xampp - How to set selected value for dependent dropdown in php -
i have staff master form, in have 2 dropdowns 1)department 2)designation.now facing problem, when click edit button department dropdown load selected value designation not loading value w.r.t selected department.here code.
staff master form code :
<?php require "ajax.php"; $deptid=0; $desgnid=0; $name=""; $empid=""; $emailid=""; $username=""; $password=""; $mobileno=""; $id=0; $edit_state= false; //to connect database $db = mysqli_connect('localhost', 'root', '1234', 'employee'); //to load department dropdown $dresult=mysqli_query($db, "select * department"); if(isset($_post['save'])) { $deptid=$_post['dept']; //echo $deptid . '<br>'; $desgnid=$_post['designationid']; //echo 'desgn : '.$desgnid . '<br>'; $name=$_post['name']; //echo $name . '<br>'; $empid=$_post['employeeid']; //echo $empid . '<br>'; $emailid=$_post['emailid']; //echo $emailid . '<br>'; $username=$_post['username']; //echo $username . '<br>'; $password=$_post['password']; //echo $password . '<br>'; $mobileno=$_post['mobileno']; //echo $mobileno . '<br><br><br><br>'; $insertqry="insert employee_details (staff_name, employee_id, email_id, username, password, mobile_no, department_id, designation_id) values ('$name','$empid','$emailid', '$username', '$password', '$mobileno', '$deptid', '$desgnid')"; //echo $insertqry . '<br>'; mysqli_query($db, $insertqry); $_session['msg']="data saved successfully"; $deptid=0; $desgnid=0; $name=""; $empid=""; $emailid=""; $username=""; $password=""; $mobileno=""; } if(isset($_post['update'])) { $deptid=mysql_real_escape_string($_post['dept']); $desgnid=mysql_real_escape_string($_post['designationid']); //echo 'desgn : '.$desgnid . '<br>'; $name=mysql_real_escape_string($_post['name']); // echo $name . '<br>'; $empid=mysql_real_escape_string($_post['employeeid']); //echo $empid . '<br>'; $emailid=mysql_real_escape_string($_post['emailid']); //echo $emailid . '<br>'; $mobileno=mysql_real_escape_string($_post['mobileno']); $id=mysql_real_escape_string($_post['id']); // echo $id . '<br>'; $updateqry="update employee_details set staff_name='$name', employee_id='$empid', email_id='$emailid', mobile_no='$mobileno', department_id='$deptid', designation_id='$desgnid' staff_id=$id"; // echo $updateqry . '<br>'; mysqli_query($db, $updateqry); $_session['msg']="data updated successfully"; $deptid=0; $desgnid=0; $name=""; $empid=""; $emailid=""; $username=""; $password=""; $mobileno=""; $id=0; } //delete records if(isset($_get['delete'])) { $id= $_get['delete']; $delete=mysqli_query($db, "delete employee_details staff_id=$id"); $_session['msg']="deleted successfully"; $id=0; } //to staff details $staffdetailsresult=mysqli_query($db, "select * employee_details"); // if click on edit fetch data controls if(isset($_get['edit'])) { $id=$_get['edit']; $edit_state=true; $fetchresult=mysqli_query($db, "select * employee_details staff_id=$id"); $record=mysqli_fetch_array($fetchresult); $deptid=$record['department_id']; $desgnid =$record['designation_id']; ?> <script type="text/javascript"> //to load desingation on department function change_country_edit() { var xmlhttp=new xmlhttprequest(); xmlhttp.open("get", "staff_edit.php?dptid="+"<?php echo $deptid ?>"+"&desid="+"<?php echo $desgnid ?>" , false); xmlhttp.send(null); alert(xmlhttp.responsetext); document.getelementbyid("desgn").innerhtml=xmlhttp.responsetext; } </script> <?php echo '<script> change_country_edit(); </script>'; $name=$record['staff_name']; $empid=$record['employee_id']; $emailid=$record['email_id']; $username=$record['username']; $mobileno=$record['mobile_no']; } ?> <!doctype html> <html> <head> <title>staff master</title> <link rel="stylesheet" type="text/css" href="style.css"> <script type="text/javascript"> //to load desingation on department function change_country() { var xmlhttp=new xmlhttprequest(); xmlhttp.open("get", "ajax.php?dptid="+document.getelementbyid("dept").value , false); xmlhttp.send(null); document.getelementbyid("desgn").innerhtml=xmlhttp.responsetext; } // designation id , store in hidden field function changehiddeninput(objdropdown) { var objhidden = document.getelementbyid("designationid"); //alert(objdropdown.value); objhidden.value = objdropdown.value; } </script> </head> <body style="background-color:#000000 "> <?php if(isset($_session['msg'])): ?> <div class="msg"> <?php echo $_session['msg']; unset($_session['msg']); ?> </div> <?php endif ?> <table width="100%" style="color: #ffffff"> <tr> <td class="heading">staff master</td> </tr> <tr> <td> <table width="100%"> <tr> <td class="form1" valign="top"> <form action="staff_master.php" method="post"> <input type="hidden" name="id" value="<?php echo $id; ?