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_Instant_Search 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_Instant_Search, and based on these observations, apply Extract Interface, too.
1 | <?php |
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17 | class Jetpack_Instant_Search extends Jetpack_Search { |
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18 | |||
19 | /** |
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20 | * Loads the php for this version of search |
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21 | * |
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22 | * @since 8.3.0 |
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23 | */ |
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24 | public function load_php() { |
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33 | |||
34 | /** |
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35 | * Setup the various hooks needed for the plugin to take over search duties. |
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36 | * |
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37 | * @since 5.0.0 |
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38 | */ |
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39 | View Code Duplication | public function init_hooks() { |
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55 | |||
56 | /** |
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57 | * Loads assets for Jetpack Instant Search Prototype featuring Search As You Type experience. |
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58 | */ |
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59 | public function load_assets() { |
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76 | |||
77 | /** |
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78 | * Passes all options to the JS app. |
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79 | */ |
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80 | protected function inject_javascript_options() { |
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81 | $widget_options = Jetpack_Search_Helpers::get_widgets_from_option(); |
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82 | if ( is_array( $widget_options ) ) { |
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83 | $widget_options = end( $widget_options ); |
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84 | } |
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85 | |||
86 | $overlay_widget_ids = array_key_exists( 'jetpack-instant-search-sidebar', get_option( 'sidebars_widgets', array() ) ) ? |
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87 | get_option( 'sidebars_widgets', array() )['jetpack-instant-search-sidebar'] : array(); |
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88 | $filters = Jetpack_Search_Helpers::get_filters_from_widgets(); |
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89 | $widgets = array(); |
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90 | $widgets_outside_overlay = array(); |
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91 | foreach ( $filters as $key => &$filter ) { |
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92 | $filter['filter_id'] = $key; |
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93 | |||
94 | if ( in_array( $filter['widget_id'], $overlay_widget_ids, true ) ) { |
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95 | View Code Duplication | if ( ! isset( $widgets[ $filter['widget_id'] ] ) ) { |
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96 | $widgets[ $filter['widget_id'] ]['filters'] = array(); |
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97 | $widgets[ $filter['widget_id'] ]['widget_id'] = $filter['widget_id']; |
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98 | } |
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99 | $widgets[ $filter['widget_id'] ]['filters'][] = $filter; |
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100 | } else { |
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101 | View Code Duplication | if ( ! isset( $widgets_outside_overlay[ $filter['widget_id'] ] ) ) { |
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102 | $widgets_outside_overlay[ $filter['widget_id'] ]['filters'] = array(); |
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103 | $widgets_outside_overlay[ $filter['widget_id'] ]['widget_id'] = $filter['widget_id']; |
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104 | } |
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105 | $widgets_outside_overlay[ $filter['widget_id'] ]['filters'][] = $filter; |
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106 | } |
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107 | } |
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108 | unset( $filter ); |
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109 | |||
110 | $post_type_objs = get_post_types( array(), 'objects' ); |
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111 | $post_type_labels = array(); |
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112 | foreach ( $post_type_objs as $key => $obj ) { |
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113 | $post_type_labels[ $key ] = array( |
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114 | 'singular_name' => $obj->labels->singular_name, |
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115 | 'name' => $obj->labels->name, |
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116 | ); |
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117 | } |
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118 | |||
119 | $prefix = Jetpack_Search_Options::OPTION_PREFIX; |
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120 | $options = array( |
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121 | 'overlayOptions' => array( |
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122 | 'colorTheme' => get_option( $prefix . 'color_theme', 'light' ), |
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123 | 'enableInfScroll' => (bool) get_option( $prefix . 'inf_scroll', false ), |
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124 | 'highlightColor' => get_option( $prefix . 'highlight_color', '#FFC' ), |
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125 | 'opacity' => (int) get_option( $prefix . 'opacity', 97 ), |
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126 | 'showPoweredBy' => (bool) get_option( $prefix . 'show_powered_by', true ), |
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127 | ), |
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128 | |||
129 | // core config. |
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130 | 'homeUrl' => home_url(), |
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131 | 'locale' => str_replace( '_', '-', Jetpack_Search_Helpers::is_valid_locale( get_locale() ) ? get_locale() : 'en_US' ), |
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132 | 'postsPerPage' => get_option( 'posts_per_page' ), |
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133 | 'siteId' => Jetpack::get_option( 'id' ), |
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134 | |||
135 | // filtering. |
