WordPressを読む　27-3 /blog/wp-includes/query.php 3

2014/11/29 2014/12/11

1 /blog/wp-includes/query.php 3
2 WP_Query::init_query_flags()
3 WP_Query::init()
4 WP_Query::parse_query_vars()
5 WP_Query::fill_query_vars()
6 WP_Query::parse_query()

/blog/wp-includes/query.php 3

WP_Query::init_query_flags()

	/**
	 * Resets query flags to false.
	 *
	 * The query flags are what page info WordPress was able to figure out.
	 *
	 * @since 2.0.0
	 * @access private
	 */
	private function init_query_flags() {
		$this->is_single = false;
		$this->is_preview = false;
		$this->is_page = false;
		$this->is_archive = false;
		$this->is_date = false;
		$this->is_year = false;
		$this->is_month = false;
		$this->is_day = false;
		$this->is_time = false;
		$this->is_author = false;
		$this->is_category = false;
		$this->is_tag = false;
		$this->is_tax = false;
		$this->is_search = false;
		$this->is_feed = false;
		$this->is_comment_feed = false;
		$this->is_trackback = false;
		$this->is_home = false;
		$this->is_404 = false;
		$this->is_comments_popup = false;
		$this->is_paged = false;
		$this->is_admin = false;
		$this->is_attachment = false;
		$this->is_singular = false;
		$this->is_robots = false;
		$this->is_posts_page = false;
		$this->is_post_type_archive = false;
	}

/**

* Resets query flags to false.

* The query flags are what page info WordPress was able to figure out.

* @since 2.0.0

* @access private

private function init_query_flags() {

$this->is_single = false;

$this->is_preview = false;

$this->is_page = false;

$this->is_archive = false;

$this->is_date = false;

$this->is_year = false;

$this->is_month = false;

$this->is_day = false;

$this->is_time = false;

$this->is_author = false;

$this->is_category = false;

$this->is_tag = false;

$this->is_tax = false;

$this->is_search = false;

$this->is_feed = false;

$this->is_comment_feed = false;

$this->is_trackback = false;

$this->is_home = false;

$this->is_404 = false;

$this->is_comments_popup = false;

$this->is_paged = false;

$this->is_admin = false;

$this->is_attachment = false;

$this->is_singular = false;

$this->is_robots = false;

$this->is_posts_page = false;

$this->is_post_type_archive = false;

}

WP_Query::init()

	/**
	 * Initiates object properties and sets default values.
	 *
	 * @since 1.5.0
	 * @access public
	 */
	public function init() {
		unset($this->posts);
		unset($this->query);
		$this->query_vars = array();
		unset($this->queried_object);
		unset($this->queried_object_id);
		$this->post_count = 0;
		$this->current_post = -1;
		$this->in_the_loop = false;
		unset( $this->request );
		unset( $this->post );
		unset( $this->comments );
		unset( $this->comment );
		$this->comment_count = 0;
		$this->current_comment = -1;
		$this->found_posts = 0;
		$this->max_num_pages = 0;
		$this->max_num_comment_pages = 0;

		$this->init_query_flags();
	}

/**

* Initiates object properties and sets default values.

* @since 1.5.0

* @access public

public function init() {

unset($this->posts);

unset($this->query);

$this->query_vars = array();

unset($this->queried_object);

unset($this->queried_object_id);

$this->post_count = 0;

$this->current_post = -1;

$this->in_the_loop = false;

unset( $this->request );

unset( $this->post );

unset( $this->comments );

unset( $this->comment );

$this->comment_count = 0;

$this->current_comment = -1;

$this->found_posts = 0;

$this->max_num_pages = 0;

$this->max_num_comment_pages = 0;

$this->init_query_flags();

}

WP_Query::parse_query_vars()

	/**
	 * Reparse the query vars.
	 *
	 * @since 1.5.0
	 * @access public
	 */
	public function parse_query_vars() {
		$this->parse_query();
	}

/**

* Reparse the query vars.