>"/> <input type="hidden" id="designationid" name="designationid" /> <div class="input-group"> <div class="select-style"> <select name="dept" id="dept" onchange="change_country()"> <option value="-1">--select department--</option> <?php while($deptrow=mysqli_fetch_array($dresult)) { ?> <option value="<?php echo $deptrow['id']; ?>" <?php if ($deptrow['id'] == $deptid) echo "selected='selected'";?>><?php echo $deptrow['name']; ?></option> <?php } ?> </select> </div> <div class="input-group"> <div class="select-style"> <select name="desgn" id="desgn" onchange="changehiddeninput(this)"> <option value="-1" >--select designation--</option> </select> </div> </div> <div class="input-group"> <input type="text" name="name" placeholder="staff name" value="<?php echo $name ?>"/> </div> <div class="input-group"> <input type="text" name="employeeid" placeholder="employee id" value="<?php echo $empid ?>"/> </div> <div class="input-group"> <input type="text" name="emailid" placeholder="email id" value="<?php echo $emailid ?>"/> </div> <div class="input-group"> <input type="text" name="username" placeholder="user name" value="<?php echo $username ?>"/> </div> <div class="input-group"> <input type="password" name="password" placeholder="password" value="<?php echo $username ?>"/> </div> <div class="input-group"> <input type="text" name="mobileno" placeholder="mobile no." value="<?php echo $mobileno ?>"/> </div> <div class="input-group"> <?php if($edit_state == false): ?> <button type="submit" name="save" class="btn">save</button> <?php else: ?> <button type="submit" name="update" class="btn">update</button> <?php endif ?> </div> </form> </td> <td valign="top" align="center" class="form1" style="overflow: auto; height: 420px"> <table class="table1" align="center" width="100%"> <thead> <tr> <th style="text-align: center;">name</th> <th style="text-align: center;">employee id</th> <th style="text-align: center;">email id</th> <th style="text-align: center;">user name</th> <th style="text-align: center;">mobile no</th> <th style="text-align: center;">edit</th> <th style="text-align: center;">delete</th> </tr> </thead> <tbody> <?php while($row = mysqli_fetch_array($staffdetailsresult)) { ?> <tr> <td style="width: 100px; "><?php echo $row['staff_name']; ?></td> <td style="width: 100px;"><?php echo $row['employee_id']; ?></td> <td style="width: 100px;"><?php echo $row['email_id']; ?></td> <td style="width: 100px;"><?php echo $row['username']; ?></td> <td style="width: 100px;"><?php echo $row['mobile_no']; ?></td> <td style="width: 100px; text-align: center;"> <a href="staff_master.php?edit=<?php echo $row['staff_id']; ?>" style="color: #ffffff">edit</a> </td> <td style="width: 100px; text-align: center;"> <a href="staff_master.php?delete=<?php echo $row['staff_id']; ?>" style="color: #ffffff">delete</a> </td> </tr> <?php } ?> </tbody> </table> </td> </tr> </table> </td> </tr> </table> </body> </html> to load designation based department have used script , redirecting ajax.php. here code
<?php $db = mysqli_connect('localhost', 'root', '1234', 'employee'); if(isset($_get['dptid'])) { $deptid=$_get['dptid']; $dsgnresult=mysqli_query($db, "select * designation dept_id=$deptid"); echo "<select name='desgn' id='desgn'>"; echo "<option value='-1'>"; echo "--select designation--"; echo "</option>"; while($desgnrow=mysqli_fetch_array($dsgnresult)) { echo "<option value='"; echo $desgnrow['id']; echo "'>"; echo $desgnrow['name']; echo "</option>"; } echo "</select>"; } ?> then when click on edit button. calling same javascript little changes below code.
function change_country_edit() { //alert('in edit'); //alert('dept : '+<?php echo $deptid ?>); //alert('desi : '+<?php echo $desgnid ?>); var xmlhttp=new xmlhttprequest(); xmlhttp.open("get", "staff_edit.php?dptid="+"<?php echo $deptid ?>"+"&desid="+"<?php echo $desgnid ?>" , false); xmlhttp.send(null); alert(xmlhttp.responsetext); document.getelementbyid("desgn").innerhtml=xmlhttp.responsetext; } </script> staff_edit.php used load designation selected value after clicking edit button. , code below :
<?php $db = mysqli_connect('localhost', 'root', '1234', 'employee'); if(isset($_get['dptid']) && isset($_get['desid'])) { // echo "in first condition"; $deptid=$_get['dptid']; // echo 'dept : '.$deptid.'<br>'; $desgnid=$_get['desid']; // echo '$desgnid : '.$desgnid.'<br>'; $dsgnresult=mysqli_query($db, "select * designation dept_id=$deptid"); } ?> <!doctype html> <html> <head> <title>hello!</title> </head> <body> <select name="desgn" id="desgn" > <option value="-1">--select--</option> <?php while($deptrow=mysqli_fetch_array($dsgnresult)) { ?> <option value="<?php echo $deptrow['id']; ?>" ><?php echo $deptrow['name']; ?></option> <?php } ?> </select> </body> </html> this above code have used.searched many things , applied of no use. please me out of problem :( .
thank in advanced.
Comments
Post a Comment