WP_Tax_Query::get_sql_clauses() – Method

WP_Tax_Query::get_sql_clauses(): string[]

Generates SQL clauses to be appended to a main query.

Description

Called by the public WP_Tax_Query::get_sql(), this method is abstracted out to maintain parity with the other Query classes.

Return

string[] Array containing JOIN and WHERE SQL clauses to append to the main query.

join string
SQL fragment to append to the main JOIN clause.
where string
SQL fragment to append to the main WHERE clause.

Source

protected function get_sql_clauses() {
	/*
	 * $queries are passed by reference to get_sql_for_query() for recursion.
	 * To keep $this->queries unaltered, pass a copy.
	 */
	$queries = $this->queries;
	$sql     = $this->get_sql_for_query( $queries );

	if ( ! empty( $sql['where'] ) ) {
		$sql['where'] = ' AND ' . $sql['where'];
	}

	return $sql;
}

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Uses	Description
WP_Tax_Query::get_sql_for_query()`wp-includes/class-wp-tax-query.php`	Generates SQL clauses for a single query array.

Used by	Description
WP_Tax_Query::get_sql()`wp-includes/class-wp-tax-query.php`	Generates SQL clauses to be appended to a main query.

Changelog

Version	Description
4.1.0	Introduced.

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