Complex classes like CMB2_Sanitize 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_Sanitize, and based on these observations, apply Extract Interface, too.
1 | <?php |
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15 | class CMB2_Sanitize { |
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16 | |||
17 | /** |
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18 | * A CMB field object |
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19 | * @var CMB2_Field object |
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20 | */ |
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21 | public $field; |
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22 | |||
23 | /** |
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24 | * Field's value |
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25 | * @var mixed |
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26 | */ |
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27 | public $value; |
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28 | |||
29 | /** |
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30 | * Setup our class vars |
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31 | * @since 1.1.0 |
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32 | * @param CMB2_Field $field A CMB2 field object |
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33 | * @param mixed $value Field value |
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34 | */ |
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35 | 10 | public function __construct( CMB2_Field $field, $value ) { |
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36 | 10 | $this->field = $field; |
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37 | 10 | $this->value = stripslashes_deep( $value ); // get rid of those evil magic quotes |
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38 | 10 | } |
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39 | |||
40 | /** |
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41 | * Catchall method if field's 'sanitization_cb' is NOT defined, or field type does not have a corresponding validation method |
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42 | * @since 1.0.0 |
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43 | * @param string $name Non-existent method name |
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44 | * @param array $arguments All arguments passed to the method |
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45 | */ |
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46 | 8 | public function __call( $name, $arguments ) { |
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47 | 8 | return $this->default_sanitization(); |
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48 | } |
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49 | |||
50 | /** |
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51 | * Default fallback sanitization method. Applies filters. |
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52 | * @since 1.0.2 |
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53 | */ |
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54 | 8 | public function default_sanitization() { |
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55 | |||
56 | /** |
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57 | * This exists for back-compatibility, but validation |
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58 | * is not what happens here. |
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59 | * @deprecated See documentation for "cmb2_sanitize_{$this->type()}". |
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60 | */ |
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61 | 8 | $override_value = apply_filters( "cmb2_validate_{$this->field->type()}", null, $this->value, $this->field->object_id, $this->field->args(), $this ); |
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62 | |||
63 | 8 | if ( null !== $override_value ) { |
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64 | return $override_value; |
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65 | } |
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66 | |||
67 | 8 | $sanitized_value = ''; |
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68 | 8 | switch ( $this->field->type() ) { |
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69 | 8 | case 'wysiwyg': |
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70 | 8 | case 'textarea_small': |
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71 | 8 | case 'oembed': |
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72 | 2 | $sanitized_value = $this->textarea(); |
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73 | 2 | break; |
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74 | 8 | case 'taxonomy_select': |
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75 | 8 | case 'taxonomy_radio': |
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76 | 8 | case 'taxonomy_radio_inline': |
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77 | 8 | case 'taxonomy_multicheck': |
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78 | 8 | case 'taxonomy_multicheck_inline': |
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79 | if ( $this->field->args( 'taxonomy' ) ) { |
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80 | wp_set_object_terms( $this->field->object_id, $this->value, $this->field->args( 'taxonomy' ) ); |
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81 | } else { |
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82 | cmb2_utils()->log_if_debug( __METHOD__, __LINE__, "{$this->field->type()} {$this->field->_id()} is missing the 'taxonomy' parameter." ); |
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83 | } |
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84 | break; |
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85 | 8 | case 'multicheck': |
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86 | 8 | case 'multicheck_inline': |
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87 | 8 | case 'file_list': |
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88 | 8 | case 'group': |
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89 | // no filtering |
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90 | 2 | $sanitized_value = $this->value; |
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91 | 2 | break; |
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92 | 7 | default: |
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93 | // Handle repeatable fields array |
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94 | // We'll fallback to 'sanitize_text_field' |
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95 | 7 | $sanitized_value = is_array( $this->value ) ? array_map( 'sanitize_text_field', $this->value ) : sanitize_text_field( $this->value ); |
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96 | 7 | break; |
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97 | 8 | } |
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98 | |||
99 | 8 | return $this->_is_empty_array( $sanitized_value ) ? '' : $sanitized_value; |
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100 | } |
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101 | |||
102 | /** |
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103 | * Simple checkbox validation |
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104 | * @since 1.0.1 |
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105 | * @return string|false 'on' or false |
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106 | */ |
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107 | public function checkbox() { |
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108 | return $this->value === 'on' ? 'on' : false; |
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109 | } |
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110 | |||
111 | /** |
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112 | * Validate url in a meta value |
