Codeigniter File Upload and Database Insert In 1 form - php

Question

So I'm trying to insert in the database and upload a file. But when I'm trying to submit, it returns a server error.
The localhost page isn’t working
localhost is currently unable to handle this request.
HTTP ERROR 500
I think the problem is in the $this->upload->do_upload('userfile') because i tried to comment out from this part and display echo the config array and there's no error but when i tried to uncomment up to this part, the error shows.
Controller
public function add_now(){
$this->load->library('form_validation');
$this->form_validation->set_rules('Event_Name', 'Event Name', 'trim|strip_tags');
$this->form_validation->set_rules('Event_Start', 'Start Date', 'trim|strip_tags');
$this->form_validation->set_rules('Event_End', 'End Date', 'trim|strip_tags');
$this->form_validation->set_rules('Event_Location', 'Location', 'trim|strip_tags');
if($this->form_validation->run() == FALSE){
$this->add();
}
else{
$query = $this->events_model->do_upload();
if($query){
$this->session->set_flashdata('success', 'Successful!');
$this->index();
}
else{
if(!$this->session->flashdata('upload_error')){
$this->session->set_flashdata('failed', 'Failed!');
}
$this->add();
}
}
}
Model
public function do_upload(){
$config['upload_path'] = './resources/images/events_photo/temp/';
$config['allowed_types'] = 'gif|jpg|jpeg|png';
$config['file_name'] = uniqid().'.jpeg';
$config['overwrite'] = TRUE;
$this->load->library('upload', $config);
if(!$this->upload->do_upload('userfile')){
$this->session->set_flashdata('upload_error', $this->upload->display_errors());
}
}
View
<?php echo form_open_multipart('events/add_now'); ?>
<div class="panel-body">
<div class="row">
<div class="form-group">
<label class="control-label">Name</label>
<input type="text" class="form-control" name="Event_Name" value="<?php echo set_value('Event_Name'); ?>" placeholder="Enter Event Name">
<small class="text-danger"><?php echo form_error('Event_Name'); ?></small>
</div>
</div>
<div class="row">
<div class="col-sm-6">
<div class="form-group">
<label class="control-label">Start Date</label>
<input type="text" class="form-control" name="Event_Start" value="<?php echo set_value('Event_Start'); ?>" placeholder="Enter Start Date" onclick="this.type='datetime-local'" onblur="this.type='text'" min="<?php echo date('Y-m-d'); ?>">
<small class="text-danger"><?php echo form_error('Event_Start'); ?></small>
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<label class="control-label">End Date</label>
<input type="text" class="form-control" name="Event_End" value="<?php echo set_value('Event_End'); ?>" placeholder="Enter End Date" onclick="this.type='datetime-local'" onblur="this.type='text'" min="<?php echo date('Y-m-d'); ?>">
<small class="text-danger"><?php echo form_error('Event_End'); ?></small>
</div>
</div>
</div>
<div class="row">
<div class="col-sm-9">
<div class="form-group">
<label class="control-label">Location</label>
<input type="text" class="form-control" name="Event_Location" value="<?php echo set_value('Event_Location'); ?>" placeholder="Enter Event Location">
<small class="text-danger"><?php echo form_error('Event_Location'); ?></small>
</div>
</div>
</div>
<div class="row">
<textarea placeholder="Event Description" name="Event_Description" rows="10" class="form-control"></textarea>
</div>
<div class="row">
<div class="form-group">
<label class="control-label">Image Attachment (Optional)</label>
<input type="file" class="form-control" name="userfile" value="<?php echo set_value('userfile'); ?>" placeholder="Upload Image">
<?php if($this->session->flashdata('upload_error')): ?>
<small class="text-danger"><?php echo $this->session->flashdata('upload_error'); ?></small>
<?php endif; ?>
</div>
</div>
</div>
<div class="panel-footer text-right">
<button class="btn btn-success" type="submit">Submit</button>
</div>
</form>

Answer 1

First load the url helper in your controller...
$this->load->helper('url');
Then set the upload file path as:
$config['upload_path'] = base_url('resources/images/events_photo/temp/');
Try it might works.
And what about these two functions
$this->add();
$this->success();