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136 | 'postTypeFilters' => isset( $widget_options['post_types'] ) ? $widget_options['post_types'] : array(), |
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137 | 'postTypes' => $post_type_labels, |
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138 | 'sort' => isset( $widget_options['sort'] ) ? $widget_options['sort'] : null, |
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139 | 'widgets' => array_values( $widgets ), |
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140 | 'widgetsOutsideOverlay' => array_values( $widgets_outside_overlay ), |
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141 | ); |
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142 | |||
143 | /** |
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144 | * Customize Instant Search Options. |
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145 | * |
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146 | * @module search |
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147 | * |
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148 | * @since 7.7.0 |
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149 | * |
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150 | * @param array $options Array of parameters used in Instant Search queries. |
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151 | */ |
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152 | $options = apply_filters( 'jetpack_instant_search_options', $options ); |
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153 | |||
154 | // Use wp_add_inline_script instead of wp_localize_script, see https://core.trac.wordpress.org/ticket/25280. |
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155 | wp_add_inline_script( 'jetpack-instant-search', 'var JetpackInstantSearchOptions=JSON.parse(decodeURIComponent("' . rawurlencode( wp_json_encode( $options ) ) . '"));' ); |
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156 | } |
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157 | |||
158 | /** |
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159 | * Registers a widget sidebar for Instant Search. |
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160 | */ |
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161 | public function register_jetpack_instant_sidebar() { |
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174 | |||
175 | /** |
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176 | * Prints Instant Search sidebar. |
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177 | */ |
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178 | public function print_instant_search_sidebar() { |
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187 | |||
188 | /** |
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189 | * Loads scripts for Tracks analytics library |
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190 | */ |
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191 | public function load_and_initialize_tracks() { |
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194 | |||
195 | /** |
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196 | * Get the version number to use when loading the file. Allows us to bypass cache when developing. |
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197 | * |
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198 | * @param string $file Path of the file we are looking for. |
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199 | * @return string $script_version Version number. |
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200 | */ |
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201 | public static function get_asset_version( $file ) { |
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206 | |||
207 | /** |
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208 | * Bypass the normal Search query since we will run it with instant search. |
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209 | * |
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210 | * @since 8.3.0 |
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211 | * |
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212 | * @param array $posts Current array of posts (still pre-query). |
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213 | * @param WP_Query $query The WP_Query being filtered. |
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214 | * |
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215 | * @return array Array of matching posts. |
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216 | */ |
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217 | public function filter__posts_pre_query( $posts, $query ) { |
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233 | |||
234 | /** |
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235 | * Run the aggregations API query for any filtering |
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236 | * |
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237 | * @since 8.3.0 |
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238 | * |
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239 | * @param WP_Query $query The WP_Query being filtered. |
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240 | */ |
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241 | public function action__parse_query( $query ) { |
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266 | |||
267 | /** |
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268 | * Run an instant search on the WordPress.com public API. |
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269 | * |
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270 | * @since 8.3.0 |
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271 | * |
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272 | * @param array $args Args conforming to the WP.com v1.3/sites/<blog_id>/search endpoint. |
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273 | * |
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274 | * @return object|WP_Error The response from the public API, or a WP_Error. |
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275 | */ |
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276 | public function instant_api( array $args ) { |
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370 | |||
371 | /** |
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372 | * Get the raw Aggregation results from the Elasticsearch response. |
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373 | * |
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374 | * @since 8.3.0 |
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375 | * |
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376 | * @return array Array of Aggregations performed on the search. |
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377 | */ |
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378 | public function get_search_aggregations_results() { |
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385 | |||
386 | |||
387 | } |
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388 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..