Complex classes like CMB2_hookup 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 CMB2_hookup, and based on these observations, apply Extract Interface, too.
1 | <?php |
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14 | class CMB2_hookup extends CMB2_Hookup_Base { |
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15 | |||
16 | /** |
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17 | * Array of all hooks done (to be run once) |
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18 | * @var array |
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19 | * @since 2.0.0 |
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20 | */ |
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21 | protected static $hooks_completed = array(); |
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22 | |||
23 | /** |
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24 | * Only allow JS registration once |
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25 | * @var bool |
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26 | * @since 2.0.7 |
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27 | */ |
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28 | protected static $js_registration_done = false; |
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29 | |||
30 | /** |
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31 | * Only allow CSS registration once |
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32 | * @var bool |
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33 | * @since 2.0.7 |
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34 | */ |
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35 | protected static $css_registration_done = false; |
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36 | |||
37 | /** |
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38 | * CMB taxonomies array for term meta |
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39 | * @var array |
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40 | * @since 2.2.0 |
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41 | */ |
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42 | protected $taxonomies = array(); |
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43 | |||
44 | /** |
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45 | * Constructor |
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46 | * @since 2.0.0 |
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47 | * @param CMB2 $cmb The CMB2 object to hookup |
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48 | */ |
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49 | public function __construct( CMB2 $cmb ) { |
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50 | $this->cmb = $cmb; |
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51 | $this->object_type = $this->cmb->mb_object_type(); |
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52 | } |
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53 | |||
54 | public function universal_hooks() { |
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55 | // Handle oembed Ajax |
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56 | $this->once( 'wp_ajax_cmb2_oembed_handler', array( cmb2_ajax(), 'oembed_handler' ) ); |
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57 | $this->once( 'wp_ajax_nopriv_cmb2_oembed_handler', array( cmb2_ajax(), 'oembed_handler' ) ); |
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58 | |||
59 | foreach ( get_class_methods( 'CMB2_Show_Filters' ) as $filter ) { |
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60 | add_filter( 'cmb2_show_on', array( 'CMB2_Show_Filters', $filter ), 10, 3 ); |
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61 | } |
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62 | |||
63 | if ( is_admin() ) { |
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64 | // register our scripts and styles for cmb |
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65 | $this->once( 'admin_enqueue_scripts', array( __CLASS__, 'register_scripts' ), 8 ); |
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66 | |||
67 | switch ( $this->object_type ) { |
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68 | case 'post': |
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69 | return $this->post_hooks(); |
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70 | case 'comment': |
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71 | return $this->comment_hooks(); |
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72 | case 'user': |
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73 | return $this->user_hooks(); |
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74 | case 'term': |
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75 | return $this->term_hooks(); |
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76 | } |
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77 | |||
78 | } |
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79 | } |
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80 | |||
81 | public function post_hooks() { |
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82 | add_action( 'add_meta_boxes', array( $this, 'add_metaboxes' ) ); |
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83 | add_action( 'add_attachment', array( $this, 'save_post' ) ); |
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84 | add_action( 'edit_attachment', array( $this, 'save_post' ) ); |
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85 | add_action( 'save_post', array( $this, 'save_post' ), 10, 2 ); |
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86 | |||
87 | $this->once( 'admin_enqueue_scripts', array( $this, 'do_scripts' ) ); |
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88 | } |
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89 | |||
90 | public function comment_hooks() { |
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91 | add_action( 'add_meta_boxes_comment', array( $this, 'add_metaboxes' ) ); |
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92 | add_action( 'edit_comment', array( $this, 'save_comment' ) ); |
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93 | |||
94 | $this->once( 'admin_enqueue_scripts', array( $this, 'do_scripts' ) ); |
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95 | } |
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96 | |||
97 | public function user_hooks() { |
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98 | $priority = $this->cmb->prop( 'priority' ); |
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99 | |||
100 | if ( ! is_numeric( $priority ) ) { |
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101 | switch ( $priority ) { |
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102 | |||
103 | case 'high': |
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104 | $priority = 5; |
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105 | break; |
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106 | |||
107 | case 'low': |
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108 | $priority = 20; |
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109 | break; |
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110 | 1 | ||
111 | 1 | default: |
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112 | 1 | $priority = 10; |
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113 | break; |
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114 | } |
