PHP/MySQL:删除一行 ta PHP 页面后出错(已过滤) [英] PHP / MySQL: Error after delete a row ta PHP page (filtered)
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问题描述
我的删除功能有问题.在此之前，我先给大家简单介绍一下系统流程
I have a problem with my delete function. Before that, I will brief to you about the flow of the system
1) 在dashboard_engineer.php，有3个选择选项，分别是团队、时间和时间.
1) At dashboard_engineer.php, there's 3 select options which is team, time from and time to.
2) 用户需要选择 3 个选项，然后按搜索"按钮显示结果.
2) user need to select 3 select option and press button "Search" to display the result.
3) 结果将显示在dashboard_engineer2.php.
3) The result will display at dashboard_engineer2.php.
4) 结果会显示所有数据行，每行包含一个删除按钮.
4) The result will display all data rows and each row contains one delete button.
我的问题是，在我点击按钮删除后，删除成功，但dashboard_engineer2.php页面没有显示与上面第3点相同的结果.结果为空.
My problem is, after I click button delete, it was successful delete but the dashboard_engineer2.php page doesn't display the result that same as point 3 above. The result empty.
我想要的是，删除后，dashboard_engineer2.php 将显示之前已经过滤的剩余数据行.下面是我的代码.
What I want is that, after delete, the dashboard_engineer2.php will display the remaining data rows that already filtered before. Below is my code.
dashboard_engineer.php
dashboard_engineer.php
<?php
$smt = $conn->prepare("SELECT * FROM ot_team INNER JOIN ot_users ON ot_team.team_id = ot_users.team_id WHERE ot_users.roles_id = 7 AND ot_users.team_id <> 1 ORDER BY ot_users.fullname ASC");
$smt->execute();
$data = $smt->fetchAll();
?>
<form method = 'post' action = 'dashboard_engineer2.php' >
<td width="40%">
<select class="form-control" name="team" id="team" required>
<option value="">Please select...</option>
<?php foreach ($data as $row2): ?>
<option value= <?php echo $row2["team_id"]; ?> ><?php echo $row2["fullname"]; ?></option>
<?php endforeach ?>
</select>
</td>
<td width="1%"></td>
<td width="20%"><input type="text" name="from" id="from" class="form-control" placeholder="From" required></td>
<td width="1%"></td>
<td width="20%"><input type="text" name="to" id="to" class="form-control" placeholder="To" required></td>
<td width="1%"></td>
<td width="10%"><button type="submit" value="Search" class="btn btn-primary" >Send</button><td>
</form>
<script>
$(document).ready(function(){
$.datepicker.setDefaults({
dateFormat: 'yy-mm-dd'
});
$(function(){
$("#from").datepicker().attr("autocomplete", "off");;
$("#to").datepicker().attr("autocomplete", "off");;
});
});
</script>
dashboard_engineer2.php
dashboard_engineer2.php
<?php
if(isset($_POST["from"], $_POST["to"], $_POST["team"])){
$result = '';
$query = "SELECT * FROM ot_report LEFT JOIN ot_users ON ot_report.badgeid = ot_users.badgeid WHERE ot_users.team_id = '".$_POST["team"]."' AND report_date BETWEEN '".$_POST["from"]."' AND '".$_POST["to"]."' ORDER BY ot_report.report_date DESC";
$sql = $conn->prepare($query, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));
$sql -> execute();
if($sql->rowCount() > 0){
echo'
<table class = "table-bordered" width = "100%">
<thead>
<tr>
<th width = "10%"><input type="checkbox" id="checkAl"> All</th>
<th width = "3%">id</th>
<th width = "15%">Date</th>
<th width = "30%">Task Name</th>
<th width = "10%">Status</th>
<th colspan = "2" width = "7%">Action</th>
</tr>
</thead>
<tbody>';
$i=0;
while($row = $sql->fetch(PDO::FETCH_ASSOC)){
$datereport = $row['report_date'];
$datereport2 = strtotime($datereport);
$report_date = date('d M Y', $datereport2);
$report_id = $row["report_id"];
echo'<tr>';
echo '<td><input type="checkbox" id="checkItem" name="check[]" value='.$row['report_id'].'></td>';
echo '<td>'.$report_id.'</td>';
echo '<td>'.$report_date.'</td>';
echo '<td>'.$row["task_name"].'</td>';
echo '<td align="center"><strong>'.$row["report_status"].'</strong></td>';
echo '<td align="center">';
echo '<form action = "view_task/view_task.php" method = "post">';
echo '<input type = "hidden" name = "report_id" value = "'.$report_id.'">';
echo '<button type = "submit" class="btn-primary">View</button>';
echo '</form>';
echo "<form action = 'delete.php' method = 'post' onClick=\"return confirm('Do you want to remove team?')\">";
echo '<input type = "hidden" name = "from" value = "'.$_POST["from"].'">';
echo '<input type = "hidden" name = "to" value = "'.$_POST["to"].'">';
echo '<input type = "hidden" name = "team" value = "'.$_POST["team"].'">';
echo '<input type = "hidden" name = "report_id" value = "'.$report_id.'">';
echo '<button type = "submit" class="btn-danger">Delete</button>';
echo '</form>';
echo '</td>';
echo '</tr>';
$i++;
}
echo '<tr>';
echo '<td><p align="center"><button type="submit" class="btn-danger btn-sm" name="save">DELETE</button></p></td>';
echo '</tr>';
echo '</form>';
}
else
{
echo '
<table class = "table-bordered" width = "100%">
<thead>
<tr>
<th width = "5%">id</th>
<th width = "12%">Date</th>
<th width = "23%">Task Name</th>
<th width = "10%">Status</th>
<th width = "7%">Action</th>
</tr>
<tr>
<td colspan="5">No report found</td>
</tr>';
}
echo '</body></table></div></div>';
}
?>
删除.php
<?php
$report_id = $_POST['report_id'];
$sql = "DELETE FROM ot_report WHERE report_id=:report_id";
$query = $conn->prepare($sql);
$query->execute(array(':report_id' => $report_id));
header("Location: dashboard_engineer2.php");
?>
谁能帮我解决这个问题?