* @since 1.5.0

* @access public

public function parse_query_vars() {

$this->parse_query();

}

WP_Query::fill_query_vars()

	/**
	 * Fills in the query variables, which do not exist within the parameter.
	 *
	 * @since 2.1.0
	 * @access public
	 *
	 * @param array $array Defined query variables.
	 * @return array Complete query variables with undefined ones filled in empty.
	 */
	public function fill_query_vars($array) {
		$keys = array(
			'error'
			, 'm'
			, 'p'
			, 'post_parent'
			, 'subpost'
			, 'subpost_id'
			, 'attachment'
			, 'attachment_id'
			, 'name'
			, 'static'
			, 'pagename'
			, 'page_id'
			, 'second'
			, 'minute'
			, 'hour'
			, 'day'
			, 'monthnum'
			, 'year'
			, 'w'
			, 'category_name'
			, 'tag'
			, 'cat'
			, 'tag_id'
			, 'author'
			, 'author_name'
			, 'feed'
			, 'tb'
			, 'paged'
			, 'comments_popup'
			, 'meta_key'
			, 'meta_value'
			, 'preview'
			, 's'
			, 'sentence'
			, 'fields'
			, 'menu_order'
		);

		foreach ( $keys as $key ) {
			if ( !isset($array[$key]) )
				$array[$key] = '';
		}

		$array_keys = array( 'category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',
			'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'post_parent__in', 'post_parent__not_in',
			'author__in', 'author__not_in' );

		foreach ( $array_keys as $key ) {
			if ( !isset($array[$key]) )
				$array[$key] = array();
		}
		return $array;
	}

/**

* Fills in the query variables, which do not exist within the parameter.

* @since 2.1.0

* @access public

* @param array $array Defined query variables.

* @return array Complete query variables with undefined ones filled in empty.

public function fill_query_vars($array) {

$keys = array(

'error'

, 'm'

, 'p'

, 'post_parent'

, 'subpost'

, 'subpost_id'

, 'attachment'

, 'attachment_id'

, 'name'

, 'static'

, 'pagename'

, 'page_id'

, 'second'

, 'minute'

, 'hour'

, 'day'

, 'monthnum'

, 'year'

, 'w'

, 'category_name'

, 'tag'

, 'cat'

, 'tag_id'

, 'author'

, 'author_name'

, 'feed'

, 'tb'

, 'paged'

, 'comments_popup'

, 'meta_key'

, 'meta_value'

, 'preview'

, 's'

, 'sentence'

, 'fields'

, 'menu_order'

);

foreach ( $keys as $key ) {

if ( !isset($array[$key]) )

$array[$key] = '';

}

$array_keys = array( 'category__in', 'category__not_in', 'category__and', 'post__in', 'post__not_in',

'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'post_parent__in', 'post_parent__not_in',

'author__in', 'author__not_in' );

foreach ( $array_keys as $key ) {

if ( !isset($array[$key]) )

$array[$key] = array();

}

return $array;

}

WP_Query::parse_query()

