I have a condition in javascript that says if the text box is blank it would alert and return false, but it doesn't work instead it submits here is my view
frm_otherequips2.php
<form action="edit_delete_others2" method="POST" id='frm_otherequips2' name="frm_otherequips2">
<fieldset id="edit_other">
<legend>Inventory Details</legend>
<table>
<tr>
<?php $otherequips = $other->Equipment;
$otherdesc = $other->ItemDescription;
$otherID = $other->ID;
$otherserialnum = $other->SerialNumber;
?>
<td>Equipment</td>
<td><input type="text" id="txt_editotherequip" name="txt_editotherequip" value="<?php echo $otherequips ?>"/></td>
<td>Item Description</td>
<td><input type="text" id="txt_editotherdesc" name="txt_editotherdesc" value="<?php echo $otherdesc ?>"/></td>
<td style="visibility: hidden;"><input type="text" id="txt_editotherID" name="txt_editotherID" value="<?php echo $otherID ?>"/></td>
</tr>
<tr>
<td>Serial Number</td>
<td><input type="text" id="txt_editotherserialnum" name="txt_editotherserialnum" value="<?php echo $otherserialnum ?>"/></td>
</tr>
<tr>
<td><button class="btn_editother" id="btn_editother" name="btn_editother" type="submit" value="Edit" onclick="validate_edit_otherequip();">Edit</button></td>
</tr>
</table>
</fieldset>
</form>
and here is my javascript:
<script>
function validate_edit_otherequip(){
if(document.getElementById('txt_editotherequip').value === ""){
alert('Please Input Equipment!');
return false;
}
else if(document.getElementById('txt_editotherdesc').value === ""){
alert('Please Input Item Description');
return false;
}
else if(document.getElementById('txt_editotherserialnum').value === ""){
alert('Please Input Serial Number');
return false;
}
else{
var y;
if(confirm("Are you sure you want to save updated data?") === true){
var y = document.forms['frm_otherequips2'].submit();
}
else if(confirm("Are you sure you want to save updated data?") === false){
return false;
}
}
}
</script>
What I did is i put return false in controller, here is my controller:
public function edit_delete_others2($id){
$data_other['other'] = $this->inventory_model->other_search($id);
$this->load->view('homeview');
$this->load->view('frm_otherequips2', $data_other);
$this->load->view('footer_view');
if(!empty($_POST['btn_editother'])){
if($_POST['txt_editotherequip'] == "") {
return false;
}
else if($_POST['txt_editotherdesc'] == "") {
return false;
}
else if($_POST['txt_editotherserialnum'] == ""){
return false;
}
else{
$this->inventory_model->update_others($this->input->post());
redirect('inventorysys_controller/view_others', 'refresh');
}
}
}
But everytime i run it and I leave a blank textbox for example 'txt_editotherequip' is blank it posts the alert and then this error occur:
**A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: views/frm_otherequips2.php
Line Number: 10
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: views/frm_otherequips2.php
Line Number: 11
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: views/frm_otherequips2.php
Line Number: 12
A PHP Error was encountered
Severity: Notice
Message: Trying to get property of non-object
Filename: views/frm_otherequips2.php
Line Number: 13**
Please do help me on this one, I've been stuck with this for days. Thank you in advance for your help!
Make sure that the onclick event occurs, since you said that the form submits whereas in your code it should have popped up a confirm box or an alert on any case.
function validate_edit_otherequip(){
alert('works!');
....
}
Check for javascript errors.
Try using the flag variable and trim function in the controller.
$flag=1;
if(!empty($_POST['btn_editother'])){
if(trim($_POST['txt_editotherequip']) == "") {
$flag=0;
}
if(trim($_POST['txt_editotherdesc']) == "") {
$flag=0;
}
if(trim($_POST['txt_editotherserialnum']) == ""){
$flag=0;
}
if($flag == 0) return false;
else{
$this->inventory_model->update_others($this->input->post());
redirect('inventorysys_controller/view_others', 'refresh');
}
}
The error Trying to get property of non-object occurs when the model is either unable to fetch data or the data fetched is not an object at all.