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115 | } |
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116 | 1 | ||
117 | add_action( 'show_user_profile', array( $this, 'user_metabox' ), $priority ); |
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118 | 1 | add_action( 'edit_user_profile', array( $this, 'user_metabox' ), $priority ); |
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119 | add_action( 'user_new_form', array( $this, 'user_new_metabox' ), $priority ); |
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120 | 1 | ||
121 | 1 | add_action( 'personal_options_update', array( $this, 'save_user' ) ); |
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122 | 1 | add_action( 'edit_user_profile_update', array( $this, 'save_user' ) ); |
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123 | 1 | add_action( 'user_register', array( $this, 'save_user' ) ); |
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124 | 1 | } |
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125 | 1 | ||
126 | 1 | public function term_hooks() { |
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127 | 1 | if ( ! function_exists( 'get_term_meta' ) ) { |
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128 | 1 | wp_die( __( 'Term Metadata is a WordPress > 4.4 feature. Please upgrade your WordPress install.', 'cmb2' ) ); |
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129 | } |
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130 | 1 | ||
131 | if ( ! $this->cmb->prop( 'taxonomies' ) ) { |
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132 | wp_die( __( 'Term metaboxes configuration requires a \'taxonomies\' parameter', 'cmb2' ) ); |
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133 | 1 | } |
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134 | |||
135 | 1 | $this->taxonomies = (array) $this->cmb->prop( 'taxonomies' ); |
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136 | $show_on_term_add = $this->cmb->prop( 'new_term_section' ); |
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137 | 1 | ||
138 | foreach ( $this->taxonomies as $taxonomy ) { |
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139 | 1 | // Display our form data |
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140 | 1 | add_action( "{$taxonomy}_edit_form", array( $this, 'term_metabox' ), 8, 2 ); |
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141 | 1 | ||
142 | 1 | $show_on_add = is_array( $show_on_term_add ) |
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143 | 1 | ? in_array( $taxonomy, $show_on_term_add ) |
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144 | 1 | : (bool) $show_on_term_add; |
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145 | |||
146 | 1 | $show_on_add = apply_filters( "cmb2_show_on_term_add_form_{$this->cmb->cmb_id}", $show_on_add, $this->cmb ); |
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147 | |||
148 | 1 | // Display form in add-new section (unless specified not to) |
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149 | 1 | if ( $show_on_add ) { |
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150 | 1 | add_action( "{$taxonomy}_add_form_fields", array( $this, 'term_metabox' ), 8, 2 ); |
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151 | 1 | } |
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152 | 1 | ||
153 | 1 | } |
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154 | 1 | ||
155 | 1 | add_action( 'created_term', array( $this, 'save_term' ), 10, 3 ); |
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156 | 1 | add_action( 'edited_terms', array( $this, 'save_term' ), 10, 2 ); |
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157 | 1 | ||
158 | 1 | add_action( 'delete_term', array( $this, 'delete_term' ), 10, 3 ); |
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159 | 1 | } |
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160 | 1 | ||
161 | 1 | /** |
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162 | * Registers styles for CMB2 |
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163 | 1 | * @since 2.0.7 |
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164 | 1 | */ |
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165 | 1 | protected static function register_styles() { |
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166 | 1 | if ( self::$css_registration_done ) { |
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167 | return; |
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168 | 1 | } |
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169 | 1 | ||
170 | // Only use minified files if SCRIPT_DEBUG is off |
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171 | 1 | $min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min'; |
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172 | 1 | $front = is_admin() ? '' : '-front'; |
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173 | 1 | $rtl = is_rtl() ? '-rtl' : ''; |
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174 | 1 | ||
175 | 1 | // Filter required styles and register stylesheet |
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176 | 1 | $styles = apply_filters( 'cmb2_style_dependencies', array() ); |
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177 | 1 | wp_register_style( 'cmb2-styles', cmb2_utils()->url( "css/cmb2{$front}{$rtl}{$min}.css" ), $styles ); |
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178 | 1 | ||
179 | self::$css_registration_done = true; |
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180 | 1 | } |
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181 | |||
182 | 1 | /** |
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183 | 1 | * Registers scripts for CMB2 |
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184 | * @since 2.0.7 |
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185 | */ |
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186 | protected static function register_js() { |
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187 | if ( self::$js_registration_done ) { |
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188 | return; |
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189 | } |
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190 | |||
191 | $hook = is_admin() ? 'admin_footer' : 'wp_footer'; |
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192 | add_action( $hook, array( 'CMB2_JS', 'enqueue' ), 8 ); |
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193 | |||
194 | self::$js_registration_done = true; |
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195 | } |
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196 | |||
197 | /** |
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198 | * Registers scripts and styles for CMB2 |
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199 | * @since 1.0.0 |
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200 | */ |
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201 | public static function register_scripts() { |
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202 | self::register_styles(); |
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203 | self::register_js(); |
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204 | } |
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205 | |||
206 | /** |
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207 | * Enqueues scripts and styles for CMB2 |
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208 | * @since 1.0.0 |
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209 | */ |
