mirror of
https://git.sindominio.net/estibadores/wordpress.git
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226 lines
5.9 KiB
PHP
226 lines
5.9 KiB
PHP
<?php
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namespace SearchRegex;
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use SearchRegex\Result_Collection;
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use SearchRegex\Match;
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require_once __DIR__ . '/source.php';
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require_once __DIR__ . '/source-manager.php';
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require_once __DIR__ . '/match.php';
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require_once __DIR__ . '/match-context.php';
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require_once __DIR__ . '/match-column.php';
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require_once __DIR__ . '/search-flags.php';
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require_once __DIR__ . '/source-flags.php';
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/**
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* Perform a search
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*/
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class Search {
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/** @var String */
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private $search;
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/** @var Search_Source[] */
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private $sources = [];
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/** @var Search_Flags */
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private $flags;
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/**
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* Create a Search object, with a search value, an array of sources, and some search flags
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*
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* @param String $search_value The value to search for.
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* @param Array $sources Array of Search_Source objects. Only one is supported.
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* @param Search_Flags $flags Search flags.
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*/
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public function __construct( $search_value, array $sources, Search_Flags $flags ) {
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$this->search = $search_value;
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$this->flags = $flags;
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$this->sources = $sources;
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}
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/**
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* Get total number of matches and rows across each source
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*
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* @internal
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* @param Int $offset Page offset.
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* @return \WP_Error|Array<String,Int> Array of totals
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*/
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private function get_totals( $offset ) {
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$totals = [ 'rows' => 0 ];
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foreach ( $this->sources as $source ) {
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$rows = $source->get_total_rows();
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if ( is_wp_error( $rows ) && is_object( $rows ) ) {
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return $rows;
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}
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$totals['rows'] += intval( $rows, 10 );
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}
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// First request also returns the total matched
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if ( $offset === 0 ) {
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$totals['matched_rows'] = 0;
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$totals['matched_phrases'] = 0;
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foreach ( $this->sources as $source ) {
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if ( ! $this->flags->is_regex() ) {
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$matches = $source->get_total_matches( $this->search );
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if ( $matches instanceof \WP_Error ) {
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return $matches;
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}
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$totals['matched_rows'] += $matches['rows'];
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$totals['matched_phrases'] += $matches['matches'];
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}
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}
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}
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return $totals;
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}
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/**
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* Get the match data for a search
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*
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* @internal
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* @param Int $offset Page offset.
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* @param Int $limit Page limit.
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* @return \WP_Error|Array Data array
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*/
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private function get_data( $offset, $limit ) {
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if ( $this->flags->is_regex() ) {
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return $this->sources[0]->get_all_rows( $this->search, $offset, $limit );
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}
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return $this->sources[0]->get_matched_rows( $this->search, $offset, $limit );
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}
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/**
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* Get a single database row
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*
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* @param int $row_id Row ID to return.
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* @param Replace $replacer The Replace object used when replacing data.
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* @return \WP_Error|Array Return a single database row, or WP_Error on error
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*/
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public function get_row( $row_id, Replace $replacer ) {
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global $wpdb;
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$row = $this->sources[0]->get_row( $row_id );
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// Error
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if ( is_wp_error( $row ) ) {
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return new \WP_Error( 'searchregex_database', $wpdb->last_error );
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}
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return $this->rows_to_results( [ $row ], $replacer );
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}
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/**
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* Perform the search, returning a result array that contains the totals, the progress, and an array of Result objects
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*
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* @param Replace $replacer The replacer which performs any replacements.
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* @param int $offset Current page offset.
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* @param int $per_page Per page limit.
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* @param int $limit Max number of results.
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* @return Array|\WP_Error Array containing `totals`, `progress`, and `results`
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*/
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public function get_results( Replace $replacer, $offset, $per_page, $limit = 0 ) {
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// TODO return totals of each source
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$totals = $this->get_totals( $offset );
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$rows = $this->get_data( $offset, $per_page );
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if ( $totals instanceof \WP_Error ) {
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return $totals;
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}
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if ( $rows instanceof \WP_Error ) {
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return $rows;
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}
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$results = $this->rows_to_results( (array) $rows, $replacer );
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if ( $results instanceof \WP_Error ) {
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return $results;
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}
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$previous = max( 0, $offset - $per_page );
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// We always go in $per_page groups, but we need to limit if we only need a few more to fill a result set
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if ( $limit > 0 && $limit <= count( $results ) ) {
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$next = min( $offset + $limit, $totals['rows'] );
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} else {
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$next = min( $offset + $per_page, $totals['rows'] ); // TODO this isn't going to end in simple search
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}
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$results = array_slice( $results, 0, $limit === 0 ? $per_page : $limit );
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if ( $next === $offset ) {
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$next = false;
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}
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if ( $previous === $offset ) {
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$previous = false;
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}
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return [
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'results' => $results,
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'totals' => $totals,
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'progress' => [
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'current' => $offset,
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'rows' => count( $results ),
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'previous' => $previous,
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'next' => $next,
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],
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];
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}
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/**
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* Convert database rows into Result objects
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*
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* @internal
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* @param Array $rows Array of row data.
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* @param Replace $replacer Replace object.
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* @return Result[]|\WP_Error Array of results
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*/
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private function rows_to_results( $rows, Replace $replacer ) {
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$results = [];
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$source = $this->sources[0];
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foreach ( $rows as $row ) {
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$columns = array_keys( $row );
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$match_columns = [];
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$row_id = 0;
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foreach ( array_slice( $columns, 1 ) as $column ) {
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$row_id = intval( array_values( $row )[0], 10 );
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$replacement = $replacer->get_replace_positions( $this->search, $row[ $column ] );
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$contexts = Match::get_all( $this->search, $this->flags, $replacement, $row[ $column ] );
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if ( count( $contexts ) > 0 ) {
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$match_columns[] = new Match_Column( $column, $source->get_column_label( $column ), $replacer->get_global_replace( $this->search, $row[ $column ] ), $contexts );
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}
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}
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if ( count( $match_columns ) > 0 && $row_id > 0 ) {
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$results[] = new Result( $row_id, $source, $match_columns, $row );
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}
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}
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return $results;
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}
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/**
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* Convert a set of search results into JSON
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*
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* @param Array $results Array of Results.
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* @return Array JSON array
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*/
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public function results_to_json( array $results ) {
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$json = [];
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foreach ( $results as $result ) {
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$json[] = $result->to_json();
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}
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return $json;
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}
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}
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