jQuery按两个值过滤 [英] Jquery filtering by two values

问题描述

这一次我在jQuery过滤方面遇到问题.

This time I have a problem with jQuery filtering.

$( document ).ready(function() {
    $('#search').keyup(function() {
         var s = new RegExp(this.value);
         $('#support-tasks-table tbody tr').each(function() {
             if(s.test(this.cells[8].innerHTML))
                 $(this).show();
             else $(this).hide();
         });
    });
    $('select#sel-supporttask-projects').change(function() {
        var s = new RegExp(this.value);
        $('#support-tasks-table tbody tr').each(function() {
            if(s.test(this.cells[3].innerHTML)) $(this).show();
            else $(this).hide();
        });
    });
})

每个函数都按单元格值隐藏或显示表tr，并且工作正常.但是，当我在搜索中设置内容时，然后从select中选择选项，它会忽略tr的隐藏，并从表中的所有tr进行搜索.有没有简单的方法可以更改此代码以仅按显示的tr进行搜索?

Each of this functions hides or shows table tr's by cell value and it's working fine. But when I set something on search, and after that I choose the option from select, it ignores that tr's are hidden and searching from all tr's in a table. Is there any easy way to change this code to search only by showed tr's?

推荐答案

简单的答案是将:visible添加到选择器:

The simple answer is to add :visible to the selector:

$('select#sel-supporttask-projects').change(function() {
    var s = new RegExp(this.value);
    $('#support-tasks-table tbody tr:visible').each(function() {
        if(s.test(this.cells[3].innerHTML)) $(this).show();
        else $(this).hide();
    });
});

但是它突出了一个设计缺陷:如果选择其他选项，则希望一些以前不可见的答案变得可见.

But it highlights a design flaw: if you select a different option, you would want some answers that were previously invisible to become visible.

本质上，您需要一个包含两个搜索过滤器的searchParameters类:

Essentially, you need to have a searchParameters class that includes both search filters:

var searchParameters = {
    supportTask: null,
    searchRegex: null
};

function shouldRowBeVisible(row) {
   if(searchParameters.supportTask) {
      if(!(searchParameters.supportTask.test(row.cells[3].innerHTML))) {
          return false;
       }
   }
   if(searchParameters.searchRegex) {
                if(!(searchParameters.searchRegex.test(row.cells[3].innerHTML))) {
          return false;
       }
   }
   return true;
}


function updateVisibility() {
   $('#support-tasks-table tbody tr').each(function() {
       if(shouldRowBeVisible(this) {
         $(this).show();
       } else {
         $(this).hide();
       }
    });
}

 $('#search').keyup(function() {
     searchParameters.searchRegex = new RegExp(this.value);
     updateVisibility();
});
$('select#sel-supporttask-projects').change(function() {
    searchParameters.supportTask = new RegExp(this.value);
    updateVisibility();
});

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