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113 | * @since 1.0.1 |
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114 | * @return string Empty string or escaped url |
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115 | */ |
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116 | 1 | public function text_url() { |
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129 | |||
130 | public function colorpicker() { |
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131 | // for repeatable |
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132 | if ( is_array( $this->value ) ) { |
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145 | |||
146 | /** |
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147 | * Validate email in a meta value |
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148 | * @since 1.0.1 |
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149 | * @return string Empty string or sanitized email |
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150 | */ |
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151 | public function text_email() { |
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165 | |||
166 | /** |
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167 | * Validate money in a meta value |
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168 | * @since 1.0.1 |
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169 | * @return string Empty string or sanitized money value |
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170 | */ |
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171 | 1 | public function text_money() { |
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194 | |||
195 | /** |
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196 | * Converts text date to timestamp |
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197 | * @since 1.0.2 |
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198 | * @return string Timestring |
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199 | */ |
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200 | public function text_date_timestamp() { |
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205 | |||
206 | /** |
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207 | * Datetime to timestamp |
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208 | * @since 1.0.1 |
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209 | * @return string Timestring |
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210 | */ |
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211 | public function text_datetime_timestamp( $repeat = false ) { |
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233 | |||
234 | /** |
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235 | * Datetime to timestamp with timezone |
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236 | * @since 1.0.1 |
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237 | * @return string Timestring |
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238 | */ |
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239 | 1 | public function text_datetime_timestamp_timezone( $repeat = false ) { |
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319 | |||
320 | /** |
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321 | * Sanitize textareas and wysiwyg fields |
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322 | * @since 1.0.1 |
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323 | * @return string Sanitized data |
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324 | */ |
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325 | 2 | public function textarea() { |
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328 | |||
329 | /** |
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330 | * Sanitize code textareas |
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331 | * @since 1.0.2 |
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332 | * @return string Sanitized data |
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333 | */ |
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334 | public function textarea_code( $repeat = false ) { |
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342 | |||
343 | /** |
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344 | * Handles saving of attachment post ID and sanitizing file url |
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345 | * @since 1.1.0 |
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346 | * @return string Sanitized url |
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347 | */ |
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348 | 1 | public function file() { |
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361 | |||
362 | /** |
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363 | * Gets the values for the `file` field type from the data being saved. |
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364 | * @since 2.2.0 |
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365 | */ |
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366 | 1 | public function _get_group_file_value_array( $id_key ) { |
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382 | |||
383 | /** |
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384 | * Peforms saving of `file` attachement's ID |
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385 | * @since 1.1.0 |
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386 | */ |
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387 | public function _save_file_id_value( $file_id_key ) { |
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402 | |||
403 | /** |
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404 | * Peforms saving of `text_datetime_timestamp_timezone` utc timestamp |
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405 | * @since 2.2.0 |
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406 | */ |
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407 | public function _save_utc_value( $utc_key, $utc_stamp ) { |
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410 | |||
411 | /** |
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412 | * Returns a new, supporting, CMB2_Field object based on a new field id. |
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413 | * @since 2.2.0 |
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414 | */ |
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415 | public function _new_supporting_field( $new_field_id ) { |
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421 | |||
422 | /** |
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423 | * If repeating, loop through and re-apply sanitization method |
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424 | * @since 1.1.0 |
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425 | * @param string $method Class method |
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426 | * @param bool $repeat Whether repeating or not |
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427 | * @return mixed Sanitized value |
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428 | */ |
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429 | 1 | public function _check_repeat( $method, $repeat ) { |
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450 | |||
451 | /** |
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452 | * Determine if passed value is an empty array |
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453 | * @since 2.0.6 |
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454 | * @param mixed $to_check Value to check |
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455 | * @return boolean Whether value is an array that's empty |
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456 | */ |
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457 | 8 | public function _is_empty_array( $to_check ) { |
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464 | |||
465 | } |
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466 |
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.