Codeigniter "Unable to find validation rules" when using $this->form

I can't figure out why I'm getting the error "Unable to find validation rules" in the php logs when I set the rules in the controller using $this->form_validation->set_rules.

Here is my code in the view:

<div id="yearDiv" class="form-group">
   <div class="form-group">
       <label for="yearList">Study Years</label>
       <input type="text" class="form-control" id="yearList">
    </div> 
    <div class="form-group row">
       <div class="col-md-2">
           <label for="startYearBox">Start Year</label>
           <input type="text" class="form-control" id="startYearBox">
       </div>
       <div class="col-md-2">
           <label for="endYearBox">End Year</label>
           <input type="text" class="form-control" id="endYearBox">
       </div> 
       <div class="col-md-8"><small>(Use present for End Year if study is ongoing.)</small>
       </div>
   </div>                
</div> 

<script type='text/javascript'>
var data = {};
data['years']={};

data['years']['intStartYr']= $('#startYearBox').val();
data['years']['intEndYr']= $('#endYearBox').val();
           
var posturl = '<?php echo site_url('manage/climate_indicators/updateStudyYears');?>'
         
$.when($.ajax({type: "POST", url: posturl, data:data, dataType: 'json'})).done(function(result) {
     console.log(result.status);
});
</script>

And my php code in the controller:

public function updateStudyYears() {
        
        if (!$this->input->post() OR !$this->input->is_ajax_request() ){
            echo json_encode(array('status'=>'failed','errors'=>array('Access Mode'=>'Disallowed')));
            exit();
        }
        else {
            $postData = $this->input->post(NULL, true);
            
            $yearArray = $postData['years'];
            
            if(empty($yearArray)) {
                echo json_encode(array('status'=>'failed', 'errors'=>'Years are empty'));
                exit();
            }    
            $this->form_validation->set_rules('years[intStartYr]', 'Start Year', 'required',
                    array('required' => 'Start year must have a valid year.'));
            $this->form_validation->set_rules('years[intEndYr]', 'End Year', 'required',
                    array('required' => 'End year must have a valid year.'));
            
            if ($this->form_validation->run() === FALSE) {  
                $validationErrs = $this->form_validation->error_array();
            
                echo json_encode(array('status'=>'form-errors', 'valErrs'=>$validationErrs));                
                exit;
            }
            else {                        
                $status = $this->climate_indicators_model->setStudyYears($yearArray);            
                if ($status) {
                    echo json_encode(array('status'=>'success', 'message'=>'Study year information successfully updated.'));                    
                }
                else echo json_encode(array('status'=>'failed', 'errors'=>'Db error on update'));
            }
            exit();
        }
    }
</script>

Thank you for your help! Let me know if you have any further questions

CodePudding user response：

When you are sending parameter in post it has single quotes around your parameter. In validation rule you are checking parameter without single quotes just change the set_rule as below.

$this->form_validation->set_rules("years['intStartYr']", 'Start Year', 'required',
                    array('required' => 'Start year must have a valid year.'));

also inspect your ajax request how parameters are going to server.

CodePudding user response：

why not call the name value in the form for validation

<div class="form-group">
       <label for="yearList">Study Years</label>
       <input type="text" class="form-control" id="yearList" name="yearlist">
    </div> 
    <div class="form-group row">
       <div class="col-md-2">
           <label for="startYearBox">Start Year</label>
           <input type="text" class="form-control" id="startYearBox" name="yearbox">
       </div>
`
$this->form_validation->set_rules('yearlist', 'Start Year', 'required',
                    array('required' => 'Start year must have a valid year.'));
            $this->form_validation->set_rules('yearbox', 'End Year', 'required',
                    array('required' => 'End year must have a valid year.'));