/**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     // $rules->add($rules->isUnique(['email']));
     // $rules->add($rules->isUnique(['username']));
     $rules->add($rules->existsIn(['listing_id'], 'Listings'));
     return $rules;
 }

 public function buildRules(RulesChecker $rules)
 {
     $rules->add([$this, 'ruleRoleChange']);
     $rules->addUpdate([$this, 'ruleMatchingModified']);
     $rules->addDelete([$this, 'ruleNoCharacters']);
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->isUnique(['username']));
     //Same email should be allowed in contact form
     //$rules->add($rules->isUnique(['email']));
     return $rules;
 }

 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->existsIn(['client_info_id'], 'ClientInfos'));
     $rules->add($rules->existsIn(['client_contact_id'], 'ClientContacts'));
     $rules->add($rules->existsIn(['client_vehicle_id'], 'ClientVehicles'));
     $rules->add($rules->existsIn(['client_trip_path_id'], 'ClientTripPaths'));
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->existsIn(['parent_id'], 'ParentDispositions'));
     $rules->add($rules->existsIn(['letter_id'], 'Letters'));
     $rules->add($rules->existsIn(['user_id'], 'Users'));
     $rules->add($rules->existsIn(['recipient_id'], 'Recipients'));
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->isUnique(['username']));
     $rules->add($rules->isUnique(['email']));
     $rules->add($rules->existsIn(['department_id'], 'Departments'));
     $rules->add($rules->existsIn(['user_id'], 'Users'));
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->isUnique(['username']));
     $rules->add($rules->isUnique(['email']));
     $rules->add($rules->isUnique(['id']));
     $rules->add($rules->existsIn(['usertypes_id'], 'Usertypes'));
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->isUnique(['username']));
     $rules->add($rules->existsIn(['city_id'], 'Cities'));
     $rules->add($rules->existsIn(['state_id'], 'States'));
     $rules->add($rules->existsIn(['role_id'], 'Roles'));
     return $rules;
 }

 /**
  * Returns a rules checker object that will be used for validating
  * application integrity.
  *
  * @param \Cake\ORM\RulesChecker $rules The rules object to be modified.
  * @return \Cake\ORM\RulesChecker
  */
 public function buildRules(RulesChecker $rules)
 {
     $rules->add($rules->existsIn(['request_id'], 'Requests'));
     $rules->add($rules->existsIn(['resource_id'], 'Resources'));
     $rules->add($rules->existsIn(['service_id'], 'Services'));
     $rules->add($rules->isUnique(['request_id', 'resource_id', 'service_id']));
     return $rules;
 }