Postback problem? Not getting data back from DB
-
23-09-2019 - |
Question
I'm not getting back data from my DB like I'm expecting. I know that I can get data from the DB because I have other functions working. With this page, what I'm trying to do is the following:
If no postback, then I would like it to echo "No Category Selected"
If a category has been chosen, then I would like for it to get that data from the DB and show it on the page. I'm sure I can do this all in one view, I'm just not doing something right. Can someone help please?
the error i'm getting is:
A PHP Error was encountered Severity: Notice Message: Trying to get property of non-object Filename: views/category_view.php Line Number: 25
as for db schema:
table: 'business' id, busname, busowner, busaddress, busicyt, busstate, buszip, busphone, webaddress, category, featured, userid.
table: 'category' id, catname, catdesc.
table: 'photos' id, photoname, photolocation, busid, userid.
table: 'specials' id, specname, specdesc, busid, userid.
table: 'videos' id, title, link, busid.
Pastebin: http://pastebin.com/AQqcvnAb
Solution
Not sure at all what exactly is or isn't working for you. I tried this locally, and It is echoing "no category selected" correctly.
View:
<?php
echo form_open('/site/categories');
echo form_fieldset(); ?>
<legend>Choose the Category of Business you are interested in.</legend>
<select name="catSelect">
<?php
foreach ($catList->result() as $row){
echo '<option value='.$row->id.'>'.$row->catname.'</option>';
}
echo form_submit('submit', 'Submit');
echo form_fieldset_close();
echo form_close();
?>
<table id="businessTable" class="tablesorter">
<thead><tr><th>Business Name</th><th>Photos</th><th>Videos</th><th>Specials</th></tr></thead>
<?php
if(count($serviceVendors) > 0){
foreach ($serviceVendors as $row){
echo '<tr><td>'.$row->busname.'</td><td>';
if(isset($row->photoname)){
echo "photoname is set";
}else{
echo "photoname not set";
}
echo '</td><td>';
if(isset($row->title)){
echo "title set";
}else{
echo "title not set";
}
echo '</td><td>';
if(isset($row->specname)){
echo "specname set";
}else{
echo "specname not set";
}
echo '</td></tr>';
}
}else{
echo "no category selected";
}
?>
</table>
If you can be a little more specific (and post a db schema), I'll try harder.
OK. The problem is in your category_view:
<?php if(count($businessList) > 0) : foreach ($businessList as $svrow): ?>
needs to be:
<?php if(count($businessList) > 0) : foreach ($businessList->result() as $svrow): ?>
without the ->result()
identifier it doesn't assign the object to svrow.
So with this line, in place echo $svrow->busname;
will echo the business name as expected.