基于layui Table的一个简单搜索功能,支持多条件搜索

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2022-03-29 / 0 评论 / 586 阅读 / 正在检测是否收录...

给公司老系统开发功能,老系统的搜索模块需要提交整个页面,而且代码很乱配置很杂。
于是基于layui Table自己手写了一个简单搜索功能,可以多条件搜索。就这样吧,记录一下,以后再优化。

演示效果.gif


# 获取用户列表 (可选,select下拉选项)
$ulist = $this->administration->getUserListByValid("account as k,realname as v");
# 待搜索字段
$searchFields = [
    ['text'=>'维修产品型号','field' => 'typeid','type' => 'input','values'=>''],
    ['text'=>'维修日期','field' => 'repair_time','type' => 'date','values'=>''],
    ['text'=>'维修处理状态','field' => 'state_text','type' => 'input','values'=>''],
    ['text'=>'更好材料型号','field' => 'change_typeid','type' => 'input','values'=>''],
    ['text'=>'维修联系人','field' => 'repair_name','type' => 'input','values'=>''],
    ['text'=>'维修联系人电话','field' => 'repair_phone','type' => 'input','values'=>''],
    ['text'=>'经办人','field' => 'repair_account','type' => 'select','values'=>$ulist],
    ['text'=>'费用','field' => 'repair_money','type' => 'input','values'=>''],

];
$optionHtml = "";
foreach ($searchFields as $field){
    $optionHtml .= '<option value="'.$field['field'].'">'.$field['text'].'</option>';
}
<div style="padding-top: 20px;text-align: center;display: none"  id="searchBox">

    <!--
        $searchFields array 字段列表
            text 展示文字
            field 数据库字段
            type 类型 input 输入 select 下拉选择 date日期选择
            values 默认值 type为select时 values为数组  k=>v
        $optionHtml 下拉选择 搜索键

        前端依赖
           jquery        选择器
           zui           表单样式
           layui.laydate 日期选择模块
     -->
    <div class="" style="max-width: 720px;margin: 0 auto">

        <!-- 初始化第一个搜索条件 -->
        <div class="row searchBox searchBox_1" data-index="1">
            <div class="col-xs-3">
                <select class="form-control input-sm" id="field_1" onchange="ayFieldChange(1,this.value)">
                    <?php
                    echo $optionHtml;
                    ?>
                </select>
            </div>
            <div class="col-xs-2">
                <select class="form-control input-sm" id="condition_1">
                    <option value="eq"> = </option><option value="gt"> > </option><option value="lt"> < </option><option value="elt"> <= </option>
                    <option value="egt"> >= </option><option value="nq"> 不等于 </option><option value="%"> 包含 </option>
                </select>
            </div>
            <div class="col-xs-3" id="value_box_1">
                <input type="text" class="form-control input-sm" id="value_1" placeholder="">
            </div>
            <div class="col-xs-2">
                <select class="form-control input-sm" id="where_1" onchange="ayWhereChange(1,this.value)">
                    <option value=""> 无更多条件 </option>
                    <option value="and"> 并且 </option>
                    <option value="or"> 或者 </option>
                </select>
            </div>
            <div class="col-xs-1">
                <button class="searchBtn btn btn-sm btn-blue">搜索</button>
            </div>
            <div class="col-xs-1">

                <button class="closesearchBtn btn btn-sm  btn-blue">清空搜索</button>
            </div>
        </div>

        <script>
            let nextIndex = 2; // 下一个搜索条件下标
            let searchFields = <?=json_encode($searchFields)?>; // 搜索字段数据
            let optionHtml = '<?=$optionHtml?>'; // 搜索字段下拉option

            /**
             * 监听选中搜索字段 生成对应类型的输入框
             * @param index
             * @param fieldValue
             */
            function ayFieldChange(index,fieldValue){
                for(var i = 0;i<searchFields.length;i++){
                    var tempFields = searchFields[i];
                    if(tempFields.field == fieldValue){
                        if(tempFields.type == "select"){
                            var inputHtml = "<select class='form-control input-sm' id='value_"+index+"'>";
                            for(var k=0;k<tempFields.values.length;k++){
                                inputHtml += "<option value='"+tempFields.values[k]['k']+"'>"+tempFields.values[k]['v']+"</option>";
                            }
                            inputHtml += "</select>";
                            $("#value_box_"+index).html(inputHtml);
                        }else if(tempFields.type == "date"){
                            var inputHtml = '<input type="text" class="form-control input-sm" id="value_'+index+'" placeholder="">';
                            $("#value_box_"+index).html(inputHtml);
                            console.log("value_"+index);
                            layui.laydate.render({
                                elem: "#value_"+index
                                ,type: 'date'
                            });
                        }else{
                            var inputHtml = '<input type="text" class="form-control input-sm" id="value_'+index+'" placeholder="">';
                            $("#value_box_"+index).html(inputHtml);
                        }

