我第一次来这里。
我正在使用PHP，MySQL，JavaScript并运行JQUERY和AJAX函数。
我有一个运行函数的锚链接。
该函数清空DIV标记，然后使用is null where子句填充/显示（SELECT查询）DIV中的行表。每行都有一个选择框，其中NULL数据列将到达。选择框中的数据来自不同的表格。
当选择框发生变化时，它立即运行ajax以使用选择框中的新数据更新表格行。
当您再次单击链接以再次运行该函数时（空，选择基于空列的查询和显示），刚刚更新到数据库的行将根据is null子句再次显示。此时检查数据库表显示它实际上不是null并且在第一次运行时正确地更新了。
在此过程中页面永远不会刷新，永远不必刷新。如果我刷新它会显示没有BUG的正确数据。
非常感谢您的所有想法。
亚光
function closeItemsBtn() { // called by a click function of a standard link/button
$('#CloseItems').empty(); // remove all html from the DIV
var newAppend = '';
<?
//[... connect to db ...]
// select info from 2 different tables so it can be used in different locations if necessary
// where the row has not been reviewed and therefore is null
$query = "select * from nearmiss where reviewedId is null order by submitDate desc";
$result = $db->query($query) or die($db->error);
$query2 = "select * from hazardid where reviewedId is null order by submitDate desc";
$result2 = $db->query($query2) or die($db->error);
$num_rows = $result->num_rows;
$num_rows2 = $result2->num_rows;
// create html for the DIV tag. Creates a table in a DIV that collapses by clicking aCloseList.
// each row is in tbody so it can be striped by a all purpose striping function
// this part is the table header and opening div tags and link
$newAppend = "<p id=\"closeList\"><a href=\"#\" id=\"aCloseList\">Show/Hide</a> {$num_rows} Near Misses requiring attention.</p><div id=\"closenearmiss\" style=\"display:none;\"><table class=\"closenearmisstable\"><tbody><tr><td>Date Submitted</td><td>Submitted By</td><td>Location</td><td>Reviewed By</td></tr><tr><td rowspan=\"2\">Type</td><td colspan=\"3\">Description / Observation</td></tr><tr><td colspan=\"3\">Action / Reinforcement</td></tr></tbody>";
// update various foreign key information from other tables
for ($i=0;$i<$num_rows;$i++) {
$row = $result->fetch_assoc();
$query3 = "select location from locations where locationId='{$row['locationId']}'";
$result3 = $db->query($query3);
$location = $result3->fetch_assoc();
$query3 = "select name from employees where employeeId='{$row['employeeId']}'";
$result3 = $db->query($query3);
$name = $result3->fetch_assoc();
// here is the table itself with the select tag in the null column name=reviewed
$newAppend .= "<tbody><tr><td>{$row['submitDate']}</td><td>{$name['name']}</td><td>{$location['location']}</td><td><form name=\"nearmissreview\" action=\"\" method=\"\"><input type=\"hidden\" name=\"docId\" value=\"{$row['nearmissId']}\"><input type=\"hidden\" name=\"type\" value=\"nearmiss\"><select name=\"reviewed\"><option>Choose name to sign off</option></select></form></td></tr><tr><td rowspan=\"2\">Near Miss</td><td colspan=\"3\">{$row['description']}</td></tr><tr><td colspan=\"3\">{$row['action']}</td></tr></tbody>";
}
$newAppend .= "</table></div>";
// this is the beginning of the second table same structure as first with collapsing but
// different data
$newAppend .= "<p id=\"closeList\"><a href=\"#\" id=\"aCloseList\">Show/Hide</a> {$num_rows2} Hazard IDs requiring attention.</p><div id=\"closehazardid\" style=\"display:none;\"><table class=\"closehazardidtable\"><tbody><tr><td>Date Submitted</td><td>Submitted By</td><td>Location</td><td>Reviewed By</td></tr><tr><td rowspan=\"2\">Type</td><td colspan=\"3\">Description / Observation</td></tr><tr><td colspan=\"3\">Action / Reinforcement</td></tr></tbody>";
for ($i=0;$i<$num_rows2;$i++) {
$row = $result2->fetch_assoc();
$query3 = "select location from locations where locationId='{$row['locationId']}'";
$result3 = $db->query($query3);
$location = $result3->fetch_assoc();
$query3 = "select name from employees where employeeId='{$row['employeeId']}'";
$result3 = $db->query($query3);
$name = $result3->fetch_assoc();
$newAppend .= "<tbody><tr><td>{$row['submitDate']}</td><td>{$name['name']}</td><td>{$location['location']}</td><td><form name=\"hazardidreview\" action=\"\" method=\"\"><input type=\"hidden\" name=\"docId\" value=\"{$row['hazardidId']}\"><input type=\"hidden\" name=\"type\" value=\"hazardid\"><select name=\"reviewed\"><option>Choose name to sign off</option></select></form></td></tr><tr><td rowspan=\"2\">Hazard ID</td><td colspan=\"3\">{$row['description']}</td></tr><tr><td colspan=\"3\">{$row['action']}</td></tr></tbody>";
}
$newAppend .= "</table></div>";
echo "newAppend='{$newAppend}';";
$result->free();
$result2->free();
$result3->free();
$db->close();
?>
// put HTML of $newAppend php in the DIV
$('#CloseItems').append(newAppend);
// fill the select box with a variable set somewhere else in the code not displayed here
$('#CloseItems select[name=reviewed]').append(newAppendE);
stripePointsTable('.closenearmisstable tbody');
stripePointsTable('.closehazardidtable tbody');
// close list click options
$('#closeList > a').each(function() {
$(this).click(function() {
if ($(this).parent().next().css('display')=='none') {
$(this).parent().next().slideDown('slow');
} else {
$(this).parent().next().slideUp('fast');
}
});
});
// select tag change function that calls ajax and displays a message in a DIV called header
$('#closenearmiss select').change(function() {
function processDataClose(data, success) {
if (success) {
$('#header').prepend(data+"<br />");
closeItemsBtn();
} else {
$('#header').prepend(data+"<br />");
}
}
var formData = $(this).parent().serialize();
$.post('processreviewsign.php',formData,processDataClose);
});
答案 0 :(得分：0)