gistfile1.txt

add_action( 'pre_get_posts', 'et_custom_posts_per_page' );

function et_custom_posts_per_page( $query = false ) {
	global $shortname;

	if ( is_admin() ) {
		return;
	}

	if ( ! is_a( $query, 'WP_Query' ) || ! $query->is_main_query() ) {
		return;
	}

	if ( $query->is_category ) {
		$query->set( 'posts_per_page', (int) et_get_option( $shortname . '_catnum_posts', '5' ) );
	} elseif ( $query->is_tag ) {
		$query->set( 'posts_per_page', (int) et_get_option( $shortname . '_tagnum_posts', '5' ) );
	} elseif ( $query->is_search ) {
		if ( isset( $_GET['et_searchform_submit'] ) ) {
			$postTypes = array();
			if ( !isset( $_GET['et-inc-posts'] ) && !isset( $_GET['et-inc-pages'] ) ) $postTypes = array('post');
			if ( isset( $_GET['et-inc-pages'] ) ) $postTypes = array('page');
			if ( isset( $_GET['et-inc-posts'] ) ) $postTypes[] = 'post';
			$query->set( 'post_type', $postTypes );

			if ( isset( $_GET['et-month-choice'] ) && $_GET['et-month-choice'] != 'no-choice' ) {
				$et_year = substr( $_GET['et-month-choice'], 0, 4 );
				$et_month = substr( $_GET['et-month-choice'], 4, strlen( $_GET['et-month-choice'] ) - 4 );

				$query->set( 'year', absint( $et_year ) );
				$query->set( 'monthnum', absint( $et_month ) );
			}

			if ( isset( $_GET['et-cat'] ) && $_GET['et-cat'] != 0 )
				$query->set( 'cat', absint( $_GET['et-cat'] ) );
		}
		$query->set( 'posts_per_page', (int) et_get_option( $shortname . '_searchnum_posts', '5' ) );
	} elseif ( $query->is_archive ) {
		$posts_number = (int) et_get_option( $shortname . '_archivenum_posts', '5' );

		if ( function_exists( 'is_woocommerce' ) && is_woocommerce() ) {
			$posts_number = (int) et_get_option( $shortname . '_woocommerce_archive_num_posts', '9' );
		}

		$query->set( 'posts_per_page', $posts_number );
	}
}