                    }
                }
            }

            /**
             * 添加搜索条件
             * @param index
             * @param where
             */
            function ayWhereChange(index,where){
                if(index < nextIndex-1) return;
                if(where == "and" || where  == "or"){
                    var html = '<div data-index="'+nextIndex+'" class="row searchBox searchBox_'+nextIndex+'">'+
                        '<div class="col-xs-3">' +
                        '<select class="form-control input-sm" id="field_'+nextIndex+'" onchange="ayFieldChange('+nextIndex+',this.value)">' +
                        optionHtml+
                        '</select></div>'+
                        '<div class="col-xs-2">'+
                        '<select class="form-control input-sm" id="condition_'+nextIndex+'"> '+
                        '<option value="eq"> = </option><option value="gt"> > </option><option value="lt"> < </option><option value="elt"> <= </option>'+
                        '<option value="egt"> >= </option><option value="nq"> 不等于 </option><option value="%"> 包含 </option>'+
                        '</select> </div>'+
                        '<div class="col-xs-3" id="value_box_'+nextIndex+'">'+
                        '<input type="text" class="form-control input-sm" id="value_'+nextIndex+'" placeholder="">'+
                        '</div>'+
                        '<div class="col-xs-2">'+
                        '<select class="form-control input-sm" id="where_'+nextIndex+'" onchange="ayWhereChange('+nextIndex+',this.value)">'+
                        '   <option value=""> 无更多条件 </option>'+
                        '   <option value="and"> 并且 </option>'+
                        '   <option value="or"> 或者 </option>'+
                        '</select>'+
                        ' </div>'+
                        '</div>';
                    nextIndex++;
                    $(".searchBox_"+index).after(html)
                }
            }

            /**
             * 获取所有搜索条件
             * @returns {any[]}
             */
            function buildSearch(){
                var searchBoxlist = $(".searchBox");

                var where = new Array();
                for (var i = 1;i<=searchBoxlist.length;i++){
                    var line = {};
                    line['field'] = $("#field_"+i).val()
                    line['condition'] = $("#condition_"+i).val()
                    line['value'] = $("#value_"+i).val()==undefined?"":$("#value_"+i).val()
                    line['where'] = $("#where_"+i).val()
                    where.push(line);
                    if( line['where'] == "") break;
                }
                return where;
            }

        </script>

    </div>
    <!-- 搜索轮子 -->

</div>

<!-- --------------------- 搜索结束 --------------------- -->
// 监听搜索
$(".searchBtn").click(function (){
  var where = buildSearch();
  table.reload('testReload', {
      page: {
          curr: 1 //重新从第 1 页开始
      }
      ,where: {
          where
      }
  });
})
// 清空搜索
$(".closesearchBtn").click(function (){
  table.reload('testReload', {
      page: {
          curr: 1 //重新从第 1 页开始
      }
      ,where:  []
  });
})
 /**
 * 构建where条件
 * @param $where
 * @return string
 */
public function buildWhereSql($where){
    $conditionChar = ["lt" => "<", "gt" => ">", "eq" => "=", "nq" => "<>", "egt" => ">=", "elt" => "<=",];

    if(!$where){
        return " 1 = 1 ";
    }
    $sql_str = "";
    $next_where = "";
    foreach ($where as $row){
        if($next_where){ # 如果还有条件,使用上一次的连接条件 拼接SQL
            $sql_str .= " ".$next_where;
        }
        # 开始拼接where条件
        $field = $row['field']; # 字段
        $condition = $row['condition']; # 条件
        $value = $row['value']; # 值
        $s_str = " `$field` ";
        if($condition == "%"){
            $s_str .= " like '%$value%'";
        }else{
            $zcahr = isset($conditionChar[$condition])?$conditionChar[$condition]:"=";
            $s_str .= " $zcahr '$value'";
        }
        $next_where = $row['where'];
        $sql_str.=$s_str;
        if(empty($next_where)) break;
    }
    return  $sql_str;
}
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