	/**
	 * Parse a query string and set query type booleans.
	 *
	 * @since 1.5.0
	 * @access public
	 *
	 * @param string|array $query {
	 *     Optional. Array or string of Query parameters.
	 *
	 *     @type int          $attachment_id           Attachment post ID. Used for 'attachment' post_type.
	 *     @type int|string   $author                  Author ID, or comma-separated list of IDs.
	 *     @type string       $author_name             User 'user_nicename'.
	 *     @type array        $author__in              An array of author IDs to query from.
	 *     @type array        $author__not_in          An array of author IDs not to query from.
	 *     @type bool         $cache_results           Whether to cache post information. Default true.
	 *     @type int|string   $cat                     Category ID or comma-separated list of IDs (this or any children).
	 *     @type array        $category__and           An array of category IDs (AND in).
	 *     @type array        $category__in            An array of category IDs (OR in, no children).
	 *     @type array        $category__not_in        An array of category IDs (NOT in).
	 *     @type string       $category_name           Use category slug (not name, this or any children).
	 *     @type int          $comments_per_page       The number of comments to return per page.
	 *                                                 Default 'comments_per_page' option.
	 *     @type int|string   $comments_popup          Whether the query is within the comments popup. Default empty.
	 *     @type array        $date_query              An associative array of WP_Date_Query arguments.
	 *                                                 {@see WP_Date_Query::__construct()}
	 *     @type int          $day                     Day of the month. Default empty. Accepts numbers 1-31.
	 *     @type bool         $exact                   Whether to search by exact keyword. Default false.
	 *     @type string|array $fields                  Which fields to return. Single field or all fields (string),
	 *                                                 or array of fields. 'id=>parent' uses 'id' and 'post_parent'.
	 *                                                 Default all fields. Accepts 'ids', 'id=>parent'.
	 *     @type int          $hour                    Hour of the day. Default empty. Accepts numbers 0-23.
	 *     @type bool         $ignore_sticky_posts     Whether to ignore sticky posts or not. Setting this to false
	 *                                                 excludes stickies from 'post__in'. Accepts 1|true, 0|false.
	 *                                                 Default 0|false.
	 *     @type int          $m                       Combination YearMonth. Accepts any four-digit year and month
	 *                                                 numbers 1-12. Default empty.
	 *     @type string       $meta_compare            Comparison operator to test the 'meta_value'.
	 *     @type string       $meta_key                Custom field key.
	 *     @type array        $meta_query              An associative array of WP_Meta_Query arguments.
	 *                                                 {@see WP_Meta_Query->queries}
	 *     @type string       $meta_value              Custom field value.
	 *     @type int          $meta_value_num          Custom field value number.
	 *     @type int          $menu_order              The menu order of the posts.
	 *     @type int          $monthnum                The two-digit month. Default empty. Accepts numbers 1-12.
	 *     @type string       $name                    Post slug.
	 *     @type bool         $nopaging                Show all posts (true) or paginate (false). Default false.
	 *     @type bool         $no_found_rows           Whether to skip counting the total rows found. Enabling can improve
	 *                                                 performance. Default false.
	 *     @type int          $offset                  The number of posts to offset before retrieval.
	 *     @type string       $order                   Designates ascending or descending order of posts. Default 'DESC'.
	 *                                                 Accepts 'ASC', 'DESC'.
	 *     @type string       $orderby                 Sort retrieved posts by parameter. One or more options can be
	 *                                                 passed. To use 'meta_value', or 'meta_value_num',
	 *                                                 'meta_key=keyname' must be also be defined. Default 'date'.
	 *                                                 Accepts 'none', 'name', 'author', 'date', 'title', 'modified',
	 *                                                 'menu_order', 'parent', 'ID', 'rand', 'comment_count'.
	 *     @type int          $p                       Post ID.
	 *     @type int          $page                    Show the number of posts that would show up on page X of a
	 *                                                 static front page.
	 *     @type int          $paged                   The number of the current page.
	 *     @type int          $page_id                 Page ID.
	 *     @type string       $pagename                Page slug.
	 *     @type string       $perm                    Show posts if user has the appropriate capability.
	 *     @type array        $post__in                An array of post IDs to retrieve, sticky posts will be included
	 *     @type string       $post_mime_type          The mime type of the post. Used for 'attachment' post_type.
	 *     @type array        $post__not_in            An array of post IDs not to retrieve. Note: a string of comma-
	 *                                                 separated IDs will NOT work.
	 *     @type int          $post_parent             Page ID to retrieve child pages for. Use 0 to only retrieve
	 *                                                 top-level pages.
	 *     @type array        $post_parent__in         An array containing parent page IDs to query child pages from.
	 *     @type array        $post_parent__not_in     An array containing parent page IDs not to query child pages from.
	 *     @type string|array $post_type               A post type slug (string) or array of post type slugs.
	 *                                                 Default 'any' if using 'tax_query'.
	 *     @type string|array $post_status             A post status (string) or array of post statuses.
	 *     @type int          $posts_per_page          The number of posts to query for. Use -1 to request all posts.
	 *     @type int          $posts_per_archive_page  The number of posts to query for by archive page. Overrides
	 *                                                 'posts_per_page' when is_archive(), or is_search() are true.
	 *     @type string       $s                       Search keyword.
	 *     @type int          $second                  Second of the minute. Default empty. Accepts numbers 0-60.
	 *     @type array        $search_terms            Array of search terms.
	 *     @type bool         $sentence                Whether to search by phrase. Default false.
	 *     @type bool         $suppress_filters        Whether to suppress filters. Default false.
	 *     @type string       $tag                     Tag slug. Comma-separated (either), Plus-separated (all).
	 *     @type array        $tag__and                An array of tag ids (AND in).
	 *     @type array        $tag__in                 An array of tag ids (OR in).
	 *     @type array        $tag__not_in             An array of tag ids (NOT in).
	 *     @type int          $tag_id                  Tag id or comma-separated list of IDs.
	 *     @type array        $tag_slug__and           An array of tag slugs (AND in).
	 *     @type array        $tag_slug__in            An array of tag slugs (OR in). unless 'ignore_sticky_posts' is
	 *                                                 true. Note: a string of comma-separated IDs will NOT work.
	 *     @type array        $tax_query               An associative array of WP_Tax_Query arguments.
	 *                                                 {@see WP_Tax_Query->queries}
	 *     @type bool         $update_post_meta_cache  Whether to update the post meta cache. Default true.
	 *     @type bool         $update_post_term_cache  Whether to update the post term cache. Default true.
	 *     @type int          $w                       The week number of the year. Default empty. Accepts numbers 0-53.
	 *     @type int          $year                    The four-digit year. Default empty. Accepts any four-digit year.
	 * }
	 */
	public function parse_query( $query =  '' ) {
		if ( ! empty( $query ) ) {
			$this->init();
			$this->query = $this->query_vars = wp_parse_args( $query );
		} elseif ( ! isset( $this->query ) ) {
			$this->query = $this->query_vars;
		}