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210 | public function do_scripts( $hook ) { |
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211 | // only enqueue our scripts/styles on the proper pages |
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212 | if ( in_array( $hook, array( 'post.php', 'post-new.php', 'page-new.php', 'page.php', 'comment.php' ), true ) ) { |
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213 | if ( $this->cmb->prop( 'cmb_styles' ) ) { |
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214 | self::enqueue_cmb_css(); |
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215 | } |
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216 | if ( $this->cmb->prop( 'enqueue_js' ) ) { |
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217 | self::enqueue_cmb_js(); |
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218 | } |
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219 | } |
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220 | } |
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221 | |||
222 | /** |
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223 | * Add metaboxes (to 'post' or 'comment' object types) |
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224 | * @since 1.0.0 |
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225 | */ |
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226 | public function add_metaboxes() { |
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227 | |||
228 | if ( ! $this->show_on() ) { |
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229 | return; |
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230 | } |
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231 | |||
232 | foreach ( $this->cmb->prop( 'object_types' ) as $post_type ) { |
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233 | /** |
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234 | * To keep from registering an actual post-screen metabox, |
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235 | * omit the 'title' attribute from the metabox registration array. |
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236 | * |
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237 | * (WordPress will not display metaboxes without titles anyway) |
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238 | * |
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239 | * This is a good solution if you want to output your metaboxes |
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240 | * Somewhere else in the post-screen |
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241 | */ |
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242 | if ( $this->cmb->prop( 'title' ) ) { |
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243 | |||
244 | if ( $this->cmb->prop( 'closed' ) ) { |
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245 | add_filter( "postbox_classes_{$post_type}_{$this->cmb->cmb_id}", array( $this, 'close_metabox_class' ) ); |
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246 | } |
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247 | |||
248 | add_meta_box( $this->cmb->cmb_id, $this->cmb->prop( 'title' ), array( $this, 'metabox_callback' ), $post_type, $this->cmb->prop( 'context' ), $this->cmb->prop( 'priority' ) ); |
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249 | } |
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250 | } |
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251 | } |
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252 | |||
253 | /** |
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254 | * Add 'closed' class to metabox |
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255 | * @since 2.0.0 |
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256 | * @param array $classes Array of classes |
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257 | * @return array Modified array of classes |
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258 | */ |
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259 | public function close_metabox_class( $classes ) { |
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260 | $classes[] = 'closed'; |
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261 | return $classes; |
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262 | } |
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263 | |||
264 | /** |
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265 | * Display metaboxes for a post or comment object |
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266 | * @since 1.0.0 |
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267 | */ |
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268 | public function metabox_callback() { |
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269 | $object_id = 'comment' == $this->object_type ? get_comment_ID() : get_the_ID(); |
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270 | $this->cmb->show_form( $object_id, $this->object_type ); |
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271 | } |
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272 | |||
273 | /** |
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274 | * Display metaboxes for new user page |
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275 | * @since 1.0.0 |
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276 | */ |
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277 | public function user_new_metabox( $section ) { |
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284 | |||
285 | /** |
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286 | * Display metaboxes for a user object |
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287 | * @since 1.0.0 |
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288 | */ |
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289 | public function user_metabox() { |
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292 | |||
293 | /** |
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294 | * Display metaboxes for a taxonomy term object |
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295 | * @since 2.2.0 |
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296 | */ |
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297 | public function term_metabox() { |
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298 | $this->show_form_for_type( 'term' ); |
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299 | } |
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300 | |||
301 | /** |
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302 | * Display metaboxes for an object type |
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303 | * @since 2.2.0 |
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304 | * @param string $type Object type |
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305 | * @return void |
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306 | */ |
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307 | public function show_form_for_type( $type ) { |
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308 | if ( $type != $this->cmb->mb_object_type() ) { |
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309 | return; |
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310 | } |
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311 | |||
312 | if ( ! $this->show_on() ) { |
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313 | return; |
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314 | } |