Can anyone help me on how to fix this?
推荐答案
这个案例和问题一样PHP/MySQL:成功更新数据后显示一些错误
这是因为在dashboard_engineer2.php 中，如果发布了 from、to、team 变量，您的代码将显示数据库中的数据.
that's because in dashboard_engineer2.php your code will display data from the database if the from, to, team variable is posted.
从delete.php重定向到dashboard_engineer2.php是get方法，之前发布的数据丢失了
from delete.php redirect to dashboard_engineer2.php being the get method and the data that was previously posted is missing
将delete.php代码改成这样
<?php
$report_id = $_POST['report_id'];
$from = $_POST['from'];
$to = $_POST['to'];
$team = $_POST['team'];
$sql = "DELETE FROM ot_report WHERE report_id=:report_id";
$query = $conn->prepare($sql);
$query->execute(array(':report_id' => $report_id));
// so that the data previously posted is taken
// when redirecting to the dashboard_engineer2.php page
// even though it is a GET method
header("Location: dashboard_engineer2.php?from={$from}&to={$to}&team={$team}");
?>
dashboard_engineer2.php 有一个细微的变化，就像这样
and there was a slight change in dashboard_engineer2.php to be like this
<?php
// change the initial conditions to be like this
// $_REQUEST will get data if there is data in POST or GET
if(isset($_REQUEST["from"], $_REQUEST["to"], $_REQUEST["team"])){
$from = $_REQUEST['from'];
$to = $_REQUEST['to'];
$team = $_REQUEST['team'];
$result = '';
$query = "SELECT * FROM ot_report LEFT JOIN ot_users ON ot_report.badgeid = ot_users.badgeid WHERE ot_users.team_id = '".$team."' AND report_date BETWEEN '".$from."' AND '".$to."' ORDER BY ot_report.report_date DESC";
$sql = $conn->prepare($query, array(PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL));
$sql -> execute();
if($sql->rowCount() > 0){
echo'
<table class = "table-bordered" width = "100%">
<thead>
<tr>
<th width = "10%"><input type="checkbox" id="checkAl"> All</th>
<th width = "3%">id</th>
<th width = "15%">Date</th>
<th width = "30%">Task Name</th>
<th width = "10%">Status</th>
<th colspan = "2" width = "7%">Action</th>
</tr>
</thead>
<tbody>';
$i=0;
while($row = $sql->fetch(PDO::FETCH_ASSOC)){
$datereport = $row['report_date'];
$datereport2 = strtotime($datereport);
$report_date = date('d M Y', $datereport2);
$report_id = $row["report_id"];
echo'<tr>';
echo '<td><input type="checkbox" id="checkItem" name="check[]" value='.$row['report_id'].'></td>';
echo '<td>'.$report_id.'</td>';
echo '<td>'.$report_date.'</td>';
echo '<td>'.$row["task_name"].'</td>';
echo '<td align="center"><strong>'.$row["report_status"].'</strong></td>';
echo '<td align="center">';
echo '<form action = "view_task/view_task.php" method = "post">';
echo '<input type = "hidden" name = "report_id" value = "'.$report_id.'">';
echo '<button type = "submit" class="btn-primary">View</button>';
echo '</form>';
echo "<form action = 'delete.php' method = 'post' onClick=\"return confirm('Do you want to remove team?')\">";
echo '<input type = "hidden" name = "from" value = "'.$from.'">';
echo '<input type = "hidden" name = "to" value = "'.$to.'">';
echo '<input type = "hidden" name = "team" value = "'.$team.'">';
echo '<input type = "hidden" name = "report_id" value = "'.$report_id.'">';
echo '<button type = "submit" class="btn-danger">Delete</button>';
echo '</form>';
echo '</td>';
echo '</tr>';
$i++;
}
echo '<tr>';
echo '<td><p align="center"><button type="submit" class="btn-danger btn-sm" name="save">DELETE</button></p></td>';
echo '</tr>';
echo '</form>';
}
else
{
echo '
<table class = "table-bordered" width = "100%">
<thead>
<tr>
<th width = "5%">id</th>
<th width = "12%">Date</th>
<th width = "23%">Task Name</th>
<th width = "10%">Status</th>
<th width = "7%">Action</th>
</tr>
<tr>
<td colspan="5">No report found</td>
</tr>';
}
echo '</body></table></div></div>';
}
?>
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