private function getMetaAndAliases()
    {
        $arr = explode('.', $this->field);
        $meta = $this->getClassMetadata();
        $metaAnterior = [];
        $parent = '';
        $alias = '';

        for ($i = 0; $i <= $this->position; $i++) {
            $metaAnterior = $meta;

            if ($meta->hasAssociation($arr[$i])) {
                $class = $meta->getAssociationTargetClass($arr[$i]);
            } elseif (count($meta->subClasses) > 0) {
                $temp = $this->getSubClassFields($meta, $arr[$i]);
                if (!empty($temp['meta'])) {
                    $class = $temp['table'];
                }
            }

            $meta = $this->em->getClassMetadata($class);

            if ($i < $this->position) {
                $parent .= $parent != '' ? '_' : '';
                $parent .= $arr[$i];
            }
            if ($i == $this->position) {
                $alias .= $parent;
                $alias .= $parent != '' ? '_' : '';
                $alias .= $arr[$i];
            }
        }

        if ($parent == '' && $alias != '') {
            $parent = self::DEFAULT_TABLE_ALIAS;
        }
        if ($alias == '') {
            $alias = self::DEFAULT_TABLE_ALIAS;
        }

        return [
            'meta'        => $meta,
            'parentMeta'  => $metaAnterior,
            'alias'       => $alias,
            'parentAlias' => $parent,
        ];
    }
private function getMetaAndAliases()
    {
        $arr = explode('.', $this->field);
        $meta = $this->getClassMetadata();
        $metaAnterior = [];
        $parent = '';
        $alias = '';

        for ($i = 0; $i <= $this->position; $i++) {
            $metaAnterior = $meta;

            if ($meta->hasAssociation($arr[$i])) {
                $class = $meta->getAssociationTargetClass($arr[$i]);
            } elseif (count($meta->subClasses) > 0) {
                $temp = $this->getSubClassFields($meta, $arr[$i]);
                if (!empty($temp['meta'])) {
                    $class = $temp['table'];
                }
            }

            $meta = $this->em->getClassMetadata($class);

            if ($i < $this->position) {
                $parent .= $parent != '' ? '_' : '';
                $parent .= $arr[$i];
            }
            if ($i == $this->position) {
                $alias .= $parent;
                $alias .= $parent != '' ? '_' : '';
                $alias .= $arr[$i];
            }
        }

        if ($parent == '' && $alias != '') {
            $parent = self::DEFAULT_TABLE_ALIAS;
        }
        if ($alias == '') {
            $alias = self::DEFAULT_TABLE_ALIAS;
        }

        return [
            'meta'        => $meta,
            'parentMeta'  => $metaAnterior,
            'alias'       => $alias,
            'parentAlias' => $parent,
        ];
    }
private function getMetaAndAliases ( ) { $ arr = explode ( '.' , $ this -> field ) ; $ meta = $ this -> getClassMetadata ( ) ; $ metaAnterior = [ ] ; $ parent = '' ; $ alias = '' ; for ( $ i = 0 ; $ i <= $ this -> position ; $ i ++ ) { $ metaAnterior = $ meta ; if ( $ meta -> hasAssociation ( $ arr [ $ i ] ) ) { $ class = $ meta -> getAssociationTargetClass ( $ arr [ $ i ] ) ; } elseif ( count ( $ meta -> subClasses ) > 0 ) { $ temp = $ this -> getSubClassFields ( $ meta , $ arr [ $ i ] ) ; if ( ! empty ( $ temp [ 'meta' ] ) ) { $ class = $ temp [ 'table' ] ; } } $ meta = $ this -> em -> getClassMetadata ( $ class ) ; if ( $ i < $ this -> position ) { $ parent .= $ parent != '' ? '_' : '' ; $ parent .= $ arr [ $ i ] ; } if ( $ i == $ this -> position ) { $ alias .= $ parent ; $ alias .= $ parent != '' ? '_' : '' ; $ alias .= $ arr [ $ i ] ; } } if ( $ parent == '' && $ alias != '' ) { $ parent = self :: DEFAULT_TABLE_ALIAS ; } if ( $ alias == '' ) { $ alias = self :: DEFAULT_TABLE_ALIAS ; } return [ 'meta' => $ meta , 'parentMeta' => $ metaAnterior , 'alias' => $ alias , 'parentAlias' => $ parent , ] ; }
Get the classMetadata and alias from the current position in the field.

@return string
Get the classMetadata and alias from the current position in the field .