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315 | |||
316 | if ( $this->cmb->prop( 'cmb_styles' ) ) { |
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317 | self::enqueue_cmb_css(); |
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318 | } |
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319 | if ( $this->cmb->prop( 'enqueue_js' ) ) { |
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320 | self::enqueue_cmb_js(); |
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321 | } |
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322 | |||
323 | $this->cmb->show_form( 0, $type ); |
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324 | } |
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325 | |||
326 | /** |
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327 | * Determines if metabox should be shown in current context |
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328 | * @since 2.0.0 |
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329 | * @return bool Whether metabox should be added/shown |
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330 | */ |
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331 | public function show_on() { |
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346 | |||
347 | /** |
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348 | * Save data from post metabox |
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349 | * @since 1.0.0 |
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350 | 1 | * @param int $post_id Post ID |
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351 | 1 | * @param mixed $post Post object |
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352 | * @return null |
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353 | 1 | */ |
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354 | public function save_post( $post_id, $post = false ) { |
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355 | |||
356 | $post_type = $post ? $post->post_type : get_post_type( $post_id ); |
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357 | |||
358 | $do_not_pass_go = ( |
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359 | ! $this->can_save( $post_type ) |
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360 | 1 | // check user editing permissions |
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361 | 1 | || ( 'page' == $post_type && ! current_user_can( 'edit_page', $post_id ) ) |
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373 | |||
374 | /** |
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375 | * Save data from comment metabox |
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376 | * @since 2.0.9 |
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377 | * @param int $comment_id Comment ID |
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378 | * @return null |
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379 | */ |
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380 | public function save_comment( $comment_id ) { |
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388 | |||
389 | /** |
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390 | * Save data from user fields |
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391 | * @since 1.0.x |
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392 | * @param int $user_id User ID |
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393 | * @return null |
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394 | */ |
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395 | public function save_user( $user_id ) { |
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401 | |||
402 | /** |
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403 | * Save data from term fields |
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404 | * @since 1.0.x |
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405 | * @param int $term_id Term ID |
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406 | * @param int $tt_id Term Taxonomy ID |
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407 | * @param string $taxonomy Taxonomy |
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408 | * @return null |
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409 | */ |
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410 | public function save_term( $term_id, $tt_id, $taxonomy = '' ) { |
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418 | |||
419 | /** |
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420 | * Delete term meta when a term is deleted. |
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421 | * @since 1.0.x |
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422 | * @param int $term_id Term ID |
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423 | * @param int $tt_id Term Taxonomy ID |
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424 | * @param string $taxonomy Taxonomy |
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425 | * @return null |
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426 | */ |
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427 | public function delete_term( $term_id, $tt_id, $taxonomy = '' ) { |
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437 | |||
438 | /** |
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439 | * Determines if the current object is able to be saved |
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440 | * @since 2.0.9 |
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441 | * @param string $type Current post_type or comment_type |
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442 | * @return bool Whether object can be saved |
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443 | */ |
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444 | public function can_save( $type = '' ) { |
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456 | |||
457 | /** |
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458 | * Determine if taxonomy of term being modified is cmb2-editable. |
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459 | * @since 2.2.0 |
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460 | * @param string $taxonomy Taxonomy of term being modified. |
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461 | * @return bool Whether taxonomy is editable. |
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462 | */ |
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463 | public function taxonomy_can_save( $taxonomy ) { |
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478 | |||
479 | /** |
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480 | * Includes CMB2 styles |
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481 | * @since 2.0.0 |
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482 | */ |
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483 | public static function enqueue_cmb_css() { |
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491 | |||
492 | /** |
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493 | * Includes CMB2 JS |
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494 | * @since 2.0.0 |
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495 | */ |
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496 | public static function enqueue_cmb_js() { |
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504 | |||
505 | } |
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506 |
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.