		$this->query_vars = $this->fill_query_vars($this->query_vars);
		$qv = &$this->query_vars;
		$this->query_vars_changed = true;

		if ( ! empty($qv['robots']) )
			$this->is_robots = true;

		$qv['p'] =  absint($qv['p']);
		$qv['page_id'] =  absint($qv['page_id']);
		$qv['year'] = absint($qv['year']);
		$qv['monthnum'] = absint($qv['monthnum']);
		$qv['day'] = absint($qv['day']);
		$qv['w'] = absint($qv['w']);
		$qv['m'] = preg_replace( '|[^0-9]|', '', $qv['m'] );
		$qv['paged'] = absint($qv['paged']);
		$qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers
		$qv['author'] = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers
		$qv['pagename'] = trim( $qv['pagename'] );
		$qv['name'] = trim( $qv['name'] );
		if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);
		if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);
		if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);
		if ( '' !== $qv['menu_order'] ) $qv['menu_order'] = absint($qv['menu_order']);

		// Fairly insane upper bound for search string lengths.
		if ( ! empty( $qv['s'] ) && strlen( $qv['s'] ) > 1600 )
			$qv['s'] = '';

		// Compat. Map subpost to attachment.
		if ( '' != $qv['subpost'] )
			$qv['attachment'] = $qv['subpost'];
		if ( '' != $qv['subpost_id'] )
			$qv['attachment_id'] = $qv['subpost_id'];

		$qv['attachment_id'] = absint($qv['attachment_id']);

		if ( ('' != $qv['attachment']) || !empty($qv['attachment_id']) ) {
			$this->is_single = true;
			$this->is_attachment = true;
		} elseif ( '' != $qv['name'] ) {
			$this->is_single = true;
		} elseif ( $qv['p'] ) {
			$this->is_single = true;
		} elseif ( ('' !== $qv['hour']) && ('' !== $qv['minute']) &&('' !== $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day']) ) {
			// If year, month, day, hour, minute, and second are set, a single
			// post is being queried.
			$this->is_single = true;
		} elseif ( '' != $qv['static'] || '' != $qv['pagename'] || !empty($qv['page_id']) ) {
			$this->is_page = true;
			$this->is_single = false;
		} else {
			// Look for archive queries. Dates, categories, authors, search, post type archives.

			if ( isset( $this->query['s'] ) ) {
				$this->is_search = true;
			}

			if ( '' !== $qv['second'] ) {
				$this->is_time = true;
				$this->is_date = true;
			}

			if ( '' !== $qv['minute'] ) {
				$this->is_time = true;
				$this->is_date = true;
			}

			if ( '' !== $qv['hour'] ) {
				$this->is_time = true;
				$this->is_date = true;
			}

			if ( $qv['day'] ) {
				if ( ! $this->is_date ) {
					$date = sprintf( '%04d-%02d-%02d', $qv['year'], $qv['monthnum'], $qv['day'] );
					if ( $qv['monthnum'] && $qv['year'] && ! wp_checkdate( $qv['monthnum'], $qv['day'], $qv['year'], $date ) ) {
						$qv['error'] = '404';
					} else {
						$this->is_day = true;
						$this->is_date = true;
					}
				}
			}

			if ( $qv['monthnum'] ) {
				if ( ! $this->is_date ) {
					if ( 12 < $qv['monthnum'] ) {
						$qv['error'] = '404';
					} else {
						$this->is_month = true;
						$this->is_date = true;
					}
				}
			}

			if ( $qv['year'] ) {
				if ( ! $this->is_date ) {
					$this->is_year = true;
					$this->is_date = true;
				}
			}

			if ( $qv['m'] ) {
				$this->is_date = true;
				if ( strlen($qv['m']) > 9 ) {
					$this->is_time = true;
				} else if ( strlen($qv['m']) > 7 ) {
					$this->is_day = true;
				} else if ( strlen($qv['m']) > 5 ) {
					$this->is_month = true;
				} else {
					$this->is_year = true;
				}
			}

			if ( '' != $qv['w'] ) {
				$this->is_date = true;
			}

			$this->query_vars_hash = false;
			$this->parse_tax_query( $qv );

			foreach ( $this->tax_query->queries as $tax_query ) {
				if ( 'NOT IN' != $tax_query['operator'] ) {
					switch ( $tax_query['taxonomy'] ) {
						case 'category':
							$this->is_category = true;
							break;
						case 'post_tag':
							$this->is_tag = true;
							break;
						default:
							$this->is_tax = true;
					}
				}
			}
			unset( $tax_query );

