Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Jetpack_Options often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Jetpack_Options, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 3 | class Jetpack_Options { |
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| 4 | |||
| 5 | private static $grouped_options = array( |
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| 6 | 'compact' => 'jetpack_options', |
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| 7 | 'private' => 'jetpack_private_options' |
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| 8 | ); |
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| 9 | |||
| 10 | public static function get_option_names( $type = 'compact' ) { |
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| 11 | switch ( $type ) { |
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| 12 | case 'non-compact' : |
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| 13 | case 'non_compact' : |
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| 14 | return array( |
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| 15 | 'activated', |
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| 16 | 'active_modules', |
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| 17 | 'available_modules', |
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| 18 | 'do_activate', |
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| 19 | 'log', |
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| 20 | 'publicize', |
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| 21 | 'slideshow_background_color', |
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| 22 | 'widget_twitter', |
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| 23 | 'wpcc_options', |
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| 24 | 'relatedposts', |
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| 25 | 'file_data', |
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| 26 | 'security_report', |
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| 27 | 'autoupdate_plugins', // (array) An array of plugin ids ( eg. jetpack/jetpack ) that should be autoupdated |
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| 28 | 'autoupdate_themes', // (array) An array of theme ids ( eg. twentyfourteen ) that should be autoupdated |
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| 29 | 'autoupdate_core', // (bool) Whether or not to autoupdate core |
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| 30 | 'json_api_full_management', // (bool) Allow full management (eg. Activate, Upgrade plugins) of the site via the JSON API. |
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| 31 | 'sync_non_public_post_stati', // (bool) Allow synchronisation of posts and pages with non-public status. |
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| 32 | 'site_icon_url', // (string) url to the full site icon |
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| 33 | 'site_icon_id', // (int) Attachment id of the site icon file |
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| 34 | 'dismissed_manage_banner', // (bool) Dismiss Jetpack manage banner allows the user to dismiss the banner permanently |
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| 35 | 'restapi_stats_cache', // (array) Stats Cache data. |
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| 36 | 'unique_connection', // (array) A flag to determine a unique connection to wordpress.com two values "connected" and "disconnected" with values for how many times each has occured |
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| 37 | 'protect_whitelist' // (array) IP Address for the Protect module to ignore |
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| 38 | ); |
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| 39 | |||
| 40 | case 'private' : |
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| 41 | return array( |
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| 42 | 'register', |
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| 43 | 'blog_token', // (string) The Client Secret/Blog Token of this site. |
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| 44 | 'user_token', // (string) The User Token of this site. (deprecated) |
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| 45 | 'user_tokens' // (array) User Tokens for each user of this site who has connected to jetpack.wordpress.com. |
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| 46 | ); |
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| 47 | } |
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| 48 | |||
| 49 | return array( |
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| 50 | 'id', // (int) The Client ID/WP.com Blog ID of this site. |
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| 51 | 'publicize_connections', // (array) An array of Publicize connections from WordPress.com |
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| 52 | 'master_user', // (int) The local User ID of the user who connected this site to jetpack.wordpress.com. |
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| 53 | 'version', // (string) Used during upgrade procedure to auto-activate new modules. version:time |
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| 54 | 'old_version', // (string) Used to determine which modules are the most recently added. previous_version:time |
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| 55 | 'fallback_no_verify_ssl_certs', // (int) Flag for determining if this host must skip SSL Certificate verification due to misconfigured SSL. |
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| 56 | 'time_diff', // (int) Offset between Jetpack server's clocks and this server's clocks. Jetpack Server Time = time() + (int) Jetpack_Options::get_option( 'time_diff' ) |
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| 57 | 'public', // (int|bool) If we think this site is public or not (1, 0), false if we haven't yet tried to figure it out. |
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| 58 | 'videopress', // (array) VideoPress options array. |
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| 59 | 'is_network_site', // (int|bool) If we think this site is a network or a single blog (1, 0), false if we haven't yet tried to figue it out. |
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| 60 | 'social_links', // (array) The specified links for each social networking site. |
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| 61 | 'identity_crisis_whitelist', // (array) An array of options, each having an array of the values whitelisted for it. |
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| 62 | 'gplus_authors', // (array) The Google+ authorship information for connected users. |
