PHP/CodeIgniter Example

codeigniter.php

public function create_offer(){
        $merchant = new Merchant();
        $merchant->where('id', 1);//TODO get currently logged in merchant
        $merchant->get();

        $this->load->library('form_validation');
        $this->form_validation->set_rules('description', 'Description', 'required');
        $this->form_validation->set_rules('from_time', 'From Time', 'required');
        $this->form_validation->set_rules('to_time', 'To Time', 'required');
        $this->form_validation->set_rules('deal', 'Deal', 'required');

        $fields = array();
        $deal = '';
        if (array_key_exists('deal', $this->input->post())){
            $deal = $this->input->post('deal');
            if ($deal != ''){
                $fields = $deal::$fields;
            }
        }

        if ($this->form_validation->run()){

            $deal_fields = array();
            foreach ($fields as $field_name => $field_value){
                $deal_fields[$field_name] = $this->input->post($field_name);
            }
            $offer = new Deal_Model();

            $offer->merchantId = $merchant->id;
            $offer->description = $this->input->post('description');
            $offer->from = getSqlDateFromPostData($this->input->post('from_time'));
            $offer->to = getSqlDateFromPostData($this->input->post('to_time'));
            $offer->details = serialize($deal_fields);

            $offer->save();

            $this->redirect("merchant/dashboard");
        }
        else {
            $context = $this->getBaseContext();
            $context['data'] = $this->input->post();
            $context['fields'] = $fields;
            $context['deal'] = $deal;
            $this->load->view('merchant/dashboard', $context);
        }
}