			if ( empty($qv['author']) || ($qv['author'] == '0') ) {
				$this->is_author = false;
			} else {
				$this->is_author = true;
			}

			if ( '' != $qv['author_name'] )
				$this->is_author = true;

			if ( !empty( $qv['post_type'] ) && ! is_array( $qv['post_type'] ) ) {
				$post_type_obj = get_post_type_object( $qv['post_type'] );
				if ( ! empty( $post_type_obj->has_archive ) )
					$this->is_post_type_archive = true;
			}

			if ( $this->is_post_type_archive || $this->is_date || $this->is_author || $this->is_category || $this->is_tag || $this->is_tax )
				$this->is_archive = true;
		}

		if ( '' != $qv['feed'] )
			$this->is_feed = true;

		if ( '' != $qv['tb'] )
			$this->is_trackback = true;

		if ( '' != $qv['paged'] && ( intval($qv['paged']) > 1 ) )
			$this->is_paged = true;

		if ( '' != $qv['comments_popup'] )
			$this->is_comments_popup = true;

		// if we're previewing inside the write screen
		if ( '' != $qv['preview'] )
			$this->is_preview = true;

		if ( is_admin() )
			$this->is_admin = true;

		if ( false !== strpos($qv['feed'], 'comments-') ) {
			$qv['feed'] = str_replace('comments-', '', $qv['feed']);
			$qv['withcomments'] = 1;
		}

		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;

		if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )
			$this->is_comment_feed = true;

		if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup || $this->is_robots ) )
			$this->is_home = true;

		// Correct is_* for page_on_front and page_for_posts
		if ( $this->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {
			$_query = wp_parse_args($this->query);
			// pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.
			if ( isset($_query['pagename']) && '' == $_query['pagename'] )
				unset($_query['pagename']);
			if ( empty($_query) || !array_diff( array_keys($_query), array('preview', 'page', 'paged', 'cpage') ) ) {
				$this->is_page = true;
				$this->is_home = false;
				$qv['page_id'] = get_option('page_on_front');
				// Correct <!--nextpage--> for page_on_front
				if ( !empty($qv['paged']) ) {
					$qv['page'] = $qv['paged'];
					unset($qv['paged']);
				}
			}
		}

		if ( '' != $qv['pagename'] ) {
			$this->queried_object = get_page_by_path($qv['pagename']);
			if ( !empty($this->queried_object) )
				$this->queried_object_id = (int) $this->queried_object->ID;
			else
				unset($this->queried_object);

			if  ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {
				$this->is_page = false;
				$this->is_home = true;
				$this->is_posts_page = true;
			}
		}

		if ( $qv['page_id'] ) {
			if  ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {
				$this->is_page = false;
				$this->is_home = true;
				$this->is_posts_page = true;
			}
		}

		if ( !empty($qv['post_type']) ) {
			if ( is_array($qv['post_type']) )
				$qv['post_type'] = array_map('sanitize_key', $qv['post_type']);
			else
				$qv['post_type'] = sanitize_key($qv['post_type']);
		}

		if ( ! empty( $qv['post_status'] ) ) {
			if ( is_array( $qv['post_status'] ) )
				$qv['post_status'] = array_map('sanitize_key', $qv['post_status']);
			else
				$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
		}

		if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )
			$this->is_comment_feed = false;

		$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;
		// Done correcting is_* for page_on_front and page_for_posts

		if ( '404' == $qv['error'] )
			$this->set_404();

		$this->query_vars_hash = md5( serialize( $this->query_vars ) );
		$this->query_vars_changed = false;

		/**
		 * Fires after the main query vars have been parsed.
		 *
		 * @since 1.5.0
		 *
		 * @param WP_Query &$this The WP_Query instance (passed by reference).
		 */
		do_action_ref_array( 'parse_query', array( &$this ) );
	}

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/**

* Parse a query string and set query type booleans.

* @since 1.5.0

* @access public

* @param string|array $query {

* Optional. Array or string of Query parameters.

* @type int $attachment_id Attachment post ID. Used for 'attachment' post_type.

* @type int|string $author Author ID, or comma-separated list of IDs.

* @type string $author_name User 'user_nicename'.

* @type array $author__in An array of author IDs to query from.

* @type array $author__not_in An array of author IDs not to query from.

* @type bool $cache_results Whether to cache post information. Default true.

* @type int|string $cat Category ID or comma-separated list of IDs (this or any children).

* @type array $category__and An array of category IDs (AND in).

* @type array $category__in An array of category IDs (OR in, no children).

* @type array $category__not_in An array of category IDs (NOT in).

* @type string $category_name Use category slug (not name, this or any children).

