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<?php

    namespace Inlm\Model;

    use LeanMapper\Entity;
    use LeanMapper\Fluent;
    use LeanMapperQuery\Query;


    trait TQueryableRepository
    {
        /**
         * Creates base query object
         * @return RepositoryQuery
         */
        public function query()
        {
            return new RepositoryQuery($this);
        }


        /**
         * Fetchs entities by Query object
         * @return Entity[]
         */
        public function find(Query $query)
        {
            return $this->createEntities($this->applyQuery($query)->fetchAll());
        }


        /**
         * Fetchs one entity by Query object
         * @return Entity|NULL
         */
        public function findOne(Query $query)
        {
            $row = $this->applyQuery($query)
                ->removeClause('limit')
                ->removeClause('offset')
                ->fetch();
            return $row ? $this->createEntity($row) : NULL;
        }


        /**
         * Fetchs count by Query object
         * @return int
         */
        public function findCount(Query $query)
        {
            return count($this->applyQuery($query));
        }


        /**
         * @return Fluent
         */
        protected function applyQuery(Query $query)
        {
            $fluent = $this->createFluent();
            $query->applyQuery($fluent, $this->mapper);
            return $fluent;
        }
    }