// If this is the first pass, start with the WHERE clause
if($counter == 0){
$sql .= ' WHERE ' . $filterRules['field'] . ' LIKE "%' . $filterRules['data'] . '%"';
}
// If this is the second or > pass, use AND
else {
$sql .= ' AND ' . $filterRules['field'] . ' LIKE "%' . $filterRules['data'] . '%"';
}
$counter++;
}
// Finish off the select statement
$sql .= ' ORDER BY ' . $postConfig['sortColumn'] . ' ' . $postConfig['sortOrder'];
$sql .= ' LIMIT '.$intStart.','.$intLimit;
/* run the query */
$result = mysql_query( $sql )
我相信你会有疑问，所以请随时问你是否这样做！