* @type int $comments_per_page The number of comments to return per page.

* Default 'comments_per_page' option.

* @type int|string $comments_popup Whether the query is within the comments popup. Default empty.

* @type array $date_query An associative array of WP_Date_Query arguments.

* {@see WP_Date_Query::__construct()}

* @type int $day Day of the month. Default empty. Accepts numbers 1-31.

* @type bool $exact Whether to search by exact keyword. Default false.

* @type string|array $fields Which fields to return. Single field or all fields (string),

* or array of fields. 'id=>parent' uses 'id' and 'post_parent'.

* Default all fields. Accepts 'ids', 'id=>parent'.

* @type int $hour Hour of the day. Default empty. Accepts numbers 0-23.

* @type bool $ignore_sticky_posts Whether to ignore sticky posts or not. Setting this to false

* excludes stickies from 'post__in'. Accepts 1|true, 0|false.

* Default 0|false.

* @type int $m Combination YearMonth. Accepts any four-digit year and month

* numbers 1-12. Default empty.

* @type string $meta_compare Comparison operator to test the 'meta_value'.

* @type string $meta_key Custom field key.

* @type array $meta_query An associative array of WP_Meta_Query arguments.

* {@see WP_Meta_Query->queries}

* @type string $meta_value Custom field value.

* @type int $meta_value_num Custom field value number.

* @type int $menu_order The menu order of the posts.

* @type int $monthnum The two-digit month. Default empty. Accepts numbers 1-12.

* @type string $name Post slug.

* @type bool $nopaging Show all posts (true) or paginate (false). Default false.

* @type bool $no_found_rows Whether to skip counting the total rows found. Enabling can improve

* performance. Default false.

* @type int $offset The number of posts to offset before retrieval.

* @type string $order Designates ascending or descending order of posts. Default 'DESC'.

* Accepts 'ASC', 'DESC'.

* @type string $orderby Sort retrieved posts by parameter. One or more options can be

* passed. To use 'meta_value', or 'meta_value_num',

* 'meta_key=keyname' must be also be defined. Default 'date'.

* Accepts 'none', 'name', 'author', 'date', 'title', 'modified',

* 'menu_order', 'parent', 'ID', 'rand', 'comment_count'.

* @type int $p Post ID.

* @type int $page Show the number of posts that would show up on page X of a

* static front page.

* @type int $paged The number of the current page.

* @type int $page_id Page ID.

* @type string $pagename Page slug.

* @type string $perm Show posts if user has the appropriate capability.

* @type array $post__in An array of post IDs to retrieve, sticky posts will be included

* @type string $post_mime_type The mime type of the post. Used for 'attachment' post_type.

* @type array $post__not_in An array of post IDs not to retrieve. Note: a string of comma-

* separated IDs will NOT work.

* @type int $post_parent Page ID to retrieve child pages for. Use 0 to only retrieve

* top-level pages.

* @type array $post_parent__in An array containing parent page IDs to query child pages from.

* @type array $post_parent__not_in An array containing parent page IDs not to query child pages from.

* @type string|array $post_type A post type slug (string) or array of post type slugs.

* Default 'any' if using 'tax_query'.

* @type string|array $post_status A post status (string) or array of post statuses.

* @type int $posts_per_page The number of posts to query for. Use -1 to request all posts.

* @type int $posts_per_archive_page The number of posts to query for by archive page. Overrides

* 'posts_per_page' when is_archive(), or is_search() are true.

* @type string $s Search keyword.

* @type int $second Second of the minute. Default empty. Accepts numbers 0-60.

* @type array $search_terms Array of search terms.

* @type bool $sentence Whether to search by phrase. Default false.

* @type bool $suppress_filters Whether to suppress filters. Default false.

* @type string $tag Tag slug. Comma-separated (either), Plus-separated (all).

* @type array $tag__and An array of tag ids (AND in).

* @type array $tag__in An array of tag ids (OR in).

* @type array $tag__not_in An array of tag ids (NOT in).

* @type int $tag_id Tag id or comma-separated list of IDs.

* @type array $tag_slug__and An array of tag slugs (AND in).

* @type array $tag_slug__in An array of tag slugs (OR in). unless 'ignore_sticky_posts' is

* true. Note: a string of comma-separated IDs will NOT work.

* @type array $tax_query An associative array of WP_Tax_Query arguments.

* {@see WP_Tax_Query->queries}

* @type bool $update_post_meta_cache Whether to update the post meta cache. Default true.

* @type bool $update_post_term_cache Whether to update the post term cache. Default true.

* @type int $w The week number of the year. Default empty. Accepts numbers 0-53.

* @type int $year The four-digit year. Default empty. Accepts any four-digit year.