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| 63 | 'last_heartbeat', // (int) The timestamp of the last heartbeat that fired. |
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| 64 | 'last_security_report', // (int) The timestamp of the last security report that was run. |
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| 65 | 'sync_bulk_reindexing', // (bool) If a bulk reindex is currently underway. |
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| 66 | 'jumpstart', // (string) A flag for whether or not to show the Jump Start. Accepts: new_connection, jumpstart_activated, jetpack_action_taken, jumpstart_dismissed. |
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| 67 | 'hide_jitm' // (array) A list of just in time messages that we should not show because they have been dismissed by the user |
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| 68 | ); |
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| 69 | } |
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| 70 | |||
| 71 | public static function is_valid( $name, $group = null ) { |
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| 72 | if ( is_array( $name ) ) { |
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| 73 | $compact_names = array(); |
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| 74 | foreach ( array_keys( self::$grouped_options ) as $_group ) { |
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| 75 | $compact_names = array_merge( $compact_names, self::get_option_names( $_group ) ); |
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| 76 | } |
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| 77 | |||
| 78 | $result = array_diff( $name, self::get_option_names( 'non_compact' ), $compact_names ); |
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| 79 | |||
| 80 | return empty( $result ); |
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| 81 | } |
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| 82 | |||
| 83 | View Code Duplication | if ( is_null( $group ) || 'non_compact' === $group ) { |
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| 84 | if ( in_array( $name, self::get_option_names( $group ) ) ) { |
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| 85 | return true; |
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| 86 | } |
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| 87 | } |
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| 88 | |||
| 89 | foreach ( array_keys( self::$grouped_options ) as $_group ) { |
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| 90 | View Code Duplication | if ( is_null( $group ) || $group === $_group ) { |
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| 91 | if ( in_array( $name, self::get_option_names( $_group ) ) ) { |
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| 92 | return true; |
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| 93 | } |
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| 94 | } |
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| 95 | } |
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| 96 | |||
| 97 | return false; |
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| 98 | } |
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| 99 | |||
| 100 | /** |
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| 101 | * Returns the requested option. Looks in jetpack_options or jetpack_$name as appropriate. |
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| 102 | * |
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| 103 | * @param string $name Option name |
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| 104 | * @param mixed $default (optional) |
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| 105 | */ |
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| 106 | public static function get_option( $name, $default = false ) { |
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| 121 | |||
| 122 | private static function update_grouped_option( $group, $name, $value ) { |
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| 123 | $options = get_option( self::$grouped_options[ $group ] ); |
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| 131 | |||
| 132 | /** |
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| 133 | * Updates the single given option. Updates jetpack_options or jetpack_$name as appropriate. |
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| 134 | * |
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| 135 | * @param string $name Option name |
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| 136 | * @param mixed $value Option value |
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| 137 | * @param string $autoload If not compact option, allows specifying whether to autoload or not. |
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| 138 | */ |
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| 139 | public static function update_option( $name, $value, $autoload = null ) { |
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| 170 | |||
| 171 | /** |
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| 172 | * Updates the multiple given options. Updates jetpack_options and/or jetpack_$name as appropriate. |
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| 173 | * |
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| 174 | * @param array $array array( option name => option value, ... ) |
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| 175 | */ |
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| 176 | public static function update_options( $array ) { |
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| 188 | |||
| 189 | /** |
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| 190 | * Deletes the given option. May be passed multiple option names as an array. |
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| 191 | * Updates jetpack_options and/or deletes jetpack_$name as appropriate. |
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| 192 | * |
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| 193 | * @param string|array $names |
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| 194 | */ |
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| 195 | public static function delete_option( $names ) { |
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| 219 | |||
| 220 | private static function get_grouped_option( $group, $name, $default ) { |
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| 228 | |||
| 229 | private static function delete_grouped_option( $group, $names ) { |
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| 243 | |||
| 244 | } |
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| 245 |
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.