A HitchHackers guide through WordPress

maybe_add_column

February 24, 2011 by Thorsten 0 Comments

Definition:
function maybe_add_column($table_name, $column_name, $create_ddl) {}

* maybe_add_column() * Add column to db table if it doesn’t exist.

* Returns: true if already exists or on successful completion * false on error

Parameters

$table_name
$column_name
$create_ddl

Source code

function maybe_add_column($table_name, $column_name, $create_ddl) {

	global $wpdb, $debug;

	foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {

		if ($debug) echo("checking $column == $column_name<br />");

		if ($column == $column_name) {

			return true;

		}

	}

	//didn't find it try to create it.

	$q = $wpdb->query($create_ddl);

	// we cannot directly tell that whether this succeeded!

	foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {

		if ($column == $column_name) {

			return true;

		}

	}

	return false;

}

9993

/wp-admin/includes/upgrade.php, Documentation, Files, Functions, Functions by letter m

id00408937da5b327a656ef632f0bd10e8, maybe_add_column

login_footer

February 24, 2011 by Thorsten 0 Comments

Definition:
function login_footer($input_id = '') {}

Outputs the footer for the login page.

Parameters

string $input_id: Which input to auto-focus

Defined actions

login_footer
do_action('login_footer');

Source code

function login_footer($input_id = '') {

	?>

	<p id="backtoblog"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" title="<?php esc_attr_e( 'Are you lost?' ); ?>"><?php printf( __( '&larr; Back to %s' ), get_bloginfo( 'title', 'display' ) ); ?></a></p>

	</div>



<?php if ( !empty($input_id) ) : ?>

<script type="text/javascript">

try{document.getElementById('<?php echo $input_id; ?>').focus();}catch(e){}

if(typeof wpOnload=='function')wpOnload();

</script>

<?php endif; ?>



<?php do_action('login_footer'); ?>

<div class="clear"></div>

</body>

</html>

<?php

}

9979

/wp-login.php, Actions, Actions by letter l, Documentation, Files, Functions, Functions by letter l

ide3070daaf6a49f69c95c7727fc3fb859, login_footer

is_wp_error

February 24, 2011 by Thorsten 0 Comments

Definition:
function is_wp_error($thing) {}

Check whether variable is a WordPress Error.

Looks at the object and if a WP_Error class. Does not check to see if the parent is also WP_Error, so can’t inherit WP_Error and still use this function.

Parameters

mixed $thing: Check if unknown variable is WordPress Error object.

Return values

returns:True, if WP_Error. False, if not WP_Error.

Source code

function is_wp_error($thing) {

	if ( is_object($thing) && is_a($thing, 'WP_Error') )

		return true;

	return false;

}

9944

/wp-includes/class-wp-error.php, Documentation, Files, Functions, Functions by letter i

ide3e9e65c417f15e35b383f782d26a521, is_wp_error

is_user_admin

February 24, 2011 by Thorsten 0 Comments

Definition:
function is_user_admin() {}

Whether the current request is for a user admin screen /wp-admin/user/

Does not inform on whether the user is an admin! Use capability checks to tell if the user should be accessing a section or not.

Return values

returns:True if inside WordPress user administration pages.

Source code

function is_user_admin() {

	if ( defined( 'WP_USER_ADMIN' ) )

		return WP_USER_ADMIN;

	return false;

}

9937

/wp-includes/load.php, Documentation, Files, Functions, Functions by letter i

id8749d95f4d21c29b541eb89e015d5b7c, is_user_admin

is_post_type_archive

February 24, 2011 by Thorsten 0 Comments

Definition:
function is_post_type_archive( $post_types = '' ) {}

Is the query for a post type archive page?

Parameters

mixed $post_types: Optional. Post type or array of posts types to check against.

Source code

	function is_post_type_archive( $post_types = '' ) {

		if ( empty( $post_types ) || !$this->is_post_type_archive )

			return (bool) $this->is_post_type_archive;



		$post_type_object = $this->get_queried_object();



		return in_array( $post_type_object->name, (array) $post_types );

	}

9908

/wp-includes/query.php, Documentation, Files, Functions, Functions by letter i

codex, id0c89da270d41a47c960367b8b502095b, is_post_type_archive

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