/**
  * @param SiteModel $site
  * @param $fields
  * @param UserAccountModel $user As opposed to other DBAccess classes, User can not be NULL.
  * @throws Exception
  * @throws \Exception
  */
 public function update(SiteModel $site, $fields, UserAccountModel $user)
 {
     $alreadyInTransaction = $this->db->inTransaction();
     // Make Information Data
     $fieldsSQL1 = array();
     $fieldsParams1 = array('id' => $site->getId());
     foreach ($fields as $field) {
         $fieldsSQL1[] = " " . $field . "=:" . $field . " ";
         if ($field == 'title') {
             $fieldsParams1['title'] = substr($site->getTitle(), 0, VARCHAR_COLUMN_LENGTH_USED);
         } else {
             if ($field == 'slug') {
                 $fieldsParams1['slug'] = substr($site->getSlug(), 0, VARCHAR_COLUMN_LENGTH_USED);
                 $fieldsSQL1[] = " slug_canonical=:slug_canonical ";
                 $fieldsParams1['slug_canonical'] = substr(SiteModel::makeCanonicalSlug($site->getSlug()), 0, VARCHAR_COLUMN_LENGTH_USED);
             } else {
                 if ($field == 'description_text') {
                     $fieldsParams1['description_text'] = $site->getDescriptionText();
                 } else {
                     if ($field == 'footer_text') {
                         $fieldsParams1['footer_text'] = $site->getFooterText();
                     } else {
                         if ($field == 'is_web_robots_allowed') {
                             $fieldsParams1['is_web_robots_allowed'] = $site->getIsWebRobotsAllowed() ? 1 : 0;
                         } else {
                             if ($field == 'is_closed_by_sys_admin') {
                                 $fieldsParams1['is_closed_by_sys_admin'] = $site->getIsClosedBySysAdmin() ? 1 : 0;
                             } else {
                                 if ($field == 'closed_by_sys_admin_reason') {
                                     $fieldsParams1['closed_by_sys_admin_reason'] = $site->getClosedBySysAdminReason();
                                 } else {
                                     if ($field == 'is_listed_in_index') {
                                         $fieldsParams1['is_listed_in_index'] = $site->getIsListedInIndex() ? 1 : 0;
                                     } else {
                                         if ($field == 'prompt_emails_days_in_advance') {
                                             $fieldsParams1['prompt_emails_days_in_advance'] = $site->getPromptEmailsDaysInAdvance();
                                         }
                                     }
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }
     // Make History Data
     $fieldsSQL2 = array('site_id', 'user_account_id', 'created_at');
     $fieldsSQLParams2 = array(':site_id', ':user_account_id', ':created_at');
     $fieldsParams2 = array('site_id' => $site->getId(), 'user_account_id' => $user ? $user->getId() : null, 'created_at' => $this->timesource->getFormattedForDataBase());
     foreach ($this->possibleFields as $field) {
         if (in_array($field, $fields) || $field == 'title') {
             $fieldsSQL2[] = " " . $field . " ";
             $fieldsSQLParams2[] = " :" . $field . " ";
             if ($field == 'title') {
                 $fieldsParams2['title'] = substr($site->getTitle(), 0, VARCHAR_COLUMN_LENGTH_USED);
             } else {
                 if ($field == 'slug') {
                     $fieldsParams2['slug'] = substr($site->getSlug(), 0, VARCHAR_COLUMN_LENGTH_USED);
                     $fieldsSQL2[] = " slug_canonical  ";
                     $fieldsSQLParams2[] = " :slug_canonical  ";
                     $fieldsParams2['slug_canonical'] = substr(SiteModel::makeCanonicalSlug($site->getSlug()), 0, VARCHAR_COLUMN_LENGTH_USED);
                 } else {
                     if ($field == 'description_text') {
                         $fieldsParams2['description_text'] = $site->getDescriptionText();
                     } else {
                         if ($field == 'footer_text') {
                             $fieldsParams2['footer_text'] = $site->getFooterText();
                         } else {
                             if ($field == 'is_web_robots_allowed') {
                                 $fieldsParams2['is_web_robots_allowed'] = $site->getIsWebRobotsAllowed() ? 1 : 0;
                             } else {
                                 if ($field == 'is_closed_by_sys_admin') {
                                     $fieldsParams2['is_closed_by_sys_admin'] = $site->getIsClosedBySysAdmin() ? 1 : 0;
                                 } else {
                                     if ($field == 'closed_by_sys_admin_reason') {
                                         $fieldsParams2['closed_by_sys_admin_reason'] = $site->getClosedBySysAdminReason();
                                     } else {
                                         if ($field == 'is_listed_in_index') {
                                             $fieldsParams2['is_listed_in_index'] = $site->getIsListedInIndex() ? 1 : 0;
                                         } else {
                                             if ($field == 'prompt_emails_days_in_advance') {
                                                 $fieldsParams2['prompt_emails_days_in_advance'] = $site->getPromptEmailsDaysInAdvance();
                                             }
                                         }
                                     }
                                 }
                             }
                         }
                     }
                 }
             }
             $fieldsSQL2[] = " " . $field . "_changed ";
             $fieldsSQLParams2[] = " 0 ";
         } else {
             $fieldsSQL2[] = " " . $field . "_changed ";
             $fieldsSQLParams2[] = " -2 ";
         }
     }
     try {
         if (!$alreadyInTransaction) {
             $this->db->beginTransaction();
         }
         // Information SQL
         $stat = $this->db->prepare("UPDATE site_information  SET " . implode(",", $fieldsSQL1) . " WHERE id=:id");
         $stat->execute($fieldsParams1);
         // History SQL
         $stat = $this->db->prepare("INSERT INTO site_history (" . implode(",", $fieldsSQL2) . ") VALUES (" . implode(",", $fieldsSQLParams2) . ")");
         $stat->execute($fieldsParams2);
         if (!$alreadyInTransaction) {
             $this->db->commit();
         }
     } catch (Exception $e) {
         if (!$alreadyInTransaction) {
             $this->db->rollBack();
         }
         throw $e;
     }
 }