* }

public function parse_query( $query = '' ) {

if ( ! empty( $query ) ) {

$this->init();

$this->query = $this->query_vars = wp_parse_args( $query );

} elseif ( ! isset( $this->query ) ) {

$this->query = $this->query_vars;

}

$this->query_vars = $this->fill_query_vars($this->query_vars);

$qv = &$this->query_vars;

$this->query_vars_changed = true;

if ( ! empty($qv['robots']) )

$this->is_robots = true;

$qv['p'] = absint($qv['p']);

$qv['page_id'] = absint($qv['page_id']);

$qv['year'] = absint($qv['year']);

$qv['monthnum'] = absint($qv['monthnum']);

$qv['day'] = absint($qv['day']);

$qv['w'] = absint($qv['w']);

$qv['m'] = preg_replace( '|[^0-9]|', '', $qv['m'] );

$qv['paged'] = absint($qv['paged']);

$qv['cat'] = preg_replace( '|[^0-9,-]|', '', $qv['cat'] ); // comma separated list of positive or negative integers

$qv['author'] = preg_replace( '|[^0-9,-]|', '', $qv['author'] ); // comma separated list of positive or negative integers

$qv['pagename'] = trim( $qv['pagename'] );

$qv['name'] = trim( $qv['name'] );

if ( '' !== $qv['hour'] ) $qv['hour'] = absint($qv['hour']);

if ( '' !== $qv['minute'] ) $qv['minute'] = absint($qv['minute']);

if ( '' !== $qv['second'] ) $qv['second'] = absint($qv['second']);

if ( '' !== $qv['menu_order'] ) $qv['menu_order'] = absint($qv['menu_order']);

// Fairly insane upper bound for search string lengths.

if ( ! empty( $qv['s'] ) && strlen( $qv['s'] ) > 1600 )

$qv['s'] = '';

// Compat. Map subpost to attachment.

if ( '' != $qv['subpost'] )

$qv['attachment'] = $qv['subpost'];

if ( '' != $qv['subpost_id'] )

$qv['attachment_id'] = $qv['subpost_id'];

$qv['attachment_id'] = absint($qv['attachment_id']);

if ( ('' != $qv['attachment']) || !empty($qv['attachment_id']) ) {

$this->is_single = true;

$this->is_attachment = true;

} elseif ( '' != $qv['name'] ) {

$this->is_single = true;

} elseif ( $qv['p'] ) {

$this->is_single = true;

} elseif ( ('' !== $qv['hour']) && ('' !== $qv['minute']) &&('' !== $qv['second']) && ('' != $qv['year']) && ('' != $qv['monthnum']) && ('' != $qv['day']) ) {

// If year, month, day, hour, minute, and second are set, a single

// post is being queried.

$this->is_single = true;

} elseif ( '' != $qv['static'] || '' != $qv['pagename'] || !empty($qv['page_id']) ) {

$this->is_page = true;

$this->is_single = false;

} else {

// Look for archive queries. Dates, categories, authors, search, post type archives.

if ( isset( $this->query['s'] ) ) {

$this->is_search = true;

}

if ( '' !== $qv['second'] ) {

$this->is_time = true;

$this->is_date = true;

}

if ( '' !== $qv['minute'] ) {

$this->is_time = true;

$this->is_date = true;

}

if ( '' !== $qv['hour'] ) {

$this->is_time = true;

$this->is_date = true;

}

if ( $qv['day'] ) {

if ( ! $this->is_date ) {

$date = sprintf( '%04d-%02d-%02d', $qv['year'], $qv['monthnum'], $qv['day'] );

if ( $qv['monthnum'] && $qv['year'] && ! wp_checkdate( $qv['monthnum'], $qv['day'], $qv['year'], $date ) ) {

$qv['error'] = '404';

} else {

$this->is_day = true;

$this->is_date = true;

}

if ( $qv['monthnum'] ) {

if ( ! $this->is_date ) {

if ( 12 < $qv['monthnum'] ) {

$qv['error'] = '404';

} else {

$this->is_month = true;

$this->is_date = true;

}

if ( $qv['year'] ) {

if ( ! $this->is_date ) {

$this->is_year = true;

$this->is_date = true;

}

if ( $qv['m'] ) {

$this->is_date = true;

if ( strlen($qv['m']) > 9 ) {

$this->is_time = true;

} else if ( strlen($qv['m']) > 7 ) {

$this->is_day = true;

} else if ( strlen($qv['m']) > 5 ) {

$this->is_month = true;

} else {

$this->is_year = true;

}

if ( '' != $qv['w'] ) {

$this->is_date = true;

