form not adding input data into db table - php

Question

Im working on a Opencart project and Im having trouble getting input data into db table. Currently when i submit it enters an empty record into the db.
I have a form that has several inputs and a save button. The query from the model works just fine when entered in phpmyadmin so Im having issues between the view and controller. This is a large pr0ject is overly confusing to me. Any help would be appreciated
html:
" class="btn btn-primary">
<form method="post" enctype="multipart/form-data" id="form-campaign" class="form-horizontal">
<div class="form-group">
<div class="col-sm-5 col-sm-push-1 form-group required>
<label class="col-sm-2 control-label" for="input-campaign-name"><?php echo $entry_name; ?></label>
<input type="text" name="name" value="" placeholder="<?php echo $entry_name; ?>" id="input-campaign-name" class="form-control" />
<?php if (isset($error_name[$language['language_id']])) { ?>
<div class="text-danger"><?php echo $error_name[$language['language_id']]; ?></div>
<?php } ?>
</div>
</div>
<div class="col-sm-5 col-sm-push-1 form-group required>
<label class="col-sm-2 control-label" for="input-campaign-goal"><?php echo $entry_goal; ?></label>
<input type="text" name="goal" value="" placeholder="<?php echo $entry_goal; ?>" id="input-campaign-goal" class="form-control" />
<?php if (isset($error_name[$language['language_id']])) { ?>
<div class="text-danger"><?php echo $error_name[$language['language_id']]; ?></div>
<?php } ?>
</div>
</div>
</form>
php: controller
public function add() {
$this->load->language('campaigns/campaign');
$this->document->setTitle($this->language->get('heading_title'));
$this->load->model('campaigns/campaign');
if (($this->request->server['REQUEST_METHOD'] == 'POST')) {
$this->model_campaigns_campaign->addCampaign($this->request->post);
$this->session->data['success'] = $this->language->get('text_success');
$url = '';
if (isset($this->request->get['filter_campaign_id'])) {
$url .= '&filter_campaign_id=' . $this->request->get['filter_campaign_id'];
}
if (isset($this->request->get['filter_campaign_name'])) {
$url .= '&filter_campaign_name=' . urlencode(html_entity_decode($this->request->get['filter_campaign_name'], ENT_QUOTES, 'UTF-8'));
}
if (isset($this->request->get['filter_campaign_goal'])) {
$url .= '&filter_campaign_goal=' . $this->request->get['filter_campaign_goal'];
}
if (isset($this->request->get['order'])) {
$url .= '&order=' . $this->request->get['order'];
}
if (isset($this->request->get['page'])) {
$url .= '&page=' . $this->request->get['page'];
}
$this->response->redirect($this->url->link('campaigns/campaign', 'token=' . $this->session->data['token'] . $url, true));
}
$this->getForm();
}
php: model
public function addCampaign() {
$this->db->query("INSERT INTO " . DB_PREFIX . "campaigns SET campaign_name = '" . $this->db->escape($data['campaign_name']) . "', campaign_giving_goal = '" . (float)$data['campaign_giving_goal']
. "', campaign_giving_count_goal = '" . (float)$data['campaign_giving_count_goal'] . "', campaign_owner = '" . $this->db->escape($data['campaign_owner']). "'");
$this->cache->delete('campaign');
return $campaign_id;
}