}

$this->query_vars_hash = false;

$this->parse_tax_query( $qv );

foreach ( $this->tax_query->queries as $tax_query ) {

if ( 'NOT IN' != $tax_query['operator'] ) {

switch ( $tax_query['taxonomy'] ) {

case 'category':

$this->is_category = true;

break;

case 'post_tag':

$this->is_tag = true;

break;

default:

$this->is_tax = true;

}

unset( $tax_query );

if ( empty($qv['author']) || ($qv['author'] == '0') ) {

$this->is_author = false;

} else {

$this->is_author = true;

}

if ( '' != $qv['author_name'] )

$this->is_author = true;

if ( !empty( $qv['post_type'] ) && ! is_array( $qv['post_type'] ) ) {

$post_type_obj = get_post_type_object( $qv['post_type'] );

if ( ! empty( $post_type_obj->has_archive ) )

$this->is_post_type_archive = true;

}

if ( $this->is_post_type_archive || $this->is_date || $this->is_author || $this->is_category || $this->is_tag || $this->is_tax )

$this->is_archive = true;

}

if ( '' != $qv['feed'] )

$this->is_feed = true;

if ( '' != $qv['tb'] )

$this->is_trackback = true;

if ( '' != $qv['paged'] && ( intval($qv['paged']) > 1 ) )

$this->is_paged = true;

if ( '' != $qv['comments_popup'] )

$this->is_comments_popup = true;

// if we're previewing inside the write screen

if ( '' != $qv['preview'] )

$this->is_preview = true;

if ( is_admin() )

$this->is_admin = true;

if ( false !== strpos($qv['feed'], 'comments-') ) {

$qv['feed'] = str_replace('comments-', '', $qv['feed']);

$qv['withcomments'] = 1;

}

$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;

if ( $this->is_feed && ( !empty($qv['withcomments']) || ( empty($qv['withoutcomments']) && $this->is_singular ) ) )

$this->is_comment_feed = true;

if ( !( $this->is_singular || $this->is_archive || $this->is_search || $this->is_feed || $this->is_trackback || $this->is_404 || $this->is_admin || $this->is_comments_popup || $this->is_robots ) )

$this->is_home = true;

// Correct is_* for page_on_front and page_for_posts

if ( $this->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front') ) {

$_query = wp_parse_args($this->query);

// pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.

if ( isset($_query['pagename']) && '' == $_query['pagename'] )

unset($_query['pagename']);

if ( empty($_query) || !array_diff( array_keys($_query), array('preview', 'page', 'paged', 'cpage') ) ) {

$this->is_page = true;

$this->is_home = false;

$qv['page_id'] = get_option('page_on_front');

// Correct  for page_on_front

if ( !empty($qv['paged']) ) {

$qv['page'] = $qv['paged'];

unset($qv['paged']);

}

if ( '' != $qv['pagename'] ) {

$this->queried_object = get_page_by_path($qv['pagename']);

if ( !empty($this->queried_object) )

$this->queried_object_id = (int) $this->queried_object->ID;

else

unset($this->queried_object);

if ( 'page' == get_option('show_on_front') && isset($this->queried_object_id) && $this->queried_object_id == get_option('page_for_posts') ) {

$this->is_page = false;

$this->is_home = true;

$this->is_posts_page = true;

}

if ( $qv['page_id'] ) {

if ( 'page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts') ) {

$this->is_page = false;

$this->is_home = true;

$this->is_posts_page = true;

}

if ( !empty($qv['post_type']) ) {

if ( is_array($qv['post_type']) )

$qv['post_type'] = array_map('sanitize_key', $qv['post_type']);

else

$qv['post_type'] = sanitize_key($qv['post_type']);

}

if ( ! empty( $qv['post_status'] ) ) {

if ( is_array( $qv['post_status'] ) )

$qv['post_status'] = array_map('sanitize_key', $qv['post_status']);

else

$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);

}

if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )

$this->is_comment_feed = false;

$this->is_singular = $this->is_single || $this->is_page || $this->is_attachment;

// Done correcting is_* for page_on_front and page_for_posts

if ( '404' == $qv['error'] )

$this->set_404();

$this->query_vars_hash = md5( serialize( $this->query_vars ) );

$this->query_vars_changed = false;

/**

* Fires after the main query vars have been parsed.

* @since 1.5.0

* @param WP_Query &$this The WP_Query instance (passed by reference).

do_action_ref_array( 'parse_query', array( &$this ) );

}

- Wordpress

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WordPressを読む 27-3 /blog/wp-includes/query.php 3

/blog/wp-includes/query.php 3

WordPressを読む　27-3 /blog/